<font face="Verdana, Arial" size="2">Originally posted by RODS92Z: |
YOur right up my alley. Whats the best way to porting. I figure your right with the eight hours, with all the crap in there. Looks like all day friday and Saturday morning. Thank god I have those days off. Dont want to do it after the paint, I can here the scratch right now thinking about it. Thanks.
IMO, there's only so much you can do...plenum EGR wals, blend back the plenum to runner holes...not much to the runners, maybe radius them a bit on the mounting area...they're really too think to do much with.
As far as the base goes, at the very least match the openings to the heads...they should be just *slightly" smaller on the base side, than the intake ports of the heads.
I used a bottle brush hone...it looks like a cylinder hone, the kind that has all the fat bristles on it, but it was a small one...found it at a dairy when I was a kid, used for cleaning something there...but the good thing about it is the flexible shaft..I ran it though the intake ports on the base to sorta smooth the flow path out.
I wasn't too worried about makeing the intake flow like a aftermarket base, because the intake ports on my heads are probably the worst I've ever seen...a few had a triangle looking shape to them.\
Anyway, as you're cutting out the Aluminum, go slow and easy..too little is better than too much.
Another tip...stick your shopvac into the opposite end of the port while you're die-grinding or dremmeling...keeps all the mess in the vac, instead of the shop and on you.