TPI porting
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From: altered state
St. Jude Donor '05
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From: IL
intake
Where the runners bolt to the intake how deep did you cut down the center web between the ports? I am thinking of going down 2" deep and about 3/4" tall and then radius the edge of the cut. Can you explain what you did?
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by Insane1
Yes, I siameased and port matched my plenum/runners/intake and it was good for about 25lbs rwhp and 21lbs rwtq on the dyno
Not calling b.s., but I'd like to see that.Anyhow, I siamesed the plenum and dremel'd these out.
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Originally Posted by Insane1
Yes, I siameased and port matched my plenum/runners/intake and it was good for about 25lbs rwhp and 21lbs rwtq on the dyno
On a stock engine youre not going to see anything,and if youre lucky maybe a few ponies.
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From: altered state
St. Jude Donor '05
Originally Posted by CentralCoaster
How about I send you my new (new to me) edelbrock base and untouched set of stock uppers, and a blank rubber check? You got all the tools man.
Hey, how did you get your head inside the plenum in that picture? Cool view.
Le Mans Master
Joined: Feb 2000
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From: Kempner Texas
Originally Posted by black85vette
Where the runners bolt to the intake how deep did you cut down the center web between the ports? I am thinking of going down 2" deep and about 3/4" tall and then radius the edge of the cut. Can you explain what you did?
I actually wanted to COMPLETELY remove the dividing walls, but couldn't get the blade to turn the corner right near the center of the runners. The only way to get to that area would be to cut a section out of the runners, remove the walls behind that section, then weld it all back up.
Going from memory, I believe my runners still have about 1-1/2" of dividing wall remaining. All the rest is long gone (siamesed).
I did pretty much the same thing with the intake manifold, leaving about 2" of wall remaining just before the intake manifold runners meet the cylinder heads.
I remember writing down all the numbers as I did the porting and may have them around here, somewhere. If I come across them, I'll post them.
Jake
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From: IL
Originally Posted by black85vette
Where the runners bolt to the intake how deep did you cut down the center web between the ports? I am thinking of going down 2" deep and about 3/4" tall and then radius the edge of the cut. Can you explain what you did?
Pro
Joined: Jun 2004
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From: Santee Ca
Before...
After...
Ok, so I was a little off. Only 21 rwhp and 14 rwtq. Shoot me for not remembering correctly.
And no comments about the pathetic numbers I am putting out with this motor. What would you expect from a 8:1 motor? I plan on putting flattops in it and hopefully bringing the compression up to about 9.5:1
After...
Ok, so I was a little off. Only 21 rwhp and 14 rwtq. Shoot me for not remembering correctly.
And no comments about the pathetic numbers I am putting out with this motor. What would you expect from a 8:1 motor? I plan on putting flattops in it and hopefully bringing the compression up to about 9.5:1
Instructor
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From: Warren Michigan
T.p.i. Porting
Nice job,,I plan to do the same plus fill all those egr ports that are in the intake, with furnace compound which is like bondo then when put in oven it gets rock hard so all egr ports are soild no heat.. The air / fuel goes only down intake chambers..Just a thought Will It Work???? Will this help Please Respond Thank's Leo
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From: altered state
St. Jude Donor '05
Leo, I was told to use evercoat (?!), a fiberglass bondo in a wet/dry intake by a prominent porter out here to fill small holes, divots, things like that. Gas and heat doesnt affect it. Ill talk more with him tonight on it.
