first off is it worth even trying? im planing on turboing my z6 in my cx. i have a z6 in it now with my cx tranny. its slow off the line but it takes off at 3600. i beat a 92 si with it. n e ways if i put a cx crank in it ,it will lower the comp.and at the same time have better revs. i will have absolutly no torque but once boost kicks in it should be pretty crazy. is it even possible to put in tho?and im also about to rebuild all of it over the winter. im balancing and p+p. ne little tips that i should be doing while the rebuild?should i do n e nitrating,meleniting,or cryogenics. n e info helps. if its a stupid idea with that crank tho let me no

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seerx &raquo;</TD></TR><TR><TD CLASS="quote">if its a stupid idea with that crank tho let me no</TD></TR></TABLE>

Yes, it's a stupid idea (not trying to be mean). If you're going to lower the compression, do it the right way, use lower compression pistons. And the amount of compression lost with the d15 crank would be so extreme that I don't think any practical turbo setup would be able to properly compensate for it. What I think you're forgetting is that you will also be losing displacement, and with it potential for horsepower. If I were you, I'd get ahold of some inexpensive low compression pistons and a decent set of rods. Then I'd piece a turbo kit together from junkyard parts and have lots of fun.

 

Actually, what he is talking about is a very effective way for stroking or de-stoking the motor, to achieve a safer higher redline. It is an established engine building trick, not a hack, or rig-job.

Now as far as weather or not this particular application will work, I dunno.
-PHiZ

 

Not gonna happen. The main and rod journals are much smaller in diameter.