My friends new PI trqe converter!

big T · Oct 22, 2005

A friend of mine just installed his 3K stall P.I (3disk) converter into his 03 GT and Im happy to report that he is all smiles. He said that its the best mod to date for him, he has Slp full exhaust, 4:10's, H&R super sport springs, steeda upper/lower CA's, JLT cold air into 70mm t-body/dragon plenum, and loves the way his car takes off now.
You know we had to race and thus far weve finished pretty even, out of 3 races (street races) and all he needs now is to get use to launching his carand hell be in the low 13's as well.

ProCharger GT · Oct 23, 2005

PI's are the ****, nobody realises what a good mod they are until they get one

Dark Knight GT · Oct 23, 2005

First, let me say I'm happy to hear he's having great results with his PI converter. I remember when I first put mine in, I couldn't of been more happier. The hard launches and good climb in rpms these converters allow is really awesome.

Now, let us just hope that his torque converter holds up. I have a PI torque converter that is a single disk, and the clutch plate is slipping in mine. It will probably have to be rebuilt. I'm going to look into pricing on a multi-disk setup for my next converter, but I don't think multi-disk vs. single disk is really the issue. Single disk torque converters have held up for years in cars producing as much as 600hp without any slippage issues.

It appears that line pressure feed to the Torque converter clutch might be the issue, and if this is the case, it will not matter how many clutch plates the torque converter has, it will fry them all without proper line pressue feed. Let's just hope I figure this out, so I can report back my findings and everyone can learn something from it.

ProCharger GT · Oct 23, 2005

good luck DK

I've had mine for about 2 years, triple disc locking - no troubles thus far.

propellerhead · Oct 23, 2005

How has it changed normal city driving?

ProCharger GT · Oct 23, 2005

hasn't really, just cruisin around town is no problem. it might feel slightly underpowered when your RPM's are under the stall speed (i.e. city driving), but once i go above 2800 RPM's the boost comes on and it's time to prepare for flight

streetstang03 · Oct 23, 2005

vids!!

Stangdriver1119 · Oct 23, 2005

is a torque converter hard to install yourself?

03ghoststang · Oct 23, 2005

how much did your friend get his PI convetor for ive been looking for one?

and no they are not hard to install if you have mechanical knowledge but the tranny does have to be dropped

03ghoststang · Oct 23, 2005

ProCharger GT said:
hasn't really, just cruisin around town is no problem. it might feel slightly underpowered when your RPM's are under the stall speed (i.e. city driving), but once i go above 2800 RPM's the boost comes on and it's time to prepare for flight

so basically it'll just feel slugish under the stall but get it near to it and it's ready to take off what is the stall on your convertor?

big T · Oct 23, 2005

03ghoststang said:
how much did your friend get his PI convetor for ive been looking for one?

and no they are not hard to install if you have mechanical knowledge but the tranny does have to be dropped

He paid roughly 950.00 for the converter, 50.00 for trans cooler, and 250.00 to install them both by a ford mechanic. He said his car feels like 50+hspwr to the rear wheels...and yeah it does on my car as well.

propellerhead · Oct 23, 2005

Do you end up running at higher RPMs during normal city driving?

Dark Knight GT · Oct 23, 2005

propellerhead said:
Do you end up running at higher RPMs during normal city driving?

Yeah, somewhat. With 4.30 gears like what I have, its not much of a problem though.

big T · Oct 23, 2005

propellerhead said:
Do you end up running at higher RPMs during normal city driving?

Nah, car just seems to wanna shift a bit more than stock. I drive around town with the od off and cut it on when driving the freeways, seems to work better that way. Just make sure the line pressure is good cause ive read that if not, the converter will slip more than it should and ruin in the process. If its helpful, 5 of my gt/mach friends with autos all use PI converters w/o any issues. One friend has been running his single disk 3k stall for 2+ years w/o issues. He runs a full bolt on 02 gt and runs 12.7's at the track...cams, full exhaust, 4:30s and suspension.

ProCharger GT · Oct 24, 2005

streetstang03 said:
vids!!

soon

ProCharger GT · Oct 24, 2005

03ghoststang said:
so basically it'll just feel slugish under the stall but get it near to it and it's ready to take off what is the stall on your convertor?

it will feel slightly sluggish

2800RPM is my stall

propellerhead · Oct 24, 2005

big T said:
Nah, car just seems to wanna shift a bit more than stock. I drive around town with the od off and cut it on when driving the freeways, seems to work better that way. Just make sure the line pressure is good cause ive read that if not, the converter will slip more than it should and ruin in the process. If its helpful, 5 of my gt/mach friends with autos all use PI converters w/o any issues. One friend has been running his single disk 3k stall for 2+ years w/o issues. He runs a full bolt on 02 gt and runs 12.7's at the track...cams, full exhaust, 4:30s and suspension.

What do you mean by wanting to shift a bit more than stock? Like earlier? Later?

I've been considering a single disk. I know there are some strong sentiments for the multi disk on some boards but I also hear many single disk users that have no problems at all. What kind of price difference was it between the multi and single?

03ghoststang · Oct 24, 2005

ProCharger GT said:
it will feel slightly sluggish

2800RPM is my stall

oh ok i just wanna know at what stall peopel ussually get them i just wanna have everything ready to go on beeore i go supercharged

ProCharger GT · Oct 24, 2005

for a DD the typical stall speed is 2800-3200 - you can get a lot of info from http://www.converter.com/

Dark Knight GT · Oct 24, 2005

propellerhead said:
What do you mean by wanting to shift a bit more than stock? Like earlier? Later?

I've been considering a single disk. I know there are some strong sentiments for the multi disk on some boards but I also hear many single disk users that have no problems at all. What kind of price difference was it between the multi and single?

I didn't really notice any difference in shift paterns after the install of my converter. Now, if you get a computer chip or ECU flash to go with the converter, and to increase line pressure, shift firmness, etc., you might notice a difference in shift patterns then.

A multi-disk is usually 200-300 dollars more than a single disk. If you can afford it, go with a multi-disk. Not saying that it's "needed", but in the long haul, it will be more stable and durable.

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