LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Ok I am almost ready & curious... what should I trap/run/dyno?

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Old 09-23-2008, 12:53 AM
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Default Ok I am almost ready & curious... what should I trap/run/dyno?

--Update--
I paid for the Dyno Time and the Tune from Ion at MadZ28! I can't wait for it to get here before the weekend and take her out for a spin but I am short one O2 Connector because well.. one melted on the old headers in the Camaro before I swapped over to the Formula lol. So I could not start it tonight. But she's ready to go visit the exhaust shop for here Y Pipe to be made!
Since I made some further changes thought I would bump this old thread and get further thoughts with the Tune Added and the BMR Adjustable Trq Arm added in. Only now next week Friday or so I should be able to provide the Dyno Results. I will do a With the tune and with the Stock ECU as well to show Mad's work in action Hell Yeah!!

So I am starting to get curious obviously now that a few friends are finishing there builds, changes etc esp with them making guesses on what they will be making. I am almost done with everything I have been working on and would like to know what I will possibly be running/trapping.

I have seen a few of these threads pop up so I hope no one minds me throwing my hat into the mix. This is what I am almost done with:
94 Formula w/WS6 Hood and LS Style Intake Ram air setup. (Its a T56)
LT4 Mild head and intake manifold porting. (Heads have both the intake and exhaust porting work of course)
LT4 Mani, cam etc fully rebuilt motor with the LT4 Pistons as well.
OBDI with LT4 Knock Sensor and MadZ28 Tune Hell Yeah!
BBK Modified 52MM TB
UDP Pulley
AIR, EGR Delete
PaceSetter Long Tubes
3" Exhaust from the Long Tubes back Hooker Muffler, no cats
4.10 Gears
UMI Sub-Frame Connectors, Control Arms, Pan Hard Bar and BMR Adjustable Trq Arm
A few of the Free Mods like De-screened maf and the coolant bypass.

We did other things but honestly none of it is really power adder's just brake upgrades, some body lightening etc. Nothing major though (Deleted unneeded things, brackets, Cruise Control lol). 275's on the rear if that make a difference to anyone commenting.

So what do you guys think? I would like to see just how I might stack up against these guys running longer gears but more power from the claims they are making. Also what I should expect in general.

Thanks again everyone!

Last edited by Cross; 10-15-2008 at 09:04 AM.
Old 09-23-2008, 01:04 AM
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Thats a tough one man, depends on how extensively the heads/intake have been ported... That will be a big part of it.

What are you running for injectors? Hopefully something around a 36, you might be pushing it if you have 30s or lower in there...
Old 09-23-2008, 01:05 AM
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I want to say 32's I think... lol, its late and honestly that was one area where I just went with what I was told was the best bet for this range. And its mild porting nothing grand I can't find the pics now.
Old 09-23-2008, 01:09 AM
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If its nothing huge you should be set with the 32s, 36s would go good with an LE2 setup (heads/cam/intake and all). If you have lightly ported LT4s with the Hotcam then I dont see you maxing out those 32s for a little bit.

My guess is Low 12s High 11s if your lucky, But thats a complete guess....and your right, its late and my judgement is off
Old 09-23-2008, 01:10 AM
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LOL Yeah that and add an elevation of 3200ft at the track here so high 12's would make me very happy.
Old 09-23-2008, 01:14 AM
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I think you got it, that elevation is going to hurt but you should be able to overcome it..

Besides, you cant tell me you wont mod further to reach the low 12s goal if you need to
Old 09-23-2008, 06:58 AM
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hey man just out of curiousity did you call speartech or AI yet??
Old 09-23-2008, 08:20 AM
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not yet, I have been working on getting a few other things handled. Sold one of the beater cars yesterday finally and have been picking up parts for a different project car.
Old 09-23-2008, 09:39 AM
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Im thinking mid to high 12s, is it an LT4 hotcam????
Old 09-23-2008, 11:05 AM
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Originally Posted by Cross
not yet, I have been working on getting a few other things handled. Sold one of the beater cars yesterday finally and have been picking up parts for a different project car.
cool man!!! congrats!! sorry about the other night my phone dead and i ended up not ahving my charger...
Old 09-23-2008, 11:55 PM
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Yes its the LT4 hot cam.

And no worries you warned me, I am off to bed though work work work.
Old 09-24-2008, 12:23 PM
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13.20's. Depends on the air though. If you can hook it you might bust a high 12 out. Its not much cam, and the heads are in question. If you were at sea level I'd say a 12.50 would be right down your alley.

Full weight? Is it a DR on the back?
Old 09-24-2008, 12:30 PM
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Originally Posted by Cross
OBDI with LT4 Knock Sensor and either a basic tune (or if NicD can fit me in a Dyno Tune)
Sorry to rain on your parade, but NicD doesnt tune LT1's anymore, im from north phoenix and called him about 6 months back and he said he stopped doing LT1's.
Old 10-14-2008, 08:41 PM
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Bump for some changes and the upcoming Dyno Run Next Friday!



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