Dual carb back to stock fi, Oregon, need to pass the emissions visual |
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Dual carb back to stock fi, Oregon, need to pass the emissions visual |
Curly! |
Jul 23 2021, 07:33 PM
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#1
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Newbie Group: Members Posts: 4 Joined: 4-June 21 From: NW Oregon Member No.: 25,603 Region Association: Pacific Northwest |
Good evening from lovely NW Oregon, USA. It’s not enough to run an efficient, clean burning engine, here in Oregon, it also has to be a stock application. I’m fooked! The son in law thought he’d do us a favor and bought us an out of state ‘75 2.0. The wife had a ‘71 she drove for 10 years, 40 years ago. This car has a dual carb setup. I need to return it to (as close as I can get in order to fool the inspectors) stock FI. I searched, and I’m sure it’s here somewhere, but I’m not smart enough to find it. Can someone point me to an appropriate thread? Or feel free to answer in any way you deem helpful. Thanks so much.
Curly LaJolla |
brant |
Jul 24 2021, 10:22 AM
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#2
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914 Wizard Group: Members Posts: 11,639 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
The problem is going to be the cam
If a previous owner put a high lift cam into it for the carbs That will disrupt the vacuum signal to the Djet mps Due to valve overlap at high lift And rebuilding the motor is the only way to change the cam Can your son in law register it outside of the emissions zone? |
bbrock |
Jul 24 2021, 02:29 PM
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#3
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
The problem is going to be the cam If a previous owner put a high lift cam into it for the carbs That will disrupt the vacuum signal to the Djet mps Due to valve overlap at high lift And rebuilding the motor is the only way to change the cam One option would be to convert to modern EFI. I've 99% decided I'm going to convert my dual carb engine to Microsquirt for this reason among others since they can be mapped to run with any cam (or so I'm told). There are even stealth setups that use the stock plenum air cleaner, intakes and even injectors and many of the sensors if you like. @Matty900 even has the ECU and wideband controller inside an OEM ECU case. Even if an inspector did peek inside the engine bay, I doubt they'd be able to tell is wasn't stock. |
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