Polish Intake Pipe

[DaGr81]

how would i polish the cross over intake pipe on the rb25's? infact anything else i can polish can i use a dremel tool to do so, how about the pro's what do they use? anyone tried doing it themselves? results?

[75coupe]

You could use a dremel it might make it easier in places. I just used 400 grit wet and dry then 800, then used a combination of polishing wheels finally finished off with autosol... came up ok... I'm not looking for ward to doing the plenum though... I did the cam covers the same way, came up mirror, but I'm now thinking I will paint them as having to maintain the shine of polished alloy is very time intensive...

[DaGr81]

You could use a dremel it might make it easier in places. I just used 400 grit wet and dry then 800, then used a combination of polishing wheels finally finished off with autosol... came up ok... I'm not looking for ward to doing the plenum though... I did the cam covers the same way, came up mirror, but I'm now thinking I will paint them as having to maintain the shine of polished alloy is very time intensive...

sounds good, do you have pics of the end result? i think it might save quite a bit for coin which could be better spent on food ^_^

[Adz2332]

You could use a dremel it might make it easier in places. I just used 400 grit wet and dry then 800, then used a combination of polishing wheels finally finished off with autosol... came up ok... I'm not looking for ward to doing the plenum though... I did the cam covers the same way, came up mirror, but I'm now thinking I will paint them as having to maintain the shine of polished alloy is very time intensive...

x2 would love to see how it turned out doing it urself

[75coupe]

I don't have a decent camera but this is how the cam covers came out... it is really mirror like, they wern't too hard to do... just takes alot of time..

On the other hand the intake pipe and plenum take a lot more sanding to get it smooth but ends up the same, you do have to be careful to keep it smooth and not a wavy finish. When it is polished you will see distorted reflection. it would be easier to use a bench grinder with buff wheel attached..

I think I will just sand it smooth and paint all the polished bits a colour, maybe silver, as keeping the polished alloy nice and shiny takes time. My car is not a daily driver and it still needs a polish at least once a month to keep it looking great...

this really is a crap photo

Edited November 8, 2007 by 75coupe

[DaGr81]

looks awesome! hmm project for the weekend so 400 wet and dry then 800 im gonna test it on a spare cross over pipe first so if i f*k it up its ok

[Craved]

fo the cross over pipe, get something a bit more aggressive to get it smooth before you hit it with wet 400 - 400 would take along time to get rid of the casting marks.

go all the way through to 1200 or 2000 for final run

try not to sand in the one direction the whole time either.

check out other tips in the polishing post within the fabrication section.

[DaGr81]

sweet as cheers to all

[H@ME]

i;ve started to do mine!!

[DECIM8]

Yeap 2000grit for sure.. If the metal is smooth enough just start with 1500.. I did that on the intake on the r34 engine and it came up glistening..