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Old 04-07-2009, 04:21 PM   #1
severous01
 
Drives: 2008 yaris, stripped, red
Join Date: Jan 2009
Location: SE Texas
Posts: 977
shaving the head down

i was wondering if anyone knew exactly how much material i can take off the head surface without destroying pistons and valves...

i see all this talk about using camry or prius pistons to increase compression and all this other hype about turbos and stuff...but it seems way easier to me to increase compression, get a custom tune for it and start buying premium or midgrade for the performance boost by taking out space between the head and piston. i had an old 4cyl mustang that i warped the head on and i had to shave it...long story short i boosted compression ratio due to wrong gasket used in repair and i had to run midgrade to keep from pinging...the car was a 4cyl and would keep up with the 5.0's all day long, and i got better mileage knockin around 43 average in a 93 sports car.

any way...goin from 8:1 to 10:1 would net almost 20 hp theoretically and would be much better than all these clips n stuff i see of superchargers and turbos. and it would be much more reliable.

tighter squeeze, bigger bang. there's no other cheaper option for more power (from what i see any way)
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