Air Horn Porting - ZR-1 Net Registry Forums

LGAFF · 07-19-2013

Last two Air Horns I have ported I put alittle time into; reduced the AC compressor hump, skinnied up the area that hides the center bolt, knife edged the divider, then radiused in the entry to the TB.....

Stock

Ported

LGAFF · 07-19-2013

Stock into throttle body

Ported

LGAFF · 07-19-2013

Ported

Blue Flame Restorations · 07-19-2013

Cool stuff, Lee!

LGAFF · 07-19-2013

Bearly Flying · 07-20-2013

Looks pretty sweet Lee.

Paul Workman · 07-20-2013

Makes perfect sense, Lee.

efnfast · 07-20-2013

Wish I had the money Lee.

XfireZ51 · 07-21-2013

Some put in a 63mm TB and don't do anthing about what comes before it or after it. Then they wonder why it doesn't seem to do anything. The plenum needs to be port matched to the TB as well.

07-19-2013	#1
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Air Horn Porting Last two Air Horns I have ported I put alittle time into; reduced the AC compressor hump, skinnied up the area that hides the center bolt, knife edged the divider, then radiused in the entry to the TB..... Stock Ported __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 07-20-2013 at 11:36 AM.

07-19-2013	#2
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Air Horn Porting Stock into throttle body Ported __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

07-19-2013	#3
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Air Horn Porting Ported __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

07-19-2013	#4
Blue Flame Restorations Join Date: Feb 2010 Location: Pendleton, IN Posts: 3,899	Re: Air Horn Porting Cool stuff, Lee! __________________ 1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project

07-19-2013	#5
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,180	Re: Air Horn Porting __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

07-20-2013	#6
Bearly Flying Join Date: Dec 2012 Location: Ponoka, Alberta, Canada Posts: 158	Re: Air Horn Porting Looks pretty sweet Lee.

07-20-2013	#7
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Air Horn Porting Makes perfect sense, Lee.

07-20-2013	#8
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,583	Re: Air Horn Porting Wish I had the money Lee.

07-21-2013	#9
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Air Horn Porting Some put in a 63mm TB and don't do anthing about what comes before it or after it. Then they wonder why it doesn't seem to do anything. The plenum needs to be port matched to the TB as well.