Longshot... Welding Titanium? Maybe use a SS slip fitting over it instead? - TriStateTuners.com :: Home of Tristate Auto Enthusiast

**TROLL** · 09-27-2008, 03:24 AM

Brainstorming about my Veilside Titanium catback for the Supra... its 3.5" all the way except for the short 3" section at the beginning. Its one of about 50 in the country, discontinued, and highly sought after.
I hesitate to even think it, but do you have any ideas for bypassing the 3" bottleneck? Either cutting it off and rewelding with 3.5" (or 4") titanium, or the other option would be to cut off the bottleneck and then just use a stainless slip fitting over the rough titanium edge if thats possible.
I will be mating this up to a 4" vband fitting at the end of the midpipe.
What do you think? Let me know, thanks.
Bryan

**dangerousatom** · 10-11-2008, 12:50 PM

Oh just sell the thing and buy a custom or even more oober rare 4" exhaust........

I know you have the money!

11secdsm · 10-11-2008, 02:30 PM

Jim at JMF has experience with this...give him a call.

james_ls · 10-11-2008, 07:29 PM

How bad will that bottleneck really hurt you?

peteyturbo · 10-11-2008, 08:13 PM

You should be able to stretch the stainless pipe to fit over the titanium and slip fit it..But stop nit picking and get the damn thing on the road!!

enigma · 10-11-2008, 08:23 PM

Titanium needs to be welded totally inert, i belevie there is a bike shop in media that welds up titanium bike frames, they may be able to handle something like this. Here's the website, try giving them a call. http://www.hhracinggroup.com/

D Money · 10-24-2008, 10:26 AM

Troll, I need this same thing done, did JM say they can weld a piece of titanium on?

here is my exhaust:

Can anyone replace that taper with a 3" section of titanium pipe and reweld it to the flange? I want 80mm piping all throughout...

**TROLL** · 10-24-2008, 12:30 PM

I didnt pursue it further yet to be honest, but one thing I found out is that it will be nearly impossible to buy a piece of 80mm titanium and find someone to weld it... better bet would be to use a slip fitting which is possible.

D Money · 10-24-2008, 12:35 PM

yea basically heard the same thing, great.

So I would need to get a ss slip fitting, cut the flange off my dp and attach it that way? how much could that little taper affect the performance so much?

91TSiGuy · 10-24-2008, 12:51 PM

Looking into this a little more, doing these fixes aren't impossible but they'll be a bit costly. I know for one piece of filler rod it's about $5 plus shipping. The titanium tube in 3.5" is about $3/inch plus shipping but I'm not positive yet if it can be ordered in as little as 3-6" lengths or if we'd have to buy an 8' length. Also, if the front flange is being replaced, then the replacement should also be titanium.

Jim's fused titanium in the past for one of the R/T Tuning guys, but that's about it as for working with this metal.

**TROLL** · 10-24-2008, 12:53 PM

oh thats more affordable than i thought... can you look into the minimum quantity of the 3.5" piping? and i dont know if we could open up my original flange and reuse it or not, but how would we go about making/buying a 3.5" flange? thanks!

edit: for my application we could also do a 4" vband on the end since it will be bolting to a 4" vband downpipe... or I could use an adapter piece to fit between 3.5" catback and 4" downpipe.

91TSiGuy · 10-24-2008, 01:10 PM

That 4" vband assembly will be pricey in titanium I'm sure. If I can find some spare time I'll look into where we can pick something like that up from but a quick goggle search isn't working right now on my lunch break. A slip fit type of coupler clamp will probably be your cheapest/easiest option.

**TROLL** · 10-24-2008, 01:14 PM

yeah so i guess a 3.5" flat flange welded in titanium to the catback and then a stainless steel adapter from 3.5" flat flange to 4" vband...

or just a stainless slip fitting to slide onto the 3.5" piping and tapers out to a 4" vband all in one piece.

91TSiGuy · 10-24-2008, 01:14 PM

Just got off the phone with one titanium supplier. There isn't a length requirement, but there is a minimum order price requirement and that's $65. I'll keep looking if you guys are definitely serious about doing this.

**TROLL** · 10-24-2008, 01:20 PM

yeah definitely interested in looking into details at the very least, especially if d is ordering too...

guess we need to decide if the welded titanium w/ bolt in 3.5-4 inch adapter is the way to go or if doing the slip fitting idea would be better.

D Money · 10-24-2008, 01:56 PM

yes!

but I need 80mm not 4" or 3.5"

I would be up for a 3" titanium section weldeded on to get rid of that taper section.

D Money · 10-24-2008, 05:07 PM

ok i need something else.

The exhaust I bought is for jdm downpipes which are shorter, so my exhaust is longer. Could I cut that tapered section out by 3" and have a ti-flange welded on? or is that not possible?

The other thing I could do is cut my ss downpipe down 3" and re-weld a flange on that?

**TROLL** · 10-24-2008, 05:18 PM

D... it'd probably be easier for you to have your stainless downpipe modded to fit the catback for that... cheaper and easier. Then deal with the bottleneck separately.

D Money · 10-24-2008, 08:05 PM

but then i still have the bottle neck!

**TROLL** · 10-24-2008, 08:10 PM

2 separate things you should be dealing with, thats what i'm saying...
you could do it all in Ti but it really does get expensive quickly so i thought this might be easier/cheaper for you...

10-11-2008, 02:30 PM	#3
11secdsm Tri-State Post Whore Join Date: May 2007 Location: Warrington, PA Member #4914 My Ride: '15 F150, '11 535xi, '95 M3, '04 Wrangler iTrader: (2)	Jim at JMF has experience with this...give him a call. __________________ -Chris 1995 M3 LS6 swapped 1991 Eclipse auto- 725whp - 5.93@122 1/8 \|\| 9.14 @ 151 2006 Evo IX- 609whp-> (2.3L) \|\| 11.19 @ 128 ->(stock 2.0) SOLD 1997 Supra- 670whp- 10.91 @ 139 SOLD

10-11-2008, 07:29 PM	#4
james_ls TST Ruined My Life! Join Date: Mar 2006 Location: Warrington Member #1614 My Ride: 1998 Acura Integra LS//VTEC iTrader: (0)	How bad will that bottleneck really hurt you? __________________ *Heller Dope* - When the ** is doper than Hellen Keller; it's Heller Dope To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. BUY MY STUFF!** To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-11-2008, 08:13 PM	#5
peteyturbo Tri-State Post Whore Join Date: Feb 2006 Location: NE Phila. Member #1450 iTrader: (0)	You should be able to stretch the stainless pipe to fit over the titanium and slip fit it..But stop nit picking and get the damn thing on the road!! __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-11-2008, 08:23 PM	#6
enigma Tri-State Addict Join Date: Oct 2006 Location: Glenolden ,PA Member #2659 My Ride: Hoopties galore iTrader: (0)	Titanium needs to be welded totally inert, i belevie there is a bike shop in media that welds up titanium bike frames, they may be able to handle something like this. Here's the website, try giving them a call. http://www.hhracinggroup.com/ __________________ 2001 Dakota Quad Cab, 1996 Ford F250, 1993 Honda Civic, 1991 Eagle Talon, 1970 Plymouth Duster.

10-11-2008, 12:50 PM	#2
dangerousatom [TST] Calendar Master Join Date: Jul 2005 Location: Q-town/AREA1320 Member #625 My Ride: 02-04 RS-STi @391whp 02-WRX Wagon @310whp ≈≈≈ Both modded to the hilt w/PPG trans iTrader: (5)	Oh just sell the thing and buy a custom or even more oober rare 4" exhaust........ I know you have the money!

10-24-2008, 12:51 PM	#10
91TSiGuy Tri-State Aficionado Join Date: Feb 2007 Location: Ephrata, PA Member #3637 My Ride: 91 Talon awd iTrader: (1)	Looking into this a little more, doing these fixes aren't impossible but they'll be a bit costly. I know for one piece of filler rod it's about $5 plus shipping. The titanium tube in 3.5" is about $3/inch plus shipping but I'm not positive yet if it can be ordered in as little as 3-6" lengths or if we'd have to buy an 8' length. Also, if the front flange is being replaced, then the replacement should also be titanium. Jim's fused titanium in the past for one of the R/T Tuning guys, but that's about it as for working with this metal.

10-24-2008, 01:10 PM	#12
91TSiGuy Tri-State Aficionado Join Date: Feb 2007 Location: Ephrata, PA Member #3637 My Ride: 91 Talon awd iTrader: (1)	That 4" vband assembly will be pricey in titanium I'm sure. If I can find some spare time I'll look into where we can pick something like that up from but a quick goggle search isn't working right now on my lunch break. A slip fit type of coupler clamp will probably be your cheapest/easiest option.

10-24-2008, 01:14 PM	#14
91TSiGuy Tri-State Aficionado Join Date: Feb 2007 Location: Ephrata, PA Member #3637 My Ride: 91 Talon awd iTrader: (1)	Just got off the phone with one titanium supplier. There isn't a length requirement, but there is a minimum order price requirement and that's $65. I'll keep looking if you guys are definitely serious about doing this.