Sparkplug gap differences

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Jun 22, 2004 | 05:05 PM

neonhero

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From: Valencia, CA

Sparkplug gap differences

The owner's manual says .024-.027 I believe, but the shop manual says .039-.043
What's the deal? Which is right?

Jun 22, 2004 | 06:04 PM

1QWKEVO

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From: Turkey Town (Gobble-Gobble)

for sure its not .040+ that must be for the non turbo lancer .... i would gap them around .028 or so...

Jun 22, 2004 | 06:20 PM

evo 8 ya

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From: 39.800N 76.983W

the correct gap should be between .028-.032

Jun 22, 2004 | 06:35 PM

Quickshift

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From: MD

mine are at .28

Jun 22, 2004 | 06:56 PM

Jorge T

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From: Houston, TX

First thing I did when I got mine was pull the plugs and regapped to .026. This made a high rpm misfire go away completely. Car idles smooth and pulls strong to redline. BTW all 4 were at different gap .026-.030

My experience with my stage 3 1.8T VW was that even with with individual coil packs a gap of .031 was too large for 20psi and caused ramdom multiple misfires. The min spec of .028 made the misfires go away, idle was smoother, and cold start back fires went away.

Evos have only 2 coil packs which I presume have less discharge capabilities than VW's

my .02