Painting heat exchangers

[Prodigy]

I just painted my oil coolers on my R1 FD, thru had copious amounts of red over spray from a less then maco quality paint job, and the red bugged me horrendously...

Will it effect the ability of the exchangers to exchange temperature, I honestly believe it will, do I think that that little bit of paint that on it is going to make enough of a difference even if I had numerous datalogs of before after painting, that a change in temperature could be proven, I highly doubt it, and if it did. Are those few potential degrees difference really going to change how for Most of us, our street cars function?

Im confident enough to say no...

Sorry for spelling/grammatical errors, phones suck to type short story's on...

J.

[FC Zach]

If you do go the cleaning route be careful with pressure washing, the fins will be beat to hell. Purple power is awesome and works very well but don't let it sit on the aluminum long because it will etch the aluminum and leave it looking hazed. If you want to soak it in cleaner use something like simple green.

[need RX7]

Well, after all the input, I decided not to paint it. I did hit it with some degreaser in conjunction with a power washer, focusing mostly on the end tanks to avoid potentially damaging the fins. It looks better, but will need some detail work with degreaser and a brush.