spark plugs - Page 2

QWKSNKE · 11-26-2007, 05:04 AM

Why and how is there more heat? You get a way more effecient combustion by running the plug gap wider.

coupe · 11-26-2007, 09:36 AM

Unless you have a really nice CD ignition and a sensitive knock-sensor, you should always narrow the gap a bit on the Jug. The spark only starts the combustion, so has nothing to do with the completeness of burn...or the burn-rate. A multi-spark CD ignition helps, but narrowing the gap is just a little insurance.

89five0Gt · 11-26-2007, 09:43 AM

the only ignition upgrade i have right now is a MSD 6aL. the rest is stock. i'm trying to get that window switch from matt. i don't know if it matters on the gap but its a wet kit. thanks for the info guys.

EHardy1971 · 11-26-2007, 09:45 AM

Quote:

Originally Posted by coupe

Unless you have a really nice CD ignition and a sensitive knock-sensor, you should always narrow the gap a bit on the Jug. The spark only starts the combustion, so has nothing to do with the completeness of burn...or the burn-rate. A multi-spark CD ignition helps, but narrowing the gap is just a little insurance.

it gives you a more intense,concentrated spark for the initial combustion,and lowers the possibility for detonation!

89five0Gt · 11-26-2007, 11:14 AM

BTW, hows jury duty Eric ?

EHardy1971 · 11-26-2007, 11:33 AM

Quote:

Originally Posted by 89five0Gt

BTW, hows jury duty Eric ?

boring so far,waiting to see if I get picked!

89five0Gt · 11-28-2007, 02:16 PM

picked up some autolite 23 last night. i got a little confused on the gap since ya'll have mixed opinions. i'll probably gap them around .040 or .044 that sound aight ?

coupe · 11-28-2007, 02:24 PM

I'd do between .035 - .040

QWKSNKE · 11-29-2007, 04:37 AM

Mine are at the stock gap of .045. (Well that's the stock gap on a 93 cobra) but I have a 6A box too

To back up some of what coupe said, I wouldn't run then at the stock gap of a 5.0 HO which is .054.

I say no tighter than .040.

qkjuicedpony · 11-29-2007, 04:52 AM

hell i run mine at .032

11-26-2007, 05:04 AM	#11
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Why and how is there more heat? You get a way more effecient combustion by running the plug gap wider. __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

11-26-2007, 09:36 AM	#12
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Unless you have a really nice CD ignition and a sensitive knock-sensor, you should always narrow the gap a bit on the Jug. The spark only starts the combustion, so has nothing to do with the completeness of burn...or the burn-rate. A multi-spark CD ignition helps, but narrowing the gap is just a little insurance. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

11-28-2007, 02:24 PM	#18
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	I'd do between .035 - .040 __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

11-29-2007, 04:37 AM	#19
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Mine are at the stock gap of .045. (Well that's the stock gap on a 93 cobra) but I have a 6A box too To back up some of what coupe said, I wouldn't run then at the stock gap of a 5.0 HO which is .054. I say no tighter than .040. __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

11-29-2007, 04:52 AM	#20
qkjuicedpony Dayuuuuuuum!!!!! Join Date: Dec 2004 Location: Dallas GA Posts: 2,933	hell i run mine at .032 __________________ 86 Mustang Gt......Mods piling up in my garage. 07 F350 dooly.....Tows my fifth wheel

11-26-2007, 09:43 AM	#13
89five0Gt Senior Member Join Date: Dec 2006 Location: behind Skillet Posts: 1,356	the only ignition upgrade i have right now is a MSD 6aL. the rest is stock. i'm trying to get that window switch from matt. i don't know if it matters on the gap but its a wet kit. thanks for the info guys.

11-26-2007, 11:14 AM	#15
89five0Gt Senior Member Join Date: Dec 2006 Location: behind Skillet Posts: 1,356	BTW, hows jury duty Eric ?

11-28-2007, 02:16 PM	#17
89five0Gt Senior Member Join Date: Dec 2006 Location: behind Skillet Posts: 1,356	picked up some autolite 23 last night. i got a little confused on the gap since ya'll have mixed opinions. i'll probably gap them around .040 or .044 that sound aight ?