I talked to Gary about my question before his kit came out.. And he only told me all the power I would lose and that an he COULD do it if I really really wanted. I explained I run 90-93 gas and I just can go higher on compression. He told me to carey fuel additives.. I did not really like it.. He really avoided my questions also. Otherwise I would have done the 720 over my stage II. It was the compression question he would not answer...

 

What does the kit include? and what does it cost? what are the Details?

What if I am already a stage II? do I just need the jug/head/piston?
DOes he take your old stuff? or what the scoop.

 

Thanks Big Daddy331.

Fuel additives are total junk. When they say they raise your octane by 5 points it means this.

93octane + additive = 93.5


All he has to do is face a small amount off the top of the piston to reduce total positive dome cc's to an acceptable compression ratio for pump gas. Or offer a completely different lower compression ratio piston.


MrHorsepower

 

MisterHP check your PM.. I'm in need of your services once again....your a hard guy to get a hold of!!!

Even if the comrpession is 12:5.1 the compression gives you all around power. I can't wait to eat my YFZ buddy and give a run to my Stage III friend.

 

race gas may not be as hard to find as you think. i never see it at any gas stations well actually one, but every dealer has the stuff and the more you ask the more you find, if there is a race track anywhere close there will be race gas.

 

well wen i talked to sam coe a lil while back he said he'd machine the piston for me for $25 to make it a 10.8 to run it safely on 91, altho i'll never buy one of his products, but i thought i'd just mention that

 

Another vote for the 720. I had a stage II before going to the 720 & it really confirmed the old addage of no replacement for displacement. Simply more power everywhere! I have been using 100 octane Sunoco GT 100 with no problems at all, also only $3.69 per gal. here in West, by God, Virginia! I highly recomend the 720 over stock bore setups although you can get a good running stage III close to a 720 on flat ground. I prefer the torque of the 720 to match my riding style, with stock valves (for now) Web 110 cams & TM 45 with pump activated & tuned properly you can't imagine how much grunt this thing has. Oh yeah, she'll run pretty damn strong on top too!

 

With all this talk about race gas and compression, I was wondering how Yamaha can sell at least three of their newest bikes off the show room floor running 11.9 and 12.4 to 1 compression. The YFZ is 11.9 and the R-1/6 is 12.4

Can they get away with this by detuning the ignition module or are they magic? It almost appears we could go to our stock ignition curve and run 91-93 octane pretty safely with a 12.5 to 1 ratio.

jbt