[urq] RE : WR Aluminum Engine

Louis-Alain Richard larichard at plguide.com
Wed Jun 13 12:19:18 EDT 2007

The BMW F1 1500cc 4 cylinders blocks of the early 80's were supposed to be
stock engines that were used for a few months in a road car, because they
were supposed to be less "stressed" after all the heat cycling... A newly
cast aluminum block can show cracks or air pockets in the metal, and using
the blocks in a road car would be a good way to discard the bad ones.
Remember that these monsters were north of 1000 hp during qualifications.

That's what I read in a magazine, don't remember which one...

Is your engine steel-sleeved ?


> -----Message d'origine-----
> I'd be curious about the history of the alum blocks in the street cars.
> Putting some of them in road cars for testing for the rally machines
> does not make sense to me at all.  I would think they would put some in
> road cars maybe for homologation.  And road cars don't see near the
> abuse of the rally cars - so I would think road cars wouldn't be a good
> testbed.  Vice verse makes more sense IMO.  And would an onwer really
> be happy about their car sitting for who knows how long while their motor
> is crated back to Germany?
> Very cool block - wodul love to hear if you can fel difference in
> handling.  Anyone of the historians - chime in on history.
> Brandon
> '84 ur

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