Paul (Notts)
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| posted on 2/7/09 at 07:29 PM |
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Twin motorbike engined
Has any body got any info or links on how to set up twin motorbike engines in a seven.
Looking for info on the transfer box but cant find any links.
Paul.
cant find any link to z cars transfer box.
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grusks2
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| posted on 2/7/09 at 07:33 PM |
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Z-cars did the tiger one
http://mac1worxbuild.wordpress.com/
forgot my old password so another username doh
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JoelP
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| posted on 2/7/09 at 09:43 PM |
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in the tiger, the engines were both orientated the same was as per a normal bec., with the prop of the front one just clearing the gearbox on the rear
engine. Rather than a transfer box, you could use a jack shaft as per the rear engined ones, with the front engine connected via a sprocket adapter
and a U/J and the rear one via a chain and the two front sprockets (one on the output shaft and one on the jack shaft). This would remove the issues
of oiling and cooling.
Beware! Bourettes is binfectious.
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NS Dev
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| posted on 3/7/09 at 06:22 AM |
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Z cars also built a twin engined westfield which DID use a transfer box, in fact it was the first one they ever built, many years ago.
They had a box made which combined the outputs of the engines laid out as per joel's description
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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eddbaz
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| posted on 3/7/09 at 08:19 AM |
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Remember looking at a price list of the tiger z100 years ago and the transfer box cost £2800 then, ouch
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MK9R
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| posted on 3/7/09 at 08:31 AM |
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has anyone done a twin engined mid engine car, you could run the chain to from each one to the opposite sides of diff?
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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speedyxjs
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| posted on 3/7/09 at 12:00 PM |
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quote:
Originally posted by MK9R
has anyone done a twin engined mid engine car, you could run the chain to from each one to the opposite sides of diff?
Someone on here the other day showed a pic of a twin middy (cant remember who though  )
[Edited on 3-7-09 by speedyxjs]
How long can i resist the temptation to drop a V8 in?
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tweek
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| posted on 3/7/09 at 05:24 PM |
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Probably a silly question but could you have one engine per wheel with the outputs controlled electronically a la traction control-ish?
Or would that be ridiculously difficult?
[Edited on 3/7/09 by tweek]
"oh dear..." said god,
"I hadn't thought of that"
and promptly vanishes in a puff of logic
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flibble
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| posted on 3/7/09 at 07:42 PM |
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quote:
Probably a silly question but could you have one engine per wheel with the outputs controlled electronically a la traction control-ish?
Isn't that what Russbost(sp?) on here has in his Furore
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Paul (Notts)
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| posted on 3/7/09 at 08:07 PM |
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Looking to put two bike engines in the front of the viento and drive a prop to the rear diff.
two year plan so now need to start collewcting and planning.
Paul
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welderman
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| posted on 3/7/09 at 08:22 PM |
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ive been thinking about this for years
 
Rescued attachment T1twin.jpg
Thank's, Joe 
I don't stalk people
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=172301
Back on with the Fisher Fury R1
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ss1turbo
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| posted on 3/7/09 at 09:23 PM |
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What would be the best way to join them together? Chain/direct connection, or using some sort of LSD in reverse (i'm think the back end of a
4x4 sierra box, but in reverse)?
Unless the power outputs were matched, i'm not so sure it would work driving a rear wheel each?!?
Long live RWD...
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jpindy3
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| posted on 3/7/09 at 09:42 PM |
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dont anyone know how tiger do it,
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daniel mason
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| posted on 4/7/09 at 04:06 PM |
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i was actually watching the 5th gear episode with tiff in the z100 the other day. you could change gear on each engine seperately or at same time,with
a split gear stick and 2 rev counters on digital display. quite smart until he blew an engine!
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tweek
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| posted on 4/7/09 at 10:28 PM |
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quote:
Originally posted by flibble
quote:
Probably a silly question but could you have one engine per wheel with the outputs controlled electronically a la traction control-ish?
Isn't that what Russbost(sp?) on here has in his Furore
Good call! Thanks!
Took a look at the site but unfortunately it doesn't contain much detail on how he actually did it. Hmm, it would probably be ridiculously
complex to do effectively - I'd be wanting one ecu, one gearhift lever controlling both boxes etc.
A bit over ambitious given that I haven't built anything yet and am no closer to being able to. Good to dream though, that furore sounds like
fun.
"oh dear..." said god,
"I hadn't thought of that"
and promptly vanishes in a puff of logic
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eccsmk
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| posted on 4/7/09 at 10:57 PM |
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tiff in the z100 here
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Liam
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| posted on 4/7/09 at 11:36 PM |
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I'd be surprised if the tiger engine combining box is anything more than two input shafts directly geared to a single output shaft, in a bath of
oil. You'd definately not want differential action (i.e. a diff in reverse) as if one engine produces a little more power it could easily
overspeed forcing the other engine to underspeed and bog down. In fact it'd be horribly unstable and you'd never get the engines running
together properly. All you want is them both directly driving a common output shaft as above so that they have to run at the same speed (assuming
you've got the engines in the same gear). Think BRM H16 - two flat 8s one on top of the other, crankshafts geared together onto a common
output.
To be honest, though, I reckon you'd be better off putting the money and time into a single turbo Busa engine or similar. Lighter, simpler,
probably cheaper and probably more reliable.
Liam
[Edited on 4/7/09 by Liam]
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flibble
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| posted on 5/7/09 at 10:24 AM |
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Decent pic HERE of a trasfer box, knew i'd seen one somewhere years ago! (under
modificaions. Xfer box).
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stevegough
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| posted on 5/7/09 at 12:47 PM |
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If you get it set up correctly, with one engine driving each wheel, you could do away with the conventional steering wheel and replace it with two
throttles which would perform the steering for you !!! 
Might go through tyres quickly, though!
Luego Locost C20XE.
Build start: October 6th 2008.
IVA passed Jan 28th 2011.
First drive Feb 10th 2011.
First show: Stoneleigh 1st/2nd May 2011.
'Used up' first engine may 3rd 2011!
Back on the road with 2nd engine may 24th
First PASA mad drive 26/7/11
Sold to Mike in Methyr Tydvil 19/03/14
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