HEAD KIT
02-21-2008, 08:59 PM
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HEAD KIT
does any one make a head kit with interchangeable dome's for a 260 pum so you can change the compression ratio so you could run vp 110 octane fuel? also whats the stock dome on a pum? is it 13-1 if so a dome like 15-1 would able us to run higher octane fuels.
02-22-2008, 04:02 AM
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RE: HEAD KIT
Depending on your port timing your zenoah can be from about 9;1 up to 13;1
so you really dont need to have changable head dome
Raising compression you will not notice a huge increase of power it brings torque up slightly but also increases heat from higher combustion temps
Plus to run a high octane fuel you will need to have your static timing adjustable (more timing)to reap the benefits as the higher the octane the slower the ignition an burn rate
so you really dont need to have changable head dome
Raising compression you will not notice a huge increase of power it brings torque up slightly but also increases heat from higher combustion temps
Plus to run a high octane fuel you will need to have your static timing adjustable (more timing)to reap the benefits as the higher the octane the slower the ignition an burn rate
