Test Pipe, anybody?
Pro
Joined: Sep 2024
Posts: 526
Likes: 114
Most states are moving towards pre OBDII vehicles being exempt. At this point in time that would mean ~1995 and older. Mainly because they just want to be able to plug it in and go... you know, the bar is very low for the amount of knowledge expected of your average inspection worker. California is a unique example only because the topography does hold a lot of pollutants there. On top of that you have a disproportionately large amount of old vehicles still around there compared to elswhere. Enough to cause real smog that hasn't been seen since the mid 70s? No. I think it should move up to that 95 mark like everything else. Anything beyond that is quite literally a disposable appliance aside from a few select vehicles anyway.
My 84 as it sits has literally everything deleted. Long tubes new exhaust no cats or air pump. The only operable part of the emissions system is the EVAP for the fuel tank. And it's nice not having the garage reek of fuel vapors. So by all counts. Yes I am part of the problem lol.
My 84 as it sits has literally everything deleted. Long tubes new exhaust no cats or air pump. The only operable part of the emissions system is the EVAP for the fuel tank. And it's nice not having the garage reek of fuel vapors. So by all counts. Yes I am part of the problem lol.
But California has made it extremely difficult for businesses to function who use trucks in their fleet. Did you know that in California any light truck (F150 - F350, for example) is considered a commercial vehicle and gets taxed as such? Just outrageous policy.
/rant
Le Mans Master
Joined: Aug 2017
Posts: 6,943
Likes: 1,490
From: New Jersey
Haha! Yeah, my mom remembers how gnarly the smog issue was growing up here. I am thankful for emissions and catalytic converters for the large amount of modern vehicles that are hitting the road every day. It just seems punitive at this point here because of the exact thing you mentioned: Older vehicles here are absolutely appliances. Yeah, we have a lot of older vehicles on the road here because we don't salt the crap out of roads and they still exist. I would even be ok with a mileage restriction for older cars and trucks.
But California has made it extremely difficult for businesses to function who use trucks in their fleet. Did you know that in California any light truck (F150 - F350, for example) is considered a commercial vehicle and gets taxed as such? Just outrageous policy.
/rant
But California has made it extremely difficult for businesses to function who use trucks in their fleet. Did you know that in California any light truck (F150 - F350, for example) is considered a commercial vehicle and gets taxed as such? Just outrageous policy.
/rant
NJ had a milage restrictions for classic vwhicles before they changed the guidelines... well more so what it could be driven for. Exhibition, education etc. If I put 500 miles a year on the vette its a lot. My daily gets 30k miles a year minimum.
For our fleet, if it is owned by the company it has to be plated commercial as well. No exceptions to cars either. They all fall under the same guidelines.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
The EPA cracked down on the manufacture of emissions defeat devices quite a while ago. Technically, if a vehicle was built with emission controls it is illegal to remove them regardless of the age or use of the vehicle. Hence the disappearance of the "test pipe."
You're going to have to make your own.
You're going to have to make your own.
Pro
Joined: Sep 2024
Posts: 526
Likes: 114
NJ charges registration by GVWR. While not as outrageous as California, a new f150 is like 250$ a year for registration for personal use.
NJ had a milage restrictions for classic vwhicles before they changed the guidelines... well more so what it could be driven for. Exhibition, education etc. If I put 500 miles a year on the vette its a lot. My daily gets 30k miles a year minimum.
For our fleet, if it is owned by the company it has to be plated commercial as well. No exceptions to cars either. They all fall under the same guidelines.
NJ had a milage restrictions for classic vwhicles before they changed the guidelines... well more so what it could be driven for. Exhibition, education etc. If I put 500 miles a year on the vette its a lot. My daily gets 30k miles a year minimum.
For our fleet, if it is owned by the company it has to be plated commercial as well. No exceptions to cars either. They all fall under the same guidelines.
Drifting
Joined: Nov 2018
Posts: 1,766
Likes: 648
From: USA
https://www.etwasbauen.com/shop/p/co...-kit-1982-1985
Don't know anything about them, but found this....
Don't know anything about them, but found this....
Last edited by '78CorvetteS.A.; Feb 9, 2025 at 08:10 AM.
Melting Slicks
Joined: Dec 2009
Posts: 2,237
Likes: 286
https://www.etwasbauen.com/shop/p/co...-kit-1982-1985
Don't anything about them, but found this....
Don't anything about them, but found this....
Drifting
Joined: Nov 2018
Posts: 1,766
Likes: 648
From: USA
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Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
The more I read this thread and now seeing the prices would you guys pay a forum member who welds to make these? Through work I have a business account with Send Cut Send. I could have them make the ends. I could probably source the tubing locally. After looking at the welds in that picture I know I can do better. You would be on your own for gaskets and bolts. But it would be WAY less than $200. I'm always looking for ways to make a little money on the side.
Oil Producer
Joined: Apr 2014
Posts: 9,375
Likes: 2,736
An interesting angle here would be to manufacture and sell them as intended for Private Track use only?
I mean that is legitimate.
On track, the rules don't matter as its not on public roads. Similar to the offroad community selling things as offroad use only.
I mean that is legitimate.
On track, the rules don't matter as its not on public roads. Similar to the offroad community selling things as offroad use only.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
I'm still thinking about selling them as lamps lol.
Thread Starter
Instructor
Joined: Jan 2019
Posts: 167
Likes: 33
From: Connecticut, USA
https://www.etwasbauen.com/shop/p/co...-kit-1982-1985
Don't know anything about them, but found this....
Don't know anything about them, but found this....
I don't know if there's a diff between '85 and '89?
Anybody?
Le Mans Master
Joined: Aug 2017
Posts: 6,943
Likes: 1,490
From: New Jersey
Later cars use a slip fit on one side and a bolt on socket style flange on the other if memory serves... much easier to make.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
I'm probably going to start making these and selling them to be honest. I didn't realize that they were hard to find. But I need a CAD file for the flange pieces. So that's what I'm working on. If anyone has a .DWG file or similar of the bolt flanges for 82-85 or the one flange for 86-91 please let me know. If you share it with me I'll either buy you lunch or only charge you shipping for a test pipe if you want one. Then you can be my guinea pig lol.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Can you take a picture of what you have? Like what was already said 82-85 is one style and then 86-91 is another.
I'm probably going to start making these and selling them to be honest. I didn't realize that they were hard to find. But I need a CAD file for the flange pieces. So that's what I'm working on. If anyone has a .DWG file or similar of the bolt flanges for 82-85 or the one flange for 86-91 please let me know. If you share it with me I'll either buy you lunch or only charge you shipping for a test pipe if you want one. Then you can be my guinea pig lol.
I'm probably going to start making these and selling them to be honest. I didn't realize that they were hard to find. But I need a CAD file for the flange pieces. So that's what I'm working on. If anyone has a .DWG file or similar of the bolt flanges for 82-85 or the one flange for 86-91 please let me know. If you share it with me I'll either buy you lunch or only charge you shipping for a test pipe if you want one. Then you can be my guinea pig lol.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
I wonder if the two bolt flange on the 86-91 for the ball and socket is the same bolt spacing as an off the shelf flange from a parts store? Looking at pictures they seem to be bigger but it's hard to tell.