2003LimitedBanshee Posted June 7, 2006 Report Share Posted June 7, 2006 The simple fact is that you only need to run just enough oil to provide the necessary lubrication to the cylinder walls, and the crank bearings; beyond that you are hurting performance. I would have to sincerely contest the McCullough info as it was presented above. If the cylinder to piston gap, as well as the ring end gap are set appropriately, you should not need to run a richer oil/fuel ratio to gain performance. You have to consider the performance differences between a chainsaw (or weedeater, whatever they were reportedly claiming this on), and a performance two-stroke (be it dirtbike, Banshee or otherwise). There are no combustion benefits present in oil, thus the more oil, ie. less fuel the less power the engine can make. I personally have run Golden Spectro at 48:1 for the past two seasons, and my compression psi is within 5 psi of what is expected for a fresh bore, stock bore/stroke etc. In addition I plan on switching to Amsoil at at least 80:1. However, it is true that at some point you will sacrifice some longevity at the price of added performance, just not anywhere near the difference between 20:1 vs. 32:1. A good rule of thumb is to pay attention to what the oil manufacturer recommends based on usage. If they test it out fine at 50:1, they won't be selling you a bum-rap, they figure it will live just fine at that ratio. Quote Link to comment Share on other sites More sharing options...
night Posted June 7, 2006 Author Report Share Posted June 7, 2006 WAAOOOOOWWWW LOOK AT ALL THE GREAT REPLIES I GOT, THANKS A LOT GUYS. BELOW IS MY FAVOURITE QUOTE OF ALL: VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV VVVVVVVVVVVVVVVVVVVVVVVVVVVVVV VVVVVVVVVVVVVVVVVVV VVVVVVVVVVVV VVVVVVVV VVVV VVV VV V There was a whitepaper published by McCullough some time back regarding oil/fuel ratios. They tested fuels mixed 'oil-rich' to the point of plug failure and found that the more oil they used, the more power they got. That was due to the better sealing properties (piston-cylinder) of the higher volumes of oil used. ^ ^^ ^^^ ^^^^ ^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Quote Link to comment Share on other sites More sharing options...
2003LimitedBanshee Posted June 7, 2006 Report Share Posted June 7, 2006 WAAOOOOOWWWW LOOK AT ALL THE GREAT REPLIES I GOT, THANKS A LOT GUYS. BELOW IS MY FAVOURITE QUOTE OF ALL: VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV VVVVVVVVVVVVVVVVVVVVVVVVVVVVVV VVVVVVVVVVVVVVVVVVV VVVVVVVVVVVV VVVVVVVV VVVV VVV VV V ^ ^^ ^^^ ^^^^ ^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Strap your quad to a dyno and make a pull with your oil mixed at 20:1; then strap it on again and make another pull with 32 or 40:1. I'll make a good wager on what you'll find. Quote Link to comment Share on other sites More sharing options...
rebelbanshee2 Posted June 7, 2006 Report Share Posted June 7, 2006 WAAOOOOOWWWW LOOK AT ALL THE GREAT REPLIES I GOT, THANKS A LOT GUYS. BELOW IS MY FAVOURITE QUOTE OF ALL: VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV VVVVVVVVVVVVVVVVVVVVVVVVVVVVVV VVVVVVVVVVVVVVVVVVV VVVVVVVVVVVV VVVVVVVV VVVV VVV VV V ^ ^^ ^^^ ^^^^ ^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ McCullough makes crappy chainsaws, not high performance atvs/dirtbikes Quote Link to comment Share on other sites More sharing options...
2003LimitedBanshee Posted June 8, 2006 Report Share Posted June 8, 2006 McCullough makes crappy chainsaws, not high performance atvs/dirtbikes Glad someone else noticed this also, guess it went unnoticed in my post. Quote Link to comment Share on other sites More sharing options...
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