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Old 04-22-2014, 06:03 PM   #21
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About to try to get my new turbo 95 miata to pass Denver emissions. Will only need to pass the sniffer test. I need to buy a cat since it just has a test pipe currently. If I spend the buck on carb legal cat, is it worth it?

Unfortunately this thing has an e-manage blue system and not the MS yet. I was hoping to pass with a good tune and cat...this thread gives me hope.

Last edited by Test Subject; 04-22-2014 at 07:30 PM.
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Old 04-22-2014, 07:25 PM   #22
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I would buy the Magnaflow California catalytic converter. They flow pretty well, and should help you get down to the CO numbers you need.

Jim
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Old 04-22-2014, 07:32 PM   #23
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Also note: I am only running 5 PSI currently. I am thinking I can safely pass emissions in boost. I was planning on stepping it up to 10-15 psi after the pass and driving through the road sides in hopes of not having to step it down again.

Should I return the car to stock injectors, open the wastegate fully? Any other tips so I don't have to take the test a few times?
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Old 04-22-2014, 07:35 PM   #24
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Done emissions a billion times in Denver.

Any cat will do as long as it actually does its job. I never worried about some CARB number. **** California.

Throw some E85 in it.

Done.

If you see a roadside test station, make it a point to go by it a few times a week. Don't coast by just have nice light even throttle as you go by. Sometimes this will negate the need to come in for emissions at all.

Or just register it in Gilpin or something.
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Old 04-22-2014, 07:39 PM   #25
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Id obviously have to re-tune it for e85? Pretty sure in Colorado you have to register it in the county you live in?

I will look to pass the roadside after I initially get it plated. Unfortunately I bought this guy's hot mess due to the parts already on it.
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Old 04-22-2014, 07:54 PM   #26
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Emissions in Co is by county. Jeffco is brutal, and I had a standard cat with a megasquirt. First couple of tries, I couldn't pass until I backed off the timing and leaned out all of the tables and installed the Magnaflow cat.
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Old 04-22-2014, 07:57 PM   #27
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Quote:
Originally Posted by jbresee View Post
Emissions in Co is by county. Jeffco is brutal, and I had a standard cat with a megasquirt. First couple of tries, I couldn't pass until I backed off the timing and leaned out all of the tables and installed the Magnaflow cat.
This is my fear with just a standard cat and tune.
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Old 04-22-2014, 08:05 PM   #28
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Anybody have experience with this product?
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Failed Emissions.  Suggestions?-g2p.jpg  
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Old 04-22-2014, 08:22 PM   #29
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Quote:
Originally Posted by lexintexan View Post
Anybody have experience with this product?
Tried it.. but I suspect I had too much else going on for it to work.
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Old 04-24-2014, 11:47 AM   #30
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Quote:
Originally Posted by Test Subject View Post

This is my fear with just a standard cat and tune.
You should be fine. I'm pretty sure all emissions testing for the Denver Metro area is the same. I passed easily with numbers half of the limits on my original cat and tuned for 14.7 everywhere but boost. Didn't bother with e85 or any other tricks.
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Old 04-24-2014, 01:13 PM   #31
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Quote:
Check out all the codes it had! They said I passed CEL but they just didn't bother to look behind my ScanGauge lol.
You have ODB1, why would they read codes? That's the whole reason you go on a sniffer.

anyway, buy my cat if you want one.




For everyone else in this thread:

Having a turbo does not change anything in terms of emissions. tuning like a ******** does.
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Old 04-24-2014, 01:25 PM   #32
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Thanks Braineack. I am fairly confident in passing but need to fix a rich idle condition using e-manage blue. Might just dive into a megasquirt instead of using this POS bandaid.
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Old 04-24-2014, 01:27 PM   #33
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Q. why is your emanage not pulling correctly at idle?!

A. tuning like a ********.


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