Ok there is a kid at my school braggin up his **** and we are both wonderin who's car would win in a race mine is still in the process of bein rebuilt so who do u think would win?...My car: 406 small block heads, cam, headers, 750 holley, new intake, rebuild 700-r4 tranny with a powertraxs posi differential puttin out 370 and 450 torque. His car: 02' trans am with ls1 in it and hes put 3.42 gears exhaust and a computer on it. Motor was supposably wanked froma vette. but who knows ?? well lets hear what the great minds of thirdgen come up with

 

If it was from a vette there is NO WAY you can beat it. Sorry.

 

Well idk his car is suppose to run high 13's stock and mine is suppose to run mid 12s idk if the corvette story is true or not u know how rumors start

 

And what are those vettes puttin out anyways cant be that much more than me and im not talkin bout the twin turbo crap

 

There's no way too tell.

What heads do you have? stock 400 heads suck. What cam do you have?

That LS1 will run low 13s, most likely.

Where do you get your 370/405 #s from? Oh, and if those #s are right, no way you're at mid 12s, maybe low low 13s at best.

 

like mark said, LS1's with a good driver are in the low 13's...

 

Vortec heads and crane cam umm... got the numbers from some computer race program didnt expect it to be right but figured it was at least somewhat close

 

What are the specs on that cam, I know stock Vortecs can't handle much cam.

 

I would be highly doubtful that he has an LS1 out of a Vette. Those things do not come cheap. Given he has a 02 T/A I would think the neighborhood of mid 13's because he probally is not the best driver.

 

And let's not forget they're both LS1's in an '02 TA and even '02 Vette, cept for the Z06.

Kind of reminds me of people that say they have a 3rd Gen car with a vette motor, when really it's just an L98.

 

Lift Intake-454
Exhaust-480

Duration Intake-216
Exhaust-228

 

Wow, that's a really small cam for a 406.. Man, I'd bet you're only runnin mid-high 13s. at best.

What's your compression.

 

that one hurt....right in the heart

 

sorry didnt see ur last comment .... um.... 9.00

 

What program did you use for the estimate #s? DD2000?\ that just seems like a bit of HP for that cam, though cubes are on your side.
Well, i've been wrong in the past, so wait for a second opinion.

What gears are you running, I thought the 3:42s were yours, but there the other guys.... I hope you don't have 2:73s... then I'd say low 14s. Are you runnin the stock stall?

 

yep stock stall and got 3.23 gears but with the transmission it seems to run real good with the higher gears

 

Its really hard to say who will win. I've seen an ls1 with custom computer programming, and he couldn't even break into the 13's(6-speed and bad driving). Just be really carful on the launch. With that much tq, traction will be an issue. If he grips good and gets a jump on you, Its probibly all over. Good luck. I'm rooting for ya.

 

used dyno 2000 for numbers and i had the wrong numbers before even more sorrow 350 horse 432 pounds of torque

 

I'll put you at high 13s, I'd say with traction.

 

yeah we are gettin a set of better tires and gotta weld up the frame connectors so i dont twist my **** up

 

that must of made him mad!! i know i would get mad if i couldnt at least break into the 13s with that car!!

is this high school? dam i know i didnt have the money for a car that expensive...

 

...

 

What size headers and exhuast do you have. No mater how I figure it you are making more power than him if his car did stock. With small tube headers and mufflers I show 367 and 425. With large tube headers and open exhaust I show 383 and 442. This is with your cam and heads. Desktop dyno does tend to overestimate, but I would say that you have at least a chance if you can hook.

Ben

 

1 7/8 headers and we dont have exhaust on it yet (still rebuilding) so give me some good advice for a good exhaust system

 

What kind of car do you have? Is it a thirdgen. If so what brand are the headers. I think only on brand makes 1 7/8 headers for thirdgens and I have hardly ever seen anyone with them. I would like to know what kind of car it is though or you cant really just pick an exhaust system out of thin air.

 

yeah i tooka guess on those headers but im sure its right they are heddman very ****ty but they do the job and i have a 82 z28

 

I think headman is the company that makes the 1 7/8s but they also make 1 5/8s headers. They are long tube correct? If so I would say your best choice would be to run duals. If you dont want to spend quite a time planning how you are going to run them then you might want to consider something else although with long tubes you will need to spend some time on them whether they are duals or single. Do you car if the exhaust ends before the rear axle, or do you specifically want it out the back? Also, what kind of a budget do you have for your exhuast and can you do it yourself?

Ben

 

Wow, 1 7/8 are a bit overkill for that motor isn't it??

 

yep longtube and we are takin it to a shop to have exhaust put on it so idk whats goin to happen to it ive got roudn 3 or 4 hundred to put into exhaust

 

probably but if he was to get a good cam in it and maybe different heads or a blower they would be nice. If the motor is not in the car I would suggest getting a different cam before you put it together. The vortecs flow decent, but can not handle high lift so you would probably be best off with a custom ground cam with more duration but not really high lift. By the way are those the headman hustlers do you know?

Ben

 

No they are just the cheapos

 

So do you care if the exhaust exits the rear of the car because you will have a hard time getting a shop to do that, but with that many cubes and longtubes duals would be nice.

Ben

 

I dont care how they run it as long as it sounds good

 

They should be 1 5/8s then. I would get the s extensions and use them to lower the exhuast under the crossmember and run 2 1/2" duals along the driveshaft tunnel. If you have a good shop you might be able to get it run out the back of the car.

Ben

 

hmm, sure they're not 1 5/8, I'm about to order the $104 ones out of Jegs that that are long tubes.

 

Idk like i said i was guessin earlier

 

https://www.thirdgen.org/techbb2/sho...hreadid=139065

I would run something like deadbird did. You will need those headman x extensions to get it under the crossmember though. deadbird modified the crossmember to let his exhaust sit higher though.

Ben

 

damn the lack of space under thirdgens

 

Where in IL are you? I am in Decatur.

Ben

 

I live a lil ways away from galesburg

 

I think it'd be a good race. His car prolly doesn't have a vette motor in it. He's just saying that cause they put LS1's in vettes too and it sounds cool for some people to say they have a vette motor since he added the 3:42's he has a auto so I'd say he's running low 13's maybe a high 12 at best. You have a decent combo there imo cept for the cam which is a little small. Don't the vortec heads have really small combustion chambers? like 57cc's or something? If so you're comp should be around 10:1/10.5:1 even with dished pistons. 400's can easily be built to run. A long time ago I had a 69 chevelle that I put a internally stock junkyard 400 with nothing but a holley intake, 600 carb and small tube headers with a 3.08 gear and it ran 14.30's @102-103mph. Later I had a 406 with 12:1 pistons 2.02 camelhump heads, .518/.536 crane cam, torker intake, 780 holley, small tube headers, and 4.56 gear in a 73 nova and it ran 12.3's@110mph ('till I hit a tree head on with it ) so I'd be willing to bet you're car is capable of low 13's also so I think it'll be a close race if you both hook that is. Good luck and if you race be sure to post the results.

 

I really hope you put better valve springs on those heads before you installed that cam, .440-.450 is about the max lift for vortec springs, .480 is pushing it.

 

I dont know if anyone else realized this but the engine in the 02' TA and the vette are the SAME THING. Just minor cam and exhaust difference. Unless it is an engine from a zo6, then it is a little more power.
-Mark

 

Actually there is no cam difference they are the same exact "motor". The cars do have different exhausts and the vette has a weight advantage.

Even if you pulled off 350hp and 430 torque. You should beat him. teh people saying low 14's with traction are out of there minds. as long as you don't blaze the tires you will have 12 second trap speed at the track. On the street anything could happen but car for car you got him beat.

 

Still sounds like you're trying to pass it off as something else, call it an LS1, not a Vette motor.

 

imo i would go way bigger on the cam

 

 

Yeah well we just spent a couple months workin on the motor from a bare block and got it in and i really dont wanna take it back out. Im sure if it seems like its lackin in a couple thousand miles ill prolly get ambitious and do somethin bout it but for now its all good... Im drivin a 4 door pontiac 6000Le right now so i not complainin one bit

 

.........they're the same engines.

 

Are you sure? Ive heard the vette cams are less lobby(sp?) beacuse they are bought by older people and they like it to be smoother/quieter. I could be wrong, oh well.
-Mark