swap 320/6 crankshaft 324td ( eta) for 324/6

[minicien]

hello,

I want to make this change: http://e21.tricord.be/binaries/other/M2 ... cement.pdf

how about this swap?
have already done?

thank you for your return.

[BertjeConti]

I think it's a lot of effort to gain a little in horsepower and torque.

Getting custom made pistons and a diesel or eta crank don't come cheap.
The Solex 4A1 is a pain in the !@#$! already, so don't expect much more from it.

i' think you'll get better results by swapping the 320/6 head and carburettor for a E30-M20 head with all the motronic ancillaries, and its for shure a lot cheaper and more economic.
or go this route:viewtopic.php?f=3&t=21955#p231391

[croma_man]

buy the 2.7 eta intake manifold with motronic and some chinabay exhaust headers, thats the most you can do with the B20 engine.

[Jeroen]

Please give us some more details on what you're trying to achieve. Max gain while retaining the original engine block, or perhaps even the entire engine? Or a cheap solution for more power, or just more mid range torque perhaps? There are many, many options.

[minicien]

I want to improve my m20b20 block carburateur.1) at first it would be to spend a 2,4l eta by the crankshaft with 81mm stroke. I will also use the links forged 130mm and original 2.3L 80mm piston diameter of 2.1mm resize to reach the block plan pmp. I do not want to block bore. I want a power gain and couples. this change is very rare in France. I'm looking for people that have made this change.