Home porting an intake manifold
hahaha! 
Staging Lane
Joined: Jul 2007
Posts: 73
Likes: 0
From: fresno, ca
Originally Posted by nesikachad
Some say that rough ports are to promote atomization of fuel. Well, that may be true and it would shoot us all in the foot because LS intakes run dry unless we are shootin' meth or nitrous/fuel down them.
C
C
on carburated engines however your manifold should not be polished or your fuel will seperate from the mixture. this is the big problem with the wet nitrous kits and plastic manifolds due to the fact that the plastic is relatively smooth compared to an aluminum casting. the fuel drops out of the mixture and ignites in "puddles" and boom!
Registered User
Joined: Nov 2007
Posts: 1
Likes: 0
From: kansas city
there are a couple things you can use. one is called a pencil grinder it is an air tool that at 90psi constant runs at 52,000rpm (about 70bucks) that with a 1/8" shank double cut carbide burr will work great but follow up with a flapper( dia grinder, 1/4" dia x 6-8" long with a 1 1/2" - 2" slit at the end bar stock, 1" - 2" cloth backed roll of sand paper. home made flapper!!) to smooth it out.
