clutch_kick
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| posted on 2/11/07 at 11:00 PM |
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I've got plenty of experience with turboing, car engines, but they are kind of 'easier' to work with. The lower revs and stronger
exhaust pulses make life easier.
To me it seems that the TD04HL-16T-6 would be the most sensible turbo for a ~1000cc engine. At this point in time I do not think that it is worth the
money to spend big on a ball bearing turbo. Especiallay since i don't intend to run any sort of mad boost on it, yet.
I'm just undecided. Don't know if it would make sense to turbo the R1 engine for Hillclimbing, or stick in a busa engine.
I'm a bit biased towards the turbo route, but going N/A busa power seems a bit like cheating, no challenge.
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GeorgeL
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| posted on 7/11/07 at 04:28 PM |
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I'd always be worried about the turbo changing the charateristics of the bike engine. I spoke to holshot and he seemed to suggest on a busa peak
power was made as low as 6 or 7k, with that power being held right up to the redline. For me that would feel odd to drive.
For that reason I would be more tempted by a supercharger conversion. The linear power deliverey would affectively keep the engine characterisitcs the
same, but just produce more torque and power. The only problem is I guess the cost of the Rotrex units.
I take it a low pressure turbo would work better with a bike engine? Or does the weak exhaust pulse actually mean the power can still be achived
higher up with a broad spead?
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andygtt
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| posted on 7/11/07 at 05:09 PM |
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The trouble is that superchargers and turbos run over a range so a supercharger will probably be more of a challenge higher up the rev range to keep
boost and will tail off.... changing the charactreistics of the engine.
The trick with forced induction is to spec it to the application regardless of method used.
Personelly I prefer turbo's purelly as they don't rob the engine of some of the extra power produce..... I'd love to turbocharge my
injected R1 engine.
to many projects & ideas and not enough money & time.
Andy
please redefine your limits.
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