Finally got gears!!! Work great on the street
Finally got gears!!! Work great on the street
Well I finally got my 3.42 posi built and installed a Powertrax locker in aswell.......let me tell you that I have a completely different car now....and still don't have traction problems. In the past week I have raced several mudstains and I tear them up....took it to the track to find out what it run and I could'nt belive it. Run a 13.56, 13.59, 13.42................Best install I ever did!
Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Glad to hear you're happy with the gears you chose. Just wondering at what rpms you cross the line at? I'm sure not too much past 4500 rpms... Cause I remember you debating on :42 or :73s and like many had said 3:73s would have been too much for TPI.
I just wish someone would have pointed me in the right direction.
I just wish someone would have pointed me in the right direction.
Member
Joined: Apr 2001
Posts: 427
Likes: 1
From: Edmond, OK, USA
Car: 87 IROC
Engine: 305 TPI going to LT1
Transmission: 5spd
what was your mph? are you still running the 305 tbi or did you switch to a 350? have you had any head work or anything else not listed in your sig? i'm just curious because those are great times for a 305 tbi. i'm hoping to be down there when i get my gears. if i can fix my traction problem. i should be in the high 13's right now but i haven't been able to make it out to the track yet this year.
Andrew
Andrew
yes still running 305 tbi. Its a target master create engine......so as far as what has been done to the engine I have no clue...as fas as MPH ........fun anywhere from 92lowest and 101highest.....I can't belive it either......never thought my car would run that good......working on geting my time slips on disk so I can post them...
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Member
Joined: Apr 2001
Posts: 427
Likes: 1
From: Edmond, OK, USA
Car: 87 IROC
Engine: 305 TPI going to LT1
Transmission: 5spd
so i'm guessing you don't have the crappy heads. if not then that sounds about right. if you could get more consistant you might be able to pull a little more outta it 
Andrew

Andrew
Senior Member
Joined: Sep 2001
Posts: 747
Likes: 0
From: USA
Car: 1981 Oldsmobile Cutlass Supreme Brougham 2dr Coupe
Engine: 403 Olds v8, bored .030 over
Transmission: 350 T.H. 3A, shift kit
That's why I'm getting 3.73 on the Cutlass...
My gears on the Cutlass most likely are worse than 2.73. And I figured 3.73, since that's what came on the performance cutlasses, that would be easy to find. Does anyone know how much the gears cost?
Senior Member
Joined: Sep 2000
Posts: 840
Likes: 0
From: Crystal Lake Il
Car: '98 Z
Engine: LS1/6
Transmission: 4l60E
There has to be something done to that car or the engine that you dont know about.... maybe you got a 350 crate engine or the clocks were off at the track. I wish I could believe that an LO3 with no headers/cam/head work can run 101 MPH without weighing 2800lbs. I think Camaroracer1992 had to use a 125 shot on his LO3 to run 102 MPH and that was with a few other mods including gears. NJspeeder is one of the fastest 305 TBI guys on the board and he isnt even running those numbers with edelbrock heads/headers and slicks.
No flame intended.....just saying that something here has not been accounted for
No flame intended.....just saying that something here has not been accounted for
Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by vortecfcar
There has to be something done to that car or the engine that you dont know about.... maybe you got a 350 crate engine or the clocks were off at the track. I wish I could believe that an LO3 with no headers/cam/head work can run 101 MPH without weighing 2800lbs.
No flame intended.....just saying that something here has not been accounted for
There has to be something done to that car or the engine that you dont know about.... maybe you got a 350 crate engine or the clocks were off at the track. I wish I could believe that an LO3 with no headers/cam/head work can run 101 MPH without weighing 2800lbs.
No flame intended.....just saying that something here has not been accounted for
Ok I will clear things up for you guys.
1. I have shorty headers just didn't put in sig. Because there very cheep and I didn't want cheep parts in sig. Name of headers.........Headman paid 89.00 for them.
2. Cam wise, to my knowledge the cam is stock, BUT, I have had several different people say that its not stock because of what I shift at........Maybe Target put a bigger cam in?
3. I have spent several hours among hours to get my car lighter!
Including cutting out ALL of the crash brace work from the front. Along with bracing under the dash. Removal of heater/Ac box......Aluminium water pump No name that I can find it was given to me..........Inside of the doors I have just enough metal to keep the widow track and door handle in place......to make it short if the car did not have to have the bracing it was cut out or Parts of the car was cut.............over a period of 1 1/2 years we managed to take alomst 400 pounds off the car I will be more than glad to make a long list if you guys would like.
4. There is noway the engine is a 350...........It is plainly stamped on the drivers side in the back 5.0......So this makes it a 305 correct. But there again it could be board something major....I don't know.
5. Timer off at Red River Raceway?????? I doubt it they have the big boys out there.....
So is there anything else I might beable to help clearify this post?
BTW.......I am in the process of building my 377.....and when I get it built I will be more than happy to tell you guys what was in the 305......without a problem
BTW #2 NO OFFENCE TO ANYONE....................
1. I have shorty headers just didn't put in sig. Because there very cheep and I didn't want cheep parts in sig. Name of headers.........Headman paid 89.00 for them.
2. Cam wise, to my knowledge the cam is stock, BUT, I have had several different people say that its not stock because of what I shift at........Maybe Target put a bigger cam in?
3. I have spent several hours among hours to get my car lighter!
Including cutting out ALL of the crash brace work from the front. Along with bracing under the dash. Removal of heater/Ac box......Aluminium water pump No name that I can find it was given to me..........Inside of the doors I have just enough metal to keep the widow track and door handle in place......to make it short if the car did not have to have the bracing it was cut out or Parts of the car was cut.............over a period of 1 1/2 years we managed to take alomst 400 pounds off the car I will be more than glad to make a long list if you guys would like.
4. There is noway the engine is a 350...........It is plainly stamped on the drivers side in the back 5.0......So this makes it a 305 correct. But there again it could be board something major....I don't know.
5. Timer off at Red River Raceway?????? I doubt it they have the big boys out there.....
So is there anything else I might beable to help clearify this post?
BTW.......I am in the process of building my 377.....and when I get it built I will be more than happy to tell you guys what was in the 305......without a problem
BTW #2 NO OFFENCE TO ANYONE....................
Last edited by idrag2; Apr 10, 2002 at 10:42 PM.
Member
Joined: Apr 2001
Posts: 427
Likes: 1
From: Edmond, OK, USA
Car: 87 IROC
Engine: 305 TPI going to LT1
Transmission: 5spd
Originally posted by idrag2
Smokin87iroc, are you going to come to Red River Raceway? By the way you worded you post you might be comming this way? If so we will have to go run em'
Smokin87iroc, are you going to come to Red River Raceway? By the way you worded you post you might be comming this way? If so we will have to go run em'
i meand down in the mid 13's when i get my gears but if i get some money together and find some free time this summer i may have to come down and have a friendly race

but yeah try and find out what heads you have if you can. maybe get the number off em next time you have the valve covers off.
keep the good times coming though

Andrew
Give me alittle time to make a list and I will post it..............the only bad thing about cuttin the car is if I get in a wreck the car will be like a big ball of foil!!!! But you play you pay...right?
Originally posted by Mark A Shields
Glad to hear you're happy with the gears you chose. Just wondering at what rpms you cross the line at? I'm sure not too much past 4500 rpms... Cause I remember you debating on :42 or :73s and like many had said 3:73s would have been too much for TPI.
I just wish someone would have pointed me in the right direction.
Glad to hear you're happy with the gears you chose. Just wondering at what rpms you cross the line at? I'm sure not too much past 4500 rpms... Cause I remember you debating on :42 or :73s and like many had said 3:73s would have been too much for TPI.
I just wish someone would have pointed me in the right direction.
Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by Jasper89ROC
That is wierd, I put a 3.70 rearend in my 89 IROC and i do not think it is too big at all. I guess Ill have to see at the track.
That is wierd, I put a 3.70 rearend in my 89 IROC and i do not think it is too big at all. I guess Ill have to see at the track.
Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by Jasper89ROC
I am making power past 4800 rpm tho, I have the SLP intake runners and it pulls much higher than the stock runners.
I am making power past 4800 rpm tho, I have the SLP intake runners and it pulls much higher than the stock runners.
Originally posted by BadBowtie88
You gained that much w/only gears?! I wish I could have got some gears for my car before it died...which was only two days ago
I know I would have been at least 13.70's with gears. I just know it would have.
You gained that much w/only gears?! I wish I could have got some gears for my car before it died...which was only two days ago
I know I would have been at least 13.70's with gears. I just know it would have. Thread
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