I am cleaning up some 750il OEM cast iron floating 2 piston calipers and would like to make them look slightly better while making it easier to spray brake dust off & grime.

Read many (50+) of your posts on painting, etc.

1) Does painting or coating calipers increase heat retention?

2) If so, does the caliper perform better naked & rusty?

3) Those of you that use high heat or caliper paint to coat the rotor and then add clear coat, what kind of clear coat are you using?

Thanks in advance!

Does it really matter for a 7 series? Unless you are putting those on a track car. My guess would be it doesn't matter, but I have no knowledge to base that on.

One might argue that heat dispersion on a 4500 lb car capable of 150mph with barely adequate OEM brakes might matter more than on an M3 with factory overbuilt "hired killer" brakes!

Actually went to the 750il brakes from the OEM 740 brakes because they fade on the track. The 750il brakes are statistically very similar to the Dinan package for the 740.

And BTW, 'Cmon, not all Sevens are driven by old men on their way to the nursing home!

Most of us are just normal guys (some of us really tall, some of us really fat) who like supermodels and trips to Hooters as much as the next M3 or 540 guy.

Its not really a stock car and I have been known to hit the track with it.

Thanks!

Great question. I would have to say it will, but marginally at best.

I have never seen a difference on my car, but maybe someone with a pyrometer will do a before and after paint 60-0 stop with corrosponding temps.

In the real world, Black Engine Block paint has been my secret for years, never heard of a problem on the engine blocks retaining heat.