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02-28-2012
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#1 |
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Join Date: Feb 2008
Location: Vancouver, BC
Posts: 252
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Winter Porting Project Done!
I was having problems last summer with my idle and intermittent SES light - which I ultimately figured was a problem with the throttle body binding - so decided that since I'd have it all apart over the winter to repair the TB - might as well port the top end at the same time (and take out the starter and clean the valley)
I sent the TB off to Marc Haibeck to repair and Port. I arranged for Lee Gaffigan to exchange my Airhorn, Plenum, Intakes and Coolant Tubes - which he ported and Powder coated for me. I got new gaskets and bolts from Jerry. Finally got her all back together this weekend. I could never get the car to idle below about 750 without turning on the A/C, and I had IAC of zero when the car was warm. The Engine now idles smooth as silk at 675 RPM and with the engine at operating temp I have an IAC of 23 (Marc promised I'd get 20) Marc, Lee and Jerry are all very helpful and great to deal with - wanted to thank them for their help / service - couldn't have done it without them. I'll post before and after dyno results once I have the new results. Here's a few photo's....
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[SIGPIC][/SIGPIC] __________________ 1990 Corvette ZR-1 #2824 4.10's, Custom PROM, Flowmaster, Top End Port NCRS BC Chapter |
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02-28-2012
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#2 |
 
Join Date: Jul 2005
Location: Cresson, TX
Posts: 970
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Re: Winter Porting Project Done!
Congrats, looks very nice...
Cheers, RH |
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02-28-2012
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#3 |
 
Join Date: Dec 2005
Location: Tinton Falls, NJ
Posts: 1,177
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Re: Winter Porting Project Done!
one can never tire from looking at a refinished LT5! Hard to find a better lookin GM engine out there. Nice Job! Enjoy!
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02-28-2012
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#4 |
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Banned
BANNED
Join Date: Oct 2006
Location: MD
Posts: 3,690
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Re: Winter Porting Project Done!
Plenum looks great!
Wow my idle has never been that low.... Very nice!  David |
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02-29-2012
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#5 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Winter Porting Project Done!
Thanks Glenn!!
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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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02-29-2012
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#6 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
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Re: Winter Porting Project Done!
You done it all right! looks GREAT & obviously is doin' the nickel dance.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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02-29-2012
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#7 |
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Join Date: Feb 2008
Location: Vancouver, BC
Posts: 252
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Re: Winter Porting Project Done!
Thanks Jerry, Yeah - the idle is a big improvement, night and day
Just ordered the parts from you I need for one of next winters projects (powder coat cam covers to match)
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[SIGPIC][/SIGPIC] __________________ 1990 Corvette ZR-1 #2824 4.10's, Custom PROM, Flowmaster, Top End Port NCRS BC Chapter |
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02-29-2012
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#8 |
Join Date: May 2010
Location: Japan
Posts: 3,582
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Re: Winter Porting Project Done!
Its always nice to hear these success stories and I never tire of them. Thanks for sharing the great news.
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048
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02-29-2012
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#9 |
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Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: Winter Porting Project Done!
YES! Just like Rick and Craig said.... our motors are the best of the breed in both performance and looks! Yours sure came out sweet!
So glad that your project exceeded your expectations!  Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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03-25-2013
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#10 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Winter Porting Project Done!
Bump for color check
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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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