Looking for transmission build info
TECH Regular
Joined: Nov 2009
Posts: 446
Likes: 0
From: Farmington Hills, MI
It came out wrong, but that's what I meant. Dave said the stock chain is good until you start running mid 12s on slicks, and then it will break after a few passes. He said high 12s are fine, which is my target. He also said that if you can hit mid 12s on slicks, but keep your street tires on and run high 12s, you are still good. I got the impression, and it makes sense, that 1st gear + a hard launch is what snaps the chain, not the amount of power you run through the trans.
Teching In
Joined: Feb 2009
Posts: 41
Likes: 0
I have a question. Now that the 1" chain is moot, I wonder about the 7/8" vs. the 15/16" chains. Intense seems to prefer the 15/16" while TEP uses the 7/8" (which is what I went with). I poked around some websites and forums and the consensus is that neither is stronger than the other but the 15/16" will snap while the 7/8" will stretch (both bad in their own way).
TEP said the 7/8" is good for about 400-450 whp. Anyone know if that's true for the 15/16"? I'm just curious since others will be getting their transmission rebuilt I think it might be good to see if anyone has first hand experience.
TEP said the 7/8" is good for about 400-450 whp. Anyone know if that's true for the 15/16"? I'm just curious since others will be getting their transmission rebuilt I think it might be good to see if anyone has first hand experience.
TECH Regular
Joined: Nov 2009
Posts: 446
Likes: 0
From: Farmington Hills, MI
I have a question. Now that the 1" chain is moot, I wonder about the 7/8" vs. the 15/16" chains. Intense seems to prefer the 15/16" while TEP uses the 7/8" (which is what I went with). I poked around some websites and forums and the consensus is that neither is stronger than the other but the 15/16" will snap while the 7/8" will stretch (both bad in their own way).
TEP said the 7/8" is good for about 400-450 whp. Anyone know if that's true for the 15/16"? I'm just curious since others will be getting their transmission rebuilt I think it might be good to see if anyone has first hand experience.
TEP said the 7/8" is good for about 400-450 whp. Anyone know if that's true for the 15/16"? I'm just curious since others will be getting their transmission rebuilt I think it might be good to see if anyone has first hand experience.
Staging Lane
Joined: Nov 2009
Posts: 93
Likes: 0
I'd say run two chains and call it a day
. It is kinda of discouraging the motor has so much potential but we are limited with the trans. I hope that with the prices of the cars falling and them getting into the hands of those of use that want a little more out of them the market will start to cater to us. The big problem though is price. Being the first usually hits the pockets bad.
. It is kinda of discouraging the motor has so much potential but we are limited with the trans. I hope that with the prices of the cars falling and them getting into the hands of those of use that want a little more out of them the market will start to cater to us. The big problem though is price. Being the first usually hits the pockets bad. Teching In
Joined: Feb 2009
Posts: 41
Likes: 0
This car has a small TCM because the LS4 requires a dedicated ECM. Anybody with HP Tuners can change the tune, it will just take 2 credits. If you know someone who has HP Tuners in your area, you should be able to pay them for the credits you burn. I can send you my base calibration and the one that worked with the gear change when the time comes if you PM me. I hadn't done any other tuning at that point.
Teching In
Joined: Feb 2009
Posts: 41
Likes: 0
Oh yeah! I am one happy customer!
Dave at TEP got the PCM/TCM re-programmed. I guess I'm the first 08 to have this done, because there were a lot of differences in the PCM compared to the 07 and earlier models. Took awhile, but it was worth it.
The gear ration change is definitely worth it! Much harder launches. In fact, my poor RS-A's can't even keep any traction from a WOT launch at 2500+ RPM. Those tires are pathetic. Some tire upgrades may be in order this summer.
The shifts are so fast and crisp, I was very impressed. This is my first performance transmission, by the way. I can't sing the praises of TEP enough. He really went above and beyond to get me up and running.
Talk about making this car even better. I know I still get bashed on for FWD, but I just showed my friend what this baby can do. Ha ha!
Dave at TEP got the PCM/TCM re-programmed. I guess I'm the first 08 to have this done, because there were a lot of differences in the PCM compared to the 07 and earlier models. Took awhile, but it was worth it.
The gear ration change is definitely worth it! Much harder launches. In fact, my poor RS-A's can't even keep any traction from a WOT launch at 2500+ RPM. Those tires are pathetic. Some tire upgrades may be in order this summer.
The shifts are so fast and crisp, I was very impressed. This is my first performance transmission, by the way. I can't sing the praises of TEP enough. He really went above and beyond to get me up and running.
Talk about making this car even better. I know I still get bashed on for FWD, but I just showed my friend what this baby can do. Ha ha!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
