1BAD06MCSS

I was wondering what it would take to run in the low 13 second range (13 flat) in our cars. I know headers, intake, 3 inch exhaust, CAI, tune, and what else? I have been redefining my goals for my car and was wondering how much further I need to go in order to meet my goal. And please don't comment on my 22's!! I know they are a restriction and slow me down! Obviously when I race, they will not be on there. So with that said, what else do I need to do in order to reach my goal?

94ss06gxp

iTrader: (5)

i say one of the big things is traction/launching and getting your 60' times down.

f3racer

so. wait your telling me you cant hit low 13's now with those mods? i would have thought that those alone would have done it. i figure the headers are good for 20hp, cai for 5, dp and exhaust for about 5-8, and the tune should give another 10. so on the low end it would be 340 at the crank so close to 300 wheel hp. wow that 4 speed auto really kills our cars.

2005gxp

slicks, a cutout in the dp before the cat and the mods you have should get you in the low 13's

2005gxp

these cars are also VERY HEAVY! which dosent help atall.

f3racer

isnt it 3400 + or - a few lbs

WhiteBrow24

A beefed up tranny....

707chance

iTrader: (2)

I agree! esp if you add in a small shot!!! I would also invest some money in a shift kit, dogbone/polymount and a trans cooler to help your transmission survive the beating. I think Rossko ran a 12.99 with only a 100 shot and the backseat taken out.

ttranssam

iTrader: (10)

sell it and buy a stock f body

f3racer

blasphemy!! lol

DavidGXP

iTrader: (14)

1.8 60ft times.
13.00 is setting the bar pretty high with a little 5.3 pulling a car that weighs about 3800lbs and a trans that just shifts into 3rd when crossing.

Torque is the key combined with the proper gearing. It's all about acceleration.. Wich our engine and trans lacks! 2nd gear pull is a joke. Even with my intake, and when I had headers. 3.69 gears would help 2nd gear pull but would make 1st gear traction impossible

We might not be ET kings but we do put up some pretty good mph.
With 1.8 rockers and a raised shiftpoint (6100-6200) downpipe and and K&N hittitng 105-107mph isn't too hard to do.
Check this guy out...
https://ls1tech.com/forums/ls4-front...06-89-mph.html

and

https://ls1tech.com/forums/ls4-front...lly-hauls.html

These are the old school guys who have come close.. Before headers and intake manifold swaps.

LS1 Racing

iTrader: (15)

I'd dump the speaker box and amps and yank out the back seat. Beyond that, I agree with the posts above: Throw all of the bolt-ons you can at it, and get a built trans from TEP with 3.69 gears and a taller tire.

CenTexSS

iTrader: (2)

Stall and sticky tires with bolt ons should make it easy.

1BAD06MCSS

I would loose the box when I would race too. As far as a power adder, I do not want to go there. To much risk and I know myself, I would want to hit that damn button all the time!!!!
Also, I am going to wait til the tranny goes boom to start on that endeavor. So, with all that said, do you guys see it as a possibility? Is there anyway I can do it on street tires? So I should add a cutout, rockers, and what else to my list?

2005gxp

headers
poly dogbone mount(helps alot)
intake(ls1)
you dont need the 3 inch exhaust if you get a cutout BEFORE the cat. put that cash towards slicks! lol keep the magnaflow catback
CAI
tune
cutout
rockers
ANY weight reduction possible.

GXP25

iTrader: (3)

About 83% drivetrain loss. So 340 crank would come out to ~283 HP at the wheels.

1BAD06MCSS

Would pushrods and better springs help? I am shooting for 300fwhp.

1BAD06MCSS

What did bad have done at the time of his run?

2005gxp

at your hp lvl you shouldnt need stronger springs. but if you want them its your money lol

DavidGXP

iTrader: (14)

K&N, DP, 1.8 rockers with 918 springs, HP tuned and Drag radials.
When he first got he car it was low 14's