Turning in my homework, Frank (was Re: 360 vs 4.0)

[hobbes57@xxxxxxxxxxx]

Sorry this took so long. I posted this last week, but the list appears to have been down, so here it is again. I have an Eagle with the trailer towing package, 3.08 gears. A 90 4.0, stock except for Ford HO injectors and a K&N cone filter is bolted to a 999 TF out of a 86 YJ, stock except for an RV shift kit. The converter is a rebuilt stock. Stall speed was between 2100 and 2200. Hope this is useful information...

Keleigh

On December 29, 2005 Frank Swygert wrote:

> So I have a "tasking" for you too... if you have a tach installed.  ;>
> Gp out and hold the brakes a little harder than you normally do at a stop light, and slowly rev the engine. At what rpm does it start to make the brakes slip? You should be able to easily hold the brakes up to around 2400-2500 rpm. Just don't hole the brake or engine speed long, don't want to burn anything up! A second or two won't hurt though. You know, like spooling the engine up for a hard launch.
> 
> What axle gears do you have? 3.08 or 2.5x?
> 
> On December 29, 2005 Keleigh Hardie wrote:
> 
> > I have a (almost) stock 4.0 in front of a 999, but I've never driven an AW4, so I can't really compare. But, at least you know someone!
> >
> > Keleigh
> >
> > On December 29, 2005 Frank Swygert wrote:
> >
> > > The AW-4 doesn't multiply torque like a TF or other US made autos -- 1.4:1 compared to an average of 2.5:1 for US made autos. So that 280 lb/ft of torque from a 360 becomes almost 700 lb/ft, while the 225 lb/ft from the 4.0 only becomes 315.
> > >
> > > Someone once told me that the AW-4 should have a 2400-2500 stall, but that's not so -- it starts to overcome the brakes at 2000 unless you really have your foot down hard, then the engine is really straining. Stall is more like 1500-1800. 2400-2500 is about right for a TF though. The AW-4 is a high efficiency auto, so it's not so good for performance. I don't know of anyone with someting like a 998 behind a 4.0L except for a few people with 4x4s. Would be interesting to see what the 4.0 does behind one with a higher stall and more torque multiplication.
> 
> =============================================================
> Posted by wixList Archiver -- http://www.amxfiles.com/wixlist


=============================================================
Posted by wixList Archiver -- http://www.amxfiles.com/wixlist