Dom

iTrader: (2)

What exactly is involved in going to a vacuum 4L60E?

Orange Krush

Yeah ! I'd be interested in knowing the answer to that question myself ! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

What are the specific gains also ? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

<small>[ December 21, 2002, 11:47 AM: Message edited by: Orange Krush ]</small>

Dom

iTrader: (2)

It uses engine vacuum to control line pressure instead of doing it electronically. I'm not too sure on why it's so much better, but every strong build up converts it to vacuum. Maybe someone can chime in why it's so good.

red ws6 99

Switching to vacuum modulation is good because the computer can pull line pressure during shifts and at WOT or if you port the maf, etc, etc.

Gary

Dom

iTrader: (2)

Can you explain in more detail? Thanks.

JimmyKash

to my understanding the point of the vacuum modulator is to have the line pressure in the tranny directly relate to vacuum in the engine instead of relying on the computer too. From what i have been told the computer cannot keep up the line pressure in time when you floor it and it shifts/downshifts. This burns the clutches a little bit everytime.

With the vacuum modulator it can relate to the vacuum in the engine and react much quicker than a solenoid and keep up the line pressure

edit:

OH, to answer your first question...it is a very simple converions to go vacuum modulated and can be done with at home in the garage. I would reccomend the car to be on the lift or the tranny on the bench. You will need a drill,a drill bit, and some punches. Thanks

<small>[ December 23, 2002, 04:06 PM: Message edited by: JimmyKash ]</small>

Dom

iTrader: (2)

Very interesting. Thanks.

Tim98TA

iTrader: (7)

I also think that the PCM pulls some timing between shifts. Vacuum would eliminate this.

Tim

Dom

iTrader: (2)

You must be talking about TM.

Oh, is there some instructions on how to convert? If it's that simple I'm all over it. Maybe next summer.

JimmyKash

The kit is available from trans-go. They give you directions. Its rather simple

Orange Krush

Thanx for the great info ! <img border="0" title="" alt="[Wink]" src="images/icons/wink.gif" />

LS1derfull

Sounds like the only way to fly with A4!
This should be perfect way to keep line pressure hi under heavy engine loads. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Dom

iTrader: (2)

Did anyone find that kit? I couldn't even find trans-go's home page, if they even have one. Sponsors don't carry it. Who has this kit?

red ws6 99

The computer does pulling timing during a shift, but vacuum modulation will not change that. The pcm has to be edit to delte Torque Management. Vacuum modulation only affects line pressure, not timing. I am not sure were to get the parts for vacuum modulation, I had my transmission built by FLP.

Gary

JimmyKash

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by red ws6 99:
<strong> The computer does pulling timing during a shift, but vacuum modulation will not change that. The pcm has to be edit to delte Torque Management. Vacuum modulation only affects line pressure, not timing. I am not sure were to get the parts for vacuum modulation, I had my transmission built by FLP.

Gary </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">^^^ is all correct AFAIK

I honestly dont think the commone person is allowed to buy the kit from trans-go like the shift kits. Dont ask me why but my own tranny shop i used to work at wouldn't even sell one to my friend until they found out he was a dealer mechanic and knew what he was doing LOL

I would call up your local performance tranny shop and ask them about the kit and see if they will sell it to you

pedaltothemetal

I have a brand new vacuum modulator from Transgo.
46-MOD $50.00 shipped if you want it.

Also the
VBP-VAC $15.00 (by pass for forced induction only)
Was going to use it for my Incon TT, but didn't use it after I sold the TT.

Leo

Dom

iTrader: (2)

Do you have the instructions with it also? Can you scan those and email them? I really want this, but I need to see if I can do it myself.

Or if someone knows of any instructions online for this kit, I'd appreciate a link. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

pedaltothemetal

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Dom:
<strong> Do you have the instructions with it also? Can you scan those and email them? I really want this, but I need to see if I can do it myself.

Or if someone knows of any instructions online for this kit, I'd appreciate a link. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes all the intructions are there. There are 4 pages of instructions with diagrams and pictures. If you can install a trango shift kit, then you can do this.

Leo

94form2000z

iTrader: (10)

I had my tranny converted with rebuild. Noticeable difference to say the least. I do not know any specifics about it though. You will need to delete the TM from the PCM though.