automatic transmission question

780 Views 7 Replies 5 Participants Last post by schwaebz98, Apr 14, 2008

bailey72

Discussion Starter · Apr 10, 2008

hi all,
Ive read in Modified mustang magazine that the 1999-04 Gt's automatic transmission has the 4R70W 4 speed trans and it can handle over 800 hp.I have a 2001 v6 convertible with an automatic transmission and was wondering what model is my trans and how many hp it can handle.

im new on this forum but ive been coming here for more then a year, found alot of answers to my questions, this forum is great, no v6 bashing:bigthumbsup..lol

Even thou its only a v6 and auto:so i still love her!!
its laser red and have 17" bullit wheels, light bar and k&n cai.
next mod in line is a h pipe with flowmaster 40s very soon:gringreen

thanks and later all!!

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whitepony331

· #2 · Apr 10, 2008

It depends how much horses a V6 can bring to the table, then you'll know what type of power your 4R70W can handle.

To upgrade the strength of your 4R70W, you should look into the JMod or Jerry Mod. It'll upgrade the strength and longetivity of your automatic transmission. If you want an even more upgrade on power output, you should look into high-performance torque converters.

There are only a few that know about modifications for the 4R70W, it's a good thing you asked.

VAP Auto - J-Mod Kits (Jerry Mod "JMod")

Hey, she's an '01 V6 too...and I've gotten jaws to drop from GT owners.

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bailey72

Discussion Starter · #3 · Apr 10, 2008

Thanks white for the info and that j-mod kit,i will look into for sure:bigthumbsup

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aowpsycho

· #4 · Apr 10, 2008

you have a 4R70W, and you can do a jmod valve body swap, accumulator swap, add a transgo shift kit to it, 3000rpm stall torque convertor, and you have yourself one mean auto tranny..

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OC Noob

· #5 · Apr 11, 2008

aowpsycho said:
you have a 4R70W, and you can do a jmod valve body swap, accumulator swap, add a transgo shift kit to it, 3000rpm stall torque convertor, and you have yourself one mean auto tranny..

Was looking at stall torque converters in another thread. What is that used for?

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aowpsycho

· #6 · Apr 13, 2008

OC Noob said:
Was looking at stall torque converters in another thread. What is that used for?

they multiply your torque...basically allows you to launch at higher rpms in an auto

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whitepony331

· #7 · Apr 14, 2008

B&M High Performance Torque Convertors are only for V8s.

Is there anywhere else?

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schwaebz98

· #8 · Apr 14, 2008

if you want to clean up the look of the shifter, and row the boat yourself sort of, you can get a B&M hammer shifter

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