What oil is best? and what ratio?

[Lightning Performance]

Any thoughts on leaded fuels? Also what about race gas? I can buy 100 octane non e at the pump. The other non-e is 87. Opposite ends of the spectrum lol. I burn the 100 in my race bike at 40:1 mixed with Amsoil Dominator. The four mix weed beater didn't like it to good. Thinking the high octane caused a cooling effect, therefore not burning all the oil, i.e. caused a lot of carbon build up. 87 mixed with Dominator at 50:1 burns clean, no issues.


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@Isaac

86-87 is borderline quality fuel for OPE after it has aged a month and/or been mixed. I personally run pump 89@10%E in muh work type equipment. If I ever have a doubt (for one reason or another) I run 90 or 91. Above that is a waste of money and power IMO. If your mixing fuel for storage go up to the 100 with stabilizer. That 87 will be fine in most things but why not bump it up with a splash of that 100. Lead reduces wear but it also poisons the air, the ground, the water and the user of small OPE. Lead or addative is not really needed unless your running old iron.

Does Lee run leaded in his monster classics, additives or nothing?

 

[RI Chevy]

Here is the thread.

http://opeforum.com/threads/octane-gas-test-661.1847/

Lightening Performance. You have to read this thread.

 

[KenJax Tree]

Like all his testing, there are too many variables

 

[Lightning Performance]

@ RI Chevy

I read some of it before.
What is your point? Speak up

 

[RI Chevy]

Well. You have to accept the fact that his testing is real life testing. His results are what they are. 87 and 89 octane produced more power and ran cooler than the higher octane fuels.

 

[KenJax Tree]

That was known before he tested them.

 

[Isaac]

@Isaac

86-87 is borderline quality fuel for OPE after it has aged a month and/or been mixed. I personally run pump 89@10%E in muh work type equipment. If I ever have a doubt (for one reason or another) I run 90 or 91. Above that is a waste of money and power IMO. If your mixing fuel for storage go up to the 100 with stabilizer. That 87 will be fine in most things but why not bump it up with a splash of that 100. Lead reduces wear but it also poisons the air, the ground, the water and the user of small OPE. Lead or addative is not really needed unless your running old iron.

Does Lee run leaded in his monster classics, additives or nothing?

The 100 I'm running is lead free. Lee who?


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[Adirondackstihl]

@Isaac
Does Lee run leaded in his monster classics, additives or nothing?

Yes
100LL

 

[RI Chevy]

That was known before he tested them.

OK. Then he just confirmed and proved the information then. Not necessarily a bad thing.

 

[bwalker]

@Isaac

86-87 is borderline quality fuel for OPE after it has aged a month and/or been mixed. I personally run pump 89@10%E in muh work type equipment. If I ever have a doubt (for one reason or another) I run 90 or 91. Above that is a waste of money and power IMO. If your mixing fuel for storage go up to the 100 with stabilizer. That 87 will be fine in most things but why not bump it up with a splash of that 100. Lead reduces wear but it also poisons the air, the ground, the water and the user of small OPE. Lead or addative is not really needed unless your running old iron.

Does Lee run leaded in his monster classics, additives or nothing?

Lead helps with valve seat wear, but won't do a thing for a two stroke.
I would worry much more about using non ethanol fuel than the octane number. The compression ratios of chainsaws are so low that even modded ones can run on 87.

 

[X 66 stang347 X]

To add to that. Doesn't the oil act like octane preventing detonation to a point

 

[porsche965]

Who makes the best highly refined mineral oil? OE or Cycle oil.

 

[bwalker]

Well. You have to accept the fact that his testing is real life testing. His results are what they are. 87 and 89 octane produced more power and ran cooler than the higher octane fuels.

IF you produce more power you will not run cooler.

 

[bwalker]

Who makes the best highly refined mineral oil? OE or Cycle oil.

Good luck finding one.

 

[bwalker]

To add to that. Doesn't the oil act like octane preventing detonation to a point

It can act that way or it can have the opposite effect. Irregardless a chainsaw, even a ported one doesn't have a high octane requirement.

 

[mdavlee]

Maxima is probably easiest to find

 

[RI Chevy]

IF you produce more power you will not run cooler.

Did he fabricate the results then? Or was the laser temp gauge off? One can equate faster cuts with more power from saw all other things maintaining equal. His test results are very eye opening. You have to admit that. Come on now.

 

[X 66 stang347 X]

What's the compression ratio of say a 066 around 200psi? Would being so small in bore and stroke cause it to be around 8.5:1 ? A chevy 350 would be over 10.5 or 11 with a small chamber head.

 

[mdavlee]

What's the compression ratio of say a 066 around 200psi? Would being so small in bore and stroke cause it to be around 8.5:1 ? A chevy 350 would be over 10.5 or 11 with a small chamber head.

I think treemonkey figured one at 7.8:1 or something like that. Let me Google and I'll see if I can figure one out

 

[mdavlee]