Quarter times?

Ok I have a 93 trans am with the stock internals LT1. I took it to the tracklast year and I couldnt get it to hook up for a btter time than 14.8. This winte I installed eiback drag launch suspencion, Elebrok headers,
MAC performance catback, Accell fuel pressure regulator, granetelli fuel pump, Hurst short throw, Richmond 4.10 and a crane ignition. The car now rums mid 12.s on pump gas. I am rebuilding the moptor this winter jsut wondering if anyone has similar mods and what heads they would sugest if I keep it naturally asperated? planning on running 11,s next year

Ohh forgot to mention I have 275-45-17 nitto's

Is this supposed to be a question??

And do you have proof of your mid 12?

Ok I have a 93 trans am with the stock internals LT1. I took it to the tracklast year and I couldnt get it to hook up for a btter time than 14.8. This winte I installed eiback drag launch suspencion, Elebrok headers,
MAC performance catback, Accell fuel pressure regulator, granetelli fuel pump, Hurst short throw, Richmond 4.10 and a crane ignition. The car now rums mid 12.s on pump gas. I am rebuilding the moptor this winter jsut wondering if anyone has similar mods and what heads they would sugest if I keep it naturally asperated? planning on running 11,s next year


mid 12s my @$$. high 13s maybe. You'll need more then that to get into the 12s. much less the 11s. if you want 12s and 11s, and want to keep drive-ability, go with a turbo or supercharger, have the fuel system to support it and a good tune.

Ok well i have proof i just ned to scan my time slips. I have a friend that has a 97 Z that runs 12 flat with similar mods with no internals. If you can ook up the power is there you just need to put it to the ground and if anyone doubts me come to new england dragway for super chevy I will be there and prove everyone wrong

easy killer, timeslips will be just fine

I ran a 14.5 @ 100.1 with my almost stock L98, and I'm happy with that :) 'Course that was after the PCMforless dyno-tune... :evillol:

I don't think so traction is one thing but you still need the power to get you there. What were your 60 ft times?

Stock LT1 can run high 13's at the right elevation with good conditions and a nice hook up. With his mods I don't think its out of the question to have a high 12's low 13's pass with some good traction.

Edit- although, on second thought. I was just looking and he has 2 fuel pressure mods and 2 exhaust mods yet I don't see anything done to the intake. Unless its left out but with those mods you would most likely choke the engine.

Yes I left out that I have a bbk twin 58 mill throttlebody and a jet airfoil, next year I will have ported LT4 intake. I was really trying to find out if anyone has rebuilt these motors with aftermarket heads and what they used and if they liked them. I am interestedin the trickflow aluminum ones but the combustion chamber is larger and I didnt wan to drop my compression Just curious if anyone could point me in a good direction of a nice set of heads.

Side note: MY short times were 1.73's

You have a lt4 intake but stock lt1 heads?

No I dont have a lt4 intake I want to buy one next year when i pull the motor. I want to know who make a good set of heads for my car

well, afr makes the best heads for our car but some ported LT1 aluminum heads will make very very impressive numbers. But if you go aftermarket , the lt4 intake won't match the ports, as they are all made for lt1 intake manifold ports. I would just have your heads fully ported and port match the intake manifold which has to come off anyway to get the heads out.

yea I know afr makes some very nice heads my cousin has them on a 72 chevelle SS with the 454 WOW what a car. I was looking into trickflow heads. The do pretty good on the flow bench and will help to make more horsepower when i supercharge it down the road and the only way to make good power is to port to match I know that I just wasnt shureif anyone had done the rebuild and experianced them.

Muhahaha lucky me.

I got my car last week and just today got to take it to the tracks to try it out. 94 Trans Am "False GT" its got the performance automatic but its serial is listed as a GT "Manual Only". It was absolutly stock i bought it from a lil old lady whos husban died and only put 16000 miles on she was absolutly clueless and sold it to me for 3 grand in mint condition except for 1 minor ding. Ive been working out some bugs before i took it to the track. First things first gutted the cat, reprogram the computer including fuel delivery and shift points, install a high flow borla, a k&n Air filter, bypass the throttle body, cut air hole in buttom, install o2 simluator, and a Lt4 knock sensor, complete fluids flush and change. Last of all the sunco 110 octane race fuel.

lol this thing is a complete beast now, and i only spent a total of 500 on the borla, o2 simulator, and lt4 knock module.

11.9 @ 128 Quater mile
Dyno 410 hp 376 tq on Sunco 93 before the new borla.

The LT1 has proved itself to be an all out race engine to me.

I'm going to go over to a friends and get my timeslip and my dyno test scanned asap.

opps forgot a detail i left my fathers 89 corvette and borrowed his tires. Stock rims with Goodyear Eagle F1 SuperCar tires P275/40ZR17. lol he dident mind cause i told him id let him have a run and do a few donuts when i was done. and his run was a 12.3 but as we all know the lt1 runs best cold and old folks are just slow.

With the dyno numbers you gave.....no way in hell you trapped 128.

With the dyno numbers you gave.....no way in hell you trapped 128. lol you put race fuel in a absolutly stock lt1 with an auto and do a quater mile pcm program using a good scantool and you can turn out 12.5's easy its not good on the engine seeing it hasent been rebuilt or suited for it but it wont harm it to much when you plan on doing a complete rebuild.

For the race fuel you take 2 octane boosters and drop it into 5 gallons worth of sunco 110, and you run it for a lil till it feels like your engines got a bad knock. you let the thing get ice cold by turning on the cooling fans hardwired and just lauch it down the track.

I will stand by the auto's till the end i think the computer knows the shift points better then any human and can do it alot fast look at lingenfelters 7-8 second cars there all auto.

I didn't question the 12.5.

I am saying NO WAY it trapped 128 MPH.

I concur. With your power. In no way can you trap that high.

taunt, your completely full of crap. i bet your running 13.9's. theres no way in hell you could pull an 11.9 with an almost stock lt1 engine. especially with an automatic. and 410 at the dyno? are you running a high boost application lol

Stock lt1 engine produces 275 crank horsepower dude. My 99 Cobra was making 280Whp and my best time with drag radials was 12.8@104 mph. Your just plain not making enough power to run any faster then 13's my friend so why lie. Heres a little info to help you not lie as bad next time, so that maybe you can fool a todler. my cousin has a 2000 firehawk(ls1) he has some bolt ons and he's having a hard time launching it, but his best trap speed is 105mph. and he's making almost 90whp more than you!

Further more, i can't believe you even tryed making up a lie so far off. i mean shit if you even knew what you were talking about you would had maybe said your running a 12.9. Even that would be hard to believe, but you just went balls out and assumed we know nothing about cars.

Well, I think the major source of information he gave that lead to us knowing he is not telling the truth is that he claims he is running O2 sims on a 94. Whats the problem with that?. Nothing but no 94 ever used sims after a exhaust change due to the fact that 94's don't have O2's after the cats only 95 cali LT1's and 96 -97 LT1's do. So there is no reason to use sims unless you like telling people you have them and like dragging wires. I hate calling people out on the net but there is no reason to make up shit on here. We are here to share our love of our cars in all forms may it be stock or modified. There is no reason to make up numbers or mods to gain our respect. Just be real and we will all respect that way more. So I hope I didn't disrespect you but your numbers and claimed mods just don't make any sense.

shoot, i have a 91 formula and it runs like shit, i bet i'm running 15.0 to be completely honest.. to me theres more pride in actually achieving something and then talking about it. so when i really do run 11's someone will believe me lol

For the race fuel you take 2 octane boosters and drop it into 5 gallons worth of sunco 110, and you run it for a lil till it feels like your engines got a bad knock. you let the thing get ice cold by turning on the cooling fans hardwired and just lauch it down the track.
That isn't going to help you much. If anything, it will hinder your times.

LS1/LT1....both were designed and programmed to run on premium pump gas. None of the race fuel.
Besides, that race fuel isn't helping any more than premium with stock compression.

yet taunt shed 2 seconds off his times lol BS

just for a gigle my stock 3.4 ran 16.80 @ 71 mph

jason what are you running on the juice?

lol you put race fuel in a absolutly stock lt1 with an auto and do a quater mile pcm program using a good scantool and you can turn out 12.5's easy its not good on the engine seeing it hasent been rebuilt or suited for it but it wont harm it to much when you plan on doing a complete rebuild.

First. I know I'm a NEWB to this board, and far be it from me to ever dis anyone's ride, but I'm officially calling BS on a 128 mph trap w/light mods and(or)410 rwhp?(those mods don't get 410 at the wheels in an LT1 :nono: ..... at least not in my years of experience.)... *EDIT* unless you're running a big stall/ big hit, or a tinned out gutted body weighing in at under 3000#'s. Btw.... what IS your race weight?

For the race fuel you take 2 octane boosters and drop it into 5 gallons worth of sunco 110, and you run it for a lil till it feels like your engines got a bad knock. you let the thing get ice cold by turning on the cooling fans hardwired and just lauch it down the track.

Second.... if anything... the octane #'s you're burning in a stock bottom/headed LT1(oxymoron)are hurting your rwhp/ET #'s. The goal is to run the highest octane value and be on the ragged EDGE of detonation in an NA application. That makes power. Over doing the octane value on any motor be it stock or max effort builds, will hurt performance. Flame fronts change w/different octanes. CR/cc volume/deck heights/piston surfaces/P2V ratio's ALL play a significant role in choosing an octane value. Add N20, and things change. Rule of thumb: lean makes power.... fat makes torque.

I will stand by the auto's till the end i think the computer knows the shift points better then any human and can do it alot fast look at lingenfelters 7-8 second cars there all auto.

While I will agree in that a high stalled/correctly rear geared auto will always be more consistant in the brackets, I will submit that a properly driven stick will hurt yer feelin's heads up. I consistantly cut .030-.040 lights and depending on track prep/weather will go high 1.4x, low 1.5x 60's.

Btw... love to see a "documented" dyno graph/time slip.....

jason what are you running on the juice?
havent had the money to get to the track

from my experience with my friends v6 camaro your probably running high 14's on a 75 shot. stock your car probably runs low 16's high 15's. at least from what i see at the track.

Hey Taunt.... where you at? It's your turn :lol2:

When I get back to the states, the TA is going to go from Vegas to PA/CT area. If any of these "so-called 12 second" cars (especially the "128mph" car :lol: ) want to tango...let me know.

I know a guy that lives near me...... :icon16:

I know a guy that lives near me...... :icon16:

Did you break him off yet? :biggrin:

He has a bigger turbo than you!!!!

He has a bigger turbo than you!!!!

What...are you sayin' your scared? Big turbo doesn't mean its fast... :rofl:

You would whoop my ass. :lol:

Mecham on the other hand.....