updated when i found out new info on the 3rd gen im buyin in a week

3.73s, 4000stall, Headers, 3inch dual exhaust, Ported Throttle body, Hacked up air box, Descreened MAF, Subframe connectors and lower control arms.....Still on the stock LS1 intake manifold - 4th gen, some weight reducation

3.73 locker, 3000stall, stock exhaust(will be full ehaust when i do race), air gap intake, 600 carb, 355, flat top pistons, vortech heads, cam(2or3 up from stock he said??), 1.6 roller rockers, (msd box will be on when i race too) - 3rd gen

roll and dig, whos gonan win in ideal condtions?

my votes for the ls1...if his car happends to be an 01-02 it has the LS6/zo6 intake which adds a good 15 hp...his full exhaust and mods are probably putting him at like anywhere from 310-330 with his auto. my vote is for the 4th gen but good luck
with that 4000 stall he could be running 12s easy...
my old 83z28 had performer heads, intake, cam with full exhaust and 3.73s and would never stand a chance against my 01 ss when it was stock.

I'm going to go with the LS1. Which thirdgen are you talking about? Is he on NYspeed?

the third gen is not on nyspeed but the 4th gen is. i dont own the car just yet, and i want to keep it on the DL.

no need to start more drama on that forum.

LS1

i'll have to go with the LS1, if he's got tires on that thing then mid 12's are easy, on street tires he shoudl be running a high 12/ low 13 depending on varibles.

Justin

By stock exhaust you mean just a stock catback, or are we talking stock exhaust manifolds, factory crap y-pipe, etc? What are the cam specs in the thirdgen? I'd say the LS1 is going to work the thirdgen over by what I'm assuming the setup is.

But with the proper setup and supporting mods (full exhaust a must), a decent cam (w/ some decent valve springs and required slight clearance work) a Vortec headed 350 has the potential to compete well w/ a bolt on LS1...

true he didnt list what cam he had in it, basicly what you're looking at is, does the car run a 12.......if not you're gonna have some trouble.

I'm not sure what the cam specs are. I'm going to find out hopefully today. I know the car doesn't like to idle to well because of the cam so its of a decent size. Stock manifolds, y-pipe, cat, and catback, which will be changed a few weeks after I get it.

Thanks for all the responses.

EDIT: The LS1 supposly only dynoed at 343 hp before the stall convertor.

The LS1 from both roll, and dig.

My mouth is shut. I'm more of a lurker there anyway.

343 thats about right for a bolt on auto LS1, with that stall, and that power i would guess he could easily be in the 12.60's.

Justin

If you have a decent cam (XE276HR range), and you step up to a long tubes/cutout exhaust setup you could take him I think. Vortec headed combos like that can make 400 hp and run low 12s with a dialed in suspension and good slicks.

Do either of you have tires?

street tires on both

He is going to beat you unless he can't drive. Stock vortec heads will make less power than stock LS1 heads. Also, a lumpy cam doesn't necessarily mean that it is big. The stock exhaust is going to be your biggest killer. No cam or heads will overpower the restriction of that exhaust. Are you still running TPI? With 340 at the wheels that LS1 should run 12.9 or faster and easily trap 107+. I think you are in for a beat down.

He'll trap higher and run faster than that. Hell I just have headers, exhaust, tune lid and ported TB and I'm running 12.80's@109.(still on the stock torque converter..I have enough traction issues as it is...lol)

If he's not running 12.60's or better it's a crying shame.

with QA1s and some ETstreets, that LS1 should be in the 11s easily.. thats assuming the owner knows how to drag race.


in anycase, it wouldnt be a challenge compared to a vortec 350.

Easy.

My buddy has a similair set-up.

Ate him up with my stage 2

Just evil. Wasn't pretty.

Look at my sig and it'll give you an idea on what he'd run. I have a smaller stall, and no headers, and I ran a 12.60 and that's only with 307rwhp

That's pretty damn good! With just an SLP Lid, CAI, U/P, FRA, K&N & TCI-3500... I ran a best of 12.82. Hoping to be in the mid 11's w/Kooks headers, ORY, along with the addition of Patrick's "torque" cam (stock heads are being worked on as I write).

His was 343 before the stall.

A converter doesn't increase horsepower

nope, but a good converter and some slicks will knock lots of tenths off your time.... LOL.

well my friend has a vortec ported heads/ mild cam in his g/f's 91 formula and he ran a consistant low 14's. His best was a 14.3@ 99mph. Mods on the formula (as far as i know) are 3.23 posi rear end, Stock stall / transgo shift kit, ported vortech heads, aftermarket tbi base, stock tbi with bigger injectors, edelbrock headers, and flowmaster exaust. U probably hang on for a good bit but on the upper rpm u gonna loose.

Doesnt a big converter like that actually take a way a few hp?

what you see on the dyno? yes.

what the car does in real life is entirely diffrent.

simplified example:
car makes 300hp at 3500RPM, and the engine peaks to 450 at 5500RPM.

so with a tight stall or a clutch car, you launch at 3500, with your 300hp.. then you make 325, 350, 375,400,425....ect.. as the RPMs climb up... then you shift, the RPMs drop some, then climb again.

OR
with a loose stall, you launch at 5300... the engine actually stays at almost 5500.... and for the first 120 feet down the track the RPMs vary MAYBE 200rpm... for the entire run, you're USING more power then the other car above.. even though both engines put out the same power.


like i said, thats simplfied, but thats the basic concept.


and btw, while we're talking "friends cars", my friend jason went mid 11s STOCK INTERNAL.. boltons only, in his ls1.... the biggest drop in ET?.... his 4200 stall. and before anymore makes a streetablity comment, hes daily driven it for over 60,000 miles now with that stall.. he recently changed motors over to a 383... and now... still running that same magic stall.

You can do that in a Honda.

lol, but not in the quarter mile..

Yes, yes you can.

mmk, you go do that and tell me how it goes.

LOL Put the 1.6 on the back of a go cart and it might get there.

Are you guys joking or what?

Yeah a stock honda can go 11's with stock internals. Suprised aren't we.

Not a stock honda, but some stock honda motors have internals strong enough to take the boost to run 11s.

12.60s with 307 rwhp? That's impressive. I'll be near that myself shortly after the tune, looks like I need some GOOD tires and some suspension tweaks!

opps worded that wrong.

best mod i think ive done to my SS was getting nittos... i used to have no traction in 1st gear and i could get sideways hitting 2nd gear. now i can barely lose traction. i really need to get to the track
oh i have lower control arms + panhard bar...maybe those help a little too

My LS1 dyno'd at 296HP and I ain't running no 12.60's more like 13.5's.
I am voting on the LS1 because I know what these things can do with some mods. My little 305 can stay around with one for a about half track and it usually starts pulling hard. A roll is a dangerous race for you against an LS1 race from a dig.

Uh, I think the LS1 has it pretty easily. I'm kind of biased, tho...

ok the 350 hit the dyno and through down 352 whp. Ill be pickin up the car in a few weeks. do you think i have better odds now....headers and a full exhaust will also be on when i do the race, which should give me like 30 hp im thinking

what type carb is on it? I hope it has something better than a carter carb on it. but since it has stock manifolds I really wonder what short cuts were made

I bet the ls1 has a better hp/tq curve due to it's desighn to begin with. the only advantage I see you having is the ls1 sounds way over stalled for his setup.

full exhasut will go on be4 the race...then ill use a wideband to retune the carb

Run open headers and spray the **** out of it

I think I know who you're talking about. Looks like you're going to need to run a very low 12 if you want to beat/hang with him.

i should be at almost 400 wheel be4 i race him....then ill spray towards end of summer so i can run next to bladez hopefully

Damn, it threw down 352 rwhp w/ the stock exhaust, am I reading that right? I don't know how the heck he did that, but it sounds like a pretty well done setup if true. Must have some good head porting and a pretty darn big cam or something. You will certainly have more than enough power to run w/ the bolt on LS1 if those numbers are accurate, especially after some headers. So the race will really depend on how well both cars are setup to take advantage of the power (which looks like you should have more of)...

You'll have an HP advantage, by alot! Just get some tires and roast his ***.

An LS1 with those mods should run low 12s, of course if you're really at 400 WHP, then anything 12s is all rearview mirror for you