Cam

[xtreemnoise]

Anybody go with a hotter cam with no bore or stroke increase? Thinking while I have my bodywork off to drop a cam in. Have aftermarket pipe & filter now.

 

[yamarider]

Yeah, people do it all the time. It won't give you the full effect until you at least get a high compression piston in there, but you'll still feel a difference. Just don't go with a real aggressive one, I'd go with a .390 Webcam and the heavy springs, should give you a nice all around gain. With the stock compression a more aggressive cam will really kill your bottom end power.

 

[xtreemnoise]

Was just looking at the Web cam site don't really have the cash to do a full blown upgrade now only working temp jobs. Was trying to avoid pulling head as well but looks like if your going to do it right.........

 

[DeadLastRacing]

Yeah, go with the .390. I'm kinda wishin I did. Might decide to swap mine out here after a bit.

 

[Deuce]

Now with 12:1 do you need to start running race fuel? I know 12.5 in a yz is still ok for premium, but this isnt a yz

 

[yamarider]

Now with 12:1 do you need to start running race fuel? I know 12.5 in a yz is still ok for premium, but this isnt a yz

It's debatable, 93 octane will run on a 12:1 but in my opinion they run hotter than they should that way, they definitely run better with a mix of 93 and 100 or straight 100. 11:1 is the highest I would go with straight 93.

 

[DeadLastRacing]

I run my 11:1 on 93 but thinking of switching to cam2. Found out that there is a local station that sells it.

 

[drtfn]

I run a mix of 93 and turbo blue in 4ooex. It has 11:5-1 compression. we use a 5gal race can and use 21/2 gals of 93 and 21/2 turbo blue and it runs awesome.