Afternoon chaps and chapettes

I've been floating about for a while but just registered as I now need some advice on a couple of things.

I've got a 1987 BMW e30 which has a 1.8 carb engine in at present.

I've recently bought these bike carbs off ebay
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=220176635741&ssPageName=STRK:MEWN:IT&ih=012

The lpan is to stick those carbs onto the 1.8 carb engnie as its a bit wheezy and they were a sight cheaper than the twin webers I was looking at!

So, from what I've read my plan is:
Clean the carbs
Use the fuel pump from the fzs600 bike the carbs came off
fit the carbs
fit ss 4-1 manifold

I was wondering if anyone would be able to tell me what size jet I should be using for teh 1.8 BMW engine (M10). I think it should be about 1.7mm but not 100%

Also, if I use the bike fuel pump will that supply the correct psi of fuel for the carbs?

Thanks in advance for any advice

Cheers

Sorry, cant help with jets for BMW engine.

Bike pump should work just fine. I used ZZR1100 carbs on my pinto and the 1000cc bike pump works a treat.

You will need a manifold. If you get one off Boggs they will probs advise initial jetting etc. There may also be some air holes to block off. Your only issue with getting a manifold made is that if the company you choose hasnt done a BMW M10 before they may need your car.

You may find a BMW tuning forum as well with some good advice.


Whatever initial settings you do go for, id strongly advise a RR tune by someone who knows bike carb conversions. I had my engine running and with a improvement in performance but it was weak. After tuning it was far better. I wouldnt want you to wreck your engine.

[Edited on 28/11/07 by DarrenW]

I'm not sure that this is the best place to ask about setting up this engine as it is not a common choice in a Locost - they are a bit heavy

Maybe a bmw forum?

Thanks for the info

I asked on ppcmag.co.uk/forum and they pointed me in this direction and after using the search function a few times it looked as though a few folk had used bike carbs on thier builds

I was going to have ago at making my own intake and exhaust manifold as we have a failry well equipped metalwork factory at work with lads to help.

I'll get the pump off the bike though to be on the safe side

and will give bogg bros a ring too

Cheers people

Hi i have zx9r carbs fitted to a 2.1 ford pinto and the jets are 1.7mm so 1.7 may be a bit big for a 1.8l engine + as Darren says some air holes may need blocking off
Have a look in my photo archives under zx9r carbs it may help you when making a manifold
+ put a location were you live you may be local to some one who has done this mod

Jacko