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07-19-2013
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#1 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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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 
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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 12:36 PM. |
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07-19-2013
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#2 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Air Horn Porting
Stock into throttle body
 Ported 
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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07-19-2013
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#3 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Air Horn Porting
Ported
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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07-19-2013
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#4 |
  
Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,904
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Re: Air Horn Porting
Cool stuff, Lee!
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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 |
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07-19-2013
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#5 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Air Horn Porting
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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07-20-2013
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#6 |
 Join Date: Dec 2012
Location: Ponoka, Alberta, Canada
Posts: 158
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Re: Air Horn Porting
Looks pretty sweet Lee.
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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 |
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07-20-2013
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#7 |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Air Horn Porting
Makes perfect sense, Lee.
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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07-20-2013
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#8 |
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Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,486
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Re: Air Horn Porting
Wish I had the money Lee.
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07-21-2013
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#9 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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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.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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Linear Mode
