AT shift mod... Reviews?

[BoostedTalonTS]

Has anyone here tried this "clutchless manual" mod yet? -It sounds interesting!

http://www.rmtmods.ca/manual shift.htm

 

[overdoseheroin]

that sounds ####in sick, whoever thought that up is a smart dude.

 

[92awdgsx]

It works, but putting too much line pressure to the stock tranny will cause it to blow internal seals. I've done it. but it is a good idea if you reduce the voltage going to the PCSV to .5 or .4 volts by using a resistor.

 

[TSiWarrior]

Eh, it looks pretty good. I personally like my shiftox. Upshift and downshift when you want I also built a variable pressure controller. Im pretty impressed with the writeup and such, it's nice. Building shiftboxes is my main form of income right now, haha. Good job to the inventor of that!

 

[talonkev]

I'm going to try out this tranny mod as soon as i figure out a way to get the .52 volts. Ill post results when i get it done.

 

[TSiWarrior]

If your not all for a shiftbox which enables up/down you can always use a potentiometer that will allow you to turn 12volts into .52volts. Just go to radioshack and grab one of the more heavy duty pot's and grab your multimeter and turn it until you get the desired .52 then find a way to secure the knob on the pot so it doesn't get bumped.

 

[talonkev]

I finally got the mod all wired up and it works awesome along with my converter and shift kit. The 5 speed guys better watch out now!!!

 

[napkinthief]

does this work for 2gs?

and does downshifting work the same or do you leave it in D and put it back in L after you stop?

 

[talonkev]

I would think it would work on a 2g, just the wires would probably be different colors, but I can't say for sure because I don't know much about 2g tranny's. But to answer your second question if you try to pull out in D it shifts up to drive or even overdrive if you have the OD button pushed, as soon as you start to pull out. It doesn't work very well and I'm sure its bad news for the tranny. I always turn the switch off as soon as I'm done with the pull and let off the throttle, because the transmission also won't kick down a gear if you get on it hard with the mod engaged.

 

[Laser93Awd]

It works, but putting too much line pressure to the stock tranny will cause it to blow internal seals. I've done it. but it is a good idea if you reduce the voltage going to the PCSV to .5 or .4 volts by using a resistor.

Where's that 0.5 v come from? So based on your theory , I should apply 0.5 volts all the time to the PCSV to get smoother shift?

 

[napkinthief]

I think I should just stick with a manual tranny when I save for the swap.

 

[talonkev]

Where's that 0.5 v come from? So based on your theory , I should apply 0.5 volts all the time to the PCSV to get smoother shift?

I used another tps to get the signal, but you can't use the false .5 volt signal all the time unless you only drive the car on the track, and never want to downshift, or kick down. The mod should only be engaged when you are manually WOT up shifting.

 

[talonfromtenn]

How does this affect the heat build-up in the tranny? I have an auxillary cooler already in place, but I'm wondering what types of problems anyone's run into.

 

[Laser93Awd]

I used another tps to get the signal, but you can't use the false .5 volt signal all the time unless you only drive the car on the track, and never want to downshift, or kick down. The mod should only be engaged when you are manually WOT up shifting.

Ok 92awdgsx is saying that 0.5 volts to the PCSV is reducing the pressure applied to the tranny, I just wanted to know where this value is coming from. Are you really sure that the 0.5 volts applied instead of 0 volts is changing anything ?