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Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Just ran Shags through Oregon DEQ. I have read some concerns about modified cams and their effects on emissions, so here are my results, from this morning, and from 2008:

HC: 39 PPM, down from 66 PPM (220 allowed)
CO: 0.0000%, down from .0114% (1% allowed)
CO+CO2: 14.3%, up from 13.4% (6% minimum required)

Not bad, eh? Probably helped to rid the system of busted rings, blown valve seals, and the factory WUR as well. . .
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

flosho · Posted: Sat Sep 04, 2010 5:14 am Post subject:

You hippie..

Nothings better than dumping a bunch of gas out the tailpipe and blowing flames on the 931..

I'll stick to hill-billy country where I don't have emissions, but good numbers.
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Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

flosho · Posted: Sat Sep 04, 2010 7:01 am Post subject:

Ahh.. but can you do it at idle?

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morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

i've been to the bi-anual test last summer and the 932 engine pulled EURO4 emission specs...that is quite impressive since last summer the newest and "best" cars could do EURO5.
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Supercharger and EFI kits
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Joes924Racer · Posted: Sun Sep 05, 2010 4:48 am Post subject:

DEQ Gonna be a first 4 me as i just stepped over into the counites that require me too go thru.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

bnoon · Posted: Sun Sep 05, 2010 5:29 am Post subject:

Knock on wood that we never have to do that here. Too many farmer's and their field trucks to run this state.

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'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
Porscheless

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Just ran it out to eastern oregon and back. . .600 miles at 30 MPG!
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Suhweet!
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Cedric · Joined: 27 Aug 2004 Posts: 2809 Location: Sweden

Thats great! how fast were you driving?
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1980 924 Turbo
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Joes924Racer · Posted: Tue Sep 07, 2010 11:00 am Post subject:

*Thats great you did it man.. Feels good huh.
30 miles per too thats sweet.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

bnoon · Posted: Wed Sep 08, 2010 1:35 am Post subject:

30 MPG on a 30+ year old technology base is awesome. How much of that comes from the electronic WUR? I haven't really paid much attention to mine since I think I've filled up maybe 3 times this year and pretty much rape it every time I drive it...

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'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
Porscheless

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Cedric, I was cruising at 75-85 most of the time.

How did it do that well? Combination of fully refreshed fuel system (rebuilt dizzy, fresh injector service, new lines, new FV, UTCIS), fresh motor, and of course the lambda system, which operated perfectly to maintain stoich at cruise.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

bnoon · Posted: Wed Sep 08, 2010 3:17 am Post subject:

I guess what I was asking was: How much of an improvement over stock is 30MPG? I don't know what stock setup can get on open road cruise because I've never done it.
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'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
Porscheless