casianig
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| posted on 18/3/14 at 01:50 PM |
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locost 7 build HELP !!
Hello, im new here and would like some help please.
I am starting a Locost 7 build and i would like to use a Yamaha R1 engine. The only problem i have and cannot find an answer for is how am i going to
get my r1 front mounted engine to power the rear wheels??? Can i mount the engine sideways and get a sprocket to link to a driveshaft ??? Is that
possible at all? Thank you for your time guys !
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Shandylegs
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| posted on 18/3/14 at 01:58 PM |
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There are many ways to mount the engine, but your assumption is correct in that the usual method is to turn the engine so the cylinders are in line
and connect the propshaft via an adaptor to the bike output shaft.
Not trying to dampen your enthusiasm, but if you need to ask that question perhaps a little more reading up on here would be in order.....
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casianig
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| posted on 18/3/14 at 02:05 PM |
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Thanks for the quick reply. You are right about me having to read some more ... have done research about mostly everything else, but was stuck on
this for the past 3 days, but thank you for putting me at easy a little. Now i have some sort of idea by the time i get to that ill be able to get
some more info on here. Thanks again Shandylegs
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jossey
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| posted on 18/3/14 at 02:27 PM |
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I have a fireblade engine. Front engined tiger avon rear wheel drive.
Cheapest way was to use a sierra rear end (diff, shafts , hubs )
Then use a prop to attach the engine to the diff using a prop adaptor from http://www.sprocket-adaptors.co.uk or many others.
I got a prop made from a company in Leeds.
http://www.dandfltd.co.uk/
You can get a sierra one modified too.
My first prop and adaptor I bought second hand but was too small and only cost £50 so keep an eye out you may find a cheap one. (Get it balanced if if
ain't)
Some are now using bmw rear ends as differentials for the sierra for bike engines are not easy to find these days. I use a 3.38 diff and some use 3.62
ratios
Get yourself to a track day near you and look at one :-)
Thanks
David Johnson
Building my tiger avon slowly but surely.
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casianig
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| posted on 18/3/14 at 02:37 PM |
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Thanks David.
I am planing on using a bmw rear diff e36 to be more exact, and drive shaft as well, because i would like independant rear suspension. As for the
driveshaft I was think of mounting the engine sideways and then just fabricate a flange to fit over the sprocket and then the driveshaft would bolt on
the flange, that would be mounted on the sproket itself. Do you think that could work?
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kj
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| posted on 18/3/14 at 02:47 PM |
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If you put your location someone may be near for you to have a look
Think about it, think about it again and then do it.
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casianig
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| posted on 18/3/14 at 02:56 PM |
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I'm sorry i skipped that part in the registration, i am from constanta, Romania. I have not started the build yet, i was just making sure i can
do it with a motorcycle engine/driveshaft. I already bought most of the materials i will need for the build, steel, wheels, seats, suspensions,
steering rack and steering assembly. I am starting the build in a couple o days and i know its going to be a while until i get to the rear end but i
just wanted to make sure that i can do it. Thanks again for your help. Much appreciated!
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kj
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| posted on 18/3/14 at 03:04 PM |
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if you look under BEC on the forum index and look in members photo archives you will get some idea of the set up.
Think about it, think about it again and then do it.
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casianig
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| posted on 18/3/14 at 03:13 PM |
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Thank KJ, did not know that. Doing that right now.
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casianig
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| posted on 18/3/14 at 03:26 PM |
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Thank you very much guys for your help.
Thanks KJ for telling me about the photo arhive, i have found a pictures that shows me exactly what i need.
THANK YOU !!!!
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Canada EH!
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| posted on 18/3/14 at 04:39 PM |
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Are you building a Locost or a Haynes roadster, in your location it may be easier to use a live rear axle, building a Locost in Canada has many
similar problems as rear drive Escorts, and MK 3-5 Cortinas, or Sierras were not sold here therefore no cheap parts.
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casianig
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| posted on 18/3/14 at 05:26 PM |
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Yea it would be easier to use a live axle setup, but i would really like independent suspension. I am going to use a bmw e36 rear diff with e 36
driveshaft and e 36 axle joints, this way everything should fit nicely together +- minor adjustments, i think.
I am building a locost, but its going to have a removable hard top and the body i would like to do something like the donkervoort d8 gto because i
like the design and have been working with fiberglass for couple years. The part that i didnt know how to do, or fit together was the driveshaft to
the motorcycle engine.
I have seen sime pics in one of the users gallery, how he connected the driveshaft it's pretty straight foreward. From what i can see in the
picture he has the engine mounted sideways and the driveshaft connects straight into the drive axle of the engine. So from what i understand from
that pic is that i will need to fabricate a flange that will connect the driveshaft to the drive axle.
Thank you again everybody for your help !
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jossey
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| posted on 18/3/14 at 05:51 PM |
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Rather than fabricating an adaptor to fit the over the sprocket just buy a sprocket adaptor much safer and easier.
Mine has independant rear suspension but the BMW rear end will work just needs more modding than the sierra I think.
Just do your research before wasting time or money.
Get the engine over to the side of the engine so the sprocket is almost inline with the rear diff.
Thanks
David Johnson
Building my tiger avon slowly but surely.
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casianig
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| posted on 18/3/14 at 06:11 PM |
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Yeah your probably right david but unfortunatly in Romania there are no sierra's.  )
I noticed on ebay.uk that they are pretty cheap (like 80 pounds) and the axle joints too ( 15-20 pounds) but the shipping will kill me if they will
even ship here.
And about the adaptor your right as well, will probably waste lots of time and end up buying it anyway.
So therefore i figured that the bmw rear would be the best choise, i know there will be some modding, lots of modding on lots of parts, ive been on
youtube and reading forums for about 3 weeks now, and this is going to seem funny but i never tought about connecting the driveshaft ) noob.
This will be a pleasant learning experience and i bet that i will be on here more often with more question as i start my build. Im glad that i have
found a place with people experienced with the building process of the locost.
Thank you .
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jossey
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| posted on 18/3/14 at 06:59 PM |
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glad your finding the site helpful.
Just be mindful that a lot of the responses you will find are peoples experience and "some guessing" The collective is good but I know
when you ask a simple question you can get a lot of varied answers.
Have you bought a copy of the build a sports car for £250?
http://www.amazon.co.uk/Build-Your-Sports-Little-Pounds/dp/1859606369
That is a good read if you know very little. Then decide on the running gear and find people on here who have the e36 and see how they did it. This
site has been a great help to me and people will send me pictures or let me go look at the cars and take measurements etc.
You should come over to the UK to some of the events. Flights will be cheap enough and im sure someone would get you from an airport. If you wanted to
come to Stoneleigh etc I can collect you from Doncaster airport or something.
a lesson I have learnt is if a new part is as cheap a 2 second hand ones. BUY new.
If you compromise it will cost you more in the long run.
If you think there is a short cut. THERE ISNT!!!!.
If you think you can make something fit (It probably wont)
Hope this helps.
David
[Edited on 18/3/14 by jossey]
Thanks
David Johnson
Building my tiger avon slowly but surely.
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casianig
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| posted on 18/3/14 at 07:09 PM |
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Thank you david for the help you are providing. Maybe one day ill come out there to at least one of the meets, flights are cheap i know but finding
the time is the issue. But soon enough who knows what the future might bring. Always wanted to visit the UK.
About the parts you are also right, in the long run it will same me money, time and hassle of changing parts, but this one being my first i will try a
low budget build the first time. The second one will be all brand new parts, keep it as a sunday driver .
Good to know that there are people that can help.
Thanks again and most likely i will be back here with a question soon enough
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