Chainsaw Dyno rework finally complete and ready for some mod testing.

[Naked Arborist]

I'm doing more testing tonight so I'll get to play with the o2 sensor more. I tuned the saw with a bar and chain and had it four stroking. I put it on the dyno and it ran smooth under loaf and I could hear it four stroking when it wasn't under load. I had a reading around 13.1. I then was reading that a two stoke is tuned best between 12.5 and 13.5 on cycles.

Never hear from you.

 

[Duane(Pa)]

This is cool stuff. I can't wait for you to try different fuels. ie: non-eth unleaded, e10, 100 av fuel, tru fuel, etc. Really looking forward to "hearing about" this stuff.

 

[chadihman]

This is cool stuff. I can't wait for you to try different fuels. ie: non-eth unleaded, e10, 100 av fuel, tru fuel, etc. Really looking forward to "hearing about" this stuff.

Didn't think about that. I can get true fuel at work and 100 10 mile away

 

[Nitroman]

When you are pulling down a load, have someone squirt some bar oil right into the chain channel and see what difference that makes, besides the big mess. I too am excited to see what the difference between fuels will be.

 

[LegDeLimber]

Quote : Duane(Pa), This is cool stuff. I can't wait for you to try different fuels. ie: non-eth unleaded, e10, 100 av fuel, tru fuel, etc. Really looking forward to "hearing about" this stuff.

Quote: chadihman, Didn't think about that. I can get true fuel at work and 100 10 mile away

Duuude, it was one of the first tangents I was yammerin bout in your build thread.
build dual tanks and a manifold of petcocks with long hose to swap fuels in mid run.
get some real data about fuels and saws!!
{sob sniffle, nobody listens to little ol me.} [ crying smiley face here]

wish i lived close enough to be underfoot and maybe help twist a fitting or two
on this project for you.

 

[chadihman]

When you are pulling down a load, have someone squirt some bar oil right into the chain channel and see what difference that makes, besides the big mess. I too am excited to see what the difference between fuels will be.

The bar oiler is pumping oil already. I turn the oiler setting down the whole way so it doesn't make quite as bad a mess. I let the oil out on the first ever run and things got hot quick so now the saw oiler is always run. It's messy alright. Takes a handful of rags to sop up the oil every run.

 

[Nitroman]

The bar oiler is pumping oil already. I turn the oiler setting down the whole way so it doesn't make quite as bad a mess. I let the oil out on the first ever run and things got hot quick so now the saw oiler is always run. It's messy alright. Takes a handful of rags to sop up the oil every run.

Then that part of the testing has already been addressed!:msp_tongue:

 

[Freudianfloyd]

Question....

Have you tried a dyno comparison of an MS660 Clone vs a Stihl MS660 by any chance?

It would be interesting to see how the clones stack up.

 

[chadihman]

Question....

Have you tried a dyno comparison of an MS660 Clone vs a Stihl MS660 by any chance?

It would be interesting to see how the clones stack up.

No I have not. Tested a bunch of saws and then quit. The dyno has Been unused for a couple years now. I'd love to see someone put it to use. Somebody make me an offer.

 

[Freudianfloyd]

No I have not. Tested a bunch of saws and then quit. The dyno has Been unused for a couple years now. I'd love to see someone put it to use. Somebody make me an offer.

I would love to play around with it but could never afford to make an offer that wouldn't offend you.

I think you need to break it out and play around with it some more. I'm sure somebody will need the new 500i tested.

 

[chadihman]

I would love to play around with it but could never afford to make an offer that wouldn't offend you.

I think you need to break it out and play around with it some more. I'm sure somebody will need the new 500i tested.

Where ya from

 

[Freudianfloyd]

If you meant where is farm, I'm located in southern Ohio, about an hour east of Cincinnati.

 

[LegDeLimber]

"fixed income" here, So I've got more ideas than I have money in recent years.
But...
I keep thinking that a set up to measure ignition timing advance would be a nice add on for the dyno builds.

For sensors?
Maybe rob a couple of heads from cassette decks or those portable device to cassette deck adapters that you still see in some of the Dollar Stores.
Heck, is there a common and cheap sensor in the automotive world?

Not sure on the software. Probably some things around that could nudged into service.