Another chainsaw dyno...

[Bigmac]

Been a minute since my banshee. It was a hoot on the road, and up at the dunes at Silver Lake. Never cared for it in the woods or on the MX *s-word.

I hear ya, I like the the banshee for straight line, have set up a few that could turn but I love a good Trx250r! My favorite all around 2t bike! With a big bore stroker they my favorite dunner, the suspension and geometry and weight make a great package

this would be a fair race for.... @Deets066

 

[Bigmac]

@Red97 , we wanna see this thing on the dyno.
It's chain driven, sooo . . . .

It puts out 1 hp for every 4cc on gas and a little more on alcohol

See?
I wanna ride that fugger

Road trip to Oregon dunes, even have paddles for you to borrow! We might negotiate a ride...

 

[srcarr52]

I hear ya, I like the the banshee for straight line, have set up a few that could turn but I love a good Trx250r! My favorite all around 2t bike! With a big bore stroker they my favorite dunner, the suspension and geometry and weight make a great package

this would be a fair race for.... @Deets066 View attachment 253033

Two wheels and 65hp from 518cc FTW!

 

[TreeLife]

Two wheels and 65hp from 518cc FTW!

Yo, thats a bad honkin bish too!!! Reminds me of the KX500 a friend had. Nasty nasty girl she was...the bike...

 

[Red97]

Two wheels and 65hp from 518cc FTW!

Put the track on and run them in the snow.

 

[Bigmac]

Two wheels and 65hp from 518cc FTW!

The r just made 59hp and 42lbs to the wheels, you should smoke me! But I did beat a 15 crf450 2 wheeler with a hi comp piston and exhaust, got him by four bike lengths, she is only 363cc

 

[Sawrain]

My mate is very into quads, anyone spot the major change to this ds650?

 

[Bigmac]

My mate is very into quads, anyone spot the major change to this ds650?

View attachment 253048

Inline 4, street bike engine, of unknown displacement...

 

[Sawrain]

Inline 4, street bike engine, of unknown displacement...

Hayabusa gsx1300r.

 

[Deets066]

Hayabusa gsx1300r.

So did he put the 650 engine in the GSXR? lol

 

[Definitive Dave]

My mate is very into quads, anyone spot the major change to this ds650?

View attachment 253048

Looks like the seat fell off to me.

 

[Sawrain]

So did he put the 650 engine in the GSXR? lol

Haha, now that would be unique ride.

 

[srcarr52]

The r just made 59hp and 42lbs to the wheels, you should smoke me! But I did beat a 15 crf450 2 wheeler with a hi comp piston and exhaust, got him by four bike lengths, she is only 363cc View attachment 253040

That is a pretty flat curve, lots of usable power!

 

[Nutball]

My mate is very into quads, anyone spot the major change to this ds650?

View attachment 253048

There's something big up front: big radiator or something? Looks like a huge engine like on the 518cc dirtbike, but maybe 2cyl

 

[Sawrain]

There's something big up front: big radiator or something? Looks like a huge engine like on the 518cc dirtbike, but maybe 2cyl

Part of the fuel tank and EFI pump showing.

1300cc 4 cylinder road bike donk, just about enough.

 

[Nutball]

I had a feeling it was much too wide for 2cyl, I thought 3cyl? 4? Nah

 

[Bigmac]

I had a feeling it was much too wide for 2cyl, I thought 3cyl? 4? Nah

Look up a busa if you have never heard of one, in-line 4 1300cc 173hp and 99lbs of torque for the gen 1

 

[Bigmac]

That is a pretty flat curve, lots of usable power!

Thanks, I build it for all around power not peak numbers or to be drag racer a different pipe and I higher exhaust port and it would probably make 7-10 mor hp and move the torque curve up a little. We kinda dynoed it on a spur of the moment, I wish I would have brought some different reed cages to test, did check the timing on they dyno and lost 1 hp giving it more or less timing, was pretty excited I could feel that out riding when I first set it up

 

[srcarr52]

Thanks, I build it for all around power not peak numbers or to be drag racer a different pipe and I higher exhaust port and it would probably make 7-10 mor hp and move the torque curve up a little. We kinda dynoed it on a spur of the moment, I wish I would have brought some different reed cages to test, did check the timing on they dyno and lost 1 hp giving it more or less timing, was pretty excited I could feel that out riding when I first set it up

I was trying a new cam and fuel on my bike when it let out the magic smoke on the dyno. I think it spit out a crank seal. I'll be pulling it the rest of the way down here in the next few days. Piston and cylinder look perfect. I have different style seals coming and I'll be opening up the crankcase breather reed valve to relieve more pressure.

The tuning wasn't done and with the exhaust sniffer still in the pipe it made a little more peak but +5.5hp at redline. So I expect to pick up another peak hp and gain the low end back with cleaned up tuning and without the sniffer the whole curve should step up some.

 

[Bigmac]

I’ve had a few vent issues with TRX 450s, I bet you pick up some HP just fixing that! Are you by any chance trying Q16?