slp runners and ported plenum
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Joined: Mar 2007
Posts: 1,804
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From: Raleigh, NC
Car: 1988 Flame Red Trans am GTA
Engine: Forged 355 4 Bolt, FIRST TPI
Transmission: 700r4
Axle/Gears: ls1 torsen 3.42 gear
slp runners and ported plenum
does anyone have these two items if so how much do you want for them... i need those two parts...
Joined: Sep 2005
Posts: 235
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From: Elgin, IL
Car: 92 z28, 07 Silverado
Engine: LS1, 5.3
Transmission: T56
Axle/Gears: 3.73, 3.23
Re: slp runners and ported plenum
I have a set of SLP runners on ebay right now that are brand new, but no plenum.
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From: Jersey
Car: 88 iroc x 2- 1 T-Top, 1 Vert
Engine: 350 tpi, 305 tpi
Transmission: 700R4-2800 stall, 700R4 stock
Re: slp runners and ported plenum
I have ported plenums. What one do you need?-Mike
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Joined: Jul 2006
Posts: 811
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From: 4-22 / 7-25
Car: '91 Z28 L98 G92
Engine: Modded L98
Transmission: Modded 700R4
Axle/Gears: Modded 10-Bolt
Re: slp runners and ported plenum
Mike,
What are the modifications you perform when porting a plenum? Does the "Mega Port" process increase the volume of the plenum? (Please PM w/ details, thanx!)
P.S.: 88fastgta- if BBK releases their new TPI intake, there will probably be alot of SLP runners and plenums up for sale.
Myself, I want to keep stock plenum & SLP runners.
What are the modifications you perform when porting a plenum? Does the "Mega Port" process increase the volume of the plenum? (Please PM w/ details, thanx!)
P.S.: 88fastgta- if BBK releases their new TPI intake, there will probably be alot of SLP runners and plenums up for sale.
Myself, I want to keep stock plenum & SLP runners. Senior Member
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From: Jersey
Car: 88 iroc x 2- 1 T-Top, 1 Vert
Engine: 350 tpi, 305 tpi
Transmission: 700R4-2800 stall, 700R4 stock
Re: slp runners and ported plenum
Well, I clean-up and smooth out eveything. Two seperate dyno tests yeilded 9 and 15 HP increase on mostly stock motors. the Mega-Porting adds volume and that adds HP. It also extends the operating range quite a bit. As for that BBK set-up. When will it be done? 2010? LOL !!!! I was worried it might hurt my bussiness but it looks terrible, Most likely wount be the $399 they promised and it doesn't look too promising from a performance standpoint. It looks short and with out much volume in the plenum. I want to see some numbers out of that thing. I guess you've seen my website: Corvetteplenum.com
-Mike
-Mike
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