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fwd donor
littlefeller - 9/5/11 at 08:51 PM

does anyone know of a way of using a fwd transverse engine for rwd, keeping in mind if i turn the engine through 90 degrees it is running backwards, is it possible to just flip the diff?


blakep82 - 9/5/11 at 08:56 PM

get a rwd gearbox that fits! thats how we all do it
how many ford zetecs or duratecs were rwd? none i think. i don't think ford do any rwd cars now, yet theres plenty of zetecs and duratecs in peoples cars here

or am i missing something?

[Edited on 9/5/11 by blakep82]


littlefeller - 9/5/11 at 08:59 PM

but i think maybe the zetecs crank runs in the oposite direction


blakep82 - 9/5/11 at 09:02 PM

nope. all engines run the same way, except some Jap angines. honda s2000 i think? vauxhalls, fords etc, all go the same way. i've got a vauxhall enigne with a sierra gearbox, and capri back axle, and its all good


Bare - 9/5/11 at 09:03 PM

Most all current engines rotate the same direction these days.. Even Honda's :-)

[Edited on 9/5/11 by Bare]


littlefeller - 9/5/11 at 09:03 PM

thats exactly it, honda vtec engine but could i just run the dif upside down


wylliezx9r - 9/5/11 at 09:04 PM

Certain engines do run in the wrong direction, civic type r for one. But zetecs dont', simply turn it 90, mate it up to a rwd box and away to go, well of course its not quite as simple as that lol


mcerd1 - 9/5/11 at 09:04 PM

there is an answer for any fwd donor - build a car with a mid-rear layout, then all you need to do is move the whole thing to the back without turning it

[Edited on 9/5/2011 by mcerd1]

[Edited on 9/5/2011 by mcerd1]


littlefeller - 9/5/11 at 09:06 PM

quote:
Originally posted by mcerd1
[Edited on 9/5/2011 by mcerd1]


change engine from transverse, or is there another way i hadnt thought off


blakep82 - 9/5/11 at 09:07 PM

ah, right, didn't know you were using a honda engine lol. what about a s2000 diff? that would work the right way for you

not sure turning say a sierra diff upside down is ideal. might work. would need a few mods (blocking breather, and making a new one. got a feeling the diff effectively running in reverse all the time (the input flange will be running the wrong way than it was designed to) it will wear out pretty quick...

think a rwd honda diff is the best way


austin man - 9/5/11 at 09:08 PM

My Zetec certainly runs the correct way as does the S2000 and most others Im sure its only the type r which is a problem hence it being fitted in the rear of the Atom so no problem with rotation


mcerd1 - 9/5/11 at 09:08 PM

I think the S2000 engine turns the right way (unlike most honda ones) it designed for rwd and its still a vtec

[Edited on 9/5/2011 by mcerd1]


littlefeller - 9/5/11 at 09:10 PM

i do like the whole engine backwards idea saving a shed load of work, been thinking along these lines originally. just wondering if anyone else had used a honda h22a engine in rwd layout


mcerd1 - 9/5/11 at 09:12 PM

quote:
Originally posted by littlefeller
just wondering if anyone else had used a honda h22a engine in rwd layout

yes, but as far as I know only in a midi with its own box


think of something like a car engined version of the new MK midi
or as far as existing kits go both the GTM Libra and marlin 5exi use honda fwd as donors...

[Edited on 9/5/2011 by mcerd1]


Dusty - 9/5/11 at 10:14 PM

You could always put the honda engine in the back, turned round, fit a prop to the front and use a sierra diff which would give front wheel drive but in the right direction.


littlefeller - 10/5/11 at 05:27 PM

its an intresting problem, supose if i build as mid i could use the existing box and drive shaftes


mcerd1 - 11/5/11 at 10:32 AM

^^ lots of reading to do in the midi section on this site

here's a few to get started with...

http://www.locostbuilders.co.uk/forum/26/viewthread.php?tid=133598

http://www.locostbuilders.co.uk/forum/26/viewthread.php?tid=82510

http://www.locostbuilders.co.uk/photos.php?action=gal&user=hughpinder&folder=hughpinder


adithorp - 11/5/11 at 11:26 AM

quote:
Originally posted by Dusty
You could always put the honda engine in the back, turned round, fit a prop to the front and use a sierra diff which would give front wheel drive but in the right direction.



coozer - 11/5/11 at 12:13 PM

Easiest way to tell if it will run the right way for rwd is to open the bonnet... if the gearbox is down on the right (most fwd cars) it goes the right way, if the gearbox is on the left (drivers side) it runs anticlockwise aka Rover 416.

All Ford engines run the right way and bolt up to a type 9. Apart from the Duratec which came from some where else....


Madinventions - 11/5/11 at 12:45 PM

Build a midi. Have a look at my build pages below which are for my Mojo build. This takes the complete engine/gearbox solution from a FWD and puts it at the back. Simple, and good weight distribution too.

Ed.


Madinventions - 11/5/11 at 12:46 PM


littlefeller - 11/5/11 at 06:11 PM

found a site in usa bout a guy building a lowcost style mid, this is what got me thinking of using my honda vtec engine, looked real cool. but this left me with a couple of problems, i was originally thinking of buying an older - sva'd kit and modifying it to take the engine. didnt realy want the complete build option. the second problem is i cant shake the image of that american build out of my head. and now just to make it worse, ive seen yours

[Edited on 11/5/11 by littlefeller]


littlefeller - 11/5/11 at 06:23 PM

quote:
Originally posted by Madinventions



hope you dont mind, just knicked some of your chasis pics.


Thinking about it - 11/5/11 at 06:27 PM

quote:
Originally posted by coozer
Easiest way to tell if it will run the right way for rwd is to open the bonnet... if the gearbox is down on the right (most fwd cars) it goes the right way, if the gearbox is on the left (drivers side) it runs anticlockwise aka Rover 416.

All Ford engines run the right way and bolt up to a type 9. Apart from the Duratec which came from some where else....


How that then Caterham use the 1.6 K Series. Im lost


britishtrident - 11/5/11 at 06:35 PM

Thing about midies is if the rear suspension is from a fwd donor it takes a great deal of attention detail to design out bump steer & roll steer.

Anything that will mate to a Rover PG gearbox is easy to convert to mid installation as Rover MGF & MG TF bits will adapt the gear change, the other simple way is choose an automatic donor.


mcerd1 - 11/5/11 at 06:36 PM

quote:
Originally posted by Thinking about it
quote:
Originally posted by coozer
Easiest way to tell if it will run the right way for rwd is to open the bonnet... if the gearbox is down on the right (most fwd cars) it goes the right way, if the gearbox is on the left (drivers side) it runs anticlockwise aka Rover 416.

All Ford engines run the right way and bolt up to a type 9. Apart from the Duratec which came from some where else....


How that then Caterham use the 1.6 K Series. Im lost
cause alot of the 416's had honda engines not a K
the 1400cc ones were k's...

the 200/400 rovers are concerto's in disguese, some had BL engines, some had honda ones and the oil burners had Pug engines......



[Edited on 11/5/2011 by mcerd1]


littlefeller - 11/5/11 at 06:46 PM

my donor is an auto, was gona covert it, but it wouldent realy matter as the honda auto box is real good, i quite like it (didnt think i would when i brought the car buying the honda was a must as i needed a car - quick).

[Edited on 11/5/11 by littlefeller]


mcerd1 - 11/5/11 at 09:33 PM

you could stick the engine and its own box in the front rotated 90 deg.

then connect one driveshaft to a diff at the back and one to a diff at the front = 4x4 :lol:


Madinventions - 11/5/11 at 09:49 PM

FYI: There's a Mojo for sale with a VTEC already in it...
Link to thread...

The Mojo was designed by Jeremy Philips of Sylva Autokits, and is now owned by Typhoon Sportscars, so you could always contact them and get a pre-built chassis if that's what you were thinking?

Ed.


Madinventions - 11/5/11 at 09:50 PM

Typhoon Sportscars thread

Ed.


adithorp - 11/5/11 at 11:37 PM

quote:
Originally posted by littlefeller
my donor is an auto, was gona covert it, but it wouldent realy matter as the honda auto box is real good, i quite like it (didnt think i would when i brought the car buying the honda was a must as i needed a car - quick).

[Edited on 11/5/11 by littlefeller]


"covert" an auto!


b14wrc - 12/5/11 at 11:53 AM





Go mid engined mate!