Mastermind Meets The MS500i

Shane10 · Jan 16, 2020

Did any of you guys notice any way for this saw to measure intake air volume or speed? Or density/temp of the intake air for that matter? What about an oxygen or air fuel sensor? All I can see this saw doing is adjusting it’s fuel flow based on engine rpm and possibly engine temperature. Don’t let this computer stuff scare you guys it’s really pretty simple. Especially at the level this saw seems to be at.

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94BULLITT · Jan 16, 2020

How long is it til a chainsaw has a check engine light?

Mastermind · Jan 16, 2020

94BULLITT said:
How long is it til a chainsaw has a check engine light?

All my saws have a take a break indicator. It's in the fuel tank.....

Iceboy · Jan 16, 2020

Mastermind said:
All my saws have a take a break indicator. It's in the fuel tank.....

Hahaha!!! You're killing me!!!!!!

Στάλθηκε από το SM-A920F μου χρησιμοποιώντας Tapatalk

Sawrain · Jan 16, 2020

Shane10 said:
Did any of you guys notice any way for this saw to measure intake air volume or speed? Or density/temp of the intake air for that matter? What about an oxygen or air fuel sensor? All I can see this saw doing is adjusting it’s fuel flow based on engine rpm and possibly engine temperature. Don’t let this computer stuff scare you guys it’s really pretty simple. Especially at the level this saw seems to be at.

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A number of factory cars run a ‘speed density’ based fueling program, that is the engines fuel requirements are based on the air flow calculated from intake manifold pressure/temperature and the engines volumetric efficiency, coupled with rpm of course.

With a given factory like for like engine, the mass flow of air will always consistently correlate with with the intake pressure and temperature at any given rpm, it should also actively be compensated for barometric pressure, changes in altitude.

Problem is this mass flow rate is inferred and that any mod Increasing air flow will not be compensated for, by this system at least, so at this point I would have to take a guess that if the system is responding well to increased airflow/port work that it might still be employing a similar tactic to Mtronic, that is running a slight lean/rich cycle, hunting for max rpm under steady state cutting conditions.

I built up a speed density Megaqsuirt 12 years ago.

Deets066 · Jan 16, 2020

I really didn’t think a website called mega squirt would have anything to do with automotive.

Mastermind · Jan 16, 2020

Deets066 said:
I really didn’t think a website called mega squirt would have anything to do with automotive.

Your mind.....its dirty.

Wood Chopper · Jan 16, 2020

Mastermind said:
All my saws have a take a break indicator. It's in the fuel tank.....

That's weird, my 6100 must not have one? Keeps making me work... I'll look harder.

MG porting · Jan 16, 2020

Wood Chopper said:
That's weird, my 6100 must not have one? Keeps making me work... I'll look harder.

You're running lean then. Lol. Drink more water.

just funnin with you.

Wood Chopper · Jan 16, 2020

MG porting said:
You're running lean then. Lol. Drink more water. just funnin with you.

Yes maybe i'm not hydrated.

MG porting · Jan 16, 2020

Wood Chopper said:
Yes maybe i'm not hydrated.

But don't get to hydrated or you'll be doing a lot of this.

. and not a lot of work. LoL

Sawrain · Jan 16, 2020

Has anyone moved a ms500i over a large elevation change without starting in between, 2000ft/600m+

Wondering how it behaves?

1) It takes a few (steady wot) cuts to compensate and run as it should?
2) It can measure slight changes in crankcase pressure and compensate in an instant/real time?
3) It can measure atmospheric pressure before/during starting and apply this for instant compensation?

4)It's operation has been figured out and I have missed it?

RI Chevy · Jan 16, 2020

Those are the $64,000 questions...lol

49er · Jan 16, 2020

RI Chevy said:
Those are the $64,000 questions...lol

How old are you to remember that show?

RI Chevy · Jan 16, 2020

I'm an old fart...lol

Terry Syd · Jan 16, 2020

I remember when it was a $64 question...

RI Chevy · Jan 16, 2020

Wow...lol

Wood Doctor · Jan 16, 2020

RI Chevy said:
Those are the $64,000 questions...lol

Wasn't that Hal March who was the MC on that show? The isolation booth one time almost cooked a contestant who came close to fainting when he was removed from it. The guy was mad as a hornet. He would have used a chainsaw to cut his way out of it.

RI Chevy · Jan 16, 2020

LOL. Not sure... I just remember watching the show. [emoji16]

00wyk · Jan 16, 2020

Mastermind said:
I'm not at all scared of technology. And.....I don't mind gearing up for whatever it takes.....

I wasn't happy I couldn't find a carbureted Evo HD when I was looking for bikes a few years back. My rice rocket days are long gone, and I just wanted a nice lopey ride to transport my guns and drugs with. I ended up with an efi twin cam because the price was just too good, and my evo bid fell thru. But, I gotta tell ya, hooking it up to the laptop and tweaking it was effortless and made huge differences in ridability and torque, and I could even tune the idle for the sound I wanted. My only issue with the stuff is if it is less reliable than the outgoing stuff. That is a bit of a peeve of mine. But that HD was rock solid, er, engine wise..uh..
But let's not kid ourselves. The future is electric. And it's eventually gonna be red barchetta songs all day long for guys like us. Enjoy it while you can meow.

RIP Neil:

Mastermind Meets The MS500i

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