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View Full Version : How to polish a turd.

el_jefe
02-25-2007, 01:46 PM
First, find a turd. Fortunately, the SRT-4 has one. It's attached to the turbo, and is known as the exhaust manifold. Get yourself some eye protection, carbide bits, a rotary grinder (you can use a dremal, but I used a air powered one).

Start polishing!!!

http://i9.photobucket.com/albums/a86/orionis996/Car%20stuff/022507_1218a.jpg
http://i9.photobucket.com/albums/a86/orionis996/Car%20stuff/022507_1219b.jpg

I used the gasket for my 3" Maxxfab o2 housing as a guide to how far to port it. Later I am going to upload a .doc file so you can print a stencil out. Be carefull how far you go, some of the walls limit the amount of material you can take off. I plan on brining it to work so I can mic out the wall thickness before I go any further. I took off anything point that would impead airflow, and tried to round everything to the outlet as much as possible. Later, I will go back and polish it a bit more.


http://i9.photobucket.com/albums/a86/orionis996/Car%20stuff/022507_1219a.jpg
http://i9.photobucket.com/albums/a86/orionis996/Car%20stuff/022507_1219.jpg

On the head side, I concentrated on removing the mold marks and straightening the edges of the ports. besides that and cleaning up some rough spots, there isn't much you can do, unless you are planning on port matching it to the head.

http://i9.photobucket.com/albums/a86/orionis996/Car%20stuff/022507_1220.jpg

And because I am an asshole, I took a pic of my work space. BTW, it's February.:rofl:

I really wish I had a welder, if some material was added, you could really make some improvements, but when you get down to it, there is only so far you can polish a turd.
slow4dr
02-25-2007, 09:05 PM
:thumb: When I did the first one I blew a big fat hole next to the waste gate. :rofl:
el_jefe
02-25-2007, 09:09 PM
Yeah, it would be really easy to do.
slow4dr
02-25-2007, 09:18 PM
I figured the stock turbo spools to quick anyway so I left it. :paranoid:
el_jefe
02-25-2007, 09:22 PM
FTW :rofl:
lunchbox660
02-25-2007, 10:42 PM
lol damn jason, im surprised to hear that!~ is that the one thats on my car :ftard: lol
lunchbox660
02-25-2007, 10:42 PM
no wonder why i cant hold boost...damn WG is wide open....lol
el_jefe
02-25-2007, 10:46 PM
no wonder why i cant hold boost...damn WG is wide open....lol


It's an external wastegate yo!!!
lunchbox660
02-25-2007, 11:12 PM
lol....yea....all the EG is just venting right out making my car the most elaborate NA car in town....lol
slow4dr
02-26-2007, 09:24 AM
lol damn jason, im surprised to hear that!~ is that the one thats on my car :ftard: lol


:paranoid:







:jester:


No, it's on my car and it was fixed before going back together. What the hell kind of person do you guys think I am? :rofl:
srtowner
02-26-2007, 09:25 AM
Do you plan on smoothing that out a little bit more?
el_jefe
02-26-2007, 09:30 AM
Yeah. If you notice the circle edge isn't quite smooth yet. I am going to mic the walls and see how much more I can remove, then use something a bit less aggressive to smooth things out. There is only so far I will go to make it look pretty, odds are I could put it on right now and dyno exactly the same as if I spent another hour or two polishing it.
lunchbox660
02-26-2007, 10:46 AM
:paranoid:
:jester:
No, it's on my car and it was fixed before going back together. What the hell kind of person do you guys think I am? :rofl:

i was TOTALLY jokin jason, you can tell by the "lol" i posted....lol....see, there it is again!
slow4dr
02-26-2007, 10:49 AM
:bs:





lol













:bs:














:paranoid:












.......
srtowner
02-26-2007, 11:22 AM
Yeah. If you notice the circle edge isn't quite smooth yet. I am going to mic the walls and see how much more I can remove, then use something a bit less aggressive to smooth things out. There is only so far I will go to make it look pretty, odds are I could put it on right now and dyno exactly the same as if I spent another hour or two polishing it.

Good, I'm glad to hear that. I was going to recommend finishing it if you had said you were done. Looks good so far.:thumb:
el_jefe
04-08-2007, 04:16 PM
Update: I pulled off the old manifold. It's got a bit of a crack on it :owned:

http://i9.photobucket.com/albums/a86/orionis996/Car%20stuff/P4070104.jpg

So does the o2 housing :rofl:
JuanDirtyMessican
04-09-2007, 12:24 AM
Well that just blows.........
el_jefe
04-09-2007, 12:33 AM
It's all scrap anyway, I have a maxxfab to replace it.
JuanDirtyMessican
04-09-2007, 12:33 AM
It's all scrap anyway, I have a maxxfab to replace it.


LOL well in that case...Toss the POS...
lunchbox660
04-09-2007, 11:26 AM
they all have crack pretty much. thats essentially thw whole purpose of doing the PnP on the exmani...to eliminate the hot spots and help EG flow better to reduce temps...
el_jefe
04-09-2007, 11:44 AM
Yeah, I know. That's just the biggest crack I have seen, short of the manifold exploding :lol:
2clean2drive
04-09-2007, 12:12 PM
Yeah, I know. That's just the biggest crack I have seen, short of the manifold exploding :lol:
:bs: the one jason shipped me had a few nice size cracks...
slow4dr
04-09-2007, 12:21 PM
:lulz:
2clean2drive
04-09-2007, 12:26 PM
:lulz:
thats alright the one im sending back is the same way....
slow4dr
04-09-2007, 12:27 PM
:thumb: They are all like that
2clean2drive
04-09-2007, 01:11 PM
:thumb: They are all like that
i know....i should have at least tig welded the crack before installing it...
ViscousCircles
04-09-2007, 03:43 PM
I clicked on this thread hoping that it would be a tutorial on how to polish one of eric's toilet knobs.
2clean2drive
04-09-2007, 03:45 PM
I clicked on this thread hoping that it would be a tutorial on how to polish one of eric's toilet knobs.
me too:dunno: