02WS6#519

I recently took the car to the track and ran a 13.4@107mph with a 2.3 60'. I am in the process of installing the heads/cam. How much should I expect my et's to lower given the exact 60' and conditions? How much rwhp gain should I expect? I am at an elevation of 4000ft. The heads have 2.02/1.60 Ferrea Valves fully ported and flowed 300cfm's@.600. The cam is a Comp Cams 224/224 .581/.581 112lsa.

My current mods are Hooker LT's, Off-Road Y-Pipe, Loudmouth, ASP UD Pulley, K&N FIPK and Ported Throttle Body. And I am running on 315/35/17 Nitto Drags. The car is an '02 WS6/M6.

Thanks
Ever

goinbroke

with a setup like that and a better 60 foot, you should run low to mi 11's. on my old setup (similar cam) i went from a bolt on 12.9 to a h/c 12.08 not launching hard because of stock rear.

02WS6#519

So with the H/C you dropped almost a full second! Wow! How much of a hp gain did you get? Did you get your car tuned? It's going to be a while before I get the car tuned.

Thanks
Ever

JZ'sTA

iTrader: (23)

First off not to bash you too much but how in the hell did you run a 13 anything with those mods?
I went 13.3 bone stock # 105.x MPH
That is awful. Try feathering the clutch/ better burn out/ lower air pressure/ leaving the RPM's lower at launch/ something. With the setup you have now there is no reason why 1.8 60 ft's aren't coming out of your car.
I would suggest a phat burnout, and launching at 3000 RPM's and giving it 90% for the first 1/2 secent then massing it. 1.9's at worse.
Sorry to bash you there. A linelock would probally be a great mod for you as well.
Whose heads are you buying?
On avarage a H/C car with boltons and heads from a very good heads shop and a similar cam is making between 400-415 HP. This is avarage.
Most are also running 11.50-12.00's depending on weather, driver, syspension, gears, clutch, tires etc etc....
I am also referring to the avarage street car with full weight or close to full weight.
Im my own oponion to max out your car you need to make sure you have a 410 gear. Have a good set of heads from someone like AS, TEA PP etc.
Buy a set of 26x10x15's with weld wheels. Get a clutch that can handle the power. Syspension. MAD tuning. Launch at 6000 RPM's. Have a good exhaust setup and the right combo of boltons.
This is the way the faster LS1's achieve their times with H/C cars with a cam of this size.
Good luck to you, and sorry if I scared you by listing all these things.

02WS6#519

First of all I ran a 13.8@102 bone stock with a 2.2 60' on street tires. And since the track has been recently renovated the traction there sucks! Even people on ET Drags were pulling 2.0-2.1 60' times. Like I said the elevation here is about 4000ft and everybody that has a stock LS1 runs 13.9-14.1 on street tires. I think that with my mods and a decent 60' (1.8-1.9) at a different track I should run in the 12's. Which is good for the elevation and comparing how every other car runs here. I am a decent driver and tried everything from launching off idle to feathering the clutch.

Peace
Ever

02WS6#519

Back to the original question:

I recently took the car to the track and ran a 13.4@107mph with a 2.3 60'. I am in the process of installing the heads/cam. How much should I expect my et's to lower given the exact 60' and conditions? How much rwhp gain should I expect? I am at an elevation of 4000ft. The heads have 2.02/1.60 Ferrea Valves fully ported and flowed 300cfm's@.600. The cam is a Comp Cams 224/224 .581/.581 112lsa.

My current mods are Hooker LT's, Off-Road Y-Pipe, Loudmouth, ASP UD Pulley, K&N FIPK and Ported Throttle Body. And I am running on 315/35/17 Nitto Drags. The car is an '02 WS6/M6.

Thanks
Ever