LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Anybody running low 11's or 10's on motor with a lt1

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Old Oct 19, 2010 | 03:08 PM
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96WS6TRANSAM's Avatar
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Anybody running low 11's or 10's on motor with a lt1

Wanted to compair my specs on my set up to anybody out there with a 93-97 lt1 powered f-body that is running 10's or low 11's heads and cam combo trans and diff type with rear ratio with 60 foot time and mph please.

Im not up and running yet but my combo is 383lt1 solid roller cam 609 lift intake 578 ex 244@50 int 248 @50 exh tpis mini ram intake manifold afr 210's fully ported 1300cfm throttle body kooks 1 7/8"stepped headers acell dfi ecm and harness, th 400 trans with a gear vendor 3800 stall converter strange 12 bolt 4:11 gears bmr complete front and rear suspension qa1 12 way adjust shocks alll around . Just wanted to compair my specs to anyone who is already running these times

thanks
Old Oct 19, 2010 | 03:11 PM
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I'm running those times with not nearly the list of mods you have.
Old Oct 19, 2010 | 03:21 PM
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What kind of heads do you have and what are your cam specs? If you dont mind
Old Oct 19, 2010 | 03:24 PM
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The heads are ported stockers by AI, and the cam is a custom grind from them as well, 23x/24x right around .600"/.59x" on a 108 LS. Nothing fancy.
Old Oct 19, 2010 | 03:29 PM
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Sweet. After 2 more brake lines trans and oil lines we get to tackel all the fun wiring then hope fully im up and running. I only get 1 day a week to mess with it sometimes. So hopefully sometime early next year im up and running. I was hoping for a high 10 best low 11 worst case
Old Oct 19, 2010 | 03:32 PM
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A huge-cammed solid roller 383 stroker with AFR 210s, tunnel ram, Accel DFI with a monoblade, 1 7/8" headers and a TH400 better run a hell of a lot faster than low 11s, pending you have it tuned right, both in the suspension and motor.
Old Oct 19, 2010 | 05:51 PM
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Yes you should be low 10s maybe faster with a stalled TH400. It's all about traction for you, you should have all the hp needed to be in the low 10s maybe 9s. If it is tuned good and you get traction I think you will be surprised on your first run.

Last edited by henryz28; Oct 19, 2010 at 05:53 PM.
Old Oct 19, 2010 | 07:49 PM
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Suspension is all adjustable its just going to be get out there and make adjustments until it works. Tuning is the other everybody ive called only tunes factory ecm's for the ls cars i dont know anybody that can tune the acell dfi comp i have much less any one that is good at doing it
Old Oct 19, 2010 | 08:06 PM
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How much hp is needed to break into the 11's
Old Oct 19, 2010 | 08:44 PM
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yep

I have that AI 234/242 cam and heads on a stoker motor with a heavy car and driver. mods are in my signature. I have a little more in it if I can get better 60ft times.
Old Oct 19, 2010 | 11:36 PM
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Originally Posted by z275plus
How much hp is needed to break into the 11's
Depends on how heavy the car is and the trans/rear end set up. Some guys have seen 11s with boltons only; but these cars were high stalled cars with upgraded rear gears. If your looking to run fast with minimal hp, for a m6 you will need a good driver, and for a auto a good stall is a must. I like how people on the street see my car and say, "oh its a auto so it's slow"; no stalled autos are faster than m6 cars.
Old Oct 20, 2010 | 12:01 AM
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Originally Posted by RamAir95TA
The heads are ported stockers by AI, and the cam is a custom grind from them as well, 23x/24x right around .600"/.59x" on a 108 LS. Nothing fancy.
How are you getting a <1.6second 60' time on a full weight car?
What stall is your converter and what axle gears?

Last edited by MikeGyver; Oct 20, 2010 at 12:04 AM.
Old Oct 20, 2010 | 05:06 AM
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Originally Posted by MikeGyver
How are you getting a <1.6second 60' time on a full weight car?
What stall is your converter and what axle gears?
It's a Performabuilt 4000 stall and 3.90 gears on 26" ET Streets.

The car SHOULD go sub 1.5s once it's setup right, but I haven't had much opportunity.
Old Oct 21, 2010 | 12:13 AM
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What RPM do you/can you launch at?
U dont have a transbrake or anything, right?
Old Oct 21, 2010 | 04:33 AM
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Originally Posted by MikeGyver
What RPM do you/can you launch at?
U dont have a transbrake or anything, right?
No transbrake or fancy launch controller or Acme rockets, just my left foot and a quick prayer.

I leave right around 1800-2000rpm on the brakes.



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