Clean a Supercharger?

**SDGTP99** · 09-27-2009

I'm getting ready to put a new supercharger on my car. This s/c has been sitting in my shed for months so it needs cleaned inside. What do I use to clean it? Intake cleaner maybe? I need to take apart the case to do this?

**blueguy** · 09-27-2009

take it apart...remove the rotors...then spray out the snout with brake clean...wipe the rotors off if you want to...then spray brake clean on a towel and clean out the case...but you might as well port that one while it is apart...

You still gonna ship me that case?

**SDGTP99** · 09-27-2009

Originally Posted by bluegtp91

take it apart...remove the rotors...then spray out the snout with brake clean...wipe the rotors off if you want to...then spray brake clean on a towel and clean out the case...but you might as well port that one while it is apart...

You still gonna ship me that case?

Thanks! I can if you really want it. It'll be nxt week b4 a get it taken off & switched.

**minichopper6hp** · 09-27-2009

Was there an actual problem with the port, or were people just saying there was?

**SDGTP99** · 09-27-2009

I'm not pleased with the results: 7psi on a 3.4". Sounds like a vacuum. Is slow.

**minichopper6hp** · 09-27-2009

You take it back to them? How long have they been doing porting?

**SDGTP99** · 09-27-2009

Probly won't take it to them if im giving the case to BlueGTP91. If I remember correctly the guy(from FTW Motorsports; check out the website if you want lol) who did the port, said he'd ported by hand several times but my s/c was the first time he's used a jig. Dosen't explain why he opened it up the way he did. He opened up the triangle WAY to much & added the square to the tip of the triangle.

**minichopper6hp** · 09-27-2009

All porting to the oulet should be done by a jig or cnc. Oh well hopefully it didnt put ya back too much.

**99prixgt** · 09-27-2009

I used throttle body cleaner on the inside of mine, got it pretty clean. If you still use an egr, it will just dirty it up again anyways

**Going Too Phast** · 09-27-2009

You want to be real careful cleaning the inside of the supercharger. I personally wouldn't touch the rotors with anything. Many cleaners will weaken or remove the coating (epoxy for Gen III) on the rotors which will make them (and the supercharger) become very inefficient. The rotor coatings are fragile enough after 10 years of use. The buildup from the EGR will tighten clearances between the rotors and housing and in theory will improve efficiency similar to what water injection does when sprayed upstream of the rotors. If you clean the inside of the housing there are two bearings that need to be greased. They need proper grease. Some people don't use the correct stuff and claim there is no issue, but even then you need to not just stick any old grease in there. The rotors turn at very high rpm. Bottom line is, it might not be as harmless and simple as you first think.

**minichopper6hp** · 09-27-2009

Originally Posted by Going Too Phast

You want to be real careful cleaning the inside of the supercharger. I personally wouldn't touch the rotors with anything. Many cleaners will weaken or remove the coating (epoxy for Gen III) on the rotors which will make them (and the supercharger) become very inefficient. The rotor coatings are fragile enough after 10 years of use. The buildup from the EGR will tighten clearances between the rotors and housing and in theory will improve efficiency similar to what water injection does when sprayed upstream of the rotors. If you clean the inside of the housing there are two bearings that need to be greased. They need proper grease. Some people don't use the correct stuff and claim there is no issue, but even then you need to not just stick any old grease in there. The rotors turn at very high rpm. Bottom line is, it might not be as harmless and simple as you first think.

You see, this is just not true. Ive cleaned many of rotors doing the work i do, and no problems have come from it. The coating is epoxy powder, its not gonna break down unless you put some form of paint stripper on it. Brake clean and degreaser work well with scotch brite pads. If the coating chips it was on its way out anyways.