, people on here have been rocking the junkyard built ones including myself 
View Poll Results: Which transmission??? Post why
Voters: 13. You may not vote on this poll
Help me decide on a transmission
Help me decide on a transmission Hey guys. Long story short- stock bottom, heads/cam car LS1 based. T56 car originally, want to switch to an auto. I haven't been able to get a clear answer on which transmission I should go with an why. If you vote, drop a message saying why you chose that specific transmission for my setup.
Goal is eventually going to be a "9 second street car", LS3 based, FI or N20. I have a company truck I drive during the week. The T/A is my primary car otherwise and see's city and highway driving on the weekends. Car is full weight now, and will probably never be too much lighter considering a 6pt cage, etc will be added to offset any weight reduction.
Any questions ask. Choices are TH350, TH400, Powerglide, 4L60e, 4L80e. My car is a 1998 car, so if I went with 4L80e, I would have to swap to a 99+ PCM and what not. Still researching what needs to be done with that.
Thanks for looking,
Andy
Goal is eventually going to be a "9 second street car", LS3 based, FI or N20. I have a company truck I drive during the week. The T/A is my primary car otherwise and see's city and highway driving on the weekends. Car is full weight now, and will probably never be too much lighter considering a 6pt cage, etc will be added to offset any weight reduction.
Any questions ask. Choices are TH350, TH400, Powerglide, 4L60e, 4L80e. My car is a 1998 car, so if I went with 4L80e, I would have to swap to a 99+ PCM and what not. Still researching what needs to be done with that.
Thanks for looking,
Andy
well if it will be driven on the street and highway then the 4L80E is clearly your best choice if you want to keep an overdrive and still have a good gear in the rearend and still run the times that you want.
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"All Motor 9 Second club member"
iTrader: (60)
Joined: Nov 2001
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From: On the Bumper!
Yeah I agree. The PCM harness swap will be a pain and not worth it IMO. I'd go with a 4L80E with a MVB and you'll be covered. We had great luck with our built 4L60E, but we were already set up for it with the 01 PCM. Since you have to do a conversion anyway, you may as well cover yourself with a 4L80E and manually shift it. If you are going to see freeway driving, an OD is a must.
Circle D or FLT can build you one that you'll never have to worry about.
G/L
Circle D or FLT can build you one that you'll never have to worry about.
G/L
"All Motor 9 Second club member"
iTrader: (60)
Joined: Nov 2001
Posts: 3,235
Likes: 2
From: On the Bumper!
The 4L series converters are Circle Ds specialty and I believe they offer one free restall to LS1tech members. That's a no-brainer especially since the cars final HP hasn't been confirmed yet. It seems we always want a little more stall.lol.
G/L and keep us updated on the build.
G/L and keep us updated on the build.
Last edited by TXCAMSS; Sep 27, 2009 at 08:56 PM. Reason: typo