Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

highest CR that anyone has passed smog with?

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Old Apr 27, 2006 | 05:42 PM
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Default highest CR that anyone has passed smog with?

I was just wondering what the highest compression ratio anyone has passed CA emissions with?
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Old Apr 27, 2006 | 05:52 PM
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Default Re: highest CR that anyone has passed smog with? (Wazup)

What does it matter?

You're not going to run anything over 12:1 anyway.

Correct me if I'm wrong, but as long as a motor is tuned properly and all emissions equipment is functioning properly, compression doesn't mean jack.

edit: Maybe NOx will increase, as they goes up with cylinder temps if I'm not mistaken.
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Old Apr 27, 2006 | 06:00 PM
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Default Re: highest CR that anyone has passed smog with? (t0p_sh0tta)

yeah NOx occurs over 2500 degrees, and levels rise as heat does.
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Old Apr 27, 2006 | 06:24 PM
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Default Re: highest CR that anyone has passed smog with? (t0p_sh0tta)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by t0p_sh0tta &raquo;</TD></TR><TR><TD CLASS="quote">What does it matter?

You're not going to run anything over 12:1 anyway.

Correct me if I'm wrong, but as long as a motor is tuned properly and all emissions equipment is functioning properly, compression doesn't mean jack.

edit: Maybe NOx will increase, as they goes up with cylinder temps if I'm not mistaken.</TD></TR></TABLE>

correcto
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Old Apr 27, 2006 | 07:38 PM
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Default Re: highest CR that anyone has passed smog with? (postman)

so i could technically pass with an 11:1 CR? but if nox goes up as temp goes up, wouldnt i be screwed if the engine is hot when i get it smogged?
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Old Apr 27, 2006 | 08:43 PM
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Default Re: highest CR that anyone has passed smog with? (Wazup)

you are over thinking
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Old Apr 27, 2006 | 08:58 PM
  #7  
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Default Re: highest CR that anyone has passed smog with? (postman)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by postman &raquo;</TD></TR><TR><TD CLASS="quote">you are over thinking</TD></TR></TABLE>

lol...

you're right though.. but i am still confused... so is the bottom line that it would technically pass?
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Old Apr 27, 2006 | 09:01 PM
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Default Re: highest CR that anyone has passed smog with? (Wazup)

yes
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Old Apr 27, 2006 | 09:05 PM
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Default Re: highest CR that anyone has passed smog with? (t0p_sh0tta)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by t0p_sh0tta &raquo;</TD></TR><TR><TD CLASS="quote">What does it matter?

You're not going to run anything over 12:1 anyway.

Correct me if I'm wrong, but as long as a motor is tuned properly and all emissions equipment is functioning properly, compression doesn't mean jack.

edit: Maybe NOx will increase, as they goes up with cylinder temps if I'm not mistaken.</TD></TR></TABLE>

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Old Apr 27, 2006 | 09:14 PM
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Default Re: highest CR that anyone has passed smog with? (-DesTiNy-)

One of the shops that I worked for did emission testing. I've seen MANY smaller motors come in running like ****, that passed by a mile. Fortunately, I passed twice . I'm 99% sure that as long as it's tuned properly and all emissions equip is functioning, you'll pass with flying colors.
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Old Apr 27, 2006 | 09:55 PM
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Default Re: highest CR that anyone has passed smog with? (Wazup)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wazup &raquo;</TD></TR><TR><TD CLASS="quote">so i could technically pass with an 11:1 CR? but if nox goes up as temp goes up, wouldnt i be screwed if the engine is hot when i get it smogged?</TD></TR></TABLE>

You want the cat to be nice and hot when you test. The highest compression I passed smog with, was just under 12:1.
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