I'm curently using Castol 927 premix oil at 40:1, how high can I go before I need to worry about any damage on the engine? Is this true, the higher you go on your ratio the faster your top end will go out? I usually ride the dune and do some dragging, what ratio should I use to get max horse power with out doing any damage?

Thanks

 

I run 40:1 as well as most of the people i know. Some guys on banshee HQ run the 100:1 amsoil at 80:1 but i would not reccomend it. You could get away with 50:1 with castrol but it will wear your engine a little more. Yes is does VERY SLIGHTLY increase your top end, im talking like .5mph. Remember changing your mix ratio means changing your jetting. Stick with 40:1 and get some upgrades. Welcome to the forums.

 

i run 40:1 klotz- thats as high as im going to go. to many mods to try and get a couple of ponies from your gas mixure.

 

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I also us Castol927 im running 32.1..But im running 101 fuel too..

 

YOUR RUNNING 101 FUEL ON A STOCK MOTOR!!!! why are you doing that mr. shrader?????? sounds like your just throwing money away. i run 93 on my stock motor and it runs fine.

 

Who said its ALL stock?

[img]i/expressions/face-icon-small-tongue.gif[/img]

 

I was wondering where he got the "stock" idea from too..[img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img]

 

so... the truth comes out. i know theres more stuff on there other then some drag pipes.hmm.... what are you running 170-190 compression????? well.... mines missing half the bolts !!! so.. i say there's about 5 pounds there.

 

I use Yamalube at 32:1 its safe I never have to worry if Im getting proper lubrication. There are better oils out there tested at 100:1 and alot of people run that at 80:1 but I would never do that unless I had a bike strictly for drag racing and I planed on changing the rings every few months.