Transmission Swap

[redroadster]

Ever seen the rods of the 4 banger cycle engines they are half of car rod plus the flywheel tiny
Hp what's that.? What it the torque #s

[mschel]

Yeah they are much lower torque and high rpm. This is more of a why not experiment that may actually work

[mschel]

Interesting. Will read up on that motor. For now going with the Hayabusa 1300.

Don't know about rpm wise, but.... there is the 2.3 Litre, 3 cylinder Triumph motorcycle engine......
From Wikipedia:
"Rocket III Roadster
The 2010 Roadster is the most powerful bike in the Rocket III line-up, with a claimed 163 lb⋅ft (221 N⋅m) torque and 146 bhp (109 kW) power, as well as a dual exhaust, one per side, instead of the previous 2 and 1 layout. Triumph calls it "the ultimate muscle streetfighter".[18]

Or... just the "Rocket 3" - 2458 cc @ 165 hp (6,000 rpm) and 163 ft/lbs (4,000 rpm):
https://en.wikipedia.org/wiki/Triumph_Rocket_3
Maybe this one..."Rocket 3 TFC" - 179 hp @ 7,000 rpm
https://www.triumph-motorcycles.ca/moto ... cification

Hard to believe they make motorcycle engines that big......

[redroadster]

Delete

[TurboRagtop]

Torque is the concern here, at least for me.
My alleged math indicates 178 HP at 10,000 RPM will give 94 lb-ft of torque. That’s a bit less than a 2000 making 135 HP.
The real question is what is the shape of the torque curve?
IOW, where does it peak? (At what RPM?)
Remember that torque is the only thing that can be physically measured. Horsepower is just a calculated value; HP is (T*RPM over 5252)
What that means is what you really feel as the car pulls hard through the gears… is torque.

[mschel]

Hi. I believe it's a higher end torque curve. It's more of an experiment than something reasonable

I have done V8 swaps/builds my whole life so wanted to try something new that revs super high.

I will probably look at the honda k24 or some of the other similar options if it doesn't work out.

Also I am getting a 1600 motor at some point to maybe go original or have the option at least.

Will see

Torque is the concern here, at least for me.
My alleged math indicates 178 HP at 10,000 RPM will give 94 lb-ft of torque. That’s a bit less than a 2000 making 135 HP.
The real question is what is the shape of the torque curve?
IOW, where does it peak? (At what RPM?)
Remember that torque is the only thing that can be physically measured. Horsepower is just a calculated value; HP is (T*RPM over 5252)
What that means is what you really feel as the car pulls hard through the gears… is torque.