_JOE_

~SPONSOR~
May 10, 2007
4,697
3
76GMC1500 said:
Have it ported for race gas.
I didnt know porting was fuel specific. I thought the head mods generally performed along with porting were what required race fuel(i.e. higher compression).
 

76GMC1500

Uhhh...
Oct 19, 2006
2,142
1
_JOE_ said:
I didnt know porting was fuel specific. I thought the head mods generally performed along with porting were what required race fuel(i.e. higher compression).

It can be, changing the position of the ports in the cylinder changes the effective compression ratio. It can also change the volumetric efficiency which has an effect on compression pressures. I also tend to glob cylinder and cylinder head work in with porting. Those can have huge effects on octane requirements.
 

whenfoxforks-ruled

Old MX Racer
~SPONSOR~
Oct 19, 2006
8,129
2
Merrillville,Indiana
Call him during business hours,Telephone: 1-630-825-5645.If you want to go all out or not!Some of the 125's vary on how big and if the cases are needed,say bye-bye to 250f's.They are running the snot out of these mods in europe.
 
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