Would a cast iron ramhorn manifold be too restrictive to flow & thus not be as efficient? Any views or personal experiences would be greatly appreciated; thanks in advance.


PS: I think it was discussed already as did a search & I found a page that may be "harmful for my computer" & so I didn't check it.

 

No, not necessarily, it all depends upon the power you plan to achieve, the turbo used, and the purpose of the car. DEPENDING upon the company used for the manifold, you could easily do 400-500whp on it. check out the differences in MANIFOLDS on the FAQs Sticky on the site.