Heads, blocks, and turbos

Huw Powell audi at humanspeakers.com
Mon Feb 19 20:23:49 EST 2007


> Fun, maybe, if you can get it to work. The problem with 10V to 20V
> configurations is compression ratios. For instance, putting a naturally
> aspirated 20V head on a JT yeilds about 6:1 compression.

Right... the people putting 20v heads on 10v blocks are using the NF/NG 
block, which is a 10:1 engine, the 20v head drops it to what, 7.5-8 or 
so, which is where they want it.  I forget why they aren;t just using 
the whole 20v engine, but I suspect motorgeek.com (hope I got that 
right) would be the place to sneak a peak at their reasons.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/


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