North American Turbocoupe Organization



Advice on exhaust
mapman87 Offline
Junior Member
#11
I think in Michigan a licensed repair facility must not be allowed to alter any emissions related equipment.
A post on ITC mentioned 3" down pipe, 3"cat, 3" out of cat to a 3" to 2.5" y pipe and 2.5" back to flow through mufflers an tail pipes. I really don't want to pay for a 3" cat if I can get around it.
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andrewjs18 Offline
Administrator
#12
(05-19-2019, 03:22 PM)mapman87 Wrote: I think in Michigan a licensed repair facility must not be allowed to alter any emissions related equipment.
A post on ITC mentioned 3" down pipe, 3"cat, 3" out of cat to a 3" to 2.5" y pipe and 2.5" back to flow through mufflers an tail pipes. I really don't want to pay for a 3" cat if I can get around it.

how is the car registered? regular plate, antique/classic, etc.?
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Rob H Offline
Member
#13
It's just a regular plate.
I went and picked up the car. The shop had it for two weeks and still had not got around to it, and didn't sound like they had plans to get in either. I remember now why I stopped going to them about a decade ago.
We don't have many places around that can do the work but I have it booked in with another shop a little ways away from me that was recommended by a friend. I asked them if it would be likely they would be able to fabricate the parts that I might need. She said 100%, we make custom exhausts all the time.
Makes sense to me Smile
Hopefully this works out.
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anasazi4st Offline
Senior Member
#14
(05-22-2019, 10:27 PM)Rob H Wrote: It's just a regular plate.
I went and picked up the car. The shop had it for two weeks and still had not got around to it, and didn't sound like they had plans to get in either. I remember now why I stopped going to them about a decade ago.
We don't have many places around that can do the work but I have it booked in with another shop a little ways away from me that was recommended by a friend. I asked them if it would be likely they would be able to fabricate the parts that I might need. She said 100%, we make custom exhausts all the time.
Makes sense to me Smile
Hopefully this works out.

Well now it sounds like you are on the right track.

Like I said, pipes are pretty much pipes. Back in PA in the late 70s I had a 1954 DeSoto Firedome. The exhaust was shot, lots of holes. I learned of a place out in the country not far from where I lived that fabricated exhaust/tailpipes. I visited and was amazed—the bending rig was about 10-15 feet long, lots of wheels and pulleys. The guy asked what kind of car I had and what I needed; I told him and he looked up in this guidebook he had for the proper settings, flipped some switches, loaded a long section of pipe in the machine, and started it up. It was like watching a science fiction or fantasy movie...the machine creaked and groaned as the wheels and pulleys flashed around, bending the pipe as instructed. Within seconds he had created the pipe I needed, and when I got home it was an exact match. I can’t remember if he welded on the flanges right then or if they were already on the pipe. But it was really something to watch.
Another proud dues-paying member.

1987 Turbo Coupe w/T5OD, 8.8 axle, grey smoke; most options. Got it in 1991 with 41K miles: 3 turbos, 2 heater cores, 1 T5OD full rebuild, 5 clutches, 1 head gasket, 2 Teves II ABS units, etc. later....
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Rob H Offline
Member
#15
Yeah I'll bet that would be neat to watch, and that was in the 70's!
I'm sure with computerized systems now it's about the same but just typing in a few measurements. I didn't do the asking around, a friend was looking into it for me. It all started with how his cousin could make the parts, but then couldn't. In the end, and I don't understand this simply because I don't know how exhausts are made or bent, he said that this particular piece, the "y" section HAD TO BE mandrel bent.
I don't know what that means, but yes, I feel like I am going to the right place now.
It makes sense to me that a place that does this sort of thing SHOULD be able to say "Yes, 100% we can do this" rather than the "We're not sure how we are going to do this, but we will figure it out, hopefully sometime soon maybe" I was getting from the other shop.
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anasazi4st Offline
Senior Member
#16
(05-27-2019, 03:56 AM)Rob H Wrote: Yeah I'll bet that would be neat to watch, and that was in the 70's!
I'm sure with computerized systems now it's about the same but just typing in a few measurements. I didn't do the asking around, a friend was looking into it for me. It all started with how his cousin could make the parts, but then couldn't. In the end, and I don't understand this simply because I don't know how exhausts are made or bent, he said that this particular piece, the "y" section HAD TO BE mandrel bent.
I don't know what that means, but yes, I feel like I am going to the right place now.
It makes sense to me that a place that does this sort of thing SHOULD be able to say "Yes, 100% we can do this" rather than the "We're not sure how we are going to do this, but we will figure it out, hopefully sometime soon maybe" I was getting from the other shop.

Soooo many TC owners write in here, saying stuff like “I couldn’t fix it myself [no time, money, etc.] so I took it to XYZ Shop. They were very excited: ‘Gee I always wanted to work on a Turbocharger!’”, which in itself should be a red flag.

The repair facility should be able to fix it right, the first time. With the tons of reference material available—through the Internet and places like eBay, for example—there should not be a reason to “guess” or experiment when making a repair.

You should be quoted a fairly accurate repair cost and a reasonable expectation of when it will be completed.

If none of this happens to your expectations then get both yourself and your car out of there.

“SHOULD work” and “WILL work” are very often not the same thing.
Another proud dues-paying member.

1987 Turbo Coupe w/T5OD, 8.8 axle, grey smoke; most options. Got it in 1991 with 41K miles: 3 turbos, 2 heater cores, 1 T5OD full rebuild, 5 clutches, 1 head gasket, 2 Teves II ABS units, etc. later....
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