Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
VanagonEuroVan
Subject:Re: � � � Re: Questions re. A udi 3A engine swap (after searching the arc hives)
From:Frank Grunthaner
Date:Thu, 6 May 2004 02:31:32 EDT

In a message dated 5/5/04 11:11:09 PM, warmerwagen@HOTMAIL.COM writes:

> With my present combination of trans and engine I get about 19-23�� mpg.
> 
> I think it would be less with a Diesel trans.
> 
Robert,

I'll still disagree. I've now run transmissions both in preparation for 
putting in the Turbo Audi. I stand with the numbers. You pay for the power used. Of 
course the main variable is fuel economy it the interconnection of the base 
of the reptilian brain with the control foot. Expending available thrust is 
fun. As to the clutch, for the larger diameter clutch to have more towing 
capacity, its contact area must exceed the gear reduction comparison in final drive 
ratio. At which point the trans is well on its way to toast.

The ABA block with 1.8 head has a much poorer flow efficiency than the 3A 
with the 3A 8V head. At that point, the ABA block only has the bore/stroke ratio 
going for it, if it has the squirters and forged crank.

Frank Grunthaner

Frank Grunthaner

Have something to add on this topic today? Revive this thread in the forum »