L03 > 2 Tiburons
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Joined: Dec 2003
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From: Missouri
Car: 1989 IROC
Engine: LB9
Transmission: T5
Axle/Gears: 3.42 Posi
L03 > 2 Tiburons
Gotta a few kills in my RS last week, both close.
First one was just stoplight to stoplight against a V6 Tiburon with an auto or someone afraid to stall. Didn't stall my 700, just punched it. Got by him, but barely. If he would have had a 5 speed I am quite certain I would have lost. These things are surprisingly quick. My 255 lb ft. versus his 181 saved the day!
Second one was a friend with a 4 cyl Tiburon 5 speed, who refused to believe I took a 6 cyl. We ran a full quarter out on a rural highway twice, and it was way closer than I thought it would be, but with a 5 speed, 2900 lbs, FWD, and 138 hp, I shouldn't be surprised.
His is a 2006, stock except for Goodyear directional tires.
The first raced I stalled up the 700 (stock stall converter) and didn't hook at all, and lost by about a half car. I was fairly shocked and asked for a second shot, to try a stall-less launch.
Second race I didn't stall it at all, just punched it, and hooked decently and won by about the same margin that I lost (half car). He still got me off the line, and I was almost to 3rd gear before I had reeled him in. But the first race he absolutely destroyed me off the line.
He was stalling the hell out of his car, and that thing hooked both times pretty well, as well as powershifting.
These cars are quicker than I thought! If I had a posi and good tires, I would have put 1 or 2 cars on him pretty easily, and if he had an auto he would lose badly. An RS with the 5 speed and 3.08 posi should be fine.
Any TPI or even L69 car shouldn't have a problem with one of these things, but for any fellow 700-R4/L03ers, don't think you can walk one so easily. And if you've got a 60 degree V6 or Iron Duke, don't even think about it, lol.
First one was just stoplight to stoplight against a V6 Tiburon with an auto or someone afraid to stall. Didn't stall my 700, just punched it. Got by him, but barely. If he would have had a 5 speed I am quite certain I would have lost. These things are surprisingly quick. My 255 lb ft. versus his 181 saved the day!

Second one was a friend with a 4 cyl Tiburon 5 speed, who refused to believe I took a 6 cyl. We ran a full quarter out on a rural highway twice, and it was way closer than I thought it would be, but with a 5 speed, 2900 lbs, FWD, and 138 hp, I shouldn't be surprised.
His is a 2006, stock except for Goodyear directional tires.
The first raced I stalled up the 700 (stock stall converter) and didn't hook at all, and lost by about a half car. I was fairly shocked and asked for a second shot, to try a stall-less launch.
Second race I didn't stall it at all, just punched it, and hooked decently and won by about the same margin that I lost (half car). He still got me off the line, and I was almost to 3rd gear before I had reeled him in. But the first race he absolutely destroyed me off the line.
He was stalling the hell out of his car, and that thing hooked both times pretty well, as well as powershifting.
These cars are quicker than I thought! If I had a posi and good tires, I would have put 1 or 2 cars on him pretty easily, and if he had an auto he would lose badly. An RS with the 5 speed and 3.08 posi should be fine.
Any TPI or even L69 car shouldn't have a problem with one of these things, but for any fellow 700-R4/L03ers, don't think you can walk one so easily. And if you've got a 60 degree V6 or Iron Duke, don't even think about it, lol.
Joined: Apr 2004
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From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
a posi would absolutlely help with your launch,3:42's(I'm alittle biased).What have you done to the car so far?are you bone stock?
Thread Starter
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Joined: Dec 2003
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From: Missouri
Car: 1989 IROC
Engine: LB9
Transmission: T5
Axle/Gears: 3.42 Posi
Originally posted by robertfrank
a posi would absolutlely help with your launch,3:42's(I'm alittle biased).What have you done to the car so far?are you bone stock?
a posi would absolutlely help with your launch,3:42's(I'm alittle biased).What have you done to the car so far?are you bone stock?
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From: Laguna Beach, Ca
Car: Gutted 92' RS TRACK ONLY / '86 Mustang gt 'vert / 1982 Yamiaha xs400 Cafe Racer
Engine: L03; TBI is IT! / 5.0HO (306) SFI / 400cc air cooled twin
Transmission: 700-r4 / WCT5/ 6-speed close ratio
Put in a 180* thermo. 160* is too cold.
-->1992 Camaro RS: 3.5" drop, ultimate tbi, vafpr, open element, fi spacer, 3/8" tbi spacer, msd 6a, blaster coil, accell 8mm wires, borg warner cap/rotor, ac/emmissions delete, b&m sport shifter, battery relocated to the trunk, b&m tranny cooler, and fully gutted.
--> 1986 Mustang 5.0/WC-t5 Engine rebuild in progress. 1986 block, 0.030" over, crank 0.010" under, Fully blueprinted. (All machine work by me!) K&N, Ford racing MAF conversion, bbk 70mm TB, MSD6A/TFI coil, TrickFlow Street Heat, E7te heads, Forged TRW pistons, Speed-pro rings, U/D pullies, C.E. Torque link, BBK shortys, no smog/AC, Sprial flows dumped, LM subframes, Laurel Mountain drag springs w/airbag, LW 90/10's, LW 50/50's, Traction bars, Battle boxes, Pro3i UCA's, LM 4pt. roll cage, BFG DR's, light as **** and alot more......:evil:
Next up: Nitrous......
- ->1992 Suburban, 6" fabtech lift, 35" mudboggers, tbi spacers, flowmasters. Alot of watts.....
-->1992 Camaro RS: 3.5" drop, ultimate tbi, vafpr, open element, fi spacer, 3/8" tbi spacer, msd 6a, blaster coil, accell 8mm wires, borg warner cap/rotor, ac/emmissions delete, b&m sport shifter, battery relocated to the trunk, b&m tranny cooler, and fully gutted.
--> 1986 Mustang 5.0/WC-t5 Engine rebuild in progress. 1986 block, 0.030" over, crank 0.010" under, Fully blueprinted. (All machine work by me!) K&N, Ford racing MAF conversion, bbk 70mm TB, MSD6A/TFI coil, TrickFlow Street Heat, E7te heads, Forged TRW pistons, Speed-pro rings, U/D pullies, C.E. Torque link, BBK shortys, no smog/AC, Sprial flows dumped, LM subframes, Laurel Mountain drag springs w/airbag, LW 90/10's, LW 50/50's, Traction bars, Battle boxes, Pro3i UCA's, LM 4pt. roll cage, BFG DR's, light as **** and alot more......:evil:
Next up: Nitrous......
- ->1992 Suburban, 6" fabtech lift, 35" mudboggers, tbi spacers, flowmasters. Alot of watts.....
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From: Missouri
Car: 1989 IROC
Engine: LB9
Transmission: T5
Axle/Gears: 3.42 Posi
Originally posted by 89IrocZ350TPI
Thats what I was thinking
Thats what I was thinking
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
Originally posted by 80smetalfan
They both challenged, and I judged them as being fair game for the measly RS. Nothing wrong with a little fun.
They both challenged, and I judged them as being fair game for the measly RS. Nothing wrong with a little fun.
hehe. might as well race what's in your league :P. there's nothing wrong with having a little fun. after all what's a thirdgen for?

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From: evansville/summitville IN
Car: currently a 99 sable, and an infamous 98 4.3L 5sp S10
Engine: 220+4.3L, and a 200hp 3.0L
Transmission: 5sp nv3500, and an axn4 AT
So, lo3 is the 305 tbi? If so, my buddy did something to his and is almost dead even with a tpi 305.....lol. My s10 currently pwns them both though.
Andrew
Andrew
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Originally posted by mystikkal_69
hehe. might as well race what's in your league :P. there's nothing wrong with having a little fun. after all what's a thirdgen for?
hehe. might as well race what's in your league :P. there's nothing wrong with having a little fun. after all what's a thirdgen for?

Thread Starter
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Joined: Dec 2003
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From: Missouri
Car: 1989 IROC
Engine: LB9
Transmission: T5
Axle/Gears: 3.42 Posi
Originally posted by 2-toneTA
So, lo3 is the 305 tbi? If so, my buddy did something to his and is almost dead even with a tpi 305.....lol. My s10 currently pwns them both though.
Andrew
So, lo3 is the 305 tbi? If so, my buddy did something to his and is almost dead even with a tpi 305.....lol. My s10 currently pwns them both though.
Andrew
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From: evansville/summitville IN
Car: currently a 99 sable, and an infamous 98 4.3L 5sp S10
Engine: 220+4.3L, and a 200hp 3.0L
Transmission: 5sp nv3500, and an axn4 AT
Originally posted by 80smetalfan
Well if this TPI 305 is an auto and is a little out of tune, this is entirely possible. My RS hit 15.7s, which is within the range of a poorly maintained auto 305 TPI. The autos only make 195 hp, which is only 25 more than the 305 TBI.
Well if this TPI 305 is an auto and is a little out of tune, this is entirely possible. My RS hit 15.7s, which is within the range of a poorly maintained auto 305 TPI. The autos only make 195 hp, which is only 25 more than the 305 TBI.
edit: sorry for hijacking the post.....there really isn't a point to make a new thread
Andrew
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Joined: Dec 2003
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From: Missouri
Car: 1989 IROC
Engine: LB9
Transmission: T5
Axle/Gears: 3.42 Posi
Originally posted by 2-toneTA
if it matters, it is a 92 RS, vs a 87 Iroc-z. My friend's rs has a 5.7L throttle body, and exhaust. The iroc only has exhaust.
edit: sorry for hijacking the post.....there really isn't a point to make a new thread
Andrew
if it matters, it is a 92 RS, vs a 87 Iroc-z. My friend's rs has a 5.7L throttle body, and exhaust. The iroc only has exhaust.
edit: sorry for hijacking the post.....there really isn't a point to make a new thread
Andrew
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From: evansville/summitville IN
Car: currently a 99 sable, and an infamous 98 4.3L 5sp S10
Engine: 220+4.3L, and a 200hp 3.0L
Transmission: 5sp nv3500, and an axn4 AT
crap, my friend's rs is a 305 with the throttle body and injectors off a 5.7L truck. Thought I'd clarify that....I hate overwrite. But this kid always thinks his 87 iroc is fast.....I stuck with him, and passed him with a 98 s10.......lol No idea on track times for the iroc or the rs, but my s10 usually beats them both by 2-3 car lengths n/a. I usually run mid to low 15's n/a, and did run mid 13's on spray(college bills cought up with me, so I had to sell...) I wish I would have been able to keep it for the TA.
Andrew
Andrew
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Originally posted by 90CamaroTBI
Not always bud.
Not always bud.
There not bad if you get that peanut lg4 cam outta there. Then get a cat-back with free flowing headers, then go with a better intake manifold. Modify the tbi, and some free mods and you will be moving.
My old car was an lg4...then I gave it some steroids and it became an L69
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From: ALASKA
Car: 84 trans am
Engine: 305HO
Transmission: T-5 borg warner
i wouldnt laugh at tiburons...there are a few fast ones out there. i have one and i am thinking of getting a turbo. ngm is making a kit to put out 390hp on pump gas so tibbys arent to laughed at...unless stock of course
Apparently you are the one with no idea.
Here are some pictures of the burn outs clown:


Now what was it you were saying?
P.S. Man do I get sick of the retard kids on here.
It also produced the most impressive burnout ever put rubber on tarmac. Michael McIntyre's twin-engine Hyundai put 627 hp to the ground in our dyno competition. It did the same thing here--in a completely different way. McIntyre's car uses two independently controlled automatic transmissions, giving him the ability to operate them in drive and reverse at the same time--which is exactly what he did. The resulting automotive tug of war was enough to send any chassis engineer into convulsions.
With the front tranny in reverse and the rear in drive, McIntyre laid into the go pedal and didn't lift until he'd made enough tire smoke to put California's Air Resources Board on high alert. The car began to slowly rotate on its axis as all four drive wheels fought each other for dynamic control. In about 10 seconds, the entire car was engulfed. When it was over, the ground was covered with smoldering piles of rubber and the most confused burnout marks ever made. He won. No one else even came close.
With the front tranny in reverse and the rear in drive, McIntyre laid into the go pedal and didn't lift until he'd made enough tire smoke to put California's Air Resources Board on high alert. The car began to slowly rotate on its axis as all four drive wheels fought each other for dynamic control. In about 10 seconds, the entire car was engulfed. When it was over, the ground was covered with smoldering piles of rubber and the most confused burnout marks ever made. He won. No one else even came close.


Now what was it you were saying?
P.S. Man do I get sick of the retard kids on here.
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From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Originally posted by stu
Apparently you are the one with no idea.
Here are some pictures of the burn outs clown:


Now what was it you were saying?
P.S. Man do I get sick of the retard kids on here.
Apparently you are the one with no idea.
Here are some pictures of the burn outs clown:


Now what was it you were saying?
P.S. Man do I get sick of the retard kids on here.
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From: Glendale, AZ
Car: 4 Mopars total
Engine: Pentastar power
Transmission: T/F and New Process
Axle/Gears: Three 8 3/4's & one 9 1/4
Originally posted by 90CamaroTBI
Not always bud.
Not always bud.
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From: Mays Landing NJ
Car: 2018 Camaro SS
Engine: LT1 w/Paxton 1500SL
Originally posted by 84L69TA
ALWAYS! Ive never heard of an L03 running any better than 14's. Thats a dog to me.
ALWAYS! Ive never heard of an L03 running any better than 14's. Thats a dog to me.
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Ya LO3 cars start out with a poor building block. Peanut cam, restrictive heads, stuffed up exhaust/Intake. 170 hp stock for a 3400 lb car is only good for 15.9-16.2. So it takes alot to drop two seconds.
Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
The reason why you don't see fast Lo3's is because people for years have thrown miss matched parts combined with hearsay theories as to why TBI sucks. They don't do the chip work and supply the motor with the necessary fuel. They get fed up and switch to carb. There are more and more people who are taking the time to learn the system and are having great results. I too will be in that category (TBI head project
.) Dewey316 ran a 14.5 with headers, 3.42 gears, untouched heads, and tuning. Thats it. He then added a cam and re-tuned to run a 13.9. He only did that because he learned how to do the chip work. Fast355 has a 312 TBI in a 5700lb van that runs 15.5's!!!! In a lighter f-body that would be low to mid 13's with ease. Both examples had the so called "worthless" TBI heads. TBI is not as bad as people claim. LO3's were slow beacuse of their crappy cam, exhaust, and tune. Not because it was TBI with swirl port heads.
.) Dewey316 ran a 14.5 with headers, 3.42 gears, untouched heads, and tuning. Thats it. He then added a cam and re-tuned to run a 13.9. He only did that because he learned how to do the chip work. Fast355 has a 312 TBI in a 5700lb van that runs 15.5's!!!! In a lighter f-body that would be low to mid 13's with ease. Both examples had the so called "worthless" TBI heads. TBI is not as bad as people claim. LO3's were slow beacuse of their crappy cam, exhaust, and tune. Not because it was TBI with swirl port heads. Supreme Member
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Car: ws6
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btw I was not trying to put down LO3 cars. Yes you can build up the engines and make them fast.
I have a question would it be cheaper to just go out and get a 350?. Or would it be cheaper to build up an L03? If you were shooting for lets say low 13's?
I have a question would it be cheaper to just go out and get a 350?. Or would it be cheaper to build up an L03? If you were shooting for lets say low 13's?
Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 89IrocZ350TPI
I have a question would it be cheaper to just go out and get a 350?. Or would it be cheaper to build up an L03? If you were shooting for lets say low 13's?
I have a question would it be cheaper to just go out and get a 350?. Or would it be cheaper to build up an L03? If you were shooting for lets say low 13's?
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Car: ws6
Engine: ls1
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Ya, thats what i was thinking. I guess you can have a fast l03 street car with the right combo's. For the strip you may want to upgrade to something with more potential.
Joined: Feb 2001
Posts: 13,775
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 89IrocZ350TPI
I guess you can have a fast l03 street car with the right combo's.
I guess you can have a fast l03 street car with the right combo's.
. I hope to have one of the faster LO3 cars come this summer. Hint hint. Supreme Member
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Originally posted by ShiftyCapone
Yes you can
. I hope to have one of the faster LO3 cars come this summer. Hint hint.
Yes you can
. I hope to have one of the faster LO3 cars come this summer. Hint hint. Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 89IrocZ350TPI
Get into the 13's and that will be the fastest one ive ever seen. I did see an lg4 run in the high 13's before. Pretty much the same thing though.
Get into the 13's and that will be the fastest one ive ever seen. I did see an lg4 run in the high 13's before. Pretty much the same thing though.
. Dewey hit 13.9 with simple mods. Thanks to guys like him, kdrolt and fast355 I can take their lead and run with it
I won't go into much detail though. You guys will have to wait. Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 89IrocZ350TPI
So are we talking all motor or a little bit of spray? 12's or better on an l03 would be insane!
So are we talking all motor or a little bit of spray? 12's or better on an l03 would be insane!
He had a small cam and unported heads. You can see where I am going with this.
Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 89IrocZ350TPI
Your going to have an all out L03 pretty much.
Your going to have an all out L03 pretty much.
Lots of fuel
Tuning
HUGE cam
ported heads (with lots of work)
= fast
(This sounds like every other SBC build doesn't it...I guess the LO3 was no different)
I want to end all hearsay with the LO3 by summers end.
Originally posted by ShiftyCapone
I want to end all hearsay with the LO3 by summers end.
I want to end all hearsay with the LO3 by summers end.
Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by stu
Good luck, people have been running 10's in street driven imports for years now, and the scene still sucks.
Good luck, people have been running 10's in street driven imports for years now, and the scene still sucks.
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From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
of course its possible to do it with an L03, but for all the effort put into it you could be running faster with a different motor.
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Car: ws6
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I think he is mostly trying to prove a point though. Everyone should agree that a stock l03 is slow,but it has potential like the lg4 to be made fast. Their is a good website out there about the l03 engine and how to build it. I think its called "modifying the L03" or something like that. Pretty good read.
Joined: Feb 2001
Posts: 13,775
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by urbanhunter44
of course its possible to do it with an L03, but for all the effort put into it you could be running faster with a different motor.
of course its possible to do it with an L03, but for all the effort put into it you could be running faster with a different motor.





