[Fot] quench clearance

[fubog1]

 If you have good race rods and all of the clearances are to spec, you could pop it up a few thou but I wouldn't go any less than .030.
Yes you can run it a little tighter but that's the point where there won't be any carbon buildup on top of the piston, and all it takes is a missed-shift to turn it into junk.

Considering that the gasket may compress a few thou, depending on what gasket you're using, you'll likely be fine with 0-deck, as you're planning.
Glen

 

 

-----Original Message-----
From: don--- via Fot <fot at autox.team.net>
To: fot <fot at autox.team.net>
Sent: Sun, Jul 29, 2018 7:27 pm
Subject: [Fot] quench clearance


Amici, 


Building a small journal 1296cc Spitfire.
Running Venolia’s over Carrillos
been know to go to 8500K rpm (occasionally).


Going to have the block/pistons decked to zero. (can someone tell me a better way to say this?)
Anyway, I realized that my quench clearance would be the crush thickness of the head gasket.
.035 ~.0385
In the Comp Prep manual it states .025 as plenty of gap. 




Just want to see what y’all say.
Thanks, 
Don




DON COUCH PHOTOGRAPHY
www.dcphotos.com
(512)-680-3540



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