Cam specs
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Darky

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Re: Cam specs
« Reply #15 on: October 09, 2016, 07:06:20 PM »
A e30 320is?
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sh123

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Re: Cam specs
« Reply #16 on: October 09, 2016, 07:09:33 PM »
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Darky

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Re: Cam specs
« Reply #17 on: October 09, 2016, 07:19:19 PM »
Ok I get it.

Nope you will need a e30 318is m42 inlet manifold and they are getting rare!
Because they are very good.
Now there are 2 parts to this manifold upper and lower. Lower I think is identical to the one you have but don't quote me on that I'm not 100% there.
I think the best way to do this would be to cut the runners on the lower part in such a way that the manifold will fit under the bonnet. Then weld the joining flanges on clean it up with a dremel. Bolt the uppper part on and bolt to engine!

Yes that's what I'm talking about increasing the throttle bore size, not uncommon at all!
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sh123

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Re: Cam specs
« Reply #18 on: October 16, 2016, 02:21:26 PM »
How aggressive cams will a standard e30 inlet be able to handle?   

Id like to copy metric mechanics rally cams. As my build is pretty much the same except i have higher compression.

So ive looked at catcams m44 cams

Catcams have:
255°/248° - 217°/209° - 10.50mm/10.00mm - 1.45mm/0.45mm
263°/256° - 225°/217° - 11.00mm/10.50mm - 1.70mm/0.70mm
306°/299° - 252°/244° - 11.45mm/10.95mm - 3.40mm/2.90mm

There is more aggressive ones but i still want to be able to drive this car  ;D

What are peoples thoughts? MM cams are 270 and 11.5mm lift or there abouts



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