Re: [Amc-list] Aisin 4 speed Trans. - High Performance -

[msproviero@xxxxxxxxxxx]

The low-buck solution that Jeepers have discovered (mostly XJ owners with strokers) to the AW4 "weakness" is to buy the 2wd Toyota-spec A340 that has slightly higher torque/hp ratings and swap the required output parts.  The last time I did it, it was to the tune of $300 each for *new* transmissions + labor.

The only problem is that this only works cheaply for 96-down AW4's.  If you have a 97-up with the different housing and sensors, you need to swap housings (basically raiding the new trans for all its guts).  Still works out well, but could be more costly if you are not the DIY type.

They don't cause me any concern, though.  Run them till they blow up and just replace them.  They last long enough, are common enough, and cheap enough for a failure to be acceptable under abuse.


-Spro

-------------- Original message -------------- 
From: Brien Tourville <hh7x@xxxxxxxxxxx> 

> -0400 From: Frank Swygert Subject: Re: [Amc-list] 
> Trannies - con't 
> 
> 
> 
> I'm almost agreeing with Brien on this one -- Novak has a vested 
> interest in selling adapters. I said almost... Most of Novak's customers 
> are hard core four wheelers. They beat on their rigs hard and build high 
> power. The AW4 high efficiency torque converter has a low stall and 
> isn't well suited for high rpm horsepower engines. I don't think anyone 
> makes a high stall converter for it. Most of Novak's customers would 
> want to run big V-8s (built 360s) with high stall converters so they can 
> rev the engines to build power and still not be moving fast. The AW4 
> won't do that. So from a big power four wheeler perspective, the 
> transmission just isn't strong enough. As I said before, I wouldn't put 
> it behind a drag racing built 360, but I'd definitely put it behind a 
> mildly built cruiser that might see an occasional pass down the strip. 
> -- Frank Swygert Publisher, "American Motors Cars" Magazine (AMC) For 
> all AMC enthusiasts http://farna.home.att.net/AMC.html (free download 
> available!) 
> 
> 
> 
> 
> 
> ===.=== 
> 
> 
> 
> 
> 
> Ok - perhaps, but Novak left zero margins in his blanket whitewash on 
> the Aisin trans. 
> - granted he caters to 'Wall Climbers' - but not totally. 
> 
> 
> 
> Want an AW4 to go behind a 'Werk'd AMC 360 / 401 ? 
> 
> Want an AW4 Aisin convertor capable of handling these motors ? 
> 
> Want a 2wd Aisin 4spd. Auto - for 'Hot' Street ? 
> 
> 
> 
> Again, the Aisin trannies are being used behind some Brutal 
> Twin Turbo Supras - seeing 600 to 700 rwhp - . 
> 
> 
> Yes, these are built ups - after 400 rwhp - , but so are 
> the TH-400 / A-727 / Ford whatevers - those aren't just 
> valve bodies and good to go. 
> 
> 727s kick sprags out - require the HD planateries - oil 
> cooling internal mods - my 'Build' files aren't on this rig, 
> but the read is entailed and costly. 
> 
> 999s with the 5 clutchs don't get oiling to the 5th clutch 
> since there isn't a lube hole near it - the good MoPar builders 
> know these things - or eventally they burn. 
> 
> HEMI torquefiltes torched 5th plates which is why the 5th plate 
> setups came in a box - put it in yourself - if not - you got the 
> 440 Torqueflite spec. 
> 
> 
> 
> So do I think Novak is 'up front' ? No. 
> 
> Glad he's doing for the hobby ? Sure. 
> 
> Pays to read up before you Plastic ? Yeah. 
> 
> 
> 
> Can you run an Aisin behind a powerful AMC ? 
> 
> 
> 
> Yes. 
> 
> 
> I'd speculate, and agree with Frank that 
> 3-350 HP is Max - either have 'spares' 
> or get one 'massaged for power levels 
> up to running 'High 9s' - > go here: 
> 
> 
> 
> 
> http://www.*import**performance*trans.com/ 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> -- 
> 
> =Bt= 
> milnersXcoupe 
> 
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