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PI Torque Converter, single vs multi disc ?

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Mustang Forums >> Ford Mustang Tech >> 2005 - 2008 Mustangs >> 4.6L V8 Specific >> Drivetrain Performance >> PI Torque Converter, single vs multi disc ? Page: [1]
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PI Torque Converter, single vs multi disc ? - 5/6/2008 9:44:31 PM   
desslok40


Posts: 449
Joined: 2/19/2006
Status: offline
hello all,

Ok I am in the market for a torque converter, have heard enough about the TCI Streetfighter (re-worked stock) torque converter and decided to go with Precision Industries , how big a difference is there between their single disc and the multi disc model?

Is the PI single disc like the TCI, a re-worked stock unit, or a brand new part, is the multi-disc worth the extra $300 ?  They both have a 2 year warranty so what is the harm in getting the single disc unit? When I supercharge I won't be doing insane boost levels, just enough to get me 400 RWHP/RWTQ, so basically sell me on the multi disc, what exactly does it have to offer over the single disc?  I am looking at 3200 stall rpm.


thanks





_____________________________

2006 GT - AUTO
Performance:
C&L Racer Intake w/ BAMA 91 tune
SLP LT Headers
SLP X-Pipe w/ CATS
3.73 FRPP Gears
Granatelli UCA/LCAs

Looks:
3D Carbon Spoiler
CDC Trim Panel w GT Logo

13.3@103.42 1.96_60ft
Post #: 1
RE: PI Torque Converter, single vs multi disc ? - 5/7/2008 4:43:32 AM   
RF2.1


Posts: 142
Joined: 8/30/2005
Status: offline
As I understand it, a multi-plate TC will allow the converter to "hold" under high power levels, such as cars that are super- or turbocharged. Hopefully someone can explain this a little better than I can. At any rate, I have the PI multi-plate unit with a 3,000 stall. Had it for about 2 months with a naturally aspirated engine, and it seems like I get a little more torque and power transmitted to the rear wheels with it. But, I'll be putting on my Whipple this week, which is why I got it in the first place.

David

_____________________________


*Whipple Crew Member*

(in reply to desslok40)
Post #: 2
RE: PI Torque Converter, single vs multi disc ? - 5/7/2008 10:06:43 AM   
sevenleaf


Posts: 693
Joined: 7/11/2007
Status: offline
I'm running a pi triple disc 3000 stall too. 

_____________________________


Kooks Headers O/R xpipe, Saleen 3.4, I/W 10% OD, Pi Converter, GT500 FP, 60#, Mafia, Carbon Fiber inlet, 90mm Maf

(in reply to RF2.1)
Post #: 3
RE: PI Torque Converter, single vs multi disc ? - 5/7/2008 11:28:14 AM   
MexGT

 

Posts: 2038
Joined: 2/11/2007
From: Tampico, Mexico
Status: online
PI multidisc @3,500 here.

Get the multidisc, you wont have to worry anymore of the TC, this thing is bulletproof.


_____________________________


07GTAuto

Not stock NA.

(in reply to sevenleaf)
Post #: 4
RE: PI Torque Converter, single vs multi disc ? - 5/7/2008 1:30:46 PM   
stealth_GT

 

Posts: 412
Joined: 1/20/2008
Status: offline
quote:

ORIGINAL: MexGT

PI multidisc @3,500 here.

Get the multidisc, you wont have to worry anymore of the TC, this thing is bulletproof.



which model do you have exactly?? been on their site and it's hard to tell which one
to order for my car.Gonna stay NA til next summer when going FI.

thanks.


_____________________________

2008 MUSTANG GT/CS
5 SPEED AUTO
C&L RACER CAI
BRENSPEED 90 OCT TUNE
PYPES MUFFLER DELETE RACE PIPES

...FRPP 4.10s SOON!!~


(in reply to MexGT)
Post #: 5
RE: PI Torque Converter, single vs multi disc ? - 5/7/2008 2:07:00 PM   
MexGT

 

Posts: 2038
Joined: 2/11/2007
From: Tampico, Mexico
Status: online
The Stallion is the only one for Fords. 

_____________________________


07GTAuto

Not stock NA.

(in reply to stealth_GT)
Post #: 6
RE: PI Torque Converter, single vs multi disc ? - 5/7/2008 9:52:48 PM   
desslok40


Posts: 449
Joined: 2/19/2006
Status: offline
http://www.lightningforceperformance.com/pi-multidisc-torque-converter-200507-mustang-gt-p-475.html

Can't really find it anywhere else where it says without a doubt for 2005+ Mustang GT

< Message edited by desslok40 -- 5/8/2008 9:19:03 AM >


_____________________________

2006 GT - AUTO
Performance:
C&L Racer Intake w/ BAMA 91 tune
SLP LT Headers
SLP X-Pipe w/ CATS
3.73 FRPP Gears
Granatelli UCA/LCAs

Looks:
3D Carbon Spoiler
CDC Trim Panel w GT Logo

13.3@103.42 1.96_60ft

(in reply to MexGT)
Post #: 7
RE: PI Torque Converter, single vs multi disc ? - 5/8/2008 5:57:06 AM   
stealth_GT

 

Posts: 412
Joined: 1/20/2008
Status: offline
quote:

ORIGINAL: MexGT

PI multidisc @3,500 here.

Get the multidisc, you wont have to worry anymore of the TC, this thing is bulletproof.



how is drivability with that stall for DD?? must really get up and go!~


_____________________________

2008 MUSTANG GT/CS
5 SPEED AUTO
C&L RACER CAI
BRENSPEED 90 OCT TUNE
PYPES MUFFLER DELETE RACE PIPES

...FRPP 4.10s SOON!!~


(in reply to MexGT)
Post #: 8
RE: PI Torque Converter, single vs multi disc ? - 5/8/2008 9:55:11 AM   
sevenleaf


Posts: 693
Joined: 7/11/2007
Status: offline
You have to call PI and get the part #.  They told me they don't have it listed on their website.  I would give ST motorsports a call for PI converters good source.

_____________________________


Kooks Headers O/R xpipe, Saleen 3.4, I/W 10% OD, Pi Converter, GT500 FP, 60#, Mafia, Carbon Fiber inlet, 90mm Maf

(in reply to stealth_GT)
Post #: 9
RE: PI Torque Converter, single vs multi disc ? - 5/9/2008 2:22:24 PM   
stealth_GT

 

Posts: 412
Joined: 1/20/2008
Status: offline
http://www.lightningforceperformance.com/pi-multidisc-torque-converter-200507-mustang-gt-p-475.html

here is the one I want but good god..for $1500 it better be a helluva mod lol ($600 install)


will be getting it after gears (3.73s or 4:10s) so it should really haul ass especially with the
intake/tuner...


_____________________________

2008 MUSTANG GT/CS
5 SPEED AUTO
C&L RACER CAI
BRENSPEED 90 OCT TUNE
PYPES MUFFLER DELETE RACE PIPES

...FRPP 4.10s SOON!!~


(in reply to sevenleaf)
Post #: 10
RE: PI Torque Converter, single vs multi disc ? - 5/9/2008 4:48:48 PM   
desslok40


Posts: 449
Joined: 2/19/2006
Status: offline
600 !!!  thats like almost 8 hours of labor @ $80 an hour, ridiculous

There is a very reputable shop near me that only does performance transmissions, they will install a torque converter on my GT for $350-400...............he said it is really not as difficult as most shops will make it out to be, he has installed about 3 of these PI multi discs so far...

I am very confident he knows what he is doing and I am lucky to be close, bybye tax rebate check !! I am going with the PI Multi Disc.


_____________________________

2006 GT - AUTO
Performance:
C&L Racer Intake w/ BAMA 91 tune
SLP LT Headers
SLP X-Pipe w/ CATS
3.73 FRPP Gears
Granatelli UCA/LCAs

Looks:
3D Carbon Spoiler
CDC Trim Panel w GT Logo

13.3@103.42 1.96_60ft

(in reply to stealth_GT)
Post #: 11
RE: PI Torque Converter, single vs multi disc ? - 5/9/2008 5:10:27 PM   
stealth_GT

 

Posts: 412
Joined: 1/20/2008
Status: offline
quote:

ORIGINAL: desslok40

600 !!!  thats like almost 8 hours of labor @ $80 an hour, ridiculous

There is a very reputable shop near me that only does performance transmissions, they will install a torque converter on my GT for $350-400...............he said it is really not as difficult as most shops will make it out to be, he has installed about 3 of these PI multi discs so far...

I am very confident he knows what he is doing and I am lucky to be close, bybye tax rebate check !! I am going with the PI Multi Disc.



lol you think that's bad..there is this one (and I really do mean ONE lol) shop that charges
$150 an hour .They tried telling it was going to be about $2k just for gears and TC install,
they asked me what I thought ... I left them with a dial tone.

The dealership really IS the only place in town that will do the job for a reasonable
ammount plus they will still honor warranty since they are doing the install.

Can't wait for the mods but the install is really breaking my wallet.


_____________________________

2008 MUSTANG GT/CS
5 SPEED AUTO
C&L RACER CAI
BRENSPEED 90 OCT TUNE
PYPES MUFFLER DELETE RACE PIPES

...FRPP 4.10s SOON!!~


(in reply to desslok40)
Post #: 12
RE: PI Torque Converter, single vs multi disc ? - 5/12/2008 12:37:38 AM   
2006gtmike

 

Posts: 136
Joined: 4/29/2007
Status: offline
I'm looking into getting a PI Torque Converter with a 3000 Stall Speed for my currently NA Mustang GT with 3.73 Gears.

1.) Should I get a multi-disc in case I go with the Whipple FI in the coming years or would this hurt driveability on a NA car?

2.) I obviously want a lower 1/4 mile but, what differences (positive and negative) in daily driving should I expect...
    And in inclement weather?

3.) Is this the best brand torque converter to purchase for our cars?

4.) What stall speed would you recommend for my application?

I'm definately do NOT want a trans brake or anything too serious.


_____________________________

06 GT Prem AT/Silver/Light Graphite/17'' Silver Bullits/FormulaONE Tint/3DCarbon Rear 1/4 Louvers/MGW Int/14'' Black Shorty/Borla 11750s/C&L Street CAI/Evo 93/FRPP 3.73/1-Piece DS/Frnt Loop/Steeda UCA+LCAs+PHB+Brace+Reloc+Upp Mnts/KONIs/Vogtland .8/1.2s

(in reply to stealth_GT)
Post #: 13
RE: PI Torque Converter, single vs multi disc ? - 5/12/2008 1:07:23 AM   
stealth_GT

 

Posts: 412
Joined: 1/20/2008
Status: offline
^^

how do you like your 3.73s and a torque converter?


_____________________________

2008 MUSTANG GT/CS
5 SPEED AUTO
C&L RACER CAI
BRENSPEED 90 OCT TUNE
PYPES MUFFLER DELETE RACE PIPES

...FRPP 4.10s SOON!!~


(in reply to 2006gtmike)
Post #: 14
RE: PI Torque Converter, single vs multi disc ? - 6/11/2008 12:49:57 PM   
stealth_GT

 

Posts: 412
Joined: 1/20/2008
Status: offline
did you get that converter?? 

_____________________________

2008 MUSTANG GT/CS
5 SPEED AUTO
C&L RACER CAI
BRENSPEED 90 OCT TUNE
PYPES MUFFLER DELETE RACE PIPES

...FRPP 4.10s SOON!!~


(in reply to stealth_GT)
Post #: 15
RE: PI Torque Converter, single vs multi disc ? - 6/11/2008 9:59:45 PM   
2006gtmike

 

Posts: 136
Joined: 4/29/2007
Status: offline
I only have 3.73 Gears and love them.

I got a 1 piece aluminum driveshaft installed at the same time so it''s hard for me to tell the difference with the gears alone.

I do not have an aftermarket torque converter.

I purchased a Whipple HO Kit instead so the torque converter I will have to get later.

What stall speed would be recommended for a FI daily-driver?

_____________________________

06 GT Prem AT/Silver/Light Graphite/17'' Silver Bullits/FormulaONE Tint/3DCarbon Rear 1/4 Louvers/MGW Int/14'' Black Shorty/Borla 11750s/C&L Street CAI/Evo 93/FRPP 3.73/1-Piece DS/Frnt Loop/Steeda UCA+LCAs+PHB+Brace+Reloc+Upp Mnts/KONIs/Vogtland .8/1.2s

(in reply to stealth_GT)
Post #: 16
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