Dopdog
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| posted on 5/6/14 at 07:15 AM |
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Which bike engine for a car
Hi Guys,
I am sure this has been asked before but what do you think is the best bike engine and why to put in a car?
I am looking at sprinting a BEC and need to know which one I can beat up the most?
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kj
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| posted on 5/6/14 at 07:40 AM |
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depends on car and budget
Think about it, think about it again and then do it.
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greaseweasel
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| posted on 5/6/14 at 07:45 AM |
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Hayabusa engines are the usual choice as these are able to be modded further to produce big BHP figures (turbo's etc are often fitted). Also
you don't have to rely on rev's so much, unlike a lot of bike engines.
Bikes such as R1's and some other litre sports bikes rely on high rev's to get the power up, but with more weight than a bike, this will
feel almost like turbo lag i.e. not a lot will happen below around 5000 revs and then all hell breaks loose (which has its own amusement).
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40inches
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| posted on 5/6/14 at 08:05 AM |
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The ZX9R has a very good power spread, with no noticeable coming on cam. Mine will pull like a train, two up in 6th from 40mph.
However, if you are going to use it solely for sprinting, the power band is irreverent because the engine launch speed, around 8000rpm? will be well
above the cam transition point.
I think the limiting factor will be the gearbox reliability. I would look at what others are running in your chosen class.
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matt_gsxr
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| posted on 5/6/14 at 08:29 AM |
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Motorbike engine. In a car. What are you thinking?
Frankly a ridiculous idea.
http://jpsc.org.uk/forum/
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matt_gsxr
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| posted on 5/6/14 at 12:10 PM |
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On a more serious note.
Hayabusa if you have the cash. Because they are excellent in the first place and being so good means that all the after market parts are
available.
If there is a reason to stay below 1 litre (class regs?) then that discussion has been had before: cbr1000rr, zx10, gsxr1000 all proven to be able to
win stuff. Just choose your favourite japanese brand. Some come with slipper clutch which might make them more robust.
http://jpsc.org.uk/forum/
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The Knobs
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| posted on 6/6/14 at 09:28 PM |
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BSA Bantam?
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alfiebeard
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| posted on 6/6/14 at 10:08 PM |
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quote:
Originally posted by The Knobs
BSA Bantam?
Nah too peaky, CZ 125
Alfie
Old bloke on a mission with 320BHP of help
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StevieB
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| posted on 7/6/14 at 07:10 AM |
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It's more about torque than power output for me.
For instance, if you want max power and costs aren't a consideration, the BMW S1000RR is the way to go, but the torque isn't the best and
gearbox is made of chedderilium.
CBR1000RR seems a good option at the moment, though if I go back to a bike engine I'd be more than happy with another early R1 like I had in my
Indy - a little down on power against current units, but still about 150bhp, decent enough low down grunt and still very quick. It'd be cheaper
to buy (if I could find a low mileage example) and I don't think and extra 20 to 30bhp for a more modern unit would make me significantly
quicker for the extra cost over spending the difference on a heap of Trackdays and getting some time behind the wheel.
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hkp57
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| posted on 7/6/14 at 07:40 AM |
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What you really need is the MTT streetfighter, 320hp at 52,000rpm as standard. Or upgrade to 420hp
MTT Turbine streetfighter
Fleet
SKC Raptor R - Hayabusa
Toyota C-HR Hybrid Limited Edition
Honda VFR1200 CrossTourer
DCT
Marlin Roadster 1800
Mercedes Vito 116 Sport
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daniel mason
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| posted on 7/6/14 at 08:23 AM |
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I think terry everall and tim nunn it's the cbr 1000rr and are both very very quick sprinters!
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Phil ashton
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| posted on 17/5/15 at 06:01 PM |
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Hi. Has anyone tried a BMW s1000rr engine? I have 4 new ones, 2 of which have looms ecu etc and was thinking of using one for a hill climb car
project. Any thoughts?
The spare ones are open to sensible offers if anyone has a similar project.
Phil
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T0MMY
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| posted on 20/5/15 at 05:03 PM |
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quote:
Originally posted by greaseweasel
Bikes such as R1's and some other litre sports bikes rely on high rev's to get the power up, but with more weight than a bike, this will
feel almost like turbo lag i.e. not a lot will happen below around 5000 revs and then all hell breaks loose (which has its own amusement).
You have to remember though that although 5,000 RPM sounds high if you're used to car engines, BECs will have a redline twice as high and
gearing half as tall as a CEC. You're sitting at much higher revs all the time so 5,000RPM is pretty much like 2,500RPM in a normal
car...pretty much "pulling away briskly" revs and you'll rarely be below it.
My R1 engine never feels like it lacks low down power, in fact it always amazes me how tractable it feels and I usually only use the midrange unless
really going for it or on track. Now my CBR600RR...that really is as flat as pancake until the top end!
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