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

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Old 12-05-2011, 08:29 AM
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Default lt1 ?s

ok my dad would like to know hp gans with some parts maybeyou can help
what kinda power #s will you see on a 93 camaro z28 4l60 and wht kinda 1/4 times its got stock a 2.73 rear gear car seams like a new on
1 52mm tb=?hp
2 headers=?hp
3 k&n cai=?hp
4 elbow for intake=?hp
5 chip=?hp
6 roller rockers 1.6=?hp
7 air foel=?hp
thanks for any help and is there an free mods ?
Old 12-05-2011, 09:28 AM
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I've picked up a total of 44 rwhp with, 1.7 rockers and 26918 srings, ASP 945103 balancer set, EWP, tune and shorty headers with a complete dual exhaust system. 17 alone was from the exhaust.
Old 12-05-2011, 10:19 AM
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Originally Posted by 93z28de
ok my dad would like to know hp gans with some parts maybeyou can help
what kinda power #s will you see on a 93 camaro z28 4l60 and wht kinda 1/4 times its got stock a 2.73 rear gear car seams like a new on
1 52mm tb=?hp
2 headers=?hp
3 k&n cai=?hp
4 elbow for intake=?hp
5 chip=?hp
6 roller rockers 1.6=?hp
7 air foel=?hp
thanks for any help and is there an free mods ?
Save your money on the throttle body and air foil. Do headers and full exhaust, k&n, elbow, rockers, and a tune. It may not feel tons more powerful since it has 2.73's. Put gears on the list also, 3.73's is what most people like with the auto, I went with 4.10's and wouldn't want anything else.
Old 12-05-2011, 10:28 AM
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I bought an airfoil for my car when I first started modding it. I HIGHLY doubt it did anything, but it was cheap.
Old 12-05-2011, 10:57 AM
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Yes Airfoils are worthless unless someone gives you one, we tested one on the dyno, and saw 0 to 1 HP, I know that driving with a little more head wind may be different but to purchase one...Nope, Of course there is a guy that claimed he put one on right on the dyno and gained 30 RWHP
Old 12-05-2011, 11:31 AM
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Try this site: http://www.ws6.com/mycar.htm
Old 12-05-2011, 01:20 PM
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Originally Posted by moehorsepower
Nope, Of course there is a guy that claimed he put one on right on the dyno and gained 30 RWHP
Ha, id love to see this!
Old 12-05-2011, 01:47 PM
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i would recomend exhaust and cold air/elboww, but after that gears and stall... i have 4:10's and a Vig 3600 and my car runs mid 12's N/A and into the 11's on a little spray...imo throttle bodies without the rest (intake porting/heads) is not worth it...but it all depends on your long range goals...is it a DD?
Old 12-05-2011, 02:28 PM
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Default ok thanks

exhaust and cold air have been done and i did a homemade elowbo a cop car one and used fiberglass to cover the big hole i think it may of hurt more than helped and put a cone filter were the stock airbox would be.thanks for your help i want the gearing to stay the way it is its nice to ride down the road at 65mph and only turn 1500rpms
Old 12-06-2011, 07:52 PM
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Originally Posted by 93z28de
exhaust and cold air have been done and i did a homemade elowbo a cop car one and used fiberglass to cover the big hole i think it may of hurt more than helped and put a cone filter were the stock airbox would be.thanks for your help i want the gearing to stay the way it is its nice to ride down the road at 65mph and only turn 1500rpms
Since you don't want to mess with gears then you are most definitely not going to want a stall even though it will lock up and cruise the same it will be a whole different world until it gets up to speed so the converter can lock. Look into 1.6 roller rockers, if you've already done the basics bolt ons and then a tune. The car will run much smoother in all aspects when you get one.
Old 12-07-2011, 10:21 AM
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ok well thanks for the help i want to go for stuff that will give me the bigist gains
Old 12-07-2011, 11:07 AM
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LT headers
A good CAI elbow
Nitrous
good converter
Good tires for street or strip
Old 12-08-2011, 12:55 AM
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LT headers
catback
cold air intake
elbow
Stall
3.73 gears
Tune

=12's

Also, make sure the CAI you order is 1993 specific. All other years of LT1's had a MAF sensor in the intake, whereas the '93s dont. Youll need and intake that is '93 speicifc.

You wont need any Throttle body work unless you plan on doing heads/cam, in which case a 52mm usually suffices. Stroker motors re usually the only motors that really need a 58mm.
Old 12-08-2011, 09:39 AM
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ok thanks now what about roller rockers like 1.6s my dad seams the think he can get say 20 hp with then
Old 12-08-2011, 09:47 AM
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Originally Posted by moehorsepower
Yes Airfoils are worthless unless someone gives you one, we tested one on the dyno, and saw 0 to 1 HP, I know that driving with a little more head wind may be different but to purchase one...Nope, Of course there is a guy that claimed he put one on right on the dyno and gained 30 RWHP
airfoils are not useless moe!!!! they make AWESOME paperweights for your desk

Originally Posted by 93z28de
ok thanks now what about roller rockers like 1.6s my dad seams the think he can get say 20 hp with then
doubtful...........keep in mind if you put rockers on it your going to have to change springs also......
Old 12-08-2011, 10:59 AM
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[QUOTE=quik95lt1;15707498]airfoils are not useless moe!!!! they make AWESOME paperweights for your desk


Dam You got me on that one, it did make my paperwork go faster
Old 12-11-2011, 05:43 PM
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hi will say 3gen tbi or tpi headers fit the 93 lt1 z28 ?
Old 12-11-2011, 05:51 PM
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Might want to convert to heated O2 sensors as well
Old 12-11-2011, 07:30 PM
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Originally Posted by 93z28de
hi will say 3gen tbi or tpi headers fit the 93 lt1 z28 ?
No, they will not fit. You need LT1/f-body specific headers.
Old 12-11-2011, 11:09 PM
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Originally Posted by 93z28de
ok my dad would like to know hp gans with some parts maybeyou can help
what kinda power #s will you see on a 93 camaro z28 4l60 and wht kinda 1/4 times its got stock a 2.73 rear gear car seams like a new on
1 52mm tb=?hp
2 headers=?hp
3 k&n cai=?hp
4 elbow for intake=?hp
5 chip=?hp
6 roller rockers 1.6=?hp
7 air foel=?hp
thanks for any help and is there an free mods ?
Did you check your glove box for the RPO codes? To the best of my knowledge, All 93 Z28s (manual or auto) had GU5 (3.23) gears (I've had 2 automatic 93's and both had GU5). Does yours say GU2 or GU5?


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