[Formulajones]

I'm not a casting guru but I tend to think it's probably an involved process to alter anything.

I agree, and I think if it were easy it would have been corrected along time ago. They've been this way since the beginning, many years.

I'm also betting that since a person has to supply an OEM casting, they aren't likely going to possibly sacrifice one of their nice versions, hence the reason we have a repop that mimics the OEM port misalignment seen on a lot of factory intakes. So we get what we get.

[rolling money pits]

Originally Posted by Formulajones

I'm not a casting guru but I tend to think it's probably an involved process to alter anything.

I agree, and I think if it were easy it would have been corrected along time ago. They've been this way since the beginning, many years.

I'm also betting that since a person has to supply an OEM casting, they aren't likely going to possibly sacrifice one of their nice versions, hence the reason we have a repop that mimics the OEM port misalignment seen on a lot of factory intakes. So we get what we get.

It’s quite involved, from initial design to, if needed, altering. I have no idea on how TPP casts, or has cast, the intakes in question. I’m only familiar with green sand/snap molding and using cold set for molds. Cores…cold set or shell cores.

I would assume the intake uses shell cores for the voids, would be darn near impossible to cold set them with any sort of consistency. The molds for shells cores (can) cost a fortune, ditto for the intake pattern.

When designing both, shrinkage needs to be taken into account, so one cannot simply “copy” an intake then cast it. I think cast iron has a lower shrinkage than aluminum. I believe there’s a formula to figure it out, depends on either weight/mass, length, or both.