west coast head / domes ?
- Thread starter whennotsailing
- Start date
- Location
- Amherst NH
WJ sounds like its a wetjet head from the Kraze model with westcoast parts. I believe thise heads were rated at 180 psi.
Not 100% possitive on my answer
Not 100% possitive on my answer
Cool thx. I'll wait for more to confirm. Thoughts on what plugs to be running and torque spec?
- Location
- Amherst NH
Br8es
stock torque specs.
stock torque specs.
Hijacking my own thread.... Guy was running b8hs plugs in this head. What's the difference?
- Location
- Denver, NC
"R" is a resistor plug, HS is just shorter than ES
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Sent from my iPhone using Tapatalk
- Location
- Amherst NH
ES is the correct plug. Its longer . Westcoast head is thicker than the stock head.
- Location
- Minnesota
I think the 9103 is the dome volume 9103 = 33cc not 100% sure on this. The west coast heads use the stock style cylinder head gasket @ 0.052 thick this will give you 6cc of volume you will need to add to the volume of the West Coast head so if you do have 33cc dome + 6cc for the stock style gasket you have 39cc of dome volume a stock 701 has 34cc domes + 6cc for the stock head gasket = 40cc total dome volume. Compression would be pretty close to a stock 701.
So what head gasket can I go to to boost compression a bit ? Sounds like that'd be the answer. I need to finish up the ski and get it test fired and then do a compression test I suppose... I just figured someone would know right off the bat what it was.
- Location
- Minnesota
Not sure they are even available in any other thickness other than the stock gasket size. The way to change the compression is not with the gasket so much but with the domes. I have a west coast head on my Blaster that has 29cc domes + the stock gasket for a total of 35cc of combustion chamber volume. This would be the same as or close to a 35cc ADA head however the ADA head does not use the stock gasket it has O-Rings. I am sitting at about 175 psi of compression with my 701 set up.
- Location
- Minnesota
It will run fine the way you have it but my guess is the compression will be pretty close to stock.
never knew there was a difference 61x to 62t in gaskets. Anyone have a pic of each gasket side by side ? This is going on a 61x jug.