Motus Motorcycles

[Avatard]

Is it likely to be a highly refined deal? No. It's half a fucking small block, kids.

It's a muscle car motor, cut in half to be a muscle bike motor.

It should be entirely and uniquely American in its personality, and I dare say; goddammit I like it.

[Dave]

Originally Posted by Avatard

Is it likely to be a highly refined deal? No. It's half a fucking small block, kids.

It's a muscle car motor, cut in half to be a muscle bike motor.

It should be entirely and uniquely American in its personality, and I dare say; goddammit I like it.

Just the same, I doubt it will be any faster when finished than an og vmax

[goof2]

Originally Posted by Avatard

Is it likely to be a highly refined deal? No. It's half a fucking small block, kids.

It's a muscle car motor, cut in half to be a muscle bike motor.

It should be entirely and uniquely American in its personality, and I dare say; goddammit I like it.

I don't care that they have chosen to go with pushrods. Lots of bikes are sold everyday with pushrod valvetrains. What I don't get is why Motus is going through the hassle and expense of gasoline direct injection for an engine that is not "high tech". As you said, this engine will not be highly refined so why are they screwing around with highly refined injection?

[No Worries]

Originally Posted by goof2

I don't care that they have chosen to go with pushrods. Lots of bikes are sold everyday with pushrod valvetrains. What I don't get is why Motus is going through the hassle and expense of gasoline direct injection for an engine that is not "high tech". As you said, this engine will not be highly refined so why are they screwing around with highly refined injection?

Emissions. EPA runs the show. If you want simple, fast and light, two-strokes are the way to go. I rode two-stroke streetbikes from 1971 to 1979. Easy kick-start, oil injection, and no worries about high compression, valves, cam chains and cam chain adjusters. If they only had electronic ignition and fuel injection back then, they might still be around.

[Dave]

Originally Posted by No Worries

Emissions. EPA runs the show. If you want simple, fast and light, two-strokes are the way to go. I rode two-stroke streetbikes from 1971 to 1979. Easy kick-start, oil injection, and no worries about high compression, valves, cam chains and cam chain adjusters. If they only had electronic ignition and fuel injection back then, they might still be around.

im eagerly anticipating someone tossing together a dfi 2 stroke.

[goof2]

Originally Posted by No Worries

Emissions. EPA runs the show. If you want simple, fast and light, two-strokes are the way to go. I rode two-stroke streetbikes from 1971 to 1979. Easy kick-start, oil injection, and no worries about high compression, valves, cam chains and cam chain adjusters. If they only had electronic ignition and fuel injection back then, they might still be around.

That would explain regular fuel injection. Direct injection adds a whole other level of complexity that isn't necessary for emissions compliance.

Originally Posted by Dave

im eagerly anticipating someone tossing together a dfi 2 stroke.

I'd also like to see it. Its too bad Bimota bankrupted their company attempting to build one. I think that is serving as a cautionary tale for other manufacturers.

[Avatard]

Originally Posted by goof2

I don't care that they have chosen to go with pushrods. Lots of bikes are sold everyday with pushrod valvetrains. What I don't get is why Motus is going through the hassle and expense of gasoline direct injection for an engine that is not "high tech". As you said, this engine will not be highly refined so why are they screwing around with highly refined injection?

Probably because computer controlled engine management is the order of the day, and would keep them still relatively competitive. Me? I like the simple joys of carburetors, but it's 2011...I understand the choice.

[Kerry_129]

I don't think the use of a p/r valvetrain somehow renders pointless any refinement & new-tech wizardry in the other sub-systems. It probably made more sense for them to concentrate their R&D efforts in other areas which would net them more in reaching their performance goals, given the displacement & operating range of the motor.

I think most innovations in vehicles (and machinery in general) have come about where one unique design element stands out, proves its worth, and is refined into a new 'norm' although the other elements are the same-old-same-old.

And plus-eleventy-one on how cool it would be for DFI 2-(no)smoke motors to be developed! IIRC from the little bit I read about them years ago, their at-speed emissions were good with DFI, but the at-idle requirements killed them & gives a decided advantage to 4-strokes meeting regs.

[Rangerscott]

Originally Posted by goof2

I don't care that they have chosen to go with pushrods. Lots of bikes are sold everyday with pushrod valvetrains. What I don't get is why Motus is going through the hassle and expense of gasoline direct injection for an engine that is not "high tech". As you said, this engine will not be highly refined so why are they screwing around with highly refined injection?

Gotta have something hightech on it so they can put a premium price on the bike. Would you buy it if they stuck with carbs?

[derf]

Originally Posted by Rangerscott

Would you buy it if they stuck with carbs?

Yes, never owned an FI bike, why should I start now?