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Old 03-23-2012, 08:48 AM   #99 (permalink)
Nissan370
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Join Date: Feb 2011
Location: Baltimore
Posts: 431
Drives: 2009 ST BLK 370Z
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Ok so a set back.. I went to have the water/meth tune done and we did a base line run before the new tune a/f looked good no knocking but hp on the top dropped off by 70hp

On a compression test 2 of the cylinders on the driver side were low we were thinking head gaskets ok hoping head gasket

So the motor is out of the car and taken apart looks like a piston ring was casing blow-by so I am forced to build the motor with a .020 over bore.


Going to drop the compression by 1 point to a 10.5-10 cr

Man I was not rdy for this good thing I have my zx10r as a back up


Down side I have to drop another 6k to have this done good news is I will be sitting on a forged motor good for so serious power.

Ps : and yes the plan is to use the on/off switch to switch between tunes
One aggressive tune for water/meth and the other with out w/m.
__________________
370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

Last edited by Nissan370; 03-23-2012 at 09:04 AM.
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