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what dome size to get?


2strokeBear

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I have 20cc domes on a stock motor, gauge says it is 168psi.

 

Approximate Cranking Compression

 

These pressures are estimates based on fresh stock bore, piston, porting, and deck height.

 

It is recommended to check your compression after installation.

 

Sea Level 1000' 2000' 3000' 4000' 5000'

18cc 197 178 171 170 165 145

19cc 183 167 160 158 152 137

20cc 169 156 149 146 140 129

21cc 156 145 138 134 128 121

stock 130 125 118 112 106 100

Edited by Snopczynski
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