Megan Journal

Megan370z · 11-21-2012, 06:38 AM

Quote:

Originally Posted by Boost_lee

Any pics of the block with the HR pistons installed?
Do the HR pistons have a shorter piston height? (hard to tell from the pics but it kinda looks that way)
If so, what do you think the overall CR would be?

nice work btw

when I took the picture both piston were hold by the same wrist pin.
the top base of the piston looked to be the same height.

I would say the CR should remain pretty much the same as the VHR engine...
the VHR piston are more flat with 2 valve relief
the HR piston have a bit of a dome with 4 valve relief
my guesstimate would be 10.8:1
unless a known engine builder correct me on this !

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