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 BMW 2cv engine conversion "2.0" 
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Firing on two.

Joined: August 19th, 2013, 7:16 pm
Posts: 123
Post Re: BMW 2cv engine conversion
So any sources in the UK for bellhousing and shaft to mod my gsa box?


October 22nd, 2014, 8:34 pm
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Joined: January 5th, 2009, 5:48 am
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Post Re: BMW 2cv engine conversion
The visa club and lna were rare in the uk when they were current, a French scrappie is your best bet.

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October 22nd, 2014, 9:53 pm
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Joined: January 16th, 2010, 5:15 pm
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Post Re: BMW 2cv engine conversion
I recently checked

Ami Super and Visa bell housing are the same length.

this week i hope to build a new gearbox mounting for Ami super 4 speed type box
for my raid chassis so will post a picture when done

BMW motor revs to 9000 i think!
power really comes in at 7000!

pony

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October 22nd, 2014, 10:06 pm
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Post Re: BMW 2cv engine conversion
Those revs might be for the 1100S, my 1150R red lines at 7500 with power coming in around 5000.

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October 22nd, 2014, 11:02 pm
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Joined: January 12th, 2010, 10:33 am
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Location: Koudekerk ad Rijn, Netherlands
Post Re: BMW 2cv engine conversion
Depends what you want to use it for. If you want a comfortable daily driver you might concider a box with longer ratio, if you want to go racing, you might like something else. All also depends on what kind of engine you are going to use, how much power and torque. Don't forget beemer engines do much higher rpm then a standard 2cv engine. So even with a standard 2cv box you go faster.

But check out teh website of jeroen cats, he has a list with all availible boxes and a tuning calculator so you can calculate what the optimal configuration is for your car.

Greetzzzzz

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October 23rd, 2014, 8:13 am
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Joined: August 19th, 2013, 7:16 pm
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Post Re: BMW 2cv engine conversion
Doesn't a 602cc peak power 7000rpm? The 1100 BMW R series makes peak at 7250rpm so only marginal rpm gain.


October 23rd, 2014, 1:30 pm
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Post Re: BMW 2cv engine conversion
No, definitely not, 5750rpm is peak power for a 602 according to haynes. The BMW depends on which bike it comes from, R and GS are tuned for torque, RS and RT are slightly revier, and the 1100S being revier still.

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October 23rd, 2014, 3:21 pm
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Joined: August 19th, 2013, 7:16 pm
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Post Re: BMW 2cv engine conversion
Joolz wrote:
No, definitely not, 5750rpm is peak power for a 602 according to haynes. The BMW depends on which bike it comes from, R and GS are tuned for torque, RS and RT are slightly revier, and the 1100S being revier still.


In that case then a good extra amount of rpm.

Got my crank spacer made today so getting there, mod flywheel next to machine.


October 24th, 2014, 7:25 pm
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Post Re: BMW 2cv engine conversion
After some m11x1.5 cap bolts 85 mm long, can anyone direct me to a source? I know alit of head bolts are m11 but dont know a car that runs them the correct length I need. Google search brings up hardware places in the USA and nothing in UK.


October 26th, 2014, 1:24 am
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Joined: November 8th, 2009, 5:42 pm
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Location: NL
Post Re: BMW 2cv engine conversion
i don't have 85mm either, but you can shorten them on a lathe.... I guess

http://boelm.nl/cilinderkopboutset-10-stuks-049103384b-m11x1-5x96.html

downside of these, you need a special key to fasten them and the heads are very big... They do fit the crankshaft, but didn't test them in height yet...

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October 26th, 2014, 1:42 am
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