Freshly coated headers
 

Just got a set headers back from Nitro Plate. They are going back to be redone (dont ask I am already upset about it enoughf and the guy that owns them is REALLY pissed) But anyways I dont want them to look any worse. What do you guys do to the headers before firing up the engine with them for the first time. I have heard it is good to wipe them down before and after, But with what thinner, brake clean, denatured alcohol ect. Let me hear what you guys like to do. Last set was done by jet hot and they looked like sh in less than 6 months. do you guys just install and make passes or should I get them hot and let them sit and cool off before making passes. Nitro plate did not send any instructions for proper "break in" and I think its too late to get them and he would like to test tomorrow or sunday if possible.

thanks in advance for your help
Rob

Re: Freshly coated headers
 

NitroPlate usually includes instructions advising you to jet up because we've found the coating causes the AFR to go quite lean, as well as causing an increase in EGT. If you did not get those instructions, just call Chris and tell him. I have no doubt they'll make it right.

If the coating has turned dark, and/or taken on a frosty and slightly rough appearance and texture, that's a sure sign the EGT has gone well over 1300 degrees for at least a short period of time. I know very well what it takes to do this, as I've done tons of testing, some of it intended to see what the limits are.

It is very difficult to break in a new engine and not cause at least slight problems with coated headers. Especially with a flat tappet camshaft being broken in.

Ordinarily the coating does not require ANY break in, they cure it at a very high temperature. It also should not have anything on it that you didn't get on it during installation, they tumble and polish the headers before shipping. We just make sure not to get any oil or grease on them as it will stain the headers, although they can often be cleaned and polished to remove SOME stains.

They are polished just like you'd polish anything aluminum, and you can use an aluminum polish like Mother's to polish them again. If the coating is not seriously damaged it will shine back up.