D-I-Y shift kit observations
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 87
Likes: 0
From: Orange County, CA
D-I-Y shift kit observations Yesterday I installed a D-I-Y shift kit and I wanted to post my observations.
I used 1" and 3/4" shims from the hardware store and replaced the stock 1-2 accumulator spring with a 2-3 spring (P/N 23203977) which is a much thicker coil. The car will now lightly bark the tires on the 1-2 at WOT and the 2-3 is mmm-okay; however, if & when I take the pan down again I will shim up the 2-3 accumulator spring 1/4" to see if I can get a little more pop on the 2-3. At light throttle the 1-2 is enough to let you know "hey, I'm happening now" but not outrageous.
Frankly, I think anyone looking to go the shift kit route will find the 1" & 3/4" shims to be just fine. Anyway, I hope this helps someone!
I used 1" and 3/4" shims from the hardware store and replaced the stock 1-2 accumulator spring with a 2-3 spring (P/N 23203977) which is a much thicker coil. The car will now lightly bark the tires on the 1-2 at WOT and the 2-3 is mmm-okay; however, if & when I take the pan down again I will shim up the 2-3 accumulator spring 1/4" to see if I can get a little more pop on the 2-3. At light throttle the 1-2 is enough to let you know "hey, I'm happening now" but not outrageous.
Frankly, I think anyone looking to go the shift kit route will find the 1" & 3/4" shims to be just fine. Anyway, I hope this helps someone!
12 Second Club
Joined: Jul 2006
Posts: 372
Likes: 0
From: Goldsboro, NC
I had the same thing done on my GTP Comp G when I had it. DIY shift kit and line pressure increased. Loved it, until on the 1-2 shift I snapped the input shaft that grenaded my TC which in turn sent pieces into the rest of the tranny. $3200 later I had a race built tranny and was good to go.
Moral of the story is I wouldn't recommend both shims/spring DIY kit "and" increased line pressure to long on the 4t65e-HD, because we all know it's not HD.
Tate
Moral of the story is I wouldn't recommend both shims/spring DIY kit "and" increased line pressure to long on the 4t65e-HD, because we all know it's not HD.
Tate
