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#1
08-04-2011, 02:00 PM
Elcova Newbie
Join Date: Apr 2011
Posts: 1
Spark Plug Gap with Whipple
Hello I am new to the forums and I recently picked up an H2 with a whipple supercharger. After a few months I started getting a cyl 5 misfire now. I picked up some NGK one step colder (4177 TR6 model) plugs and some new wires and wanted to make sure I gap them properly if anyone could help me out I'd greatly appreciate it.
#2
08-07-2011, 04:50 PM
Hummer Professional
Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
Re: Spark Plug Gap with Whipple
I don't know off-hand. My manual is 800 miles away. If you call Whipple they will tell you.
__________________
2003 H2 Hummer, Yellow,Polished Whipple Supercharged, Dynatech long tube headers, catback,18\" Ambush w/Toyo MT\'s,lots of goodies!
Y2K Corvette Millennium Yellow Convert/Blk/Blk, B&B headers, B&B Tri-Flo\'s, H-Tech MAG,GMS MAF, RM Racing TwinFlow.
1994 Chev Suburban Blown
1970 Trans Am balanced, blueprinted, ceramic headers, etc.
#3
08-09-2011, 12:21 PM
Hummer Professional
Join Date: Aug 2007
Location: Bartlett, Illinois
Posts: 486
Re: Spark Plug Gap with Whipple
Im not sure but I think the stock gap is .060 (please confirm before you gap). On a forced induction setup (or nitrous setup) it is best to tighten that gap up by .010 which would make the new suggested gap .050
I had this same problem years ago when I installed a nitrous set up on one of my vettes.... tightened the gap up and she ran perfect.
__________________
2008 H2 SUV Luxury: Solar Flare ext/Black int
SOLD 2006 H2 SUV Luxury: Pewter ext/Black int.
2002 Corvette Z06 Blue/Ebony (light mods)
1/4 mile: 11.661@118.86
2013 Audi S4
2002 Yamaha YZF R1 Blue/White
1/4 mile: 10.51@136
2006 Sea-Doo RXP (70.6mph GPS)
2005 Sea-Doo RXT
#4
08-11-2011, 03:14 AM
Hummer Veteran
Join Date: Jun 2010
Location: Atlanta
Posts: 211
Re: Spark Plug Gap with Whipple
I am not sure about the gap, but it's great to see someone else out there with a whipple! I love mine. I makes it drive like it has the right amount of HPs.
__________________
2005 Hummer H2 LUX
Whipple SC
Ceramic coated headers
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