Hummer Forums by Elcova - Spark Plug Gap with Whipple

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- - Spark Plug Gap with Whipple (http://www.elcovaforums.com/forums/showthread.php?t=41593)

Fallon02

08-04-2011 02:00 PM

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.

H2 Bill

08-07-2011 04:50 PM

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.

MVR 155

08-09-2011 12:21 PM

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.

scottminor

08-11-2011 03:14 AM

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.

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