Thread: Project 9.xx MKIV TT Supra
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Old 01-02-2011, 11:57 AM   #17
pwpanas
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Quote:
Originally Posted by 2jzFUN View Post
Well the short block is assembled and now I will be moving onto the process of building the head. The block consists of the following

-stock block
-stock crank
-ARP main studs
-ACL race main and rod bearings
-Custom 9.5:1 .020 over CP pistons with ceramic and oil shed coating
-Manley Turbo-tough rods oil shed coated

Photos to come.
Just curious - how did you decide on 9.5:1 as your CR? That's really pushing the edge as far as boostability...you'll likely have to run pure (i.e. don't blend with pump gas) VERY high octane race fuel ($$$$$$$$) if you're planning to make a lot of power from your boost.

Before you bolt on your head, consider a thicker-than-oem headgasket to help compensate for this (to me) overly-high CR.

Also, before you bolt on your head, consider modifying your block for 1/2" head studs OR be sure to get L19 studs. Oem-thickness regular ARP studs won't hold 40+ psi of boost.
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Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.

NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
Last edited by pwpanas; 01-02-2011 at 12:01 PM.
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