quinnj3
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| posted on 25/3/08 at 10:23 AM |
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honda engines?
Hi
I was just chatting to a friend at the weekend about possibly putting a honda H22 Prelude engine into a locost etc. he reckons that it wouldn't
work because honda engines rotate in the opposite direction to Ford and VX etc. Is this right? He also mentioned that the timing belt is in the
wrong position to fit a kit car. I think he might just be misinformed but it made me realise that there are very few honda engined kit cars. Is this
the reason for the lack of honda engined kit cars?
Thanks
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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ruudbeckers
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| posted on 25/3/08 at 10:33 AM |
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The newer Honda engines (K-series) turn in the right direction, but I don't know if an adapterplate is available to attach it to a ford
gearbox.
You could also use an S2000 engine together with the s2000 gearbox.
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Mr Whippy
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| posted on 25/3/08 at 10:39 AM |
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I'd love to know where this unsuitable timing belt is, the glove box, hiding in the headlining? Such a general statement - 'the wrong
position to fit a kit' oh the anticipation 
Fame is when your old car is plastered all over the internet
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quinnj3
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 posted on 25/3/08 at 11:00 AM |
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i have a prelude at home waiting on mot. the engine is very strong, just bad bodywork. Is it possible to fit this in a locost? I was pricing s2000
engine + 'box. It is more than £2500. I'm sure it would cost a lot less to fit a H22a engine. Especially as i already have a great
engine available.
What about even using this engine with an s2000 gearbox? Lots of questions I know but all answers appreciated
[Edited on 25/3/08 by quinnj3]
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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nitram38
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| posted on 25/3/08 at 11:14 AM |
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Can't you just flip the diff over if the engine rotates the wrong way?
They do it a lot on scrapheap challenge! 
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ruudbeckers
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| posted on 25/3/08 at 11:20 AM |
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Well, the S2000 engine turnes in the oposite direction to the prelude engine.
So probably not a very good idea to mate a prelude engine to an s2000 gearbox.
You could however build a mid engined locost with the prelude engine.
Have a look at www.kimini.com, he has build a mid engined mini with a this engine.
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02GF74
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| posted on 25/3/08 at 11:21 AM |
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yeah - honda's spin in opposite direction. presumably prelude is FWD and your car will be RWD? hence you need to have either the matching
honda RWD gearbox or see if engine spins clockwise when viewed from the front ( timing belt end), if not, you are rather stuck.
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MikeRJ
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| posted on 25/3/08 at 11:23 AM |
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The B,D and H series all rotate "backwards" which is why you don't see them used much in front-engine/RWD applications. They would
be ok in a mid-engined car though.
Running a diff upside down is a possibility, the diff is unlikely to complain provided you sort out breathers etc. but running a gearbox backwards is
more likely to be problematic. For starters the thrust forces from helical gears will all be in the opposite direction to that intended by the
designer.
Scrapheap Challenge can get away with this kind of bodgery as the vehicles only have to last a couple of hours.
[Edited on 25/3/08 by MikeRJ]
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Fatgadget
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| posted on 25/3/08 at 11:24 AM |
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@nitram If you do that the crown wheel and pinion wont last very long. Helical cut gears are designed to rotate in one direction.
[Edited on 25/3/08 by Fatgadget]
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BenB
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| posted on 25/3/08 at 11:28 AM |
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S2000 is a tall engine though. Might have trouble fitting under the bonnet unless you're prepared to have a serious bonnet bulge. Spinning the
"wrong" way would also pose a problem...
Flipping the diff (as mentioned) is only a good idea if you're not planning on going far. It'll wear the diff very quickly...
There's nothing wrong with Honda engines (particularly the bike ones  )
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quinnj3
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| posted on 25/3/08 at 11:29 AM |
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i think there is enough answers there thanks guys. I don't think there is a rwd honda from the early to mid nineties, but correct me if
i'm wrong. I'd definately be interested if there was one. other than that i think the prelude will just go through mot and on to a new
home.
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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Mr Whippy
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| posted on 25/3/08 at 11:41 AM |
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I don't see the problem, just turn the seat round
and Mr Bean covered locost remote steering before
Fame is when your old car is plastered all over the internet
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MikeRJ
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| posted on 25/3/08 at 11:42 AM |
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quote:
Originally posted by Fatgadget
@nitram If you do that the crown wheel and pinion wont last very long. Helical cut gears are designed to rotate in one direction.
[Edited on 25/3/08 by Fatgadget]
That's a good point, I was (incorrectly) considering the case of running a diff upside down with the correct rotation on the input which has
been done a few times.
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MikeRJ
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| posted on 25/3/08 at 11:44 AM |
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quote:
Originally posted by quinnj3
i think there is enough answers there thanks guys. I don't think there is a rwd honda from the early to mid nineties, but correct me if
i'm wrong.
The NSX was RWD, but it was also mid engined so not overly useful in this case.
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MikeRJ
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| posted on 25/3/08 at 11:46 AM |
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quote:
Originally posted by BenB
S2000 is a tall engine though. Might have trouble fitting under the bonnet unless you're prepared to have a serious bonnet bulge. Spinning the
"wrong" way would also pose a problem...
The F20C (S2000) and K20A (Civic Type R) both turn in the conventional direction. They are very tall engines as you say.
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quinnj3
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| posted on 25/3/08 at 11:52 AM |
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what about toyota engines what direction do they turn as it may be easier and cheaper to get a rwd toyota gearbox and get a local engineer to fashion
an adapter plate.? ps don't like the sound of toyota engines and lack of torque hense mating the 'box to a honda engine.
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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RK
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| posted on 25/3/08 at 12:02 PM |
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Toyotas are fine. In fact I have a 22RE from an 84 Celica with a very good, just rebuild gearbox. The motor had 180,000 kms on it, and ran very well
when I scrapped it last year. You can have it. All you have to do is come and get it here in Canada...
Hey, I'm just making room!!!
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quinnj3
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| posted on 25/3/08 at 12:15 PM |
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yeah i know they are ultra reliable but do toyota engines turn the same direction as a honda engine ie backwards. if they did it may be possible to
mate my h22a engine with a corolla rwd 'box. or even better a modern is200 box? maybe
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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MikeRJ
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| posted on 25/3/08 at 12:46 PM |
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No, Toyota engines turn in the conventional direction. Few if any mainstream manufacturers makes backwards engines other than Honda.
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quinnj3
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| posted on 25/3/08 at 12:51 PM |
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ok thats that idea out the window. was just looking peoples opinions anyway. Would be a fine engine if it could be done. Quite torqey and when the
vtec kicks in it pulls like a train. even in a heavy car that the prelude is. I'm not fully set on the kit i'm after yet anyway. I
don't think ill go for a 7. I'm swaying towards WLR, nice agressive bit of kit. I've seen an omega v6 fitted to a locost before
and as this car is based on a locost would be another fine engine to fit to it.
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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Fatgadget
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| posted on 25/3/08 at 01:36 PM |
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Or commision a camshaft grinder to make you up a new cam ! Its been done before apparently. On Chevrolet Corvair engines used in left hand oval
racing.
[Edited on 25/3/08 by Fatgadget]
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Dingz
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| posted on 25/3/08 at 01:42 PM |
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General rule of thumb is looking in the engine bay of an east/west fwd. from the front, if the gearbox is on the right, engine rotates the
conventional direction. Gearbox on the left rotates the wrong? way. I have a 2.2 Vti too, super motor, very flexible and smooth.
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quinnj3
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| posted on 25/3/08 at 01:57 PM |
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yep would be an ideal engine if it could be fitted. I think reprofiling the cams would be more expensive than buying s2000 running gear. Plus the
s2000 revs to 9000 rpm standard. Now that would be nice hearing a honda vtec sreaming to be thrashed.
my aim is to build my own locost wether it takes me a week or 10 years to get started, i'm sure i will sometime
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dmac
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| posted on 25/3/08 at 07:32 PM |
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Has anyone ever used a complete FWD engine/gearbox/diff unit fitted longitudonally with propshafts from the centre diff driving front and rear axles
for 4WD?
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MikeRJ
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| posted on 25/3/08 at 07:39 PM |
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quote:
Originally posted by dmac
Has anyone ever used a complete FWD engine/gearbox/diff unit fitted longitudonally with propshafts from the centre diff driving front and rear axles
for 4WD?
Gearing would be unusably low unless you could find a handy source of 1:1 diffs for front and rear.
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