Thanks guys but I think I have other issues....

First I think the 2cv carbs don't shut off enough for this BMW engine. So even with the butterfly closed as good as I can the engine is turning at around 2000 rpm.. The only solution I have is to give less advance say 0 degrees for iddling along and to lean off the iddle mixure, hopefully I will bring the rpm down that way....

Another (more serious issue) is that my right cilinder has much less compression then the left cilinder ( felt by the torque which builds up when turning the engine by hand..
The engine is comes from a damaged motorcycle, the right cilinder was in poor condition
so maybee it has something to do with that...

Another possibility would be that there are some leaks in the welds of my selfmade inletmanifolds so air is sucked in giving wrong readings/running....

However this engine is great, just a small amount of throttle for a split second and the engine revs op to 6000 rpm and more... Doing the same to a 2cv engine I think you wouldn't notice any rpm change at all .. So theres more then enough power in this bastard
and smelling the exhaust fumes I guess the arf numbers (air to fuel ratio) are good for a start....



Jasu does this count the air volume or the air pressure, airpressure I can do with 1-2-spark...

Volume. You can also do it with measuring pressure, but if you do it with your 1-2-spark you need two of these and make sure they have exaclty same readings when connected in same place...

With this meter was easy enough to tune three double-Webers, you can adjust how much this meter is restrictin airflow (adjustable by-pass) to have easier reading, regarding the engine speed when tuning. We first tried with pressure gauges, but with them tuning was much more difficulty.

If you get bored with the Beamer engine...

Doubt it...




...since he will probably be far too busy rebuilding gearboxes.

This is the best improvement over 2cv engine.
I guess it's the extra torque, I assume a lighter flywheel would make it more responsive on a 2cv, and shorter inlet runners.
interested to see how my supercharged visa responds, I better get off my ass...

The only negative of the bmw is the sump hangs below the chassis. Geo is that an issue for offroading? You could use your mill to remove the sump and weld in a flat pan and add a scavenging pump and dry sump system.

Harley

You can make it sit a lot higher in a 2cv.. Mine sits really low because of the bonnet line.

It is what you want... Putting it higher means even more stress at your drive shafts and a bulge in your hood...

Putting it lower means you need to make som protection underneath...

I've made mine that the front of the engine is about 1 cm free of the chassis engine beam.
Mine will go about 4 cm under the chassis, however it is still higher then the deepest point of the chassis.... I am thinking about some protection bars underneath we will see....

Today I finnished the adaptorplate, it needs only a little grinding and some (orange) paint..

When it fits my furnace I will powdercoat it.... I think it is more then strong enough to do the job.....

This week I want to mill the torx flywheel bolts to 16 or 17mm hexagonal bolts, so they don't stick out and get in the way of the clutchplate.... and then it's time to put it in a car....

Here some pics of the day...

re BMW sump
no good for off road as yes it is much to low in the chassis
Ask pete sparrow
he just killed his engine / sump when he hit a man hole cover in the road
not a lot of oil left for lubrication! most on the road!

PS Harley no chance to cut and weld shut, engine is split like a 2cv and
there are 2 oil pumps in there
pony

oh dear oh dear, he should have video'd that.... Probably his car is lowered and then it goes wrong.

I was just thinking the other day making some sort of cage just like I've done at my reardiff of my Ami. but then just left and right along the engine with a little skidplate in between..
should be fine then...

I know that Pete only makes 2 skid plates along the chassis... So no protection where it is needed..

@Harley, you are making the best possible configuration for offroading, yes using a compressor at your 2cv engine... If done right you will get around 55+ hp with lots of torque.... and you have also twinspark, I think you can retard the ignition to as less as 18 degrees when under full boost with twinspark and compressor...

I am doing this Beamer just to impress with my ignition, when I've done that I think I will also use a compressor with a bigbore engine... Probably the next project for my lathe, making a big bore 7 hundred something cc...