Just looking for those of you who have done porting on their intakes/heads at home. Looking to see what exactly u touched up and what u used. Im looking to expand my abilities
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:SNSign:
Home porting guys come in with tips and tricks....
- Thread starter nmcgrawj
- Start date
DFG 5OH
Active Member
Looks like a good read....ill get to it.
Zero Signal
Active Member
Here is a link to an article I used when doing mine. http://www.sa-motorsports.com/diyport.shtm
I also had a bunch of advice from a local engine builder. When I get off work tonight I'll elaborate some more. I have a couple pics of my finished exhuast ports too.
I also had a bunch of advice from a local engine builder. When I get off work tonight I'll elaborate some more. I have a couple pics of my finished exhuast ports too.
DFG 5OH
Active Member
i've looked into this for myself, i just hate doing my first job on my "good heads," i'd rather try it first on some old heads, then work on mine. I DID find some cutaway pictures of some GT-40p heads that showed how much you could port before you hit the waterjackets and stuff.
Nate
Its been so long ago but to the best of my memory, here is what I did on E7's
Reduce the I vg by about half its original size. You can shape it kinda like a tear drop to help air flow btw.
Take the E vg down flush with the roof
Take the thermactor bump down flush with the roof
Raise the E port roof a good bit. IIRC, mine were close to straight with very little dip in the roof.
Widen the E port a good bit
Don't hose around with the floors of either ports
Don't touch the short turn radius
Smooth the bowl transitions to the ports
Polish the chambers
If using the stock valves, have them back cut for a bit more flow
Just work on the first I & E port, bowl, & chamber until you are satisfied.
Take measurements, make notes, etc and then
Just do that same thing seven more times
Trust me ... Lotta Work
Ain't worth it to me
Grady
Its been so long ago but to the best of my memory, here is what I did on E7's
Reduce the I vg by about half its original size. You can shape it kinda like a tear drop to help air flow btw.
Take the E vg down flush with the roof
Take the thermactor bump down flush with the roof
Raise the E port roof a good bit. IIRC, mine were close to straight with very little dip in the roof.
Widen the E port a good bit
Don't hose around with the floors of either ports
Don't touch the short turn radius
Smooth the bowl transitions to the ports
Polish the chambers
If using the stock valves, have them back cut for a bit more flow
Just work on the first I & E port, bowl, & chamber until you are satisfied.
Take measurements, make notes, etc and then
Just do that same thing seven more times
Trust me ... Lotta Work
Ain't worth it to me
Grady
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