So far the testing jives with the testing Gordon Jennings did 30 some years ago, which is what I expected.
661 Oil Test 32:1 vs 40:1 vs 50:1 ?
- Thread starter redbull660
- Start date
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BTW Redbull. You must be a real cull...not liking the smell of Klotz! Super techniplate smells even better than r50!
KenJax Tree
Terraphobic
The smell of Klotz makes nauseous in about 5 minutes.
The old Castrol snowmobile oil takes the cake for worst smelling oil in my book..smelled like a mix of burnt rubber and burnt plastic.
Trx250r180
Saw polisher
Ran a saw yesterday ,it was pig rich ,must be the damp cold air ,or does the cold make the oil thicker ?Redbull is going to have to retest all these oils now ,because the warm days and cold days tune differently 
Cooler air typically makes a saw run leaner. Humidity probably goes the other direction.
Trx250r180
Saw polisher
Maybe it was the 16 inch pico bar on the hybrid then ,it is tuned for a 32 with .404 ,the o26 would not start ,was not getting fuel for some reason ,so i put the baby bar on the hybrid to do the carpentry work .Or maybe was the dense air ,we been getting abnormal lots of rain lately .maybe it was not loading the saw enough to clean up in the cut ?
D
Deleted member 83629
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follow these guidelines if you are brave enough
nothing has died on me yet following this .
nothing has died on me yet following this .
KG441c
Keith
KG441c
Keith
Makes sense. We use to cut our lower unit fluid with 50% transmisson fluid in our outboard drag motors we raced and gained around 200rpm on the bigend
redbull660
Addicted to ArboristSite
k2 testing -
log 1 32:1 - 22.1 22.7
log 1 40:1 - 23.1 23.8
log2 32:1 - 18.7 18.5
log2 40:1 - 19.4 20.1
log3 was consistent for both cuts so they are comparable
log3 32:1 - 11.2 11.0 11.2 10.9
log3 40:1 - 11.3 11.5 12.3 11.9
Obviously 40:1 was much slower so I didn't even bother with 45 or 50:1.
I also cut with 32:1 and 40:1 yamalube 2r. pretty obvious that 32:1 was better. So instead of doing an un-needed 2r test. I set up for tomorrow.
So it'll be
R50 vs Hp2 vs 2R vs K2 all 32:1 ...
log 1 32:1 - 22.1 22.7
log 1 40:1 - 23.1 23.8
log2 32:1 - 18.7 18.5
log2 40:1 - 19.4 20.1
log3 was consistent for both cuts so they are comparable
log3 32:1 - 11.2 11.0 11.2 10.9
log3 40:1 - 11.3 11.5 12.3 11.9
Obviously 40:1 was much slower so I didn't even bother with 45 or 50:1.
I also cut with 32:1 and 40:1 yamalube 2r. pretty obvious that 32:1 was better. So instead of doing an un-needed 2r test. I set up for tomorrow.
So it'll be
R50 vs Hp2 vs 2R vs K2 all 32:1 ...
You did this in the rain?!!! Wow, you're way more dedicated than I would have been, lol. I'm a wuss when it comes to being wet.
Very interesting findings. Am I correct that every oil has been fastest at 32:1, with the only exception being H1-R?
When do you get your ported 661 back? I suspect that you'll find the same to be there too. I think only a couple spot checks would be required to confirm that.
Very interesting findings. Am I correct that every oil has been fastest at 32:1, with the only exception being H1-R?
When do you get your ported 661 back? I suspect that you'll find the same to be there too. I think only a couple spot checks would be required to confirm that.
Pretty much jives with previous research.
Trx250r180
Saw polisher
Put dumonde in one of the 50 to 1 timeslots ,you should have extra chain now .
redbull660
Addicted to ArboristSite
rain - yeah. wasn't too bad. There is about 2-3 hr window tomorrow when it won't be raining or light rain, so that is when im going to do final test.
correct on h1r.
ported 661 - he's doing 3 661's for me...so no idea.
Put dumonde in one of the 50 to 1 timeslots ,you should have extra chain now .
I'd start out with 32:1 and 40:1 and see which was faster. Then go to 45:1 and then maybe 50:1. As it is I have zero info on that oil. So start out on the safe side I guess. They don't respond to email. I simply asked viscosity #s.
Since 32:1 seems to be the norm. Going forward, I'll probably mix up 32 and 40 and try those two and go from there. So testing more oil should be pretty damn easy relative to what I was figuring.
I bet a castor based oil would beat them all. 
Maxima Castor 927 for the win!I bet a castor based oil would beat them all.
Brad my assumption all along was the Mtronic system/carb on the 661 couldn't feed the saw enough fuel with H1R. I had to turn the high open one full turn on the saw I tested H1R in. With a properly adjusted carb I highly doubt the output of the engine would be diminished. Nevertheless that was the first and last saw I ran on H1R, if you have to adjust that much for an oil something isn't right.
That or klotz super techniplate.
