Headgasket vs. pistons and rods...
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Headgasket vs. pistons and rods...
I was just wondering, if I got a turbo kit on my R, could I just use a 9:1 compression headgasket instead of pistons? What are the advantages and disadvantages of both?
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Re: Headgasket vs. pistons and rods... (1 FAST R)
I was thinking about a head gasket as well...but these two quotes from Corky Bell's book: "Maximum Boost" have made me wary
I advice anyone considering a turbo system, or anyone that already has a turbo on their car to get this book. It explains everything you need to know, simply and effectivly. 
[Modified by HXMan, 2:34 AM 1/13/2002]
(Assuming low comp head gasket installed) Consider "squish volume" sacred and do not tamper. It is possible to err so badly in removing the squish that a resulting 7-to-1 compression ratio may ping worse than a 9-to-1 with proper squish. Clearly then, choices for reducing compression ratio are limited to opening up selected parts of the head side of the chamber, installing a new piston with a dish in the center, or remachining the original piston to create a dish.
Approaches to lowering the compression ratio that do not work are thinner head gaskets and shorter connecting rods.
[Modified by HXMan, 2:34 AM 1/13/2002]
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Re: Headgasket vs. pistons and rods... (HXMan)
(Assuming low comp head gasket installed) Consider "squish volume" sacred and do not tamper. It is possible to err so badly in removing the squish that a resulting 7-to-1 compression ratio may ping worse than a 9-to-1 with proper squish. Clearly then, choices for reducing compression ratio are limited to opening up selected parts of the head side of the chamber, installing a new piston with a dish in the center, or remachining the original piston to create a dish.
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