would it work?

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james butler
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would it work?

Post by james butler »

being quite bored lately sanding the project car you tend to day dream all kinds of weird and wacky ideas, but one came to mind the other day that after lots of contemplating seems quite plausable so please hear me out.
how hard would it be to strap an electric motor to the side of an engine block and link it to the crakshaft via a chain or something?
this would act like a super charger by putting extra power through the crankshaft using electrickery form a seperate battery then when you brake it could charge up the same seperate battery.
in my mind it would be like a "kerrs unit" i think its called? so you could use it as boost like nitrous when charged. once depleted then you would have to wait for it to charge again as your driving along.
i had a drive of a bmw I3 the other day and im gobsmacked how fast it was, seriously its as fast as an M3 or subaru in short sprints, only downside is the batteries dont last long on a charge.
but if you could get hold of the techno and strap it to work with a combustion engine to boost it in short bursts i think would be awsomme.
plus because you have an allready working car you only need it as a bolt on kit.
comlplete EV conversions can be had at £4500 so a kers style unit cant be much more expensive than £2000 which must be cheaper than turboing a car or most engine conversions with the incurred running costs?
what your opinions peeps?


I dont mind project cars but I HATE SANDING!!!
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unknownmale
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Re: would it work?

Post by unknownmale »

Perhaps an additional high amp alternator on a clutch pulley which disengages when the battery voltage reaches a set value and engages when the brake pedal is pressed. That would solve power and charge and not cost too much in terms or weight or drag on the drivetrain when its not in operation.

I think the hard part is putting an additional power source through the current drive chain without throwing off time...I suppose done mildly, toothed to the flywheel, it could just help break traction and provide a little boast in torque...But I think the better option would be to use the stored energy to force induction, so perhaps bung a super charger in which is run on an electric motor...But saying all that I think you'd have a more reliable, faster and lighter system to just have a super charger, clutch the pulley and have a bypass valve from the filter to the inlet when the super charger is not in use.

I guess that unless you are running an EV it's pretty difficult to get electric power through the drivetrain.


- David
mark1gls
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Re: would it work?

Post by mark1gls »

I also had a drive of an BMW i3 and was impressed how quick it was for and electric car 0 to 62 in 7.2 seconds, I guess no gear changes and instant torque is what makes it fell quick, I found it very strange to drive as when you left off the accelator it slows down quickly as that charges the battery it's like some ones puts the brakes on not a good idea on a bend with those really skinny tyres on the car!
It seems the addition of an electric motor to a petrol engine is the way lot of super cars are heading, give it a few years and perhaps you could just buy an off the self kit to fit but it would need good light batteries as they can be heavy.


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
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GTXTRA
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Re: would it work?

Post by GTXTRA »

Worth checking this out - Jamie Turners Polo

http://www.clubgti.com/showthread.php?2 ... imate-Dubs!!!

He also owns a stunning Mk1 Scirocco.


Serial Rocco-ist.........
SumDarkPlace
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Re: would it work?

Post by SumDarkPlace »

With my old Volvo C70 I've been thinking about adding a motor, but my though was why not stick it on the rear axle? Using a V70 4wd rear setup, and mounting the motor onto the rear diff. More of a thought experiment at this point. Switching between the two, or using them concurrently would require some careful setting up and control system.

Can't see why this wouldn't work for a rocco using golf rallye rear setup, but the floorpan would need some mild fettling (!)


SumDarkPlace
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Re: would it work?

Post by SumDarkPlace »

Also, check out Jonny Smith from 5th gear, and his EV project: http://www.flux-capacitor.co.uk/

Really nice bloke btw, I went to school with him.