stan_the_man
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Registered: 14th Feb 07
Location: Perth, Western Australia
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Yes Honda engines spin the opposite way to most other cars.
If you were to somehow bolt it to a regular gearbox you'd be given 5 reverse gears and one forward gear.
Theres videos of an Escort with a Honda engine which the guy made spin the other way so it'd work with the original Escort 'box. Involved making new camshafts etc.
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taylorboosh
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Registered: 3rd Apr 07
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right so the standard imp engine uses a very weak transaxle with limited space..
if a honda anti clockwise engine engine bolted to a conventional gearbox gives 5 reverse gears and one forward
then if that was turned back to front as it would be in the imp, those five reverse gears would be forwards
 im really thinking out loud
this would allow the engine to go in origional position without the weak transaxle..
i wouldnt mind a mid mounted fwd set up but cant get my head around how to re design suspension and no fucker seems to take good pics of this
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taylorboosh
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Registered: 3rd Apr 07
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btw the front label just shows thats the front end of car, engines are at rear
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Cole
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Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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Dymaxion runs backwards they had to flip the axle 180 degrees to get the wheels to,run forward
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Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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The B16B runs backwards compared to a conventional engine.
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taylorboosh
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Registered: 3rd Apr 07
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could it be mated to a conventional gearbox though, if so which one
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taylorboosh
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Registered: 3rd Apr 07
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quote:
Originally posted by Cole
Dymaxion runs backwards they had to flip the axle 180 degrees to get the wheels to,run forward
had thought about this but then there wouldnt be enough space for a the engine mounted with a box and prop
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stan_the_man
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Registered: 14th Feb 07
Location: Perth, Western Australia
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Any B and D series Honda engine runs opposite way IIRC.
Later K series ones are round the conventional way.
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taylorboosh
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Registered: 3rd Apr 07
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would a k-series box bolt to a b16 and give a RELIABLE 6 reverse gears
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Eck
Premium Member
Registered: 17th Apr 06
Location: Lundin Links, Fife
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A K series gearbox won't fit a B series  Why isn't it possible to use a Honda gearbox?
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taylorboosh
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Registered: 3rd Apr 07
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see the imp uses a reverse longitudinal arrangment
if i could do a reverse transverse in the boot it would be cool as fuck
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taylorboosh
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Registered: 3rd Apr 07
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quote:
Originally posted by Eck
A K series gearbox won't fit a B series Why isn't it possible to use a Honda gearbox?
because the engine will need mounting back to front.. the standard box would actually give 5 reverse gears in an imp..... hense a box that works opposite way to the engine would give 5 forward gears in my mind..
very hard to explain
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taylorboosh
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Registered: 3rd Apr 07
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ttt
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FlaFFy_91
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Registered: 30th Sep 08
Location: Formby, Merseyside
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i think i understand you tbh john
but from what i know of gearbox's with them having helical (sp) gears, they are cut in one direction so the gears themselfs wouldnt mesh, they would just mash to feck
i think haha
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taylorboosh
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Registered: 3rd Apr 07
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Thats exactly what im asking
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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You mean the crank spins the opposite way?
Yes there are engines like that.
No idea what would happen if you reversed the direction of the input shaft on a conventional gearbox, my first thoughts are it would be fine except for giving you 5 reverse gears at the shafts although I'm not sure to what extent the box would be tolerant/capable of handling torque in the wrong places.
[Edited on 01-02-2012 by Ian]
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taylorboosh
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Registered: 3rd Apr 07
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Hmmm I think its worth a look into although the hastle it will cause may cost more than a £2k imp straight cut box
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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Think the linkage is one of your biggest issues.
Choice of engine is just based on the orientation.
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taylorboosh
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Registered: 3rd Apr 07
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also wonder if something can be done to say a f20 to make the drive come out backwards? then i can use an xe in the boot
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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You can reverse the drive, not particularly cheap though.
Is there not enough room to fit the engine in front of the shafts as in the FWD application?
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taylorboosh
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Registered: 3rd Apr 07
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there is but it would have to be in the cockpit and that means re designing the whole rear suspension set up and cutting huge holes in the floor
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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Height of the back window is the only real constraint. I would think fabbing that to sit there is less work than what you propose with the drivetrain.
Suspension, mounts and holes in the floor is largely a fairly low tolerance job, so long as you manufacture things with a degree of adjustment you can align it post-build.
Whereas drivetrain needs to be able to handle the torque, be balanced etc. to far finer tolerances, far fewer people who can engineer such an approach.
Plus it also leaves you with cheap parts if you need to replace. If you blow up your fancy reverse-action custom bell house box you're not going to pick up another one off here for £20 as you will an F20.
[Edited on 01-02-2012 by Ian]
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taylorboosh
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Registered: 3rd Apr 07
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http://retrorides.proboards.com/index.cgi?board=general&action=print&thread=45956
this lad in here has had the same idea..
wonder if flipping an f20 with an adaptor plate could work or if the diff can be reversed in one?
shouldve said ian, im largely looking to have the engine in the origional compartment, hense looking at every option before i make a move
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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Not clear about flipping the gearbox. Surely if it gives drive in sympathy with the crank when its bolted up as standard then it still will if you rotate the housing?
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taylorboosh
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Registered: 3rd Apr 07
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im not sure how it would work.. wonder if someone in the know gearbox wise can tell me if its possible to flip the diff in an f20? also if it is posible will this make the whole gearset run backwards or just the drive through the shafts?
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