Uber modified stock evo intake manifold vs DI SMIM

[asshanson]

This sounds like what my friend is doing for his independent research project at Iowa State. I've given him a 1g and 2g manifold for testing, and he's basically taking stock ones, cutting off the plenum and a few inches of runner length, porting them, then adding a new larger plenum. However the new plenum isn't bored out stock like this, he welds on a sheet metal style one. The resulting TB location is very close to stock.

He thinks that for most street cars the current SMIM offerings have too short of runner length, but you can't really get around it unless you use cast aluminum for a curved runner. So he's going this route for a more street-optimum RPM range manifold. I'm pretty excited to test one out on my car vs. the JMFAB intake.