NA exhaust porting?
11-10-02, 09:40 PM
#1
Full Member
Thread Starter
Join Date: Jun 2002
Location: Cragsmoor, NY
Posts: 83
Likes: 0
Received 0 Likes
on
0 Posts
NA exhaust porting?
I'm rebuilding an S4 NA and I want to port the motor, but what should I do about the exhaust sleave. I know I should get TII housings but I dont want to go though all that trouble are there any other options? Thanks
11-11-02, 02:47 AM
#5
Banned. I got OWNED!!!
IT would take you no less than 4 hours and 10 grinding bits to grind out the damn NA diffusers. Really, a plasma cutter is the only way. What was done on that engine is t2 exhaust sleeves pinned in place of the stock NA versions.
11-11-02, 09:25 AM
#7
I'll have a Coke!
yeah those diffusers are really tough metal. if you insist on doing it yourself take your time and do it right. if you mess up something you will be shelling out for new housings anyways.
Trending Topics
11-11-02, 12:23 PM
#8
Rotary Enthusiast
Join Date: Mar 2001
Location: Ft. Worth, Texas, USA, Earth, Solar System...
Posts: 1,273
Likes: 0
Received 0 Likes
on
0 Posts
Read what Kevin (hypntyz7) wrote carefully: 
You can remove the sleeves by removing the crush pins that hold them in... then replace them with sleeves from "trashed" TII housings. MUCH simpler, quicker, and frankly probably cheaper than buying all those bits.
Brad
You can remove the sleeves by removing the crush pins that hold them in... then replace them with sleeves from "trashed" TII housings. MUCH simpler, quicker, and frankly probably cheaper than buying all those bits.
Brad
11-11-02, 01:50 PM
#10
No longer cares
Join Date: Apr 2002
Location: just a bit north of your business
Posts: 1,345
Likes: 0
Received 0 Likes
on
0 Posts
I don't know what kind of crappy assed bits you use... Took me about 1.5hrs to do both of my housings. Still have every bit I started my porting with too.
The inserts are stainless steel, so they're harder than the cheaper cutting bits on the market. If you really want to use a cutting bit to take them out you'll need to spring the $80 for a carbide bit. (really not worth it)
Start with an abrasive blade in the sawzall and cut the diffusers off at their bases. Then use a fine grinding bit and take the rest of them down to smooth out the nubs that'll be left. Try and get as close to the wall of the insert as possible, this'll lessen the amount of grinding you'll need to do.
1.5hrs is just to get the diffusers out completely. Took a couple more hours to make the ports perfect.
The inserts are stainless steel, so they're harder than the cheaper cutting bits on the market. If you really want to use a cutting bit to take them out you'll need to spring the $80 for a carbide bit. (really not worth it)
Start with an abrasive blade in the sawzall and cut the diffusers off at their bases. Then use a fine grinding bit and take the rest of them down to smooth out the nubs that'll be left. Try and get as close to the wall of the insert as possible, this'll lessen the amount of grinding you'll need to do.
1.5hrs is just to get the diffusers out completely. Took a couple more hours to make the ports perfect.
11-11-02, 04:23 PM
#12
Senior Member
Join Date: Aug 2001
Location: N. New Jersey
Posts: 465
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by hypntyz7
IT would take you no less than 4 hours and 10 grinding bits to grind out the damn NA diffusers. Really, a plasma cutter is the only way. What was done on that engine is t2 exhaust sleeves pinned in place of the stock NA versions.
IT would take you no less than 4 hours and 10 grinding bits to grind out the damn NA diffusers. Really, a plasma cutter is the only way. What was done on that engine is t2 exhaust sleeves pinned in place of the stock NA versions.
Nick
11-11-02, 06:34 PM
#13
Banned. I got OWNED!!!
Wrong! lol
"Go on with your bad self..."
ANd for all you guys who want to grind out your exhaust diffusers, you go right ahead, and Ill sit back and laugh after I swap mine with t2 sleeves. TO each his own though, you can lead a horse to water but you cant make him drink...
11-11-02, 10:54 PM
#14
Senior Member
Join Date: Aug 2001
Location: N. New Jersey
Posts: 465
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by hypntyz7
Boy, you're just the man today huh?
"Go on with your bad self..."
ANd for all you guys who want to grind out your exhaust diffusers, you go right ahead, and Ill sit back and laugh after I swap mine with t2 sleeves. TO each his own though, you can lead a horse to water but you cant make him drink...
Boy, you're just the man today huh?
"Go on with your bad self..."
ANd for all you guys who want to grind out your exhaust diffusers, you go right ahead, and Ill sit back and laugh after I swap mine with t2 sleeves. TO each his own though, you can lead a horse to water but you cant make him drink...
Nick
11-11-02, 11:34 PM
#15
Senior Member
Join Date: Jul 2001
Location: Muskegon, Mi
Posts: 746
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by hypntyz7
Boy, you're just the man today huh?
"Go on with your bad self..."
ANd for all you guys who want to grind out your exhaust diffusers, you go right ahead, and Ill sit back and laugh after I swap mine with t2 sleeves. TO each his own though, you can lead a horse to water but you cant make him drink...
Boy, you're just the man today huh?
"Go on with your bad self..."
ANd for all you guys who want to grind out your exhaust diffusers, you go right ahead, and Ill sit back and laugh after I swap mine with t2 sleeves. TO each his own though, you can lead a horse to water but you cant make him drink...
Dude CHILL. I think that maybe you should just leave this thread alone. I have never read a bad post from you but you seem to have found your nitch in this thread!
Nick your car will kick *** man!!!!
Josh
Last edited by gz91rx7; 11-11-02 at 11:38 PM.
11-13-02, 07:18 PM
#17
Lives on the Forum
Yeah, and I usually draw the line when the swearing gets out of hand.  Friction is inevitable.  Hell, I screwed up on a recent oil post myself.  But, I'm not going to go warning people left and right, especially if it stays like this thread - it's too sedate for me to go threatening a warning...
-Ted
-Ted
Thread
Thread Starter
Forum
Replies
Last Post
Skeese
Adaptronic Engine Mgmt - AUS
65
03-28-17 03:30 PM
msilvia
3rd Generation Specific (1993-2002)
28
04-14-16 12:58 PM
