What oil is best? and what ratio?

[Keith Gandy]

That's what Treemonkey was saying forever. In all the stuff I've tested it's been true.

Ya I guess one has to have a basic knowledge of 2 stroke principles and combustion process before it makes sense that high octane isnt the same concept in saws as in a vehicle. The response time to detonate isnt there even with our timing advanced? I heard Jason say he took his 066 out to .050 off the key and it doesnt detonate at 240psi compression??!! 87 for me. The quality of say VP93 vs pump 87 efree does linger in my mind though

 

[Moparmyway]

800 off-road?

I think it was R50. He'll have to answer for sure.

How much fuel through that one?

It is both
I mix 800 off road and R50 together (50/50) running 5oz per gallon
I really am not sure how much time was on it or how many gallons anymore.
I did know, but I have forgotten since then.
I run a few 90cc saws at the same time, but IIRC, thats well over 5 gallons, probably closer to 10 gallons with that mix in that saw

I did a little work to the cylinder while it was apart ............. she gained some

 

[Keith Gandy]

It is both
I mix 800 off road and R50 together (50/50) running 5oz per gallon
I really am not sure how much time was on it or how many gallons anymore.
I did know, but I have forgotten since then.
I run a few 90cc saws at the same time, but IIRC, thats well over 5 gallons, probably closer to 10 gallons with that mix in that saw

I did a little work to the cylinder while it was apart ............. she gained some

Mopar would u say the mtronics runs lean or rich on topend? That buildup and wash looks about spot on to me?

 

[Moparmyway]

Mopar would u say the mtronics runs lean or rich on topend? That buildup and wash looks about spot on to me?

She usually starts out fat, then runs strong,
In this video she was temporarily wearing an 8 tooth .404 setup
Her normal life is 36" with a 7 tooth and square filed .404

So whenever I start a cut, she is allways fat due to the m-tronics remembering her last few cut parameters

 

[jmssaws]

I've seen one saw that was detonating and it was stock.

 

[Keith Gandy]

She usually starts out fat, then runs strong,
In this video she was temporarily wearing an 8 tooth .404 setup
Her normal life is 36" with a 7 tooth and square filed .404

So whenever I start a cut, she is allways fat due to the m-tronics remembering her last few cut parameters

Looks very strong!! John has a new 661r behind my back in the shop at all times that haunts me!!! He hasnt put fuel in her much less ported but knowin him he is reading/learning and comin up with a plan of attack on her!!! Lol!!

 

[Keith Gandy]

I've seen one saw that was detonating and it was stock.

Why was it detonating Jason?

 

[Moparmyway]

Looks very strong!! John has a new 661r behind my back in the shop at all times that haunts me!!! He hasnt put fuel in her much less ported but knowin him he is reading/learning and comin up with a plan of attack on her!!! Lol!!

I have got a good plan for this one too, I just need another cylinder.
I like the aftermarket one that Randy posted about ............ I might grab one soon

 

[jmssaws]

Why was it detonating Jason?

I don't know, it was a stock ms 460 that I ported. Low hour saw also.

 

[mdavlee]

It is both
I mix 800 off road and R50 together (50/50) running 5oz per gallon
I really am not sure how much time was on it or how many gallons anymore.
I did know, but I have forgotten since then.
I run a few 90cc saws at the same time, but IIRC, thats well over 5 gallons, probably closer to 10 gallons with that mix in that saw

I did a little work to the cylinder while it was apart ............. she gained some

I'll look and see if it was in the message with the pictures. Hopefully this afternoon I'll get to make a few more cuts with the HP2 at 20:1 or whatever it ended up at. Might get 1 or 2 more 5' long cuts.

 

[jmssaws]

I don't know, it was a stock ms 460 that I ported. Low hour saw also.

There was 5 460's that were bought the same day and used very little, ported all of them and that was the only one that was, the original piston in my red light 066 has the crown eat off of it also but those are the only ones I've ever seen.

 

[Moparmyway]

There was 5 460's that were bought the same day and used very little, ported all of them and that was the only one that was, the original piston in my red light 066 has the crown eat off of it also but those are the only ones I've ever seen.

They all blend after a while

 

[mdavlee]

It's hard to keep up with them after a while. You get 5 or 10 of each saw come and gone.

 

[mdavlee]

Red bull talked with klotz and super is good down to -20° or lower.

 

[jmssaws]

I run the klotz super at 40:1 and when I tear one down everything is covered in oil.

 

[junkman]

I run the klotz super at 40:1 and when I tear one down everything is covered in oil.

Question ? If everything is covered in wet oil ,and oil pooling in the bottom of case ,would that be not combusting all the oil efficiently ?

 

[Moparmyway]

Question ? If everything is covered in wet oil ,and oil pooling in the bottom of case ,would that be not combusting all the oil efficiently ?

Oil in the case is not oil in the combustion chamber

 

[Moparmyway]

The fuel begins evaporating as soon as it enters the carb throat and continues to evaporate, leaving oil behind, throughout the crankcase and into the combustion chamber .............. the whole time it is evaporating and leaving oil.

Most of the oil that makes its way to the combustion chamber is burned off, the oil that is not burned is exhausted out the muffler. This evidence is seen when you witness wetness at the muffler exit and usually on any seams or flanges

 

[Mastermind]

I don't know, it was a stock ms 460 that I ported. Low hour saw also.

I'll take bad gas for 500 Alex.

 

[jmssaws]

I'll take bad gas for 500 Alex.

You are correct!