Whats possible for me to run with 373rwp,371rwtq?

[dhillyard]

Hey guys, last time i ran with 356 rwhp and i could only get a 13.14 @110mph.

What do you think I should run now? All that is done is Mac mids, ORY, Corsa Cat-back with open dump after the y, 80mm BBK TB, SFCs, STB, SLP lid w/ k&n, short stick for the m6 with stock gears and chassis dyno tuneed to 373rwhp, 371rwtq.

Also on the stock crappy 275 goodyear eagles :brick:

[99blueZ]

those are pretty good #s for your mods. Make sure you deflate your tires and get those 60' down. if you ran 13.1 before i would guess 12.8-12.9 now. Good luck!

[silverz28camaro]

my car is 13.08 @107 with factory wheels 1.988 60 havent dynoed but probably around 316 being stock besides slp cai, and magnaflow 2.73

get traction and see your 12.4

[dhillyard]

well, i have my street tires, how much psi should i run in them at the strip? Also, what is the best choice of drag radials and what size? thanks for the tips guys.

[stevegrizzle]

i think a lot of people are having good things to say about teh m/t et streets. I personally like the nitto555r's.

[perkdaddy08]

i think a lot of people are having good things to say about teh m/t et streets. I personally like the nitto555r's.

I have had both and the m/t drag radials hook way better but the nittos last a lot longer so its really just a matter of what you want.

[perkdaddy08]

Hey guys, last time i ran with 356 rwhp and i could only get a 13.14 @110mph.

What do you think I should run now? All that is done is Mac mids, ORY, Corsa Cat-back with open dump after the y, 80mm BBK TB, SFCs, STB, SLP lid w/ k&n, short stick for the m6 with stock gears and chassis dyno tuneed to 373rwhp, 371rwtq.

Also on the stock crappy 275 goodyear eagles :brick:

Oh yea you might want to invest in a 12-bolt or 9" rear end.

[ss~zoso~ss]

grab a panhard bar for about 100$ that will help with traction

[JETNITRO]

Hey guys, last time i ran with 356 rwhp and i could only get a 13.14 @110mph.

What do you think I should run now? All that is done is Mac mids, ORY, Corsa Cat-back with open dump after the y, 80mm BBK TB, SFCs, STB, SLP lid w/ k&n, short stick for the m6 with stock gears and chassis dyno tuneed to 373rwhp, 371rwtq.

Also on the stock crappy 275 goodyear eagles :brick:



put a set of drag radials on and you might run 12.30-12.40

[GA Country Boy]

Don't let anyone tell you that deflating radials is going to help you. Radials have hard sidewalls and are not designed to run with lower pressures like bias-belted
slicks that have soft sidewalls and will wrinkle. Deflating radial tires causes them to cup in the center and in fact reduces the amount of tire reaching the ground and also reduces the amount of traction.

[stevegrizzle]

I agree with in principal, however, running drag radials at 30 psi will result in less traction than at 22-24 psi. IMHO running below 20 psi will result in less traction and so on. There is definately a point where you are at the optimum level of traction and it is not at the 30 psi level.

[GA Country Boy]

I agree with in principal, however, running drag radials at 30 psi will result in less traction than at 22-24 psi. IMHO running below 20 psi will result in less traction and so on. There is definately a point where you are at the optimum level of traction and it is not at the 30 psi level.

I thought we were talking about "Goodyear Eagles" that the ORIGINAL poster is running. BUT if you're NOW talking about DRAG RADIALS I would offer this info from BFG:

"It is also important to remember that the Drag Radial operates most efficiently on the strip at COLD inflation pressures of between 15psi and 20psi (in no case should below 12psi be used). And after the racing is done for the day, it is essential that Drag Radials be reinflated to normal highway operating pressures in order to safely bring the driver and trophy back home. Running any tire at relatively low inflation pressure for a given load reduces the tire's speed capability by causing it to stretch more and operate at a high deflection (more radial bulge). The Drag Radial is built to withstand brief "bursts" of high speed while inflated at low pressure (such as would be experienced on a quick car in the quarter-mile), but no tire can be expected to survive for a long time at high speed while operating at high deflection."

You DON'T want to ever run regular radials at 15-20psi!!!

[stevegrizzle]

my mistake, i thought we were talking about drag radials. we are in agreement.

[onyx_rock]

Hey guys, last time i ran with 356 rwhp and i could only get a 13.14 @110mph.

What do you think I should run now? All that is done is Mac mids, ORY, Corsa Cat-back with open dump after the y, 80mm BBK TB, SFCs, STB, SLP lid w/ k&n, short stick for the m6 with stock gears and chassis dyno tuneed to 373rwhp, 371rwtq.

Also on the stock crappy 275 goodyear eagles :brick:

You got a dyno sheet to prove those numbers. Im having a real hard time believing 370+ HP with mids, ORY and lid.

[stevegrizzle]

he has a 80mm TB and a tune too.

[onyx_rock]

Still aint seein 370+. Im gonna call :bs: until I see proof.
If you look in my sig at my mods and a tune from Mikey at Rapid Motorsports I was just under 350.
Oh and I ran 12.46@107.9 with a 1.68 60ft on BFG DRs.

[Roastem]

Hey guys, last time i ran with 356 rwhp and i could only get a 13.14 @110mph.

What do you think I should run now? All that is done is Mac mids, ORY, Corsa Cat-back with open dump after the y, 80mm BBK TB, SFCs, STB, SLP lid w/ k&n, short stick for the m6 with stock gears and chassis dyno tuneed to 373rwhp, 371rwtq.

Also on the stock crappy 275 goodyear eagles :brick:

I needed a cam to hit those numbers. :thinkin:

Good traction should net you low 12's.

[onyx_rock]

Most do. Thats why I call BS. Havent heard back from him.

[stevegrizzle]

Still aint seein 370+. Im gonna call :bs: until I see proof.
If you look in my sig at my mods and a tune from Mikey at Rapid Motorsports I was just under 350.
Oh and I ran 12.46@107.9 with a 1.68 60ft on BFG DRs.

I'm trapping higher than that with just LT's and an ORY and Cutout, on 93 oct. not near that on the 60's tho....

[PEWTER Z]

Still aint seein 370+. Im gonna call :bs: until I see proof.
If you look in my sig at my mods and a tune from Mikey at Rapid Motorsports I was just under 350.
Oh and I ran 12.46@107.9 with a 1.68 60ft on BFG DRs.

I have to agree. My dyne tune was netted 300 RWHP, with my converter unlocked, and I've managed a 12.56 @ 108 on BFG DR's myself.

[onyx_rock]

I'm trapping higher than that with just LT's and an ORY and Cutout, on 93 oct. not near that on the 60's tho....

Thats cause of the TC. I trapped higher before TC too but ET was 12.9x.
Whats your ET?

[stevegrizzle]

12.9, @ 108.6

[ProwlerZ]

I'd say those #s sound more like uncorrected cold weather numbers. A bolt on car should be peaking around 350... Not calling BS though, but you should check the dyno, a lot of shops will pull the correction off to make their tune look better...

[INMY01TA]

That was obviously a VERY generous Dynojet. No way it was a Mustang dyno.

[dhillyard]

Okay fellas, if you don't want to believe me i will show you the numbers, back in August before college started back up.

http://i128.photobucket.com/albums/p162/dhillyard1337/FirstDynoRun.jpg

Sorry, don't have a scanner, but took a picture of what counts, and yes, it was on a mustang dyno, and yes all the mechanics there were blown away at how mean my baby was pulling. I had a "freak" was the term they called her read it and weap :) But anyways, sorry I never check back here, but now I got a set of 315 Nittos so next summer we will see what she really runs :).:woo: :woo:

[djvaly]

Okay fellas, if you don't want to believe me i will show you the numbers, back in August before college started back up.

http://i128.photobucket.com/albums/p162/dhillyard1337/FirstDynoRun.jpg

Sorry, don't have a scanner, but took a picture of what counts, and yes, it was on a mustang dyno, and yes all the mechanics there were blown away at how mean my baby was pulling. I had a "freak" was the term they called her read it and weap :) But anyways, sorry I never check back here, but now I got a set of 315 Nittos so next summer we will see what she really runs :).:woo: :woo:

what is the altitude where you go for 1/4mi? is the time corrected for altitude/elevation already?
with 370rwhp you should do 12.6 easily here in Ennis TX track... that's without the DR tires, with just Goodyear F1 tires or so...

[dhillyard]

the altitude at milan dragway is said to be 600 feet. My car is running the 1/4 at 111 last time i was there, but i wasn't driving since i was no longer a high school student for high school drags haha.

[98ls1blackbird]

OK, here goes, I just checked the numbers on the Moroso Power Speer calculator, which I have found to be extremely accurate. I am guessing that your weight with you in the car is going to be similar to my 98 TA with my fat ass in it and that is 3740 pounds. I do not have my car lightened nor do I take anything out of the car to race. That being said you should be able to run 12.10 at 112 mph, if you can get your car to launch. Your mph at 110 mph is real close, so you have some work to do. Good Dr's suspension mods and seat time at the track will get you there. Good luck.

[BLKCLOUD]

Okay fellas, if you don't want to believe me i will show you the numbers, back in August before college started back up.

http://i128.photobucket.com/albums/p162/dhillyard1337/FirstDynoRun.jpg

Sorry, don't have a scanner, but took a picture of what counts, and yes, it was on a mustang dyno, and yes all the mechanics there were blown away at how mean my baby was pulling. I had a "freak" was the term they called her read it and weap :) But anyways, sorry I never check back here, but now I got a set of 315 Nittos so next summer we will see what she really runs :).:woo: :woo:

You cannot compare the RWHP off a load-bearing dyno (such as a Mustang dyno) to those from a Dynojet (which is what the majority of people reference). Also, it is important to know what (if any) correction is applied to the dyno run in order to make a comparison of even Dynojet numbers even somewhat applicable.

The bottom line is I'm sure you made the power you said you made with the mods you said you had. However, I'd be just as sure that if you were to dyno the car on a typical dynojet with an SAE correction, you'd get a typical RWHP reading for an internally-stock, externally-modified LS1 - probably around 350 RWHP.

As for what you should run....anywhere from high 11s to mid 12s depending upon vehicle weight, traction, driver ability, track conditions, and weather conditions. MPH should be in the 110-115 range, also dependent upon the above (especially the weight, track, and weather).

[GA Country Boy]

That was obviously a VERY generous Dynojet. No way it was a Mustang dyno.

I posted on this subject previously, but for your edification I will repeat it.
A guy who owns and operates his own dyno answers your question like this.
"The biggest problem w/ comparing MD to DJ is most of the time the MDs are load contol and being compared to DJ inertia. If all info into the MD LC is not absolutely accurate(also like the DJ LC), you will get differences.
-One of a perf. shops little tricks, change the vehicle weight input, even by a hundred pounds will skew the numbers quite a bit to show the part they just sold you did something for HP.

I dont have a problem w/ either one, they are both industry leaders(I just happen to prefer DJ) The main problem is inept or corrupt operators. If you go on a Load Control Dyno, your car better be weighed, with the person in it doing the testing. Go over all the parameters with the operator to make sure you are getting what you paid for.

Here is the last word, the numbers w/ our Vette we got on our Dynojet inertia, were virtually identical to a MustangDyno load control when all the correct run parameters were put in. But on the other hand, with MD being only a couple miles from our homebase and Dynojet being 2500 miles away, and I picked the Dynojet- draw your own conclusion."