Strokers and the AW4

[CherBear]

If you have read my other thread, i am long term planning on buying a stroker. How ever i was wondering how well my aw4 would hold up to more power?
My current trans has 120k on the clock, doesn't seem to have any problems, shifts fine. (its a 2000 by the way)

I considered posting this in my other stroker thread, but since i couldn't find much useful information via search, i thought it deserved its own thread.

Thanks in advance.

 

[old_man]

There isn't a problem. I have 60k+ on mine. They are put in cars with much more hp.

 

[MadPikAvenger]

If memory serves correct the AW4 (A340 variation) was used in Supra's. Here's a link with lots of info.

http://www.jeepforum.com/forum/f11/so-i-think-i-found-worth-wild-upgrade-aw4-lots-info-518006/

 

[CherBear]

If memory serves correct the AW4 (A340 variation) was used in Supra's. Here's a link with lots of info.

http://www.jeepforum.com/forum/f11/so-i-think-i-found-worth-wild-upgrade-aw4-lots-info-518006/

I thought the supra trans was much more beefier but of the same design?
I know the AW4 has a very good reputation for being durable but i wasnt sure if it was THAT good.

Time for more research...

 

[yossarian19]

IIRC the difference between an A340 and an AW4 is the beefier valve body in the A340. Other than that - same box of gears.

 

[88JeepXJ]

All depends on how the tranny has been treated to this point and how you plan on treating it once you get the stroker in there. My buddy built a 4.7 with a ported HO head oversized valves higher compression, Crane cams, header etc on his '88 AW4 with 120k miles and it was fine for 20-30k miles. By the end he was having shifting problems but it isn't clear if that was due to the motor or just a bad circuit somewhere. He was leaning to the circuit since it was fairly intermittent.

They should be fine with a stroker as long as you don't do too many burnouts or drag starts. You can fry an AW4 with a stock motor if you try hard enough

 

[CherBear]

They should be fine with a stroker as long as you don't do too many burnouts or drag starts. You can fry an AW4 with a stock motor if you try hard enough

Uhhh I cant make any promises about burnouts or drag starts once i get a stroker!! :cheers:

 

[Mesh]

Burnouts and drag starts work for me. I rebuilt mine but the AW4 can easily handle it I beat on it all day. You lose some power because they are made soft and comfy.

 

[wolfpackjeeper]

I been flogging on my stroker for a while with no problems. 33's aw4, D35(yea, It started out as a run it till I break it but it will not die, It does not even make bad noises yet)

I did a bunch of hard launches, heavy towing, ect, with no problems yet.

 

[KJurasek]

I am in the same boat as you on this one. I am looking at either buying a stroker or building my own. As for the AW4, I hear they hold up to the Stroker. I have read several things and hear even more. I guess it depends on how you treat it as mentioned above and how it was treated before you. If does go and you pull it apart and find it in pieces, then you can contact Level 10 Performance to rebuild it. They are a little pricey, but they can build a very strong AW4. Somewhere in the 450 HP range. Anything more, then I would recommend a 700R4 or T350. Not the T400. Even though it is a stronger transmission, it has some parasitic power loss associated with it.

Think TCI.

Good luck.

KJ

 

[KillerCOM]

Guys as far as durability of the AW4, it mechanically the same as the Asin 340. The 340 is used behind everything from a V8 Lexus, our Cherokee, to turbo Supra's. so they can take a beating.

 

[JJacobs]

I raced one behind a 401 for a while. It did eventually start slipping but I got the trans used for $50 and installed it without even pulling the pan and changing the filter. Could have already had 200K miles on it for all I know.

Here it is towards the end: http://videos.streetfire.net/video/1261-113-at-Julesburg-CO_31796.htm - somewhere around 360 rwhp at the time vs stroker's 200.

I'm sure one in good condition wouldn't even know there was a stroker in front of it.

 

[wolfpackjeeper]

mine does fine

 

[CherBear]

I raced one behind a 401 for a while. It did eventually start slipping but I got the trans used for $50 and installed it without even pulling the pan and changing the filter. Could have already had 200K miles on it for all I know.

Here it is towards the end: http://videos.streetfire.net/video/1261-113-at-Julesburg-CO_31796.htm - somewhere around 360 rwhp at the time vs stroker's 200.

I'm sure one in good condition wouldn't even know there was a stroker in front of it.

What all did that that mj have done to it?

 

[wolfpackjeeper]

if I remember correctly, everything

 

[CherBear]

And you think the stoker only puts 200 to the rear wheels? I thought a decent 4.7 would put about 280 @fw. Well i guess assuming 25% loss with the aw4 you are pretty close...

 

[wolfpackjeeper]

you would be doing outstanding to get 280 at the crank. If you throw countless dollars and build the perfect stroker you can break that mark.

200 at the rear wheels is quite a bit actually, when you consider that the stocker was probably making less than 80hp back there.

 

[CherBear]

you would be doing outstanding to get 280 at the crank. If you throw countless dollars and build the perfect stroker you can break that mark.

200 at the rear wheels is quite a bit actually, when you consider that the stocker was probably making less than 80hp back there.

I have seen alot of strokers advertised at 275+

Such as the atk stroker
http://high-performance-engines.com...?Screen=PROD&Store_Code=ATK&Product_Code=HP24

Maybe what i need is a 401 like in the video... :repair:

 

[wolfpackjeeper]

the ls1 thread is only a few clicks away...

that is my install goal for my MJ.

 

[j33pownr]

There is a build on pirate4x4 by YJ and Corey where he has a stroked and turboed 4.0L running 263.7 RWHP & 353.2 ft/lbs of RWT. Thats on a lifted YJ with 40" LTB's.

So I think you will be fine. Its a good 'long' read.

http://www.pirate4x4.com/forum/showthread.php?t=614289&highlight=400hp+turbo&page=22