Thanks a lot to this forum for giving me all the help and resources to get my swap done. I was wondering what others have ran with their cars. mine is a 90 rs hard top with hard core weight reduction, true duals with 15/8 primary long tubes, underdrive pully, lt4 km. 6 speed with 342s lca an mt et streets
.1787
2.0259............60ft
5.4951............330ft
8.3470............1/8 et
84.99..............1/8 mph

just wondering what other people were running

Thats pretty good for a LT1 with essentially just headers

Mine is slightly different, its the B-body LT1 in an 89 TransAm GTA, so iron heads, smaller cam. No weight reduction at all. CAI, shorty headers, and a SLP 2otL cat-back. 3.23 LS1 rear.

Can't say i'm dissapointed with it. As long as you don't flub the launch, its a consistent 102mph car. Best run was a 13.593 @ 102.37mph with a 2.15x average 60 foot. crappy radials, super stiff suspension with Spohn LCAs.

It sounds like it is running pretty good. Mine went 8.901 in the 1/8. I'm sure it had a 8.8 in it. I'm also using a iron headed b-body lt1.

B-bodys got a slightly more aggressive cam to offset the lower compression from the iron heads

F vs B-body LT1s are very similar for performance

9.30 in mine, sucky launch, missing 3rd gear full bodied, full interior GTA

No, they have a smaller cam to give them more low end punch to haul the heavier B-body cars around.

The iron heads flow slightly better, but its usually offset by the increased compression with the aluminum heads.

I want to throw a small dry shot on there to see if i can get a 7.sumthing

Hey guys, I know this is a old post but im reviving it anyways. Im just about finished with my swap and im curious of a what it may run before I finish the interior(need to know if I will need any safety gear). Im running a 84 ta that was turned into a formula. lt1 350 mahle pistons and rods, le2 heads,gm847cam, le intake,1 3/4 hooker long tubes, ram hd clutch with a t56. Any ideas. THis is just for a idea on my speed and time.

You + Dragstrip = Answer.

J/K, I dont' know. What do you think its making? There are estimators out there that are pretty close. But being a manual you probably won't see those #'s unless you are dead reliable.

I would go to the strip but I dont wannt spend 50 bucks since i can only get off to go on the weekends during events to find out im to fast and dont have the right stuff in my car ya know.

Im not sure if it wants rwhp or fwhp on this calculator.....If it wants rwhp i figured 3000lbs with me in it and 370rwhp. 11.61@116.48

If it wants fwhp, 3000lbs and 425fwhp shows a 11.09@121.98 pass.
How fast can I run before a cage of some sort is needed?

You'll have to run it, or dyno it if you want an answer. Who knows if its running right.

Before I ran my GTA at the strip after the swap I thought for sure it would only be a high 13 second ride. I was adamant that I'd be lucky to see a 13.8 or a 13.9 out of it.

Instead it just ran a 13.35 @ 102.8mph.

my old le setup trapped between 112-114. That was with a stock shortblock and a hotcam with a really old set of lloyds heads. In that configuration the car put down 350whp/360wtq. I haven't had the car dynoed or to the track with the current Ai 355. If everything is right Ron at Ai said, the car should be between 420-440whp and trap between 118-120mph. btw my car goes around 3500lbs without me in it.
Hope this gives you a ballpark.
Kory

That set up could be close to 400 rwhp depending on who did your tune. Thats enough power to go pretty fast. Trying to estimate 1/8 mile times really depends on how well you can drive, weight, rear suspension, tires, etc....

8.00@85.55

105k Mile LT1 Headman LTs, Custom Y w/ Mufflex 3.5 CatBack, Comp 1.6 Pro Mags, PowerBond underdrive pulley, SS3600 stall, and 3.42 gears.

Almost stock suspension (BMR Trak Pak TQ arm) on Nitto drag radials on a 3360lbs car.