Where is the engine code??

[drew at scirocco.cs.uoguelph.ca (Drew)]

On Thu, 2004-08-19 at 12:20, SequoiaGLX@twcny.rr.com wrote:
> I guess I didn't realize that head was higher compression, I put a head on my JH block emporarily from an '85 GTI (hydro) and it seemed to run pretty strong with my standard CIS setup.  I did notice I had to run 93 octane in it or it would ping like a jackhammer but it had all kinds of power.  I have had no oiling issues and premium fuel takes care of the knock.  I thought initially it was because the head was resurfaced and they shaved a chunk off but I guess not.  It seems to like about 8? advance at idle 2? ahead of the stock 6?.


The increased compression ratio between the JH and the HT/RD comes from
the pistons, not the head - the combustion chamber volume of the JH head
and the HT/RD head is the same.

It is possible, however that the HT/RD head you installed on your JH had
been shaved by a previous owner, which would increase the CR of the
engine.

Drew


> John K. Gates
> --
> '97 Jetta GLX - daily driver
> '85 Scirocco Flash Silver, waiting for my new house/shop for a complete
> teardown/buildup sometime soon...

-- 
 
84 Wolfsburg Ed. Scirocco GTD     http://scirocco.cs.uoguelph.ca/gtd
89 Audi 200 Turbo Quattro Avant
94 A3 Golf GL TurboDiesel, 99 A3 Jetta GL TDI
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