Hi motorers!

I've had Denso IK22 for a log time now and I love them. They do the job really well and last long enough to justify the extra $$ spent.

I would like to know if it would be "overkill" to run IK24 on my car?

I have :
- 15% pulley
- Alta CAI with Forge hose
- One-ball exhaust
- DT by-pass valve
- Screamin Demon coilpack
- Crane Cams spark plugs wires

Would IK24 help in Miami hot weather?

Any downsides or running IK24?

Thanks a lot!

 

I had 22s on my car and went to the next colder range with no problems.

I did it mostly as a safety measure.

Although I did switch to the equivalent NGKs.

 

I switched to IK24s and they have been fine.

 

And, 1 more time.
I'm thinking you can go colder yet.

 

Thanks for the answers!!

I got a set of 4 ordered.

Thanks again.

 

I received my IK24 on Monday & installed them.

The difference is very surprinsing. With IK22, especially when the temperature was hot outside, my car was a bit "jerky" on throttle response. In the morning, it was a lot better than mid-day.

But with IK24, it's a ot better! My car feels the same all day long!

Don't get me wrong, a bigger intercooler would be a lot better, but a simple change such as IK22 --> IK24 makes a nice improvment!

I really like them!!

 

Side question!

This there any difference vs. Denso's and NGK's? I believe MINI works (the vendor) are having a sale right now on the NGK's, for like $30/4 plugs. I would much prefer to get those other the $60 Densos!

And what would I get? I'm running an M7 16% pulley and HAI.
https://www.northamericanmotoring.co...ad.php?t=82012

-Cody

 

It seems the preferred brand is NGK as Densos have a habbit of backing out and getting shot out of the cylinders. This is an issue for all plugs (most likely a production defect on MINI's part) but Densos seem to be the one's it happens to the most.

 

Iridiums cross reference:

For stock temperature range - Denso IK20 or NGK BKR6EIX

One range colder - Denso IK22 or NGK BKR7EIX

Two ranges colder - Denso IK24 or NGK BKR8EIX

My guess - with your mods, either the stock range or maybe one range colder.

And $30 'on sale' isn't a particularly low price for 4 NGKs. It's OK, but it's relatively near the normal 'street' price.

 

http://cgi.ebay.com/ebaymotors/ws/eB...tem=8072951391

 

Dude, I had the same problem running IK22's in my Audi (The backing out, NOT the shooting out )

 

You can pick-up Denso's for a few pennies under 10 bucks each plus shipping - total came to 45 bucks appr.

 

Really? I always thought Denso's were prefered over NGK. I'll look into pricing more, I just happen to see the IK's somewhere for $60 and thought that was a little much.

It seems like more people are using the Denso's, even in this thread!

Thanks!
-Cody

 

http://www.urdusa.com/product_info.p...s_id=430000026 for 10.99

I forget where I saw them for 9.99

 

Cody...I left the Denso boat years ago when an aquaintance who works at NGK turned me on to a set...never looked back since...

I believe the Denzo's have washers that cannot with stand the proper torque and become crushed thereby loosing their grip...NGK's washers are much more substantial

 

what is the NGK number for the equivalent to IK22's?

 

That what you need?

 

Yes, they do seem to loose crush faster than some other brands but after a few TQs they are pretty stable. When we ran 2 stroke clutch & shifter karts, NGK was the prefered brand ( for us anyway ). The NKGs would not loose any measurable TQ, when used out of the box new, durring a practice or qualifing heat. The NGKs would loose some crush after a race however. Loss of crush for most brands of plugs is pretty common, just Denso is prone to loose more when out of the box new. For this reason all plugs, including OE, should be checked from time to time.

 

i have densos in my mini cooper s. i haven't had any problems with loosening. as is my usual practice, i put high temp anti-seize on the threads and then followed the directions: i did not seat them by a torque value, but instead by the recommended amount of rotation after the washer contact.

 

The problem is NOT Denso plugs

While you're certainly entitled to your opinion your comments are inaccurate.

What we in the MINI community can be certain of is:
Many folks who replaced their OE plugs have had problems. These issues - like loosening off and/or getting shot out of the cylinder(s) are not Denso specific.

The problem/s lie somewhere between the head, whether or not they attempted to re & re plugs while the head was hot, correct torque, and whether or not folks used anti-seize on the threads.

In case we still have folks changing hot plugs (or installing a header) with a hot engine - DONT

Threads in the MINI's aluminum head can be easily be damaged when hot!

Many folks just re & re'd plugs like they always had - rightly or not. Many folks never bother to torque spark plugs at all... I know because I watched this go on numerous times at no less than 4 pulley parties... Then afterwards we'd hear stories... some that I KNOW were the exact folks who either didn't wait (for a cooler head ) or didn't torque... and then blame the plugs

My own experience with my '03 MCS:
I've installed or changed plugs at least 8 times & I've never had a problem of loose plugs. Nor has anyone I know of who installed & torqued correctly. This is only my experience, but it is SO contradictory to much of what I've read.

I've got nothing against the NGK product - always used them on motorbikes & cars in the past. I'm certain they are excellent. Just wanted to clear the air.

 

The problem may not be Denso plugs...but most of the issues on this board seem to come from those using Denso plugs. I think that is the rationale. That plus my NGK plugs have been great

 

It could also be said that:

most of the issues on this board (pertaining to spark plugs) seem to come from those who changed their own plugs/did not have them replaced by the dealer ~ irrespective of what brand was used.

If in fact Denso washers do require more/different care at time of installation due to “crush” this isn't a fault or inferior part - its by design. Having knowledge of what one is doing and applying it is only reasonable. Expecting propper results without such is unreasonable.

Blaming inanimate objects for one’s lack of knowledge, impulsiveness, laziness or ineptitude is just LAME.

 

d'oh! (some have eyes , but cannot see.........) Thanks man.

 

Okay, well this brings up another question...how many lbs to you torque them to? And where can I get a tool that does that?

I've ran NGk's in my ATV and never had a problem...and people seem to love their NGK's here! Sounds like the brand to get!

Thanks!
-Cody

 

Torque values for NGK are listed here and Densos here. Note that you should not trust a torque wrench set to less than 20% of its maximum value.

OEM plugs are NGK BKR6EQUPK as seen in the bottom pic here.

Did anyone ever figure out if the correct NGK plug is BKR6EIX-11 or the ZFR6FIX-11 suggested by the NGK website? I mean one heat range colder than stock should be ZFR7FIX-11, not BKR7EIX-11 if going by their listing, but the OEM number suggests it should be BKR7EIX.