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fiveoformula Member

Joined: 08 Aug 2007 Posts: 1799 Location: OR
1988 Pontiac Formula
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Posted: Thu Feb 23, 2012 11:25 am Post subject: Carb & emissions |
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Well I seem to have the charging problem fixed on this '87 Bird im working on, the next project is getting it thru emissions. It has a new CC carb, (305 LG4) changed plugs and wires, cap & rotor looked fairly new when I pulled them, changed oil and filter.
Results on the first try;
HC- 450 (220 limit)
C0- 10% (1% limit)
I tried setting the timing retarded another 4ish degrees with no effect. Any thoughts on what I should try next? I know next to nothing about carbs, I know the choke doesn't work and the air pump is also disconnected right now. _________________
'88 FORMULA |
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Feb 23, 2012 11:58 am Post subject: |
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Choke and air pump wont do a damn thing for emissions when you test.
As always, get the car HOTTTTTTTTTTTTTTTTT
Carb uses a O2 as well.
I'd retard the timing about ten degrees, drill a 5/16" hole infront of the cat, and add some methanol race fuel. About 1 part per 5 gallons.
Then limp it over and pass.
Oregon emissions sucks. Do they still drive it up and down from 25mph? _________________ A redline a day keeps the carbon away! |
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turbo_jimi Member

Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Thu Feb 23, 2012 12:09 pm Post subject: |
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87 bird? Register in WA. It's exempt up here.  _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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RSFreak The other "John"

Joined: 23 Jan 2004 Posts: 2946 Location: Renton
1989 Chevrolet Camaro RS
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Posted: Thu Feb 23, 2012 12:27 pm Post subject: |
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| Twilightoptics wrote: | | drill a 5/16" hole infront of the cat |
I never heard of this method. It works? _________________ '86 Trans Am - 5.0L TPI - LT1 cam - 700R4 - WS6
'85 Camaro Berlinetta - IROC clone
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fiveoformula Member

Joined: 08 Aug 2007 Posts: 1799 Location: OR
1988 Pontiac Formula
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Posted: Thu Feb 23, 2012 12:38 pm Post subject: |
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| Twilightoptics wrote: |
As always, get the car HOTTTTTTTTTTTTTTTTT
I'd retard the timing about ten degrees, drill a 5/16" hole infront of the cat, and add some methanol race fuel. About 1 part per 5 gallons.
Oregon emissions sucks. Do they still drive it up and down from 25mph? |
Won't an exhaust leak bring down c02 emissions and possibly fail me that way to?
They only check idle emissions
And It was sitting at about the 220* mark on the temp gauge so it was pretty hot.
Oh and It could barely move from a stop with the timing retarded that much... lol |
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fiveoformula Member

Joined: 08 Aug 2007 Posts: 1799 Location: OR
1988 Pontiac Formula
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Posted: Thu Feb 23, 2012 12:45 pm Post subject: |
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| turbo_jimi wrote: | 87 bird? Register in WA. It's exempt up here.  |
Problem is I don't live there  |
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turbo_jimi Member

Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Thu Feb 23, 2012 1:03 pm Post subject: |
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| fiveoformula wrote: | | turbo_jimi wrote: | 87 bird? Register in WA. It's exempt up here.  |
Problem is I don't live there  |
True...the cops don't like it when your DL is different from your registration. _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Feb 23, 2012 1:06 pm Post subject: |
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Never had a problem with co2. Bring idle to 100 below max for the test. _________________ A redline a day keeps the carbon away! |
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fiveoformula Member

Joined: 08 Aug 2007 Posts: 1799 Location: OR
1988 Pontiac Formula
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Posted: Thu Feb 23, 2012 2:06 pm Post subject: |
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| Oh yeah, forgot to mention idle is set at about 1K rpm |
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RSFreak The other "John"

Joined: 23 Jan 2004 Posts: 2946 Location: Renton
1989 Chevrolet Camaro RS
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Posted: Thu Feb 23, 2012 2:45 pm Post subject: |
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| turbo_jimi wrote: | | fiveoformula wrote: | | turbo_jimi wrote: | 87 bird? Register in WA. It's exempt up here.  |
Problem is I don't live there  |
True...the cops don't like it when your DL is different from your registration. |
You'd be surprised how many Crewbies have their cars registered at "other" addresses!  |
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DBL_TKE Member

Joined: 28 Feb 2007 Posts: 1505 Location: Aloha, OR
1991 Chevrolet Camaro Z/28
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Posted: Thu Feb 23, 2012 2:51 pm Post subject: |
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| RSFreak wrote: | | turbo_jimi wrote: | | fiveoformula wrote: | | turbo_jimi wrote: | 87 bird? Register in WA. It's exempt up here.  |
Problem is I don't live there  |
True...the cops don't like it when your DL is different from your registration. |
You'd be surprised how many Crewbies have their cars registered at "other" addresses!  |
And doesn't the law state that you have 30 days or something to change your address when you move. In which case you would be able to use that excuse for more than a month So, how exactly does one explain that to a cop? _________________ Richmond 3.73 posi| 36/24 sway bars | SLP LM2 | Koni's | Ground Control 800/200 | Y2K wheels | Dyno Don headers & Y-pipe | airfoil | BBK underdrive pulleys | Raised strut mounts | Extended ball joints | LCARB'S
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Dewey316 The Lama

Joined: 08 Jan 2004 Posts: 7295 Location: Bringing the tech
1990 Chevrolet Camaro RS
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Posted: Thu Feb 23, 2012 3:08 pm Post subject: |
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| Multiple addresses. You can have your registered address and also have a mailing address, so you can get your mail and such at one address but the address used for the registration and to determine if DEQ is required is different. You do though have to change your address on your license with DMV to match, so again, you end up with 2 addresses on your license. It is easier to do it in state, I am not sure how you go about living in one state and registering a car in another state. |
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fiveoformula Member

Joined: 08 Aug 2007 Posts: 1799 Location: OR
1988 Pontiac Formula
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Posted: Thu Feb 23, 2012 3:29 pm Post subject: |
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| Can you use a PO box? |
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Feb 23, 2012 3:39 pm Post subject: |
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Only for your mailing address, not residence where the car is located. _________________ A redline a day keeps the carbon away! |
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Al Hasse Member

Joined: 19 Nov 2005 Posts: 4379 Location: Bremerton, WA
1992 Chevrolet Camaro RS
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Posted: Thu Feb 23, 2012 3:55 pm Post subject: |
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| Dewey316 wrote: | | I am not sure how you go about living in one state and registering a car in another state. |
Enlist in the military
My car was registered in Michigan for almost my whole military career, mainly to avoid some of the excessive licensing fees. Seriously though, I don't know of any other way to legally do it. _________________ 92 Camaro
89 Camaro
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BluFbdy Member
Joined: 16 Jul 2010 Posts: 915 Location: Port Orchard WA
1989 Chevrolet Camaro RS
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Posted: Thu Feb 23, 2012 4:49 pm Post subject: |
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I used to trick AZ emissions with rubbing alchohol in the tank, half tank with 3 LARGE bottles, put it in a mile before the teat, shake the tank up and test, always passed with under half allowable, first time I failed with double hc, be sure to fill the tank right away though and don't beat on it for a bit so the alcohol works its way out
Probably not the best method but I dropped alot on a new cat, intake cleaning new egr etc etc and tried the crap from the parts stores with no luck, the rubbing alcohol trick came from my dads friend who was a mechanic, used to charge people to guarentee a passed emissions test, good repeating business lol _________________ If you expect a kick to the balls and get a slap to the face its still a victory
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Feb 23, 2012 4:52 pm Post subject: |
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That's why I like race grade methanol. It's designed to be burned in a piston engine. Rubbing alcohol, not so much. _________________ A redline a day keeps the carbon away! |
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BluFbdy Member
Joined: 16 Jul 2010 Posts: 915 Location: Port Orchard WA
1989 Chevrolet Camaro RS
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Posted: Thu Feb 23, 2012 4:58 pm Post subject: |
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Well yeah I guess you can do it the right way lol I go for cheap and effective, although that tends to bite you later, guess I'm lucky? _________________ If you expect a kick to the balls and get a slap to the face its still a victory
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Feb 23, 2012 10:45 pm Post subject: |
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| I have never had an issue using Iso-Heet (isopropyl "rubbing" alcohol) to get cars past emissions. You just run the tank down to damn near empty so you don't have to buy very much (one small bottle does it), don't have to get very far while running on the alcohol (first stop after the test is always the gas station) and you can add it right around the corner from the test station. |
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Fri Feb 24, 2012 10:33 am Post subject: |
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Iso Heet is made for engines : O)
Race grade methanol per volume is way cheaper.
1 gallon of methanol is about 6.50$ last time I bought it.
Iso heet is what, a buck a 8oz bottle?
That's $16 a gallon! _________________ A redline a day keeps the carbon away! |
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