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

10sec allmotor LT1! questions

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Old 12-10-2008, 03:07 AM
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Question 10sec allmotor LT1! questions

Well not yet, but soon! I am wanting to know if i got a 355 w/ LE1 heads, LE ported intake, comp cams 306, 1.6 RR's with 52mm TB, 30lbs injectors, and get it tuned finally plus getting a 12bolt with 4.10's would drop me down to atleast 10.70's in summer weather? I may also upgrade to a Hughes Racing4000 stall if neccesary. The times in my sig were run Houston Raceway in this weather : 50*Temp 40%Hum 30.26Baro
Old 12-10-2008, 03:42 AM
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Work on the front suspension, springs, shocks, and skinnes.
Old 12-10-2008, 07:11 AM
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possible? yes I have seen some crazy times out of combo's before, but I think you will need more of a setup.

The car would need to be very light to do what you are asking with the combo listed.

now better heads, custom cam, and a very efficient drive train is more practical IMO to accomplish your goal, but it won't be as easy

gear and tuning as you listed is not going to give you the gains you want

I suggest looking at the fast list and the setups listed should help you some.

EX: my 396 with stock ported heads/intake @ 3400 race weight goes 10.89@123 1.45 60ft
Old 12-10-2008, 07:34 AM
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I am looking for that out of my 383/t56, hope to get a 11.0 na, got 11.93 with 8 degrees of false spark retard, so I think I should be able to pull it off, and also with a 48mm TB
Old 12-10-2008, 07:48 AM
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Looks like you have a light raceweight, so that's a good start.

My car weighs in at 3580 raceweight with driver, see sig for times.

For starters I think your cam selection could be better.. cc306 is old news. I like the 4.11's out back, but talk to Yank about their PT converters.. it's working well in my all motor setup.
Old 12-10-2008, 08:09 AM
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Originally Posted by Javier97Z28
Looks like you have a light raceweight, so that's a good start.

My car weighs in at 3580 raceweight with driver, see sig for times.

For starters I think your cam selection could be better.. cc306 is old news. I like the 4.11's out back, but talk to Yank about their PT converters.. it's working well in my all motor setup.
Ya the race weight will most likely be down to high 2900's since there is another 60 or so pounds i know of and also looking in to tubular k-member. Ya i know the cc306 isnt the greatest but i was just going close to what loyd elliot was saying about one of his cams. And i am actually considering going to a 4.30 rear gear since i have the TH350 vs. the 4L60E now.
Old 12-10-2008, 09:51 AM
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Originally Posted by Javier97Z28
Looks like you have a light raceweight, so that's a good start.

My car weighs in at 3580 raceweight with driver, see sig for times.

For starters I think your cam selection could be better.. cc306 is old news. I like the 4.11's out back, but talk to Yank about their PT converters.. it's working well in my all motor setup.
yes you combo is one to work with...it's fly'n for the setup.

I missed the race weight in his sig...that's light and in that case the combo is going to need some changes based off your current results ( if done at this weight now )
Old 12-10-2008, 09:58 AM
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Originally Posted by 95z28camaro
Well not yet, but soon! I am wanting to know if i got a 355 w/ LE1 heads, LE ported intake, comp cams 306, 1.6 RR's with 52mm TB, 30lbs injectors, and get it tuned finally plus getting a 12bolt with 4.10's would drop me down to atleast 10.70's in summer weather? I may also upgrade to a Hughes Racing4000 stall if neccesary. The times in my sig were run Houston Raceway in this weather : 50*Temp 40%Hum 30.26Baro
Are you SURE about your raceweight? You know raceweight is weight with you in the car. I have seen VERY few cars under 3100 lbs ready to race.

I dont see you running 10.70 in Houston summer heat with that combo, no.
Old 12-10-2008, 10:07 AM
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Originally Posted by LS1 SPEED
possible? yes I have seen some crazy times out of combo's before, but I think you will need more of a setup.

The car would need to be very light to do what you are asking with the combo listed.

now better heads, custom cam, and a very efficient drive train is more practical IMO to accomplish your goal, but it won't be as easy

gear and tuning as you listed is not going to give you the gains you want

I suggest looking at the fast list and the setups listed should help you some.

EX: my 396 with stock ported heads/intake @ 3400 race weight goes 10.89@123 1.45 60ft

I agree, I think you'll need more ponies to accomplish 10's natural.
Old 12-10-2008, 11:26 AM
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Originally Posted by LS1 SPEED
yes you combo is one to work with...it's fly'n for the setup.

I missed the race weight in his sig...that's light and in that case the combo is going to need some changes based off your current results ( if done at this weight now )
What kinda changes are you thinkin? I may be doing a partial trade on my bike with someone that has a 355 with le1's and le intake is why im askin this. so what kinda hp do you think ill need to do this with my setup? everything in sig plus 12bolt w/4.30 and 4k stall and a Tune.
Old 12-10-2008, 11:30 AM
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Oh and yes it is 3080 lbs with me in it, I weigh 175. I dont daily drive it anymore so i made it a Full Unbolted Car lol
Old 12-10-2008, 11:38 AM
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while keeping the stock short I do see it possible still or build a 383+cu with the below listed suggestions

-head update by LE or similar 2 or 3

-custom cam

-get the valvetrain in order to get some good RPM out of the combo

I say LE since I have used him and done a couple of his setups on cars and have been pleased.

if keeping it NA I suggest 4000+ stall as mentioned

gear/tire choices have to be made based off the combo

good dyno tune
Old 12-10-2008, 12:01 PM
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Not a fan of the over priced LE stuff. AFR it the way to go. I would be running a set if I didnt get a GREAT deal on my heads. I am running this cam in my combo and it is insane
HR-234/365-2S-12.90 IG, pulles through 7k
Old 12-10-2008, 12:05 PM
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AI is proven, le is like sean said, over priced i got my 210cc AFRs new for 1100 shipped to my door NIB
Old 12-10-2008, 12:12 PM
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Originally Posted by LS1 SPEED
while keeping the stock short I do see it possible still or build a 383+cu with the below listed suggestions

-head update by LE or similar 2 or 3

-custom cam

-get the valvetrain in order to get some good RPM out of the combo

I say LE since I have used him and done a couple of his setups on cars and have been pleased.

if keeping it NA I suggest 4000+ stall as mentioned

gear/tire choices have to be made based off the combo

good dyno tune
i agree completely with this the heads need to be updated and u need a custom cam. if you hav some money to spend id look into AI they hav some very impressive set ups and since you dont drive it anymore i think they can help u meet your goal
http://www.advancedinduction.com/AiPerfLT1.html
here a link to there results theres some cars runnin impressive times
Old 12-10-2008, 12:21 PM
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There are deals out there on some used heads, just need to find them
Old 12-10-2008, 12:23 PM
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Originally Posted by ZeeTwentyFate
AI is proven, le is like sean said, over priced i got my 210cc AFRs new for 1100 shipped to my door NIB
Are you saying your NIB AFR's flow as much as LE ported stockers.?
Old 12-10-2008, 12:27 PM
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Originally Posted by ssean92
Not a fan of the over priced LE stuff. AFR it the way to go. I would be running a set if I didnt get a GREAT deal on my heads. I am running this cam in my combo and it is insane
HR-234/365-2S-12.90 IG, pulles through 7k
Line up a set of unported AFR's up against my car, see how it fares for you.
Old 12-10-2008, 12:44 PM
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i bet i can take my soon to be finished 396 with ported AFRs and single plane with a solid roller and rip the bumpers off yours...and thast with a 6 speed, with that being said you have one of the faster LE head/cam cars ive seen im not looking to get my car to 60' like mad...i want something thats going to run circles around autos on the street tho... hell with a stock motor 150 and a 6speed in a gutted car i bet i could have run close to what you run now though but coulda woulda shoulda...
Old 12-10-2008, 12:44 PM
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Originally Posted by Michigan Skip
Are you saying your NIB AFR's flow as much as LE ported stockers.?
CNC race ready heads? yes i would say so, let AI get a hold of them and oh HELL yea


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