What oil is best? and what ratio?

[Keith Gandy]

OK. Thanks for your insight Keith. I appreciate it.

RI for what its worth my buddy Ron660 has been using 800t for 4 yrs in his ported MMWS660 tuned rich and his piston stays spotless. He may be losing alil performance but he likes the internals clean and is very satified. Guess its what one likes. I like Red Armor because it combust and runs well but stays clean plus its red and a OPE oil

 

[X 66 stang347 X]

Doesn't KL-200 combust at a lower temp

 

[RI Chevy]

LOL. OK. Thanks. [emoji106]

 

[Keith Gandy]

Thinking outloud here for a moment. Are both of you stating that one could run a 32:1 mix and tune slightly leaner and still get combustion with a dry piston top?
I guess what I am asking is, is the tune more important than the ratio? Can one tune the saw for higher RPM'S with a lower mix ratio (32:1 vs 50:1), and have equally running saws?
Or is it the oils combustion qualities that are more important?

I think the idea is to use a oil at a lower ratio for more bottomend lubrication in a ported saw but an oil that will still combust at that ratio. Some oils combust more readily than others

 

[Keith Gandy]

Doesn't KL-200 combust at a lower temp

From what Ive seen it combust very well

 

[RI Chevy]

I think the idea is to use a oil at a lower ratio for more bottomend lubrication in a ported saw but an oil that will still combust at that ratio. Some oils combust more readily than others

That is basically what I was looking for. [emoji106]
Keeping bottom end lubed, and getting the top end to fire clean and lubed at the same time.
Now, finding that magic oil. Lol

 

[bikemike]

Well I am very content with amsoil Saber 100.1. I ran a batch at 40.1 and it takes a bit to clean out. so I'm on 50.1 now with my saws and been a good mix for my top handle that doesn't always get a chance to stay hot and cleaned out. and the oh34 av super runs great on it to soft or hard wood. Last hard wood tree job I did with both the saws was a big locust and I burnt every bit of 3 tanks felling, stump cut, and buck into firewood length. No nasty smells or headache,

 

[Keith Gandy]

Doesn't KL-200 combust at a lower temp

If I was strictly racing or timing cuts KL200 would be my pick. Mdavlee and Cut4Fun has used kl200 for thoso applications and can testify for it

 

[Keith Gandy]

That is basically what I was looking for. [emoji106]
Keeping bottom end lubed, and getting the top end to fire clean and lubed at the same time.
Now, finding that magic oil. Lol

 

[RI Chevy]

Lol. Next on my trial list I guess. Lol.
Now, what ratio? 40:1?

 

[Keith Gandy]

Lol. Next on my trial list I guesd. Lol.
Now, what ratio? 40:1?

Thats what I run it at RI. Should be plenty on a hot summer day in bigwood

 

[CR500]

Thinking outloud here for a moment. Are both of you stating that one could run a 32:1 mix and tune slightly leaner and still get combustion with a dry piston top?
I guess what I am asking is, is the tune more important than the ratio? Can one tune the saw for higher RPM'S with a lower mix ratio (32:1 vs 50:1), and have equally running saws?
Or is it the oils combustion qualities that are more important?

Tune and load are everything.

A saw could survive at 100:1 with the right chain and tune.

Technically at 32:1 you have to richen the saw due to it being leaner.

As for one ratio being faster Redbull has shown that some oils are faster at lower ratios like 40-45:1. Some oils do act different


I remember at Stihl silver school a dealer showed us pictures of his 261 ran on nothing but Ultra and it was absolutely spotless.

I was running bike oils and it turned into a friendly debate about how carbon is actually important on the crown

Some carbon is needed IMO

Sent from my non internal combustion device.

 

[RI Chevy]

Interesting.

 

[mdavlee]

800 when burnt makes a mess on the crown like all the other oils. It does take a good load like milling to do it.

 

[X 66 stang347 X]

This is a Zenoah Pro Mod Engine only 27.4cc with a 2mm Stroker crank. I run 18:1 benol but it's a high rpm engine. It dyno's around 6.5hp at 17,000. The tune changes depending on air and water temp. Here's a test run with the new carb I had milled.

 

[Keith Gandy]

This is a Zenoah Pro Mod Engine only 27.4cc with a 2mm Stroker crank. I run 18:1 benol but it's a high rpm engine. It dyno's around 6.5hp at 17,000. The tune changes depending on air and water temp. Here's a test run with the new carb I had milled.

Whoa!! Thats super cool !!!

 

[X 66 stang347 X]

It's fun. You can hear it for miles. The way you tune the pipe is sliding it back and forth on the header. It's has to get up on the pipe at the right rpm to make the most power. I need a bigger prop in that vid. Only a couple inches of the hull needs to touch the water and that prop wasn't lifting.

 

[junkman]

Thinking outloud here for a moment. Are both of you stating that one could run a 32:1 mix and tune slightly leaner and still get combustion with a dry piston top?
I guess what I am asking is, is the tune more important than the ratio? Can one tune the saw for higher RPM'S with a lower mix ratio (32:1 vs 50:1), and have equally running saws?
Or is it the oils combustion qualities that are more important?

If go from 40 to 32 to1 ,32 to 1 will raise rpm a little because it is leaner,assuming you had perfect tune to start with will have to richen the H screw a little to get where you were.

 

[bikemike]

This is a Zenoah Pro Mod Engine only 27.4cc with a 2mm Stroker crank. I run 18:1 benol but it's a high rpm engine. It dyno's around 6.5hp at 17,000. The tune changes depending on air and water temp. Here's a test run with the new carb I had milled.

Had fun with those but I don't miss them too much

 

[Keith Gandy]

Had fun with those but I don't miss them too much

Bet they r super $$$$??