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

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Old 04-22-2009 | 05:46 PM
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ok well i got a 96 z28 with a lt1. im running a 13.71 with the mods i have now but i was wondering what i would run with some more mods. here are the mods i wanna add

holly 58mm tb
edelbrock manifold
trick flow heads
accel 30 or 32lb injectors
aeromotive fuel pump, fuel regulator, filter
4.11 gears
eibach drag launch springs
hooker super comp full lenght headers
3in cutouts

& i got nitto drag radials what im running on now but which one would you refer the nittos or hoosier d.o.t. drag radials
Old 04-22-2009 | 06:01 PM
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ditch the Intake and have your stocker ported, That Edelbrock is proven not to perform. youll prob want bigger injectors too depending on what cam you choose and wich heads you go with.
I would say Mickey Thompson Street radials for best bite at the track.
Old 04-22-2009 | 06:03 PM
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Originally Posted by LT1 Z28
ok well i got a 96 z28 with a lt1. im running a 13.71 with the mods i have now but i was wondering what i would run with some more mods. here are the mods i wanna add

holly 58mm tb Not a bad mod for heads and cam
edelbrock manifold Have been proven to make less HP than stock ones
trick flow heads A better choice would be to have your heads ported buy a reputable place (Lloyd Elliott or Advanced induction)
accel 30 or 32lb injectors (with the mods better injectors are good)
aeromotive fuel pump, fuel regulator, filter (fuel pump yes regulator no)
4.11 gears (These would be great with a 6 speed, 3.73's for an auto)
eibach drag launch springs (other suspension mods would be better)
hooker super comp full lenght headers (Longtubes a great idea)
3in cutouts (another good idea for some extra HP)


& i got nitto drag radials what im running on now but which one would you refer the nittos or hoosier d.o.t. drag radials
Nitto's don't have a good rep for high HP cars at the track. Plus with the above mods...you need a cam to get the most out of them. Do some research and you'll be able to put together a great combo. Don't leave out the important complimenting mods. The key is research.
Old 04-22-2009 | 06:07 PM
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Originally Posted by LT1 Z28
ok well i got a 96 z28 with a lt1. im running a 13.71 with the mods i have now but i was wondering what i would run with some more mods. here are the mods i wanna add

holly 58mm tb
edelbrock manifold - NO, stock intake will do fine.
trick flow heads - Look into get either ported stock heads or ported TFS heads from Advanced Induction.
accel 30 or 32lb injectors - SVO 30-36# injectors work well (depending on your fuel demand).
aeromotive fuel pump, fuel regulator, filter - Don't need a regulator, look into getting a Racetronix fuel pump kit with a Walbro 255lph pump.
4.11 gears
eibach drag launch springs
hooker super comp full lenght headers
3in cutouts

& i got nitto drag radials what im running on now but which one would you refer the nittos or hoosier d.o.t. drag radials - MT's are nice
Don't know if you have a CAI, you definitely need one if you don't.
You didn't mention anywhere about a cam, no sense in getting heads and all the bolt on's without swapping out the camshaft. Talk to Advanced Induction about a heads/cam package.
Old 04-22-2009 | 06:10 PM
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Originally Posted by LT1 Z28
ok well i got a 96 z28 with a lt1. im running a 13.71 with the mods i have now but i was wondering what i would run with some more mods. here are the mods i wanna add

holly 58mm tb
edelbrock manifold
trick flow heads
accel 30 or 32lb injectors
aeromotive fuel pump, fuel regulator, filter
4.11 gears
eibach drag launch springs
hooker super comp full lenght headers
3in cutouts

& i got nitto drag radials what im running on now but which one would you refer the nittos or hoosier d.o.t. drag radials
This is what i would get.
LE2 package, 58cc TB, 37lb. injectors, you can just matchport the stock manny, 255 Walbro pump, adj. fuel reg., TR6 plugs, good wires, 1.6 RRs (NSA), hardened pushrods.

Is this an A4 or M6 car??
Old 04-22-2009 | 06:20 PM
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you should run anywhere between 1050's and 13.71
Old 04-22-2009 | 06:21 PM
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i got a comp cam and my heads have a 3 angle valve job, big springs, guide plates. i got 1.6 rr. comp cam lifters & push rods. i bored the block 30 over, made it a 355 & put forge pistons. got rid of the ac & smog device. k&n cai. hooker super comp shorty headers, no cats, & flowmaster muffler. i put a line lock, torque arm, traction bars, panhard rod, & i just put subframe connectors(havent ran it with the subframe connectors yet). my computer has been tune but i have got in it dyno tune yet. i had my transmission rebuilt & setup for racing, & i put a b&m shifter in it. & im running on nitto drag radials
Old 04-22-2009 | 06:24 PM
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oh & msd dist., wires, & coil too
Old 04-22-2009 | 06:24 PM
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Originally Posted by LT1 Z28
i got a comp cam Specs? and my heads have a 3 angle valve job, big springs, guide plates. i got 1.6 rr. comp cam lifters & push rods. i bored the block 30 over, made it a 355 & put forge pistons Why aren't you spraying?. got rid of the ac & smog device. k&n cai. hooker super comp shorty headers Mistake #1, no cats, & flowmaster muffler Mistake #2. i put a line lock, torque arm, traction bars, panhard rod, & i just put subframe connectors(havent ran it with the subframe connectors yet). my computer has been tune but i have got in it dyno tune yet. i had my transmission rebuilt & setup for racing, & i put a b&m shifter in it. & im running on nitto drag radials
Comments in quote...
Old 04-22-2009 | 06:44 PM
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RPM Range 1,500-5,500
Duration at 050 inch Lift: 218 int./224 exh.
Lift 0.495/0.503
Lobe 112

im all throttle, no bottle
i want to try 2 get as close as i can to 10s on motor(no sc or bottles)
Old 04-22-2009 | 06:46 PM
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Originally Posted by LT1 Z28
RPM Range 1,500-5,500
Duration at 050 inch Lift: 218 int./224 exh.
Lift 0.495/0.503
Lobe 112

im all throttle, no bottle
i want to try 2 get as close as i can to 10s on motor(no sc or bottles)
You basically have a cam that's a hair under the LT4 hot cam. With the mods you mentioned, you should be doing better than a 13.71. What's your 60' times?
Old 04-22-2009 | 06:46 PM
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and i want to keep it streetable
mines a everyday driver
Old 04-22-2009 | 06:48 PM
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Originally Posted by LT1 Z28
and i want to keep it streetable
mines a everyday driver
Not too many people have a 10 second NA street car.
Also running 10's NA is expensive, what's your budget?
Old 04-22-2009 | 06:51 PM
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yea that what i figure but i think my tranny is messing up because ill shift & it will hold back & then it kicks back in. my 60ft is 2.05
Old 04-22-2009 | 06:54 PM
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Originally Posted by LT1 Z28
yea that what i figure but i think my tranny is messing up because ill shift & it will hold back & then it kicks back in. my 60ft is 2.05
I don't see how you could have a automatic, Nitto DR's, and suspension mods, and still not cut a sub 2 second 60'. Even with a stock converter, something is not right.
Old 04-22-2009 | 07:00 PM
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umm its pretty tight. im going to trying doing these mods when i go 2 school. it doesnt have to be 10s. i just want to get close. the only thing stock is the injectors, tb, manifold, & when i had my heads done i made the mistake by not getting them ported. i am thinking about rebuilding it later on down the road & putting the lt4 hot cam in it & making it a 383 stroker
Old 04-22-2009 | 07:02 PM
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Originally Posted by LT1 Z28
umm its pretty tight. im going to trying doing these mods when i go 2 school. it doesnt have to be 10s. i just want to get close. the only thing stock is the injectors, tb, manifold, & when i had my heads done i made the mistake by not getting them ported. i am thinking about rebuilding it later on down the road & putting the lt4 hot cam in it & making it a 383 stroker
Oh man...you really need to research your cam selection/mod choices if you want to run close to 10's but you want to put a LT4 hot cam in a 383. You need to think bigger.
Old 04-22-2009 | 07:08 PM
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lol. yea i got another motor what im going to build bigger but its going to be for racing.
but the track i go to, they dont prep it & it sucks but its the closest one to me




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