Is there something like a thin head gasket I could get somewherethat would raise the compression of the Mojave? I'm fixing on moving to the high country- so I'll need all the compression help I can get....... Thanks

 

domed piston and decking the head

 

Don't go overboard. The compression is 11:1 stock.

 

Hey Boob- deck the head how much, I can getmy hands on an 11:5 piston, I'd like to get 11.75:1 compression ultimately. Oh yeah-- and do your oversized valves make a difference, and what carburetor do you have? Thanks............

 

i couldnt tell you about the valves cause i had all my work done at the same time , i am running the stock carb with a dynojet kit and i dunno about how much to deck the head sorry

 

Alright listen to me.

Going from an 8:1 compression ratio to say 10 or 11:1 will improve power slightly.

Going from 11:1 to 11.5 or even 12:1 wont make much difference.

Once you get past 11:1 any power incease due to compression is neglagable.

Personally I don't think it's worth your time and money to increase the compression according to elevation.

 

Thanks for the illustration, chris- I'm looking for increase in compression because I'm fixin' to move to the high country, 7,000 ft+. Also I am going up in camshaft and so fourth. I just purchased a KLR CDI box which has no rev limiter, so at higher RPM's there is less time for making cylinder pressure and hence my reasoning for additional compression.[img]i/expressions/face-icon-small-happy.gif[/img]

 

compression will make a significant difference in power and the more you have the more power you will get, BUT when go past 11:1 you will need racing gas. Are sure sure you want to pay the price of race gas all the time. I did put a 11.5 wiseco in one of my mojaves and with a big cam that bleeds of pressure you can get by just barely with 93 octane pump gas.

 

Hmm-- that close to the edge on 11:1 as it is.... OK, 'addict- how about 11.5:1 piston, premium gas with a bottle of ctane booster thrown in- I'm goin' to the high country so I'm thinkin' that I should be able to get away with that, goin' with the .380 cams, but say I don't make it- can I add another gasket then to bring the compression down, or is there a think gasket out there? Thanks

 

octane booster will do nothing good for you.