intake manifold adapter 40mm

[juanb]

Hello,

i'm building a M20 engine for a 325i rallye car, and i'm searching an intake manifold adapter in 40mm to fits ITB's in it.

I think that 40mm it's the best for this engine, but i only find the dbilas adapter in 45mm.
I had send a mail to Rowland to know the interior size of his manifold, but not answer at the moment.

I have spoken with e21jps, and he says to me that he has heard that there are some available, but that he don't know where.

If someone knows where i can find this....

Many thanks
Juan

[reggid]

make one from std manifold + weld ?

[juanb]

Yes, i think that it's what i go to do.

I have here an used intake manifold of a 731 head.I go to work with it.

Anybody knows the lenght of throttle bodies??like the jenveys??

[juanb]

I have found the leght of the jenveys, 118mm