Pulleyed W203, what spark plug to run

What do you guys like?
E
Does a pullied 1.8 give a noticeable increase? If so, maybe I'll look into it again.
Thanks.

For the plugs, what is the model number of the plug. Any problems with pre-ignition, or pinging?
Darwin, thanks for the input. I'm sure you have seen quite a few pullied cars.
E
. I used IK20s...I believe.flip
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Do you know what number I should ask for. After searching on different forums it seems that a 5 or 7 would work. The IX plug gapped to say .035.
I think this is the 7EIX plug right?
So, would these get me say 40-50k miles?
I'm hoping to source these tomorrow and install. I'm getting an odd hesistation under constant load of about 2,300 rpms. Seems like the car is pulling timing. I hope it is not the MAS.
E
The Best of Mercedes & AMG
Magnecor 8.5mm racing wires & Iridium IK16s spark plugs, the car will run 10x smoother and have a more punchy feel to it, which you will get used to after a while.... Im not sure how long this setup will last though since ive only put about 4K miles into it.
Do you know what number I should ask for. After searching on different forums it seems that a 5 or 7 would work. The IX plug gapped to say .035.
I think this is the 7EIX plug right?
So, would these get me say 40-50k miles?
I'm hoping to source these tomorrow and install. I'm getting an odd hesistation under constant load of about 2,300 rpms. Seems like the car is pulling timing. I hope it is not the MAS.
E
5EIX for your car (M111). You dont gap an iridium plug. You should be able to get it at a local autoshop. They are very easy to find.
Regards
Darwin W

Guess I'll keep looking.
E




NGK Iridium.
2 steps colder for pullied M111.
You can order them or buy them online for about 5 bucks a piece.
.04 gap.
I got mine at Winchester Auto. And yeh, they'll last 40-50K at least.
The downside of running too cold of a plug is a less smooth running motor at idle and part throttle conditions which is minor considering the downside of running too hot of a plug may cost you your motor.
If you need to gap iridiums do not use the standard gapper that you jam into the opening. You'll need a gapper that bends the arm open or closed. Mac tools sells one for < $15.







