transmissions ???

Justpunchit

NAXJA Member #1291

Location

Jaffrey, NH

• Jan 9, 2007

• #1

i have a 4.0 supercharged I6, now i was woundering what other options i have for a trans besides an aw4 OR will the aw4 still handle the horspower and abuse that i have instore for it? any heavy rebuild kits for it or upgrades?

 

A

autocrossxj

NAXJA Forum User

Location

milwaukee wisconsin

• Jan 9, 2007

• #2

the aw4 will handle the supercharger, at a minimum you should install a tranny cooler (i think this should be done to every auto tranny as cheap insurance) I believe level 10 makes upgrades for the aw4

 

Justpunchit

NAXJA Member #1291

Location

Jaffrey, NH

• Jan 9, 2007

• #3

yeah i already have a tranny cooler with an electric fan, have the url for them??

 

Waterhammer

NAXJA Forum User

Location

New York, but not really

• Jan 9, 2007

• #4

From the people I've recently taked to the aw4 is a great transmission, as far as auto's go, and has no problem handling up to 350hp. I just finished a rebuild and found many parts were fine, which I previuously thought I trashed, only running the stock 4.0. I did read somewhere, someone thought it could take up to 450hp, could be just a rumor though...

 

Justpunchit

NAXJA Member #1291

Location

Jaffrey, NH

• Jan 9, 2007

• #5

umm ok and what about my Tcase i never ran a rig with 300+ hp so im not sure what needs to be done

 

cal

NAXJA Forum User

NAXJA Member

Location

Hammertown, USA

• Jan 9, 2007

• #6

Toyota puts the aw4 in turbocharged supra's as the a340, so I'm pretty sure you won't have problems running a 4 liter on it under any induction.

What transfer case do you have? There are some ugprades available if necessary for the np231, there's not much for the np242.

Also, what year jeep is it?

 

R

RickyN29

NAXJA Forum User

Location

San Jose, California

• Jan 9, 2007

• #7

cal said:

Toyota puts the aw4 in turbocharged supra's as the a340

Click to expand...

Really??? Well that's nifty

 

87manche

NAXJA Forum User

Location

Ohio

• Jan 9, 2007

• #8

RickyN29 said:

Really??? Well that's nifty

Click to expand...

also used in lexus.

as for the t-case, look at upgrading the planetaries and chain using chevy parts if it's a 231.
see here:
http://madxj.com/MADXJ/technical/technicalfiles/JAtCaseUpgrade/tCaseUpgrade.htm

 

XpedientJ

NAXJA Forum User

Location

MA

• Jan 9, 2007

• #9

Justpunchit said:

yeah i already have a tranny cooler with an electric fan, have the url for them??

Click to expand...

WHERE...did you fit the trans. cooler-with-fan unit???

Thanks.

 

Justpunchit

NAXJA Member #1291

Location

Jaffrey, NH

• Jan 10, 2007

• #10

Expedient said:

WHERE...did you fit the trans. cooler-with-fan unit???

Thanks.

Click to expand...

i took out my ac condenser becuase i run onboard air so it fits with fan right behind my grill its a great little setup.

 

Justpunchit

NAXJA Member #1291

Location

Jaffrey, NH

• Jan 10, 2007

• #11

and my jeep is a 95 with a np 231 from a 99 xj

 

M

MudDawg

NAXJA Member #728

Location

Central Florida

• Jan 10, 2007

• #12

If you manage to toast the AW-4.....Hesco sells an adapter that allows the installation of a GM Turbo 400 trans. If properly built AND COOLED a TH400 will withstand anything the jeep motor can throw at it. Years ago I ran a 400 behind a LS6 in a very heavy '71 Chevelle....with slicks....I broke EVERYTHING.....except the tranny.