Only Made 399rwhp

**blomeup647** · 04-22-2007, 08:33 AM

Went to the dyno on Friday and I was lil' disappointed cause my car only made 399. I got LS6 Heads ported by MTI with the G1 Cam with all the upgraded valvetrain stuff. Hooker 1 7/8 LT headers with Hooker y-pipe. Slp Air Lid, LS6 Intake. I don't have a catback yet, all I got is a Hooker muffler with the factory pipe. My friends think 399 is great but, I was expecting a lil' more. Does anybody have any suggestions. Thanx

**juiced99ws6** · 04-22-2007, 08:43 AM

A4 or M6

**Mr. Luos** · 04-22-2007, 10:10 AM

Originally Posted by juiced99ws6

A4 or M6

Agreed. This makes a difference concerning your numbers.

Running stock pipes back there is limiting you a bit as well.
Those headers are also too much for that motor. Probably lost some down low power with them.

**spookyz28** · 04-22-2007, 02:17 PM

Maybe you should open the up the heads more. I would go with 1.8 roller rockers if you don't all ready have them. what were the head's flow tested at?

**blomeup647** · 04-22-2007, 02:20 PM

I got an m6. Don't know how much they flowed, but its MTI's 2E LS6 Head package.

**blomeup647** · 04-22-2007, 02:22 PM

I have set of SLP headers, I did not use them again cause they bang up against everything. Should I use those again.

**juiced99ws6** · 04-22-2007, 02:38 PM

the smaller headers would give you a little more power down low as Mr Luos said. and with a full catback you would be over the 400 mark. do you have a 10 bolt or 12 bolt rear end.

**Speedy_Gonzales** · 04-22-2007, 03:03 PM

i just wished i could complain about 399

**juiced99ws6** · 04-22-2007, 03:13 PM

^^

**NvyBluMtlc02WS6** · 04-22-2007, 08:12 PM

Um, this may be a dumb question, but it says you have a '95 Camaro???

**slims00ls1z28** · 04-22-2007, 10:10 PM

Cut out. Since you know what it made I'm assuming your already tuned. Those numbers sound alright. Friend had similar set up and made 402 RWHP with just heads and that cam on a cut out. But he still had stock lid and filter so his problem is probably like yours one side flows other side kinks, add a cut out and you'll go over 400 for sure. Can ya run 1.8's with that cam? Stock gears or changed?

**SSpdDmon** · 04-23-2007, 09:42 AM

I'd say that exhaust is screwing you up more than you'd think. 1 7/8 is too big for stock cubes. Not to mention the stock catback will choke you down too. I'd suggest getting some different headers (1 3/4) and a decent catback (or at least a cutout). Who did the tune? If it was a mail order, you may have 15~20hp left in it after straightening out the exhaust and tune.

**SSwt00SS** · 04-23-2007, 09:48 AM

sounds low to me. what are the specs of your G1 cam? also, what was your rwtq number?

i definately agree with the others that your stock cat-back is hurting your #'s...

_____________________________________________
'00 SS: SLP Lid, Ls6 Intake, Patriot Stage II Ls6 Heads, Comp 224, Stainless LT's/ORY, SLP LM, Spohn LCA's/PH Rod, HP Tune: 409rwhp/388rwtq
**ported FAST 90/90 & TSP 231/237 awaiting install**

**tonyjnjz** · 04-23-2007, 09:51 AM

ill take the 17/8ths!!!! .....would they hurt my tourqe any seeing i have a stroker motor already??? i mean if they were to say lose me 5 ft lbs of tourqe but gain me 5 hp id say there worth it over 1 3/4ths

**Street Fighter** · 04-24-2007, 02:33 AM

Originally Posted by blomeup647

Went to the dyno on Friday and I was lil' disappointed cause my car only made 399. I got LS6 Heads ported by MTI with the G1 Cam with all the upgraded valvetrain stuff. Hooker 1 7/8 LT headers with Hooker y-pipe. Slp Air Lid, LS6 Intake. I don't have a catback yet, all I got is a Hooker muffler with the factory pipe. My friends think 399 is great but, I was expecting a lil' more. Does anybody have any suggestions. Thanx

How much did all of the parts cause you? I ask because I plan to do the same setup. Heads, cam, intake and headers,come December.

**blomeup647** · 04-24-2007, 05:00 AM

Thank You all for your responses. I have 6 speed, yes the car is a 95 Chevy Camaro, but with an LS1. Everything is from an LS1 car. My torque was at 376. I am gonna get the Borla catback today and I am gonna port the throttle body.

**Midnight02** · 04-24-2007, 05:22 AM

The catback and TB porting should get you over the 400 mark! I've been planning a similar setup on my car, so I'm glad to see it should get me around 400 rwhp!

**blomeup647** · 04-24-2007, 06:35 AM

I spent about $4500 with everything including Y-pipe and Headers.

**SSpdDmon** · 04-24-2007, 06:57 AM

I know I said it once already, but you should have bought smaller 1 3/4 headers.

**Street Fighter** · 04-26-2007, 02:49 AM

Did you do the install of the parts your self or got some one to do it for you? I asked because I would like to know how hard was it to do.I work on cars all the time but they are alot earlier ones and they don't have all the plugs and wires to worry about.Just thinking of tearing into my 99 TA makes me think twice about doing it myself.