Ok, I started to port my plenum and I took down the floors that stick up. Now, do i have to port the runners ???? Is it supposed to be done also? How hard is this? Any where that gives a detailed explanation? How do you gasket matched runners to the plenum and intake?

Should I port the sides of the plenum also? It looks like it supports it from collapsing.
What is base porting?
thanks

[This message has been edited by theformula (edited October 08, 2000).]

 

Theformula,

I think this question might get more answers in the “TPI Forum” so I am moving it there for you.

 

I would do the runners while you have them off. Knock down the wall in the runners where the tubes are attached to the mounting flanges. It may not seem like a lot but take the amount of material you remove and times it by eight and it adds up.

------------------
Rob P
89RSconvtZZ4TPI
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

 

See my efi page. There's some pictures you can follow there.
http://www.isthq.com/~dan/efi.html


------------------
Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
1.05g skidpad verified.
New best E/T! 14.039 at 100.82 MPH in 41 degree air at Stanton, Michigan.

 

http://www.tribal-treasures.com/cars...-port/port.htm

 

Ron,
Nice site there. That polishing job on the upper plenum is nice! Makes me want to pop mine back off and re-do it, or perhaps find an extra one to do. WOW!

------------------
Rob P
89RSconvtZZ4TPI
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

 

Take this link: http://members.tripod.com/~Proformula/porting.html
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Looking for:

87 IROC-Z L98
84 TRANS AM H.O.

[This message has been edited by IROC-ZTWENTYGR8 (edited October 09, 2000).]

 

well its all done. I only took down the restrictive floor. Not the sides. What kind of performance difference can I expect from just doing that.
thanks for the responses guys.

 

10 horses at the most...