Re: IML: overdrive torqueflite and stall speed

["Rob P" <fristpenny@xxxxxxxxxxx>]

I expressed interest in adding an o/d to my "feeble" small block 80's 
Imperials.  First of all, there is no reason it would be a mistake.  As long 
as you lower the rear gear you will end up with the best of both worlds as 
far as mpg and accelleration.  I was the one that brought up the highway 
gears and stated I would be changing them.  BTW, my '83 is a small block car 
and probably has more hp than 95% of the Imperials out there-it's got a 
Magnum 360.  I understand where you're coming from, but you lose nothing by 
adding the o/d since the lower gears are identical just with the addition of 
4th.

Rob

> From: sosmi@xxxxxxxxxxx
> Reply-To: mailing-list@xxxxxxxxxxxxxxxx
> To: mailing-list@xxxxxxxxxxxxxxxx
> Subject: Re: IML: overdrive torqueflite and stall speed
> Date: Thu, 14 Dec 2006 01:12:15 +0000
>
> Interesting, but somewhat misleading. First the Lock-up converters do not 
> retrofit to 727's, the trans  would not be slipping, in over-drive only the 
> torque converter, and that amount of slippage is NEVER at stall speed.It 
> would never be as much, as a car, or truck pulling a boat, or travel 
> trailer.Thats why you add trans coolers.No doubt adding the over-drive to 
> an 80's Imp would be a mistake, they were already feeble enough.Most 
> members that expressed interest in  OD. have big block motors, they  make 
> peak torque at 2000-2600 rpm. Peak torque, is  always the best rpm to run 
> an engine at, its usually most fuel efficient too. Ya'll have a nice day, 
> Dave

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