Snellerized MS461 on the dyno

[Deererainman]

I run tractors on dyno's all the time at work. It does not strain a true working tractor more than what it was intended for. On Saturday I ran a 360 hp New Holland T8.360 on our dyno and the performance monitor in the tractor said it was at 100% engine load at rated test pull down rpm. Yesterday I had that same tractor hooked to a 12 row pivot planter and moved it to a location down the road 2 miles. The performance monitor said 118% engine load when pulling Hills at road speed.

I must have been mistaken. I thought you were testing to maximum levels not 100% rating. My experience is with 2 cylinder Deere's. Stroked & bored then tested for maximum output and all we had was the needle on the dyno, the rpm gauge and temp gauge. Most importantly our ears. We were taking stock JD G's up to 120hp at the PTO.

 

[1 stihl nut]

I must have been mistaken. I thought you were testing to maximum levels not 100% rating. My experience is with 2 cylinder Deere's. Stroked & bored then tested for maximum output and all we had was the needle on the dyno, the rpm gauge and temp gauge. Most importantly our ears. We were taking stock JD G's up to 120hp at the PTO.

If you are testing a tractor that has a clutch and cooling system design for less than 50 hp and you hop it up to 120 hp and run it ar full load, then of course you are going to put a strain on things.

These saws are putting out more than their rated hp, but it's still within the parameters of what the chassis can handle. After all, they are still worksaws and can be used hour after hour. If they couldn't, these builders wouldn't be so busy.

 

[Haywire Haywood]

That's a very smooth uniform power curve there Brad. Nice work.

Ian

 

[Deererainman]

This an MS 660 on the dyno taken a while back less the electronic testing equipment. I also added an electric fan on the oil cooler.

Chad, That's a nice looking set up.

 

[Hedgerow]

I must have been mistaken. I thought you were testing to maximum levels not 100% rating. My experience is with 2 cylinder Deere's. Stroked & bored then tested for maximum output and all we had was the needle on the dyno, the rpm gauge and temp gauge. Most importantly our ears. We were taking stock JD G's up to 120hp at the PTO.

Love the sound of a big bore G in the morning...
Surprised they didn't shell the PTO.
My R did...

 

[lwn9186]

Chad
Your pricing also needs to reflect the wear and tear on the dyno itself as well. Don't short yourself.

 

[Husqavarna Guy]

Yes, the 390 will be faster. It's a much more modern quad port design. The 390 is just an over grown 372/346 and runs accordingly.

Brad how do you compare a ported 390 vs a ported 395? Also is the 395 a quad port or dual port?

 

[blsnelling]

A 390 will be faster than a 395 until the wood gets big, then the torque of the 395 will take over. The 390 makes more RPMs. Both are quad port cylinders, but of different design. The 390 transfer draw directly from the base of the cylinder where as the 395 takes in through the cylinder wall like a MS660. Both are great saws.

 

[blsnelling]

Here's another brand new MS461R I ported today. It's tuned to 15K and still 4-stroking good. It's holding 12,500-12,700 in the first cut.

 

[nikb47]

Blip blip nice

 

[Deets066]

Here's another brand new MS461R I ported today. It's tuned to 15K and still 4-stroking good. It's holding 12,500-12,700 in the first cut.

Sounds awesome as usual Brad! Is that just a dp cover or are both ports opened way up?

 

[SAWMIKAZE]

To think some guy missin most of his teeth is gonna end up with that POS...what a shame.

 

[big t double]

To think some guy missin most of his teeth is gonna end up with that POS...what a shame.

If you feel that bad about it then have it sent to Illinois.

 

[blsnelling]

Sounds awesome as usual Brad! Is that just a dp cover or are both ports opened way up?

Both are opened up, and have large mesh screens.

 

[SAWMIKAZE]

Both are opened up, and have large mesh screens.

Do you like that screen i use brad ? , Dan found it somewhere , i use it in everything.

 

[blsnelling]

I sure do. I'd like to know where to source some.

 

[LowVolt]

I sure do. I'd like to know where to source some.

Is this it???

http://www.amazon.com/Allstar-Performance-ALL22265-Opening-Stainless/dp/B00F0BO0L4

 

[blsnelling]

This stuff doesn't fall apart like the other screen I've seen.

 

[Deets066]

I don't use any screen,

 

[Deets066]

I know that it's necessary for some people though