Frankenplenum - Page 5 - ZR-1 Net Registry Forums

LGAFF · 01-17-2015

I don't know what will happen, but its a 90 Z with 144K miles on it, and a bunch of parts that I got hacked up....so nothing to lose. Possible my cams might be a restriction...and the fact that the heads narrow to 32.5 on the primary ports as they enter the head.

We will see....good times

LGAFF · 01-18-2015

I think the plan will be to weld 1/2 solid square stock to the intake opening, then build a lid to make it modular as new Holley Hi Ram LS intake is....

this will allow for volume variance, as well as testing divided plenums, etc....

Will also ensure when its welded up I can check the runners and clean them up

-=Jeff=- · 01-18-2015

If you need to cut the hood on the black car.. I will trade you hoods before cutting

Bearly Flying · 01-18-2015

Would there be any advantage to extending the individual runners into the plenum, ala the LS series of intakes?

batchman · 01-19-2015

Or in adding the volume in the valley, after having removed A/C, relocated coils, removed secondary actuators, re-done PCV?

A lot of room under there, too bad you can't readily relocate the starter or alternator...

Hmmm,
- Jeff

LGAFF · 01-31-2015

Tacked a few 3/8 steel plates together, getting reading for the welder

Yes they are ugly welds

LGAFF · 02-01-2015

Plan will be to weld 1/2 X 1 inch flat stock or 1/2 X 1/2 square stock to the edge....then build a top with 1/2 inch stock, will need to check for clearance on the outer edge first

cvette98pacecar · 02-01-2015

Lee, You are going to have to create a way to cool the Aluminum faster as you TIG or you will warp the flanges. The 3/8" Steel that you are bolting to the plenum will not move heat fast enough to keep the flange from warping.

LGAFF · 02-01-2015

Its actually two 3/8 plates welded together.....I will let the welder address the cooling, he did my Airhorn and no issues.

FU · 02-01-2015

Volume !!

01-17-2015	#41
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Frankenplenum I don't know what will happen, but its a 90 Z with 144K miles on it, and a bunch of parts that I got hacked up....so nothing to lose. Possible my cams might be a restriction...and the fact that the heads narrow to 32.5 on the primary ports as they enter the head. We will see....good times __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

01-18-2015	#42
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Frankenplenum I think the plan will be to weld 1/2 solid square stock to the intake opening, then build a lid to make it modular as new Holley Hi Ram LS intake is.... this will allow for volume variance, as well as testing divided plenums, etc.... Will also ensure when its welded up I can check the runners and clean them up __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

01-18-2015	#43
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,173	Re: Frankenplenum If you need to cut the hood on the black car.. I will trade you hoods before cutting __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

01-18-2015	#44
Bearly Flying Join Date: Dec 2012 Location: Ponoka, Alberta, Canada Posts: 158	Re: Frankenplenum Would there be any advantage to extending the individual runners into the plenum, ala the LS series of intakes? __________________ 91 ZR-1 Arctic White/Gray 01 C-5 Magnetic Red/Black 85 FJ 1100 (Big Bore kit, Hooligan Bike) 05 FJR 1300 Yamaha (Long Distance, Sport Touring) And a whole whack of RC Planes

01-19-2015	#45
batchman Join Date: Jun 2009 Location: I live at Devens, one run at a time Posts: 455	Re: Frankenplenum Or in adding the volume in the valley, after having removed A/C, relocated coils, removed secondary actuators, re-done PCV? A lot of room under there, too bad you can't readily relocate the starter or alternator... Hmmm, - Jeff __________________ [I]91 ZR-1 #1840, autocrossing in SCCA BSP. FIC S/S's DRM chip/Watson/Borla/lid/LW batt&headlights, springs, shocks, pads & lines, quick rack & Turn One, camber brace, 32/22mm sways, A/C halfway deleted 17x11 & 12 CCW's, 315 & 335 Hoosier A6s [/I]

01-31-2015	#46
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Frankenplenum Tacked a few 3/8 steel plates together, getting reading for the welder Yes they are ugly welds __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-01-2015	#47
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Frankenplenum Plan will be to weld 1/2 X 1 inch flat stock or 1/2 X 1/2 square stock to the edge....then build a top with 1/2 inch stock, will need to check for clearance on the outer edge first __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 02-01-2015 at 09:03 PM.

02-01-2015	#48
cvette98pacecar Join Date: May 2011 Location: Sydney, Australia Posts: 2,479	Re: Frankenplenum Lee, You are going to have to create a way to cool the Aluminum faster as you TIG or you will warp the flanges. The 3/8" Steel that you are bolting to the plenum will not move heat fast enough to keep the flange from warping. __________________ Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car

02-01-2015	#49
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,195	Re: Frankenplenum Its actually two 3/8 plates welded together.....I will let the welder address the cooling, he did my Airhorn and no issues. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

02-01-2015	#50
FU Join Date: Mar 2004 Location: Found Member Posts: 4,346	Re: Frankenplenum Volume !! __________________ Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237