DIY plenum porting
#463
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Join Date: Apr 2007
Location: Miami, Fl
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#466
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I'll try to keep this alive, would be great if some of the people who inspired me could come back and give us all a check up...
Casting Surface
Big casting flaw
Grinded off the top of the front runners
Before I started grinding
After around 30 mins
more than an hour of grinding at 80 grit
another 30 minutes at 120 grit
attempting to grind around the curve
Casting Surface
Big casting flaw
Grinded off the top of the front runners
Before I started grinding
After around 30 mins
more than an hour of grinding at 80 grit
another 30 minutes at 120 grit
attempting to grind around the curve
Last edited by SexyRob; 11-25-2009 at 08:23 AM.
#474
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got the surface prep kits at lowes/homedepot near the air compressor equip
this is still a work in progress. I have a dyno day scheduled on the 13th of December where I hope to have a before and after reading. I will compare the stock Throttle body>Upper Plenum>Lower Plenum>Runners to my modified versions.
this is still a work in progress. I have a dyno day scheduled on the 13th of December where I hope to have a before and after reading. I will compare the stock Throttle body>Upper Plenum>Lower Plenum>Runners to my modified versions.
#478
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which kit did you go with?
http://www.summitracing.com/search/?...porting&page=1
Also, what was the final grit that you used? Im thinking to leave the whole thing a little rough, like maybe 120 grit....
http://www.summitracing.com/search/?...porting&page=1
Also, what was the final grit that you used? Im thinking to leave the whole thing a little rough, like maybe 120 grit....
#479
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think its this one, http://www.summitracing.com/parts/SAI-260006/
didn't really check to see how much to bring it down, I just did what looked right. I was conservative in my decision since I figured a little was better than nothing but too much could be very bad.
I'm not done yet but I think I will finish off with 150 or 220 by hand.
didn't really check to see how much to bring it down, I just did what looked right. I was conservative in my decision since I figured a little was better than nothing but too much could be very bad.
I'm not done yet but I think I will finish off with 150 or 220 by hand.