D Beddows
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| posted on 25/11/11 at 04:38 PM |
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Hayabusa Engine In An MX5
Amazing what you find when you're looking for something else 
I know attaching a bike engine to a car gearbox has been talked about on here many times (admittedly mostly for reverse or overdrive purposes rather
than a direct replacement for the bikes gearbox) but I'd never actually seen anyone really do it until now.........
Hayabu
sa on an MX5 Gearbox
Sadly it stops before they drive it - clever (if it works as they anticipate) but I'm not sure it's worth the effort tbh
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Bare
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| posted on 25/11/11 at 05:51 PM |
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No worse than some lunatic who used a Merlin engine in his homebuilt contraption.
Do wonder about the effects of a flywheel clutch action on the not designed, or ever intended for, thrust absorption Bearing capabilities of a Bike
engine.
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MakeEverything
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| posted on 25/11/11 at 06:10 PM |
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Love it. Proper engineering.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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speedystew
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| posted on 25/11/11 at 06:27 PM |
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holeshots been doing the hartley engines for a while
http://www.holeshot-racing.co.uk/index.php?page=holeshot-hartley-v8
http://www.holeshot-racing.co.uk/index.php?page=h2-4-busa
dont look at the prices tho
duratec,it's so last year
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nick205
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| posted on 25/11/11 at 09:55 PM |
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Those prices are eye watering - I'd be terrified of trashing it!
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StevieB
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| posted on 25/11/11 at 10:08 PM |
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Doesn't it defeat part of the point of having a bike engine?
You lose the 6 speed sequential box and add a load more weight back in.
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speedystew
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| posted on 25/11/11 at 10:54 PM |
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i doubt the bike box would take the power for long  
duratec,it's so last year
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RK
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| posted on 25/11/11 at 11:14 PM |
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I noticed a while ago that they haven't updated in a long time. Not a good sign I guess. As for "why?", the engine is still lighter
than the MX5 unit, and probably more reliable.
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D Beddows
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| posted on 25/11/11 at 11:14 PM |
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I'm not sure you've read the article properly speedystew - the only gearbox used is the MX5 one. It's a clever idea if you read the
whole article (both parts) but I really can't see the point tbh. Interesting to see it attempted in real life tho
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D Beddows
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| posted on 25/11/11 at 11:26 PM |
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You're joking aren't you RK?? the MX5 engine is way overdesigned for it's life in an MX5 as it was originally designed as a turbo
engine. It's heavy and hard to tune n/a and in terms of 90's 16v twin cam engines the 4AGE is a much better design BUT less reliable than
a bike engine in a car???
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speedystew
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| posted on 25/11/11 at 11:42 PM |
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got to admit i did not read the article,the hartley engines are bespoke bottom ends based on busa top ends 1600 cc 4 cylinder producing 260 bhp n/a
and turbo to 620 bhp, thats why they dont use the bike box
and the v8 is automotive porn
duratec,it's so last year
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