Is there any consequence to installing these plugs on an engine without a pulley yet? I get my 15% pulley installed on the 6th of March, and I wasn't sure if it would be a bad idea to go forward with the install.

Thanks for any imput!


BTW... I already have 8.5mm plug wires, and an Alta Intake, if either is pertinant.

 

F15EWeapon, Don't think it would hurt, I mean you could foul a plug if it was too cold. I'd wait until after the pulley is on... it will give us something to do :smile: :smile:

 

Anyone know if the IK-22 plugs come pre-gapped out of the box?

Otherwise what is the correct gap to use for a pulleyed MCS using these plugs?

 

thanks for the follow up question minihune! That will be good to know come March.

 

Not real sure about the gap, I've seen several different spec. Figured I'd ask Randy at the Richmond PP.

 

according to the denso site, ik16's and ik20's are gapped at 1.1mm (.043&quot
and ik22's and ik24's are gapped at 0.8mm (.032&quot. I regapped my
ik20's to .032" on the advice of others.

 

I'll be gapping the IK22 @ 0.035". I think that's what Randy recommended..

_________________
Terminally infected with the epidemic MINI MOD BUG that's going around NAM

 

Denso plugs do come pregrapped (http://www.densoiridium.com/faq.php). Although you can reset the gap, most people I have talked to have stated to keep it the same. You should change the gap if you have upgraded your ignition system to a system such as Pilos.

 

All,

Spark plugs come from the factory pre-gapped for the factory intended application. Not sure what application the factory had in mind for these spark plugs. The IK-2X series of plugs are definitely not manufactured with the MINI engine management system application in mind.
The proper gap for any spark plug is the gap recommended by the manufacturer of automobile engine managment system. The spark plug gap takes into account the characteristics of the engine ignition system and the overall engine management and emissions systems. The "stock MINI" gap is about 0.065", the same gap as the stock multiple electrode spark plugs that you are taking out of the engine and are replacing. It is a simple manner to bend the ground electrode of the IK-2X spark plugs with a high quality spark plug adjusting tool to get the desired gap.

Regards,
John Petrich in Seattle

 

Hi there,

Was just looking around the net for a new gapping tool/gauges & came across a Jackson Racing FAQ re: plug gap.

...Now I know that this is Jackson Racing's opinion & is with specific reference to thier high-output ignition systems. BUT the comments are still interesting.

FAQ & Answer:
So... Anyone knowldegable about these things want to provide some insight into what is being inferred by Jackson Racing's comments re: boost / "flame out" & gap?

Hoping this is relevant to the topic.

 

Didn't see a definitive answer on this subject yet. Do you just plop them in or what?

 

BUMP! bummer i was gonna go out and change them now, maybe i will give someone a call

 

Most people seem to be setting them between .035-.045. With the odd .065-.08 (to me that seems too big). Mine are at .040. I tried them at .035, but I think the motor feels a little more "tuned" at .040. Also the after market plugs with specs for the mini that I have seen are recomending .044. As for using them without the pulley, I would wait. Because with or without the pulley you will be running the same compression when off boost it would probably be ok to do, but why. Hope this helps.

 

I GAP IT @ .030 FOR MY DENSO IK20. MY CAR RUNS SMOOTHER THAN GAP .035.

 

For what it's worth, I've seen Randy Webb simply take the IK22's out of the box and plop them in with out checking gap on a number of cars. I'm not saying this is correct but just an observation. Maybe he checked them at his shop first and put them back in the boxes, I don't know.

ripley.

 

Check out "Speed Secrets" by David Vizard. It's an article in the June 2005 edition of Grassroots Motorsports. ("THE HARDCORE SPORTS CAR MAGAZINE") There's a nice section entitled "Sparks:" Very interesting... He talks about multi electrode plugs vs. single, plug wire resistance/insulation, gap, coils, non-resistor plugs, and tip preparation.

Also, there is a ton of good info. on their website.
www.grassrootsmotorsports.com

 

I am guessing that some of you folks are writing in mm while others are using inches.

Denso ik22's are gapped at 0.8mm, which translates to 0.0314961 inches, or 0.032" if you want to round it up.

Jackson racing, quoted in an earlier post, suggests 0.03 to 0.04 for supercharged engines, and the stock ik22 gap of 0.8mm seems to fit nicely in the low end of that range.

Based on the foregoing, my completely non-expert opinion, subject to change before I finish typing this sentence, is that if I go from the standard ik20's to the cooler ik22's that are suggested for folks with reduction pulleys like mine, then I do not need to change the factory gap of 0.8mm, or 0.032".

 

At the Richmond PP last year, Randy install the ik22's out of the box along with the 15% pulley, Alta CAI, Nology wires, and the Pilo pack. Sum total change was dramatic particularly at the low RPM range. No problems with any of these changes since.

Marty