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Era of Supercharged medium sized motorcycles coming!

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Waltr:
Turbo or supercharged diesel engines could last forever and deliver prodigious mid torque great economy. Is the M/C community ready for diesel?

Kev m:

--- Quote from: Aaron D. on December 24, 2014, 11:37:11 PM ---Turbos etc have come a long way since the 80s. I've driven about 1,000,000 in turbocharged cars, the days of peaky, lag-ridden engines has passed.
My current 2 liter turbo pulls like a much bigger engine. Built for grunt.

I bet they'll be cool. By the way, I've never had a turbo problem of any sort.

--- End quote ---
I've only owned three modern petrol forced induction engines (2 turbo, 1 supercharged) and though they were/are all fun enough, I'm not sure I agree.

For starters they all had lag.

They all required premium (or at least 91 US octane) fuel.

And though they made decent power, they weren't as efficient as billed.

I just don't see what such a package in a bike would really get us in terms of advantages I care about.

biking sailor:
From the article it appears Honda is doing this to a mid-sized 700 twin that puts out "OK" power to make it more efficient and a mild boost of power.  The test ride I did on the NC700X felt a bit underpowered for the size.  If this brings it up a bit in the torque department without overstressing the engine, killing economy, or requiring premium fuel, I would welcome it.

I ended up with a CB500X as it "felt" more peppy and having to raise the back seat to add fuel was a turnoff as it will have saddlebags and a tail bag strapped on the back seat when traveling.  Needed to put the filler on the side like BMW did.

Kev m:

--- Quote from: oldbike54 on December 25, 2014, 03:09:15 PM ---If the supercharged engine was exhibiting lag , something was wrong with it .

  Dusty

--- End quote ---
No, that is not necessarily a fundamental difference anymore.

A supercharged motor still may require some revs to get in its peak power range, especially considering the small size of the motors.

And turbos HAVE improved having LESS lag, but it's still there.

But that's probably one of the reasons why BMW did abandon the supercharger and switched to a turbo in the that application after a few model years, I.e. because there was no real advantage.

Vasco DG:
Forced aspiration in spark ignited motors is a loathsome excercise in diminishing returns. I LOVE forced aspiration for diesels but loathe it for petrol engines. Jude has a turbo petrol Eos. Biggest turd ever!

Pete

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