Thread: Modded Spacer plate

So I was looking around. I couldn't find too much info on a modded spacer plate. Is this upgrade worth its while? What does it do to improve the trans?
Thanks

You talking about this?
http://www.sonnax.com/system/instruc...C-4T65E-IN.pdf

Googled, 4t65e spacer sonnax

I thought the spacer plate went between the channel plate and VB?

Originally Posted by Nighthwk12

I thought the spacer plate went between the channel plate and VB?

It does. Depending on the year it's either a thin aluminum plate with a gasket on each side or a composite molded plate with no gaskets (one time use type)

Here is another link from Sonnax that I have found to be a good visual aid. Scroll to page 3.
http://www.sonnax.com/system/instruc...65E-LB1-IN.pdf

Yeah..that's hte one I was trying to give you

Thank you kindly. So from what I've read weather or not you need/how you mod a spacer plate depends on the power you are putting down.

Yep, prett much. It's a combination of a lot of factors...HP level, type of use (street/track), shift feel, and tune in the PCM. All of those factors will determine how much you need to open up the appropriate feed holes in the spacer plate.

The spacer plate (also called separator plate, or restrictor plate) has an influence as to how a transmission shifts. Larger feed holes will fill the accumulators faster, and allow a quicker shift, and firmer to an extent.

Its only part of the story though, feed hole sizes, line pressure and accumulator setup all work together to affect shift feel.

Shimming the accumulator will also speed up the shift, but more-so comes with making it shift harder. Different upper and lower accumulator springs will change the starting and finishing pressure also.

You don't need a really hard shift to make the transmission last, but you do need a quick shift, especially at high hp levels. Shifts can be quick without being harsh.

From what I've learned from Dave @ TEP, the transgo kit is a good place to start for the accumulators, and he has a recommended range of feed hole sizes that works well from his experience. That gets you in the ball park, and you can fine tune (a little softer or harder) via the Force Motor Current tables in the tune.

Very nice i do have a shift kit and tuner. I'm thinking up my power level that there will be no need to modify the spacer place maybe just by a hundreth or something

I probably will. The transmission is in may basement is a 1000 pieces waiting for all the parts to come in to be rebuilt.

I used stock hole sizes, transgo kit and tune the first time I put mine together. It was alright on 93 with a 3.4" pulley but I wasn't thrilled with the 1-2 shift after I switched to e85 and a 3.1". The next time I tore it down after about 15k the 2nd clutches were starting to get black. I would step the feed holes up a bit and if it shifts too hard for you at part throttle just back the pressure off in the tune.