YOULLUZ

After the trip to the track last weekend and running a best MPH of 117.19 I think I want to try for 120MPH on a stock factory longblock. No cam, rockers or head work. Car will have to be in street trim. So no slicks and skinnies, dropped cat-backs ETC.
Here are a few things IM going to do.
Swap my LS6 intake for the new LSx intake.. Can they prove 10rwhp?
Aftermarket T-body
Aftermarket Powerduct. IM still using the small pre-01 w/ my Ls6 MAF.
Electric waterpump.. People are seeing what, 5rwhp?
LS1 Edit tuning. I haven't done any performance tuning w/ it yet. Just used it to raise my rev limit and add a bit of fuel after it was detonating because of the Ls6 intake.
A few more things IM going to try.
Shifting at 5900 RPM only gave me a best MPH of mid to high 115's. On a hunch I tried shifting at 6100 and there was the extra MPH. That was as high as I could go w/ my limiter set at 6300. Next time out IM going to set it to 6500 and shift at 6300.. I think it might have a bit more MPH in it.
My front tires were at 29#s so I think I'll try 37-39 to reduce rolling resistance..
I think w/ some good air it has a 120 mph trap in it... :auto:

MC TORCH RED

whats the deal on the tpis headers??????????

Mopar Jimmy

You might get close but seriously doubt whether you will see 120 trap speeds with the mods you list and without throwing a cam in that bad boy!!! Best of luck on trying to reach your goal with the mods you plan!!! :cheers:

RWE 427

Good Luck and keep us posted! :cheers:

Dope

Gonna be really close. You're talking basically 30hp. You'll see 119 I bet, not sure about 120. Just be careful with raising your rev limiter, make sure you have better springs. Hell, I wouldn't even be running 6300rpm like you are now.

Dope

YOULLUZ

The deal is you get what you pay for.. I got mine for $300 used and after I bought them and got them home I find the AIR tubes cracked at the welds..POS tpis Headers!!!!
Its not a big deal for me seeing how I have a MIG welder at the ready, but I did have to scrape the high temp coating off to do it.. :mad

YOULLUZ

Well right now IM shifting at 6100 rpm.. Next time I go I'll try 6200-6300rpm but it might not get me going any faster.. If not, i'll just stick w/ my 6100rpm shift.. I think I can do the 120 mph trap w/ 25HP more and some good driving..I'll keep everyone posted thats for sure.. :cheers:

pdd000

:withstupid:

Dope

Also, go to ls1tech.com. Much much more hardcore tech guys over there. Last I checked, the fastest stock longblock f-body has gone 11.3 (forget the trap speed). You've got an FRC with a pretty nice weight advantage, so see what they're running.

Dope

MC TORCH RED

try 3.90 gears and a good tune[ls1 edit] and you will run well over your goal. :yesnod: :cheers:

YOULLUZ

I wont be able(nor do I want to) to get the ET those drag cars are running.. I'll be happy w/ my 120MPH and leave it at that... :D
If it runs an 11.70-80@120 on my Pilots thats just fine by me !!!


[Modified by YOULLUZ, 10:34 PM 1/6/2004]

YOULLUZ

I had the gears in mind but I really love the MPG this thing gets on the Freeway..90mph w/ the cruise on its still at 27mpg.. I can feel the car lay down in first gear trying to pull all its weight up w/ the 3.42's.. I'll make it work.. LOL

lajZ06

that will be a great accomplishment, you'll probably be close, if so don't forget the gears.

LittleBoyBlu99

:iagree: :nono:

LittleBoyBlu99

3.90 gears could give you 2-3mph more trap speed. My friends Z06 went from 118+ to a best of 122+. :yesnod: :cheers:

Y2KRoadster

What is wrong with TPIS headers?

YOULLUZ

See my above post.
As for gears.. I'll do that as a last resort..I think I can trap 120mph w/ the stock 3.42s. IM crossing the line at 5000-5100rpm so there is plenty of room for improvement.

NEPTUNEBILL

with 390s you will be running 80mph instead of 90 at 2000rpm gas milleage will not change much but 6th gear becomes a useful gear and your top end should increase as well--it will feel like an extra 50+rwhp

Blow Torch

One word - Nitrous!!!
Completly streetable and FAST!!
:D