Best Import vs Domestic race all yr

[Sleeper101]

Well Guys I am about to finish 2 very Big project cars and were gonna line them up straight out of the box and see who's got Bragging rights.

First up is My buddies 1995 Formula Transam, Has a built Lt1 383 Stroker, Forged Eagle crank, Eagle Rods, KB Forged Pistons .030 over, LT4 Hotcam kit, Fully Ported Stock heads with Bigger SS valves, Port matched LT1 Intake manifold, 58mm TB, 32lb injectors, Moroso Cold air intake, Full longtube Pacesetter headers, and a magnaflow exhaust. Backed with a set of 373 gears and a FUlly race built 4le60 Trans. He will also be pushing a 150shot.

2nd is My Built 240sx, Inline 6 Turbo charged on Propane Fuel. Has Forged internals. Bored .020 over, Cometic headgaskets, ARP bolts, 60mm Precision Turbo, 40mm Wasgate, Will be pushing around 25PSI, ( will Dyno to for 550+RWHP) Has a Cusco Exedy stg 4 race clutch, 5 speed trans, With Launch control. I am running 4.08 gears with a Full posi Rear. ( Car has been 7.40's on Stock turbo and is Now pushing 250+ More at the wheels)

Both cars Will be on Drag Radials, and We will be running 1/8th mile.

Should be a very close 6 second Race.

What do you guys think the results will be? These are 2 Very fast street cars. Were gonna do the Best of 5 races.

I have About 2 more weeks worth of work on Both then were heading off to the Dyno for tuning. Then to the Track. I will Update WIth all the results and Dyno Tuning Numbers.

[Y2KArcticSS]

Trans am will blow that rice piece of crap out of the water.














:lol: Just kidding, both nice builds, can't wait to see the race :thumbup:

[Sleeper101]

ha ha Thats wat he thought last yr also. That was until the 240 Half tracked him lol. But the Nitrous should make it interesting.

[Superluminal]

ha ha Thats wat he thought last yr also. That was until the 240 Half tracked him lol. But the Nitrous should make it interesting.

Did you hit single digit 1/4 in your 240 yet?

I'm still struggling getting into the 9s with my 4 cylinder 240SX. It's trapping at 140mph+, so it has the balls for 9s, just need to get everything dialed in.

[Sleeper101]

Nah I have not been to the track yet since the new setup. I will be going after I get it dialed in the 1/8th. I have been Non Stop on both of these cars since November.

What.are u trapping in the 1/8th?

[Superluminal]

Nah I have not been to the track yet since the new setup. I will be going after I get it dialed in the 1/8th. I have been Non Stop on both of these cars since November.

What.are u trapping in the 1/8th?

It's trapping 103mph in the 1/8. I seem to think this is where the problem area is, as the car pulls incredibly hard in 3rd and 4th, but something still seems amiss somewhere in the 1/8 mile. I feel this is why the car isn't getting into the 9s. I'm going to have to go over the tune again and do some suspension adjustments to see if it helps out. 140mph trap should be in the 9s range.

Regardless.... not bad for a 4 cylinder street car. Very few cars even come close to me in the top end, which is where the car is brutally fast.

[Sleeper101]

ya sounds like the 1/8th is were ur off. You need to be at least around 110.

What gears are you running?

Ur 60' needs to be in the 1.4 range.

But ur def knocking on the back door to the 9's. Its Just hard to get there.

[Superluminal]

ya sounds like the 1/8th is were ur off. You need to be at least around 110.

What gears are you running?

Ur 60' needs to be in the 1.4 range.

But ur def knocking on the back door to the 9's. Its Just hard to get there.

I'll get there the next time I run at the track, unless I have a catastrophe.

[Sleeper101]

Well if I dont Hit at least 9.60's this yr im gonna pull the Rb out and sell it. Then Ill build a 400sbc with a single 101mm turbo. Then will see who's boss lol!!!

[NickNuggetZ28]

any idea what the trans am will run?

[Sleeper101]

We ran it a few times last yr with the Stroker bottem end Only. Stock cam, heads, intake manifold, manifold exhaust all the way out, Stock gears, on street tires and ran 8.80's in the 1/8th. But we have not ran the new setup yet. I think With out Nitrous it should push 7.50's and with Nitrous 6.50's

[Superluminal]

Well if I dont Hit at least 9.60's this yr im gonna pull the Rb out and sell it. Then Ill build a 400sbc with a single 101mm turbo. Then will see who's boss lol!!!

I'm thinking of taking it out this Thursday. Wish me luck and a 9 second time slip.

[big hammer]

Well if I dont Hit at least 9.60's this yr im gonna pull the Rb out and sell it. Then Ill build a 400sbc with a single 101mm turbo. Then will see who's boss lol!!!

love those 400 sbc's!

www.youtube.com/watch?v=JGSA5uhRUak&feature=channel_page

[Sleeper101]

I'm thinking of taking it out this Thursday. Wish me luck and a 9 second time slip.

Better Post it up :) Good luck man!! You got any video's of ur ride in action?

[Superluminal]

Better Post it up :) Good luck man!! You got any video's of ur ride in action?

:(

No 9 seconds time slip. I fiddled with the suspension a bit, got one new best run in of a 10.18@140. Not much different than my previous best. The next pass I lowered the psi on the slicks more, softened the suspension all the way up in the rear, and raised the 2 step. The car launched harder then I've ever felt before, hit 2nd gear...... boom..... broke an axle and possibly the input shaft bearing. I did bring a spare set of old axles for backup, but I decided not to run the car again since I had to drive it back home. Also the transmission is a bit noisy now after the axle break, I'm going to pull it when I have time to see how bad the input shaft bearing took a beating. It shifts kind of rough now and whines.

Oh well, no biggy I guess, SR transmissions are decently cheap, and it held 500+whp and numerous track passes, so it exceeded my expectations. I'm going to looking into some beefier axles, as I don't want to be cut short on track day due to stock axles. Then I'm probably going to browse one of the local shops or forums for another SR transmission.... or maybe I should look into an auto setup..... hrmmmm.

So for now, the SR 240 is parked for inspection/repairs/upgrades. I guess it's time to bring the LS1 240 out for some thrashing.

[Sleeper101]

:(

No 9 seconds time slip. I fiddled with the suspension a bit, got one new best run in of a 10.18@140. Not much different than my previous best. The next pass I lowered the psi on the slicks more, softened the suspension all the way up in the rear, and raised the 2 step. The car launched harder then I've ever felt before, hit 2nd gear...... boom..... broke an axle and possibly the input shaft bearing. I did bring a spare set of old axles for backup, but I decided not to run the car again since I had to drive it back home. Also the transmission is a bit noisy now after the axle break, I'm going to pull it when I have time to see how bad the input shaft bearing took a beating. It shifts kind of rough now and whines.

Oh well, no biggy I guess, SR transmissions are decently cheap, and it held 500+whp and numerous track passes, so it exceeded my expectations. I'm going to looking into some beefier axles, as I don't want to be cut short on track day due to stock axles. Then I'm probably going to browse one of the local shops or forums for another SR transmission.... or maybe I should look into an auto setup..... hrmmmm.

So for now, the SR 240 is parked for inspection/repairs/upgrades. I guess it's time to bring the LS1 240 out for some thrashing.

Dang that sucks about breaking. I have had the same problems too. I was told to look at the rb20 skyline rear end. They are a direct bolt in with a 4.36 gear.

What kind of boost are you gettin at the line off the 2step?

[Superluminal]

Dang that sucks about breaking. I have had the same problems too. I was told to look at the rb20 skyline rear end. They are a direct bolt in with a 4.36 gear.

What kind of boost are you gettin at the line off the 2step?

The rear end is fine. I just broke the axle and possibly the transmission.

4.36 gear is way to short of a final drive, for me anyway.

On the run in which I broke I think I was between 12-14psi on the 2 step. Can't be sure, I wasn't looking at the boost gauge.

[Sleeper101]

That rb20 skyline rear end comes with axles that are extremely strong. If you buy axles for the r200 ur looking at 1200$+ There really expensive. Thats why Im going with that skyline rear end for around 300$

[Superluminal]

That rb20 skyline rear end comes with axles that are extremely strong. If you buy axles for the r200 ur looking at 1200$+ There really expensive. Thats why Im going with that skyline rear end for around 300$

Does the RB20 rear end come with a final drive that's sub 4.00? Because anything in the 4.00 range is a bit too short, and I'll have to shift to 5th at the end of the track which will kill my time.

[Sleeper101]

I really dont think The rb20 one does. But I know One of the skyline rear ends comes with a 3 something ratio. I dont remember the exact number. But I have looked into axles and rear swaps. I figured it out to be way cheaper to swap the entire unit than to Just buy axles. I was told when using the skyline rear end I could still use my 4lug hubs which is what I wanted so I dont loose my wheel combo. See idk what the sr ratio is in the trans, But with a 4.36 final on my Rb trans I pretty sure Ill be close to 7400rpm 4th gear 1/4 mile which is perfect considering I shift at 7500.

[Superluminal]

I really dont think The rb20 one does. But I know One of the skyline rear ends comes with a 3 something ratio. I dont remember the exact number. But I have looked into axles and rear swaps. I figured it out to be way cheaper to swap the entire unit than to Just buy axles. I was told when using the skyline rear end I could still use my 4lug hubs which is what I wanted so I dont loose my wheel combo. See idk what the sr ratio is in the trans, But with a 4.36 final on my Rb trans I pretty sure Ill be close to 7400rpm 4th gear 1/4 mile which is perfect considering I shift at 7500.

Well, when I was running the 4.083 final from the HICAS VLSD, the car capped out at about 125ish at the stock limiter in 4th gear. I get another 1000rpms out of her with my valvetrain. I've maxed out the J30 diffs final drive as well which is 3.92 I think. So it would have to be around a 3.5-3.9 for me to even consider it, because I'm not shifting to 5th.

[Sleeper101]

Here is a Pics of the Lt1 Short Block http://i235.photobucket.com/albums/ee40/rb25drag/0406091956.jpg

Here is the Bottom End, Forged Crank Strapped:
http://i235.photobucket.com/albums/ee40/rb25drag/0406091959a.jpg

Now im just waiting on the TB, Injectors, and My valves so I can finish the heads.

[Superluminal]

Here is a Pics of the Lt1 Short Block http://i235.photobucket.com/albums/ee40/rb25drag/0406091956.jpg

Here is the Bottom End, Forged Crank Strapped:
http://i235.photobucket.com/albums/ee40/rb25drag/0406091959a.jpg

Now im just waiting on the TB, Injectors, and My valves so I can finish the heads.

Wicked setup. Your tempting me to put my LS1 240 under the knife for some modifications.... :devil:

Seriously, I can get my LS1 into the 10s without blinking. It's almost too easy. I've just been busy with the other 240, but since it's down for repairs..... :devil:

[Sleeper101]

ha ha ya I cant wait to see this bad boy run. My Tb and injectors came in yesterday. So Hopefully Ill have it running within a week or 2.

Hey I say its time to mod the ls1 to keep up with the sr :) And a nice big cam to boot!!

I love the way this lt4 cam sounds. Has that bad attitude sound to it.

[Superluminal]

ha ha ya I cant wait to see this bad boy run. My Tb and injectors came in yesterday. So Hopefully Ill have it running within a week or 2.

Hey I say its time to mod the ls1 to keep up with the sr :) And a nice big cam to boot!!

I love the way this lt4 cam sounds. Has that bad attitude sound to it.

I was thinking decent cam + 150 shot should easily match my SR 240.

[Superluminal]

ha ha ya I cant wait to see this bad boy run. My Tb and injectors came in yesterday. So Hopefully Ill have it running within a week or 2.

Hey I say its time to mod the ls1 to keep up with the sr :) And a nice big cam to boot!!

I love the way this lt4 cam sounds. Has that bad attitude sound to it.

As fate would have it, my friend still had his old MS4 cam, that he was running in his Corvette, still laying around. So yeah, I convinced him to sell it to me and I bought some valvetrain goodness. The LS1 will be cammed pretty soon. I hope it turns out well.

[Sleeper101]

ha ha I knew it wouldnt take long before you started modding it :) You will have to take ssome good video's. I have not seen too many.

[Sleeper101]

Here is the Transam's Competition, Still under the knife, But will be back on its feet this week.

http://i235.photobucket.com/albums/ee40/rb25drag/0626082049.jpg

http://i235.photobucket.com/albums/ee40/rb25drag/downsized_0408091831.jpg

:rockon:

[Superluminal]

Here is the Transam's Competition, Still under the knife, But will be back on its feet this week.

http://i235.photobucket.com/albums/ee40/rb25drag/0626082049.jpg

http://i235.photobucket.com/albums/ee40/rb25drag/downsized_0408091831.jpg

:rockon:

What suspension are you running on the S13? That's a pretty good offset. What wheel size, tire, and offset are you using for the front and rear?

[Sleeper101]

Thanks, Ya I think it has a pretty nice stance.

The suspension is Stock struts with tein lowering springs, I cut a round n half out of the rear lowering springs so I could get it lower for better weight transfer, Made it transfer the weight ALOT better.

The wheels are 15x8 rear with a 4.5 backspacing, And the front is 15x4.5 I dont remember the backspacing on the front. I had to use a 5mm spacer to clear my calipers tho.

I have a 275-50 Dr on there now. But I wanna zero my rear camber out a little more to put some more tire on the ground on top end. But I cant tuck those 275-50's, So im gonna buy a set of 26x10.5 mt et streets.

[Superluminal]

Thanks, Ya I think it has a pretty nice stance.

The suspension is Stock struts with tein lowering springs, I cut a round n half out of the rear lowering springs so I could get it lower for better weight transfer, Made it transfer the weight ALOT better.

The wheels are 15x8 rear with a 4.5 backspacing, And the front is 15x4.5 I dont remember the backspacing on the front. I had to use a 5mm spacer to clear my calipers tho.

I have a 275-50 Dr on there now. But I wanna zero my rear camber out a little more to put some more tire on the ground on top end. But I cant tuck those 275-50's, So im gonna buy a set of 26x10.5 mt et streets.

Those 275s look wicked out back, however it seems like it's going to hit the fender if the car squats too much, might just be the angle. Camber is an issue with our cars, especially in the rear. I'm running Tein coilovers on both my 240sx (got them used and abused for cheap, and had them rebuilt). I would recommend a set of decent coilovers. Basically, what I do at the track is soften the rears all the way down to the 0 setting, so the car squats nicely. It seems to launch very well. However, I've been told that stock struts provide the best launch from many people. I just can't ride on stock suspension, it's junk to me.

Also, that's exactly what I was running, 26X10.5X15 Mickey Thompson ET Streets in the rear for the low 10 second runs. They bite excellent once you get out of 1st gear. Your setup should have more torque than mine, since you running a 6 cylinder, so you might have to lower the psi a bit more and tweak the suspension a bit, but the launch should be easier.

And, if your trying to tuck those 275s, try getting your fenders rolled out a little bit. It looks real close, I'm sure you can work something out.

[Sleeper101]

Well The 275's use to clear, But Since I lowered it another 1.5 inches and took more camber out they wont clear any more. Thats why im going with a 26x10.5

As For the Coilovers, I had a set of Megan Racing coilovers on it and All the way soft, the rear It did not have enough travel to get the weight transfered, Also the front would max out about 2inches up causing it to shock the rear end and it would go into a spin. Best I ever ran with coilovers were a 1.7 60' Spinning to the 300', I cut 1.6's on the stock the way I use to have it setup. That was @ 7psi on the 2step 5500 out of the hole.

But with this megasquirt ECU and the launch control it has built in it. They claim I can Get FULL boost off the line. so @ full boost ( I dunno what im going to run yet 20-25psi) Out of the gate IS going to make it 1 hell of a ride lol. I would really like to see a 1.3 60' This yr. Im going to Tune it for 400-450rwhp for my first few track passes so I can figure out the launch and suspension setup before I kill it with power. Then ill bump the boost on up and tune it for 550-600rwhp. Then Will see what breaks lol

[emoFTW]

so is this a rb20? 25? 26? or maybe a 2jz?

sounds like two very fast cars!

[Superluminal]

so is this a rb20? 25? 26? or maybe a 2jz?

sounds like two very fast cars!

He's running an RB25 on a Precision 60mm turbo. My 240 is SR20 powered running a custom turbo setup and a large trim GT35R. I believe his should be around 600whp on high boost, mine is around 525-550whp on high boost.

I'm trapping 140mph in the 1/4 mile with my setup and tune, his car should be similar or better once he get's it dialed in.

I'm still working on getting into the 9s with mine, I'm very close at a 10.18@140.04mph, but I recently damaged the input shaft bearing, clutch, and broke an axle during that track session (not all at the same time), so the car is down for some repairs and durability upgrades for the time being.

Currently getting my LS1 240 cammed and ready for action. It does suck having both cars apart though, now I'm stuck with a lousy daily beater.

[Sleeper101]

Well I finally got the Rb propane setup fired back up and got a few runs on the dyno sat. The Dyno kept loosing connection and would not give me an accurate hp. But That was ok because I found a fuel leak in my intercooler causing me to go WAY WAY RICH when I hit boost. I was dipping down into the 9.4 A/f range. I started out with 5psi so I could get a basic data log on my timing etc. I only turned the motor to 5800rpm's also. I was so rich up top it was pointless to try and go any further. I got some video's Ill post later tonight.

[Superluminal]

Well I finally got the Rb propane setup fired back up and got a few runs on the dyno sat. The Dyno kept loosing connection and would not give me an accurate hp. But That was ok because I found a fuel leak in my intercooler causing me to go WAY WAY RICH when I hit boost. I was dipping down into the 9.4 A/f range. I started out with 5psi so I could get a basic data log on my timing etc. I only turned the motor to 5800rpm's also. I was so rich up top it was pointless to try and go any further. I got some video's Ill post later tonight.

Nice. My SR car is still down. Been busy lately and haven't had time to work on everything. I also postponed taking apart my LS1 car for the time being, since I need something quick to satisfy my urges in the meantime. Also, I also decided not to use the MS4 cam that I got from my friend since I figured it would be a bit too aggressive for a street car. Any recommendations on what cam I should go for? Looking for about 400whp. I'm pretty sure the MS4 cam will get me there, but I'm looking to see if there is a cam that will get me there and not have an extremely peaky power band. There is just a rediculous amount of cam choices with all sorts of pros and cons. I'm looking at an MS3 cam as a possible alternative.

[WS6Rob]

gonna be A GOOD RACE

[Sleeper101]

Nice. My SR car is still down. Been busy lately and haven't had time to work on everything. I also postponed taking apart my LS1 car for the time being, since I need something quick to satisfy my urges in the meantime. Also, I also decided not to use the MS4 cam that I got from my friend since I figured it would be a bit too aggressive for a street car. Any recommendations on what cam I should go for? Looking for about 400whp. I'm pretty sure the MS4 cam will get me there, but I'm looking to see if there is a cam that will get me there and not have an extremely peaky power band. There is just a rediculous amount of cam choices with all sorts of pros and cons. I'm looking at an MS3 cam as a possible alternative.

Man we have always had the hot cam kits makke great power and they sound like a beast also. You not only get a good cam but rockers, springs etc to make it a combo. Thats what I would buy personally.

[Sleeper101]

Here is the link to my dyno pull

http://www.youtube.com/watch?v=JC-8ocDOt28&feature=channel_page

Maybe next time I can get it to lean out lol. 9.4 A/F is sucking the Hp out,

[Superluminal]

Here is the link to my dyno pull

http://www.youtube.com/watch?v=JC-8ocDOt28&feature=channel_page

Maybe next time I can get it to lean out lol. 9.4 A/F is sucking the Hp out,

Sounds pretty strong. What numbers did it put out with 10psi and the fuel leak?

[Sleeper101]

321tq and 210hp, It was so rich it wouldnt rev past 5800rpm's lol

We got a new intercooler design, So Im gonna be working on building it these next few weeks.

[Sleeper101]

Well we are going to finish the heads and intake this weekend on the lt1, Tonight I gotta modify the oil pan. Since we are using arp bolts now and straps on the mains the windage tray no longer fits so I gotta come up with a way to re-attatch it. Hopefully the motor will be back in next weekend.

[Superluminal]

Well we are going to finish the heads and intake this weekend on the lt1, Tonight I gotta modify the oil pan. Since we are using arp bolts now and straps on the mains the windage tray no longer fits so I gotta come up with a way to re-attatch it. Hopefully the motor will be back in next weekend.

I'm still undecided on cam choice. Grrr.

[Sleeper101]

So what kind of gas mileage are u seeing out of the Ls1 240?

[Superluminal]

So what kind of gas mileage are u seeing out of the Ls1 240?

I have a heavy foot, and I didn't really build the car for gas mileage, but honestly it gets better than that damn KA that came in there stock.

I would say it's low 20mpg city, and close to 30mpg highway. I've never taken the car on a long highway trip, but I guarantee if I stay off the throttle in 6th gear it will get over 30mpg. I don't see why not the engine is still on stock cam and tuned.

[Sleeper101]

Sweet, Im throwing some options around. I Will have the Rb ready for the dyno again in 2 weeks. If I dont make the numbers I want Im gonna pull it and Either build a 400 small block with a carb and turbo or swap in a Ls1 and possibly turbo. I would like to have the 6speed esp for drivin. But if I build the 400 I will go with a turbo 350. But I can build a Hell of a 400 block for the price of a ls1 drivetrane.

[Zinergy]

Sweet, Im throwing some options around. I Will have the Rb ready for the dyno again in 2 weeks. If I dont make the numbers I want Im gonna pull it and Either build a 400 small block with a carb and turbo or swap in a Ls1 and possibly turbo. I would like to have the 6speed esp for drivin. But if I build the 400 I will go with a turbo 350. But I can build a Hell of a 400 block for the price of a ls1 drivetrane.

That would be nice, my buddy us selling his turbo 5.0 setup and building a twin turbo big block, he has the block just waiting to sell his turbo kit, engine, and tranny. Its going into a late 80s mustang notch 4cylinder. Carb is nice for track but not so good for gas mileage or running in multiple types of conditions

[Sleeper101]

That would be nice, my buddy us selling his turbo 5.0 setup and building a twin turbo big block, he has the block just waiting to sell his turbo kit, engine, and tranny. Its going into a late 80s mustang notch 4cylinder. Carb is nice for track but not so good for gas mileage or running in multiple types of conditions

Nice, I have seen a few VERY nice 5.0 turbo setups. They seem pretty stout.

When I say carb I meant Propane carb, Otherwise the Custom propane cooler I built As a intercooler would not function.

But Like I say I dunno what I will do yet Until I get to the dyno again. I mean the Motor is STRONG as Hell, It will flat out put it on the ground. But I am one who likes to change alot lol, I seem to never be happy with my combo's. Im always lookin for more. My RB will be limited to about 650rwhp, So if that wont satisfy me Ill build a 800-1400hp combo.

[Zinergy]

Nice, I have seen a few VERY nice 5.0 turbo setups. They seem pretty stout.

When I say carb I meant Propane carb, Otherwise the Custom propane cooler I built As a intercooler would not function.

But Like I say I dunno what I will do yet Until I get to the dyno again. I mean the Motor is STRONG as Hell, It will flat out put it on the ground. But I am one who likes to change alot lol, I seem to never be happy with my combo's. Im always lookin for more. My RB will be limited to about 650rwhp, So if that wont satisfy me Ill build a 800-1400hp combo.

Its a stout car but the only problem is 5.0 block likes to crack down the lifter galley around 600crank hp at high rpms. So hes limited to about 10psi right now and even that is pushing the block. So he said to himself why spend all that money on a custom 302 block when it would still be a somewhat small engine. He also has a 355 small block turbo ford fairmont and his dads 70 chevelle 496 big block sitting next to it. Its a fun garage to be at sometimes.

I always cream my pants a little when the guy who does there cages has his 2000 formula over, its a 454 big block twin turbo that put down 1600whp which he drives on the street sometimes. Along with his buddy who has the 600cubic inch thunderbird with the biggest supercharger procharger makes.

I have always wanted to work on a RB engine, just never knew anyone with one. All my 240 friends have sr20s except one with a fully built KA

[Sleeper101]

Lol, Nice powered cars ur running around. Kinda sounds like the guys I hang with. My Buddies 306 Stang put down 598@the wheels on a dynojet @10lbs of boost on a 60mm turbo, Stock crank, Stock Rods and forged Pistons. His car is one of the baddest STreet cars around me. It also is 5speed, He runss 6.60's at the track @ 115mph.

Im the only one who has a 6cyl, Personally I wouldnt build an Rb again Just cause There is not alof of info If you decide to go big power. But Just as a street driver its sweet as hell. U Just dont wanna make over 600hp b/c then its hard to drive with the turbo lag n stuff.

[Zinergy]

Lol, Nice powered cars ur running around. Kinda sounds like the guys I hang with. My Buddies 306 Stang put down 598@the wheels on a dynojet @10lbs of boost on a 60mm turbo, Stock crank, Stock Rods and forged Pistons. His car is one of the baddest STreet cars around me. It also is 5speed, He runss 6.60's at the track @ 115mph.

Im the only one who has a 6cyl, Personally I wouldnt build an Rb again Just cause There is not alof of info If you decide to go big power. But Just as a street driver its sweet as hell. U Just dont wanna make over 600hp b/c then its hard to drive with the turbo lag n stuff.


Yeah we like power, more than alot of other car guys as im talking to them. They always say thats too much for me, im like 500whp thats not enough. My supra was the fastest vehicle in my garage until i put a hole in piston 3 and 5 and now the block is junk. Doing a 1jz swap soon hopefully.

The 2000 formula is a mid 7 car right now, but he is putting a carbon fiber body on and changing some things up. The thunderbird went a 8.2 but was detuned to 1200whp because its a stock suspension car and uses drag radials, it made 1732whp on its best tune.

[Superluminal]

5.0L turbo setups are mysteriously fast. N/A they're 13s-14s. Turbo they run 10s....

[Zinergy]

5.0L turbo setups are mysteriously fast. N/A they're 13s-14s. Turbo they run 10s....


Because 5.0 engines have always flowed like balls, forced induction makes them forces them to flow, pauls went a 12.8 @110mph before the turbo kit, with heads, FI cam, intake and all supporting mods and nitto 555s on back. Last time he was at the track it went a 13.3 @ 128mph with the same but now worn out nittos. He just bought some M/T drag radials so i hope that helps lol

[Sleeper101]

The heads on the 5.0 iss the restrictive part. Gget a good head and intake combo it will do ok.

I hate Nitto and Bfg drs, I could never hook on either. I always done good on the m/t tires.

[Superluminal]

The heads on the 5.0 iss the restrictive part. Gget a good head and intake combo it will do ok.

I hate Nitto and Bfg drs, I could never hook on either. I always done good on the m/t tires.

You'll love the Mickeys.

[Sleeper101]

Well for the lt1 we put all of our specs in the computer last night Just to give us an idea of the power were pushin. It showed uss at 490lb tq @3500rpm but hp was around 412,. But at 4000rpm we started loosing hp, Got to looking and found out springs they sent us from Hot cam were not strong enough and also our stock pushrods were flexing way too much. We couldnt get the exhaust out of the head fast enough do to the .022 flex of the push rods. It was showing 120psi cyl pressure before the exhaust valve ever decided to open. So were ordering some beefy pushrods and some more valve springs. According to the computer that will be good for an extra 60hp were loosing on top end.

I dunno how in depth these guys get when building a Lt1, But thats a major difference as to why Ls1's make more power on top end. But we plan on hangin in there with this Lt1 :)

[Superluminal]

Went with a TSP224r cam. I sold the MS4 cam. Installing next week.

[Sleeper101]

Well boys the Lt1 is finally finished assembled and is being set in the car today. Hopefully we will hear some noise later.

Its gonna be PIG rich and prob wont hardley run until we can get it on the dyno and tuned.

Ill post some pics of the setup later tonight.

[Superluminal]

Well boys the Lt1 is finally finished assembled and is being set in the car today. Hopefully we will hear some noise later.

Its gonna be PIG rich and prob wont hardley run until we can get it on the dyno and tuned.

Ill post some pics of the setup later tonight.

I switched my order to an MS3 cam at the last minute. It performs well... still getting it dialed in. The powerband is a lot different than the stock cam. The car pulls like a raped ape up top. I just haven't had the time to really put some time in for tuning. Nonetheless, I'm happy with the results. I'm pretty sure the car is good for 10s. Made decent pass at a full track day to a 11.0@126mph. Surprisingly, I didn't have the traction problems I was expecting. Launch could have been better since I bogged a bit, but the shifts were very good. It feels like there is a flat spot in the powerband mid range. I'm going to rework a new tune when I get the time, and dial this sucker in.

SR car still down.

[Sleeper101]

WOW sounds like ur makin good progress on the Ls1, You sure did get that cam in fast LOL, Thats also good numbers.

Well We had a Bad day all day. Seemed like Every bolt on the motor faught us.

The motor is in But with issues. Before we even attempted to start it we poured water in and it ran out the back of the motor as fast as we put it in.

I guess we left a plug out.

But then we started it and Ill be damn No oil pressure!! :kick:

So now we gotta pull the oil pan and see whats up with oil pump and why its not pumping!! These damn new parts seem to suck ass!!

Here is a few pics;

http://i235.photobucket.com/albums/ee40/rb25drag/0523091348.jpg

http://i235.photobucket.com/albums/ee40/rb25drag/0523091011a.jpg

[Sleeper101]

:flex:Well I finally finished the Lt1 today. WOW what a pain lol. But it did sound pretty dang good. I think it is going to make some good power. Im going to take it friday to get the exhaust finished and then saturday to the dyno. I hope to have this race between these 2 cars within the month. Its going to be a close one.

I did some more tuning on the 240 and Got the poping out. Plus got an exhaust on it. Im fixin to change the IC piping around and a few little nic nacks. I also hope to see some more Dyno time sat so i can fine tune. Then its time to raise some Heck on the streets and track.:nana:

[Sleeper101]

Well as a little update to this race. We have had a few issues out of both cars. We just got the LT1 back from the dyno. The ignition system is all over the place, I gotta replace the opti cap, Rotor button, and plug wires so they can get a good tune.

As for the 240, I got a decent tune on 15lbs boost. I still need to dyno tune so I can finish my timing map down low. i tried a 17psi street pull last night and I blew a intercooler coupler and caused a lean pop half throttle that did some damage, I blew the intake coupler into 2 pieces and damaged my fuel valve in my carb. But The race is still on. We just gotta get all these little problems fixed so we can make a good show down.