1976 '02 and Emissions

[jackhossross]

Hey guys,

 

I live in Unincorporated Arapahoe County, trying to figure out what emissions testing will mean for me. Pretty sure, the 1976 year qualifies as needing to pass emissions here. What will that entail? Catalytic Converter, 02 sensors and a proper tune on the m10? What if I swap an m20 into the car?

 

Thanks,

[calw]

according to https://www.colorado.gov/pacific/dmv/gas-vehicles , "portions of arapahoe county" require emissions testing.  But wait... what needs to be tested and how often is shown there.  The details look like they were written by someone who left the IRS because the tax code was too simple.  

 

Not mentioned on that website, at least where I looked, but per discussions years ago, I think that if a test is required, the inspector will look for the emissions equipment originally on the car, and it will have to pass the tailpipe test at a level that varies with year of manufacture.  With a different than original engine, I have no idea...  Others with modified cars will no doubt speak up later.

[jimk]

On 6/9/2020 at 4:03 PM, jackhossross said:

What if I swap an m20 into the car?

@irdave can offer info it you have to test.

[irdave]

Yeah, the DMV should tell you if you need one based on your address.  It would be nice if you didn't...  If you do, you need the stuff that was originally on the car, and as Cal mentioned, it has to pass the tests it did back in the day.  You should only have to pay once, so if it fails the first time, you can come back and not have to pay a second time.  Might have to lean the crap out of it to get it to pass.  I've heard different fuel can help it run clean, too.

 

If it's a swap, it has to pass emissions for whatever is newer, the car or the motor- so whatever emissions were on the newer motor need to be on the car and working ish.  I may or may not have had an e46 wagon with a rather complete e46m3 swap.  It had all the m3 emissions stuff.  They never realized it was a swap- but it passed emissions for the m3, so it would have been fine- I just didn't have to do all the paperwork.

 

Having said that, if your m20 has carbs, they might not realize it's not stock...  They freaked out about my '76 having fuel injection- had to jump through some hoops, but it's fine.  Damned thing passes emissions in CA, fully legal...

[RicanBeemer]

Hello All, 

 

I want to get my car upgrade it,

 

     Am looking for a good complete running M10 engine for my 73 to use while I get my original engine rebuilded.

 

Also a 5 speed tranny and a LSD diff. 

 

Anyone know of a good machine shop, engine builder familiar with our engines in the Colorado Springs area? 

 

Andres

Edited June 13, 2020 by RicanBeemer
oops, posted on wrong thread, sorry

[nhep23]

On 6/12/2020 at 11:25 AM, RicanBeemer said:

Hello All, 

 

I want to get my car upgrade it,

 

     Am looking for a good complete running M10 engine for my 73 to use while I get my original engine rebuilded.

 

Also a 5 speed tranny and a LSD diff. 

 

Anyone know of a good machine shop, engine builder familiar with our engines in the Colorado Springs area? 

 

Andres

Andres -sadly not down in the Springs but I used "Area Automotive Machine" on 64th and Federal (north of Denver) and they were absolutely great. Would highly recommend them even with the hike for you to get there...

I had them:
-regrind crank

-bore cylinders

-deck head/block

-hot tank block and remove studs/freeze plugs

-reassemble head with all new parts.

-refinish flywheel

 

All in it was about $1200 and the engine was in their shop for 2 months.