Had a run against a last gen firechicken
10-26-2009, 12:45 PM
#41
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Ok, there are a couple things wrong here.
He said he raced an "LT1" not an LT4 from a "60K" road, 60K = 37MPH. I agree, a bolton gxp should take a stock LT1 from a roll. However, DO NOT take them lightly. They actually make aftermarket parts for the LT1 and respond decent to them. For example, my buddies 95 camaro/ automatic with a pair of DR's and a CAI ran a 13.6@99mph.
FYI, all C5's (97-04) only came with an LS1 or LS6. The best performance deal with the C5 right now is the 02/03 ZO6. I've seen low mileage ones go for 18K in perfect condition.
Ill probably be getting an 02 corvette (base model/ Z51 package with an LS1, or Z06 with an LS6) and keeping my GXP as a daily. Also i met up with the owner again and she said its a LT4.
10-26-2009, 01:00 PM
#42
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Ok, there are a couple things wrong here.
He said he raced an "LT1" not an LT4 from a "60K" road, 60K = 37MPH. I agree, a bolton gxp should take a stock LT1 from a roll. However, DO NOT take them lightly. They actually make aftermarket parts for the LT1 and respond decent to them. For example, my buddies 95 camaro/ automatic with a pair of DR's and a CAI ran a 13.6@99mph.
FYI, all C5's (97-04) only came with an LS1 or LS6. The best performance deal with the C5 right now is the 02/03 ZO6. I've seen low mileage ones go for 18K in perfect condition.
He said he raced an "LT1" not an LT4 from a "60K" road, 60K = 37MPH. I agree, a bolton gxp should take a stock LT1 from a roll. However, DO NOT take them lightly. They actually make aftermarket parts for the LT1 and respond decent to them. For example, my buddies 95 camaro/ automatic with a pair of DR's and a CAI ran a 13.6@99mph.
FYI, all C5's (97-04) only came with an LS1 or LS6. The best performance deal with the C5 right now is the 02/03 ZO6. I've seen low mileage ones go for 18K in perfect condition.
10-28-2009, 01:47 AM
#47
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I think he meant how do i mistake a LT4 for a LS1????
Simply put i know jack **** about other L series motors or fbodys. Picked up a mag today at local book store that explains the history of the L series V8s very impressive. This is actually my first V8 EVER. Ive owned 4 bangers all my life.
Went from:
03 sunfire
stage 1 pistons/rods
75 shot nitrous
Hp Tune
Header/intake
Race exhaust
and the usual ricer body mods.
Best quarter mile 14.5 LAWLZ
In the End i spent 12 grand on that car sold it for 5 i just wanted it gone! lol
Stock GXP last year did 14.1
This year 13.9 with borrowed DR
Simply put i know jack **** about other L series motors or fbodys. Picked up a mag today at local book store that explains the history of the L series V8s very impressive. This is actually my first V8 EVER. Ive owned 4 bangers all my life.
Went from:
03 sunfire
stage 1 pistons/rods
75 shot nitrous
Hp Tune
Header/intake
Race exhaust
and the usual ricer body mods.
Best quarter mile 14.5 LAWLZ
In the End i spent 12 grand on that car sold it for 5 i just wanted it gone! lol
Stock GXP last year did 14.1
This year 13.9 with borrowed DR
10-28-2009, 09:48 PM
#52
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I don't know anything about the LT4... I just know that the LS1 is better than LT1 in most ways. I also know that there are people who prefer the LT1. To be honest, I'm relatively new to domestics, drove my RX since I was 18 til I was 21, and I'm 22, now. lol That explains my ricey GXP. 
10-29-2009, 03:15 PM
#54
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I don't know anything about the LT4... I just know that the LS1 is better than LT1 in most ways. I also know that there are people who prefer the LT1. To be honest, I'm relatively new to domestics, drove my RX since I was 18 til I was 21, and I'm 22, now. lol That explains my ricey GXP.
In reality, there's just no comparison between a stock LS motor and an LT1. The LS makes serious torque from idle to redline, while the LT1 was all done by 4500. It was an improvement over the old SBCs, but progress is progress.
10-29-2009, 03:28 PM
#55
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I wouldn't say it's all done by 4500rpm, it just makes less power than the LS1 above 4500rpm. I use to have an LT1 and it ran well all the way to 6K. Its just that for comparison, stock for stock, mod for mod, efficiency, rigidity, the LS1 is a better engine, that's all.
Last edited by JDMC5; 10-29-2009 at 07:20 PM.
10-30-2009, 01:37 PM
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Didn't the 1997 Firebird Firehawk (SLP edition car) have the LT4 engine? Same goes for the 1997 Camaro SS (SLP car) - right? I'm thinking GM had some leftover LT4's from the 1996 Corvettes and used them in those applications.
I must have a ringer LT4 Corvette - I had a run-in with my neighbor and his 1999 fixed roof Corvette a few years back. It was a pretty close race, but I ended up about a half-car length ahead of him. Granted, it was over a distance of less than a quarter mile...so that's not saying much. I'm guessing he may have caught up to me had we gone much further, as LS1's have a pretty nice top end. But don't underestimate the LT4's...
That being said, I also enjoy the power of our LS4 cars too!
I must have a ringer LT4 Corvette - I had a run-in with my neighbor and his 1999 fixed roof Corvette a few years back. It was a pretty close race, but I ended up about a half-car length ahead of him. Granted, it was over a distance of less than a quarter mile...so that's not saying much. I'm guessing he may have caught up to me had we gone much further, as LS1's have a pretty nice top end. But don't underestimate the LT4's...
That being said, I also enjoy the power of our LS4 cars too!
10-30-2009, 05:22 PM
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Between my fiancee and I, we have two LS1 TAs and one LS4 GXP. Her WS6 is an A4, 3.23 gear, bolt on only car and my TA is a M6, 3.42 geared heads and cam and full bolt on car. There is no question on what the pecking order is. LS4 cars have no business messing with LS1 Fbodies 99.9% of the time.
11-10-2009, 01:23 AM
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I have owned two fourth gen firebirds and I will be the first to admit that on the street anything can happen...
However my 00 Firebird TA automatic 2.73 geared firebird layed down a 13.4@104.9mph on my VERY first pass (didnt do anymore after that). All it had was a 3" catback, stock tune. The car is foolproof, the gears are so long that you cant even screw up the launch! I held the brake, rev to about 1800. light went green and punched it. car didnt even chirp the tires, pulled strong out of the hole though. After I did big cam, valvetrain, headers, 3" y pipe, slp intake, 3400 stall, 4.10 rearend -- it was much harder to be consistant. my first pass was a 14.2@110 followed up by a 12.8@113 (was having tuning issues, car was bouncing off the rev limiter between shifts)
Now I currently have a six speed firebird and I could see a grand prix gxp beating a six speed fbody on the street. My manual wheel hops like something fierce or spins the tires like crazy through half of second. The GXP i drove today feels like one of the better front wheel drive cars to launch... from a roll a healthy stock LS1 would walk a bolt on LS4 99% of the time IMHO. stock LS1 with autos make 290whp+ the best dyno ive seen around here is 250-260 -- coming from a car that does not weigh less.
However my 00 Firebird TA automatic 2.73 geared firebird layed down a 13.4@104.9mph on my VERY first pass (didnt do anymore after that). All it had was a 3" catback, stock tune. The car is foolproof, the gears are so long that you cant even screw up the launch! I held the brake, rev to about 1800. light went green and punched it. car didnt even chirp the tires, pulled strong out of the hole though. After I did big cam, valvetrain, headers, 3" y pipe, slp intake, 3400 stall, 4.10 rearend -- it was much harder to be consistant. my first pass was a 14.2@110 followed up by a 12.8@113 (was having tuning issues, car was bouncing off the rev limiter between shifts)
Now I currently have a six speed firebird and I could see a grand prix gxp beating a six speed fbody on the street. My manual wheel hops like something fierce or spins the tires like crazy through half of second. The GXP i drove today feels like one of the better front wheel drive cars to launch... from a roll a healthy stock LS1 would walk a bolt on LS4 99% of the time IMHO. stock LS1 with autos make 290whp+ the best dyno ive seen around here is 250-260 -- coming from a car that does not weigh less.
11-11-2009, 09:41 AM
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I have owned two fourth gen firebirds and I will be the first to admit that on the street anything can happen...
However my 00 Firebird TA automatic 2.73 geared firebird layed down a 13.4@104.9mph on my VERY first pass (didnt do anymore after that). All it had was a 3" catback, stock tune. The car is foolproof, the gears are so long that you cant even screw up the launch! I held the brake, rev to about 1800. light went green and punched it. car didnt even chirp the tires, pulled strong out of the hole though. After I did big cam, valvetrain, headers, 3" y pipe, slp intake, 3400 stall, 4.10 rearend -- it was much harder to be consistant. my first pass was a 14.2@110 followed up by a 12.8@113 (was having tuning issues, car was bouncing off the rev limiter between shifts)
Now I currently have a six speed firebird and I could see a grand prix gxp beating a six speed fbody on the street. My manual wheel hops like something fierce or spins the tires like crazy through half of second. The GXP i drove today feels like one of the better front wheel drive cars to launch... from a roll a healthy stock LS1 would walk a bolt on LS4 99% of the time IMHO. stock LS1 with autos make 290whp+ the best dyno ive seen around here is 250-260 -- coming from a car that does not weigh less.
However my 00 Firebird TA automatic 2.73 geared firebird layed down a 13.4@104.9mph on my VERY first pass (didnt do anymore after that). All it had was a 3" catback, stock tune. The car is foolproof, the gears are so long that you cant even screw up the launch! I held the brake, rev to about 1800. light went green and punched it. car didnt even chirp the tires, pulled strong out of the hole though. After I did big cam, valvetrain, headers, 3" y pipe, slp intake, 3400 stall, 4.10 rearend -- it was much harder to be consistant. my first pass was a 14.2@110 followed up by a 12.8@113 (was having tuning issues, car was bouncing off the rev limiter between shifts)
Now I currently have a six speed firebird and I could see a grand prix gxp beating a six speed fbody on the street. My manual wheel hops like something fierce or spins the tires like crazy through half of second. The GXP i drove today feels like one of the better front wheel drive cars to launch... from a roll a healthy stock LS1 would walk a bolt on LS4 99% of the time IMHO. stock LS1 with autos make 290whp+ the best dyno ive seen around here is 250-260 -- coming from a car that does not weigh less.
You're dead-on as far the LS4-LS1 comparison. LS4 makes less power in car that weighs the same as a 4th gen F-bod.