I was planning on running a couple HPDE's a year, but I have concerns the supercharged cars will experience too much heat soak due to the extended high RPM running on the track. Most likely my car will relegated to street use only.
I run one range colder. It is a stock plug for late model 911's. I believe the engine designation is "H6". Also used in some JCW Mini's.
Regards,
Jerry
No particular reason. That's just what I've always run on my car (Denso Iridiums in different heat ranges), and they have always worked well, so I haven't deviated. I'm sure the copper ones in the right heat range would run just as well.
My S3 is a daily driver. I'm currently running the Denso Iridium spark plugs 1 heat range colder than stock. I also have the plasma coils. Previously I ran the stock NGK plugs without any problems.
I am going to install one heat range cooler plugs in my car as part of my 60K maintenance plan. Interesting the multi-ground OE plug is a little more expensive than the premium Iridium version.
So how are you getting access to the passenger side of your spark plugs? Are you moving your abs module out of the way to gain clearance to access your plugs?
Not a good question. Need a bunch of variables to decide. Vanilla might be perfect for one setup, but wrong for another. Spark plug is a simple device. Elaborate.
I’m supercharging my M5 soon (it’s stock currently) and my m5 also needs spark plugs so I’ll be replacing those at the same time. I was planning on just getting the oem ones but after reading this thread I’m wondering if I should get different ones. I’m not installing a meth system or any other mods besides the supercharger
On the theory that a supercharged car will generate more heat when it is being used as intended, I went 1 range colder (NGK "7" instead of "6"). No issues to date, although on the track I would consider even 1 more range colder after reading #7 plugs.
The stock plug in a #7 configuration was stock on 1st gen Mini GP, so easy enough to find.
How much are you guys increasing your gap for your pressure? For my RS4 that got turbos I had to go to a totally different plug with a much longer gap and single single electrode setup. It is what was recommended. They did math so I assumed it was just science. From what I gathered the more dense the mixture was the longer gap you needed. Maybe I should have done some research?
Generally the more boost you run, the tighter you want your gap. It's just to prevent blow out.
For every 100hp increase from stock; go 1 range colder. So I build cars for 600bhp+ and go 2 ranges colder into the "8" series single electrode spark plugs.
.025" / 0.635mm gap
You can change the plugs just fine if you have a good assortment of extensions and swivel sockets that you can fish through the brake lines on the back of the ABS unit.
Sounds like someone knows what they are talking about.
Who are you?????
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
BMW M5 Forum and M6 Forums
3.2M posts
125.8K members
Since 2000
M5Board is the best forum community for information on the BMW M5 E60 (V-10), E39 (V-8), E34 (straight 6), E28, F90 and F10. Discuss performance, specs, reviews and more!