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Old 02-28-2012   #1
gbmidyear66
 
Join Date: Feb 2008
Location: Vancouver, BC
Posts: 252
Default 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....
Attached Images
File Type: jpg IMG_0001 cr.jpg (39.6 KB, 111 views)
File Type: jpg IMG_0048.jpg (68.0 KB, 136 views)
File Type: jpg IMG_0006.jpg (38.5 KB, 126 views)
File Type: jpg IMG_0014.jpg (59.2 KB, 115 views)
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1990 Corvette ZR-1 #2824
4.10's, Custom PROM, Flowmaster, Top End Port
NCRS BC Chapter
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