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post #1 of 6 (permalink) Old 10-17-07, 06:46 AM Thread Starter
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P71 conversion to T5 standard

Hi I am considering converting my 2002 P71 to a standard. Hate auto, love standard !!.
Issues I may encounter are: computer management, shifter alignment.
Something better than a T5 ?
Any thoughts would be appreciated.
Thank You
Tom

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post #2 of 6 (permalink) Old 10-18-07, 06:28 PM
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Re: P71 conversion to T5 standard

TR-3650 (from a Mustang GT)

Good luck on the conversion. you'll need to do quite a bit of fabrication
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post #3 of 6 (permalink) Old 10-21-07, 10:35 PM
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Re: P71 conversion to T5 standard

I want to swap standard transmission on my 1999 p71 to.

Do you have more information about that? I try search fonction but i'm not satisfy.

T-45 from 96-99 gt mustang is a good choice?

This transmission can drive 325-350 hp? I was supose to put my car supercharged (roots blower) but a I prefer twin small turbo to be more soft with transmission and differential.

My 4r70w realy sucks when it's time to put down power on the track and I extremely prefer manual transmission.

Sorry thomasr to use you thread but it's in the same way.

Thx and sorry for my english, I'm french canadian from Quebec!

1999 p71, 15.07 @ 92.5 mph 2.13 60ft
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post #4 of 6 (permalink) Old 10-22-07, 10:19 AM
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Re: P71 conversion to T5 standard

There's one or two guys on CVN (Crown Victoria, Grand Marquis, Marauder, and Towncar) that have done it. You might go over there and ask about it. Most complex part of it is that it requires a tune on the computer so that it doesn't wonder where the transmission went (i.e., it doesn't have an automatic tranny to control anymore, so it makes the engine run funny).


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post #5 of 6 (permalink) Old 10-28-07, 04:59 PM
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Re: P71 conversion to T5 standard

I don't know why you say the 4r70w sucks? Got one in a 4.6 coupe with a 88mm turbo running low 9's. I think just cause its an auto and you perfer a manual I could see that, but they will live under plenty of power. And the car will be faster with an auto with turbo's than rowing the boat.
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post #6 of 6 (permalink) Old 10-30-07, 01:53 PM
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Re: P71 conversion to T5 standard

Just j-mod your 4r70w

My Fords:
'98 Crown Vic LX
-167k miles and counting. Still used as daily driver.

'99 Crown Vic Police Interceptor
-Completed full PI swap
-Marauder Airbox & 80mm MAF
-'04 CVPI Ziptube
-ADTR ported plenum
-Steeda Intake Spacer
-BOC tune
-J-Mod tranny
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