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Topic: cant get my csu 750 to idle lean (Read 385 times)
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minn50
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Posts: 64
Location: S.S.P., MINNESOTA
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tried adjusting the mixture screws but nothing really happens.
do i need to change the low speed air bleeds?
wideband reads 11.6 to 12.0 idling. it smells rich also.
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89' NOTCH- 327 TURBO, C-4 TRANS
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88' MUSTANG GT- TUBBED,CAGED,TURBO KIT
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87' GN- BUILT STREET CAR
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brianj5600
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Location: Middle TN.
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67 Mustang coupe, 351w, S475, C4, 8.8 http://videos.streetfire.net/profile/brianj5600.htm It's amazing what you can do when you don't know that you can't do it. |
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furchaser
Pissing off rotards
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Location: Arnprior Ontario Canada
1980 Mazda RX7 twin turbo small block chev
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Nice Brian ,, that was the one I was thinkin of but couldn't remember where.  |
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Generally speaking, you aren't learning much when your mouth is moving.
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brianj5600
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I am not the search police, but I have found that the quickest way to find most answers is to search. I learned a lot that I was not looking for in the process too.
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67 Mustang coupe, 351w, S475, C4, 8.8 http://videos.streetfire.net/profile/brianj5600.htm It's amazing what you can do when you don't know that you can't do it. |
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minn50
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Posts: 64
Location: S.S.P., MINNESOTA
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got it working. set the secondary plate and i was able to get the idle afr to adjust. it is very touchy tho.
when going into throttle it goes pretty rich (10.1 afr).
headed to the dyno and get it sdet there. i am only running about 20* timing
going to put more in it and use a btm to take it out when boosting.
wish me luck
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89' NOTCH- 327 TURBO, C-4 TRANS
-------------------------------------
88' MUSTANG GT- TUBBED,CAGED,TURBO KIT
-------------------------------------
87' GN- BUILT STREET CAR
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brianj5600
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Is it going rich because the PV is opening? Or light throttle?
Good luck!
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67 Mustang coupe, 351w, S475, C4, 8.8 http://videos.streetfire.net/profile/brianj5600.htm It's amazing what you can do when you don't know that you can't do it. |
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mustang-junky
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How far out are your idle mixture screws? Mine are 1/2 turn out and the cars idle(AFR) is between high twelves and low thirteens. I am not sure if this is where it should be, but if I lean it out any the car will get a lean stumble on tip in. Good luck on the dyno trip!.
Jess
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'90 lx hatch.
351w, Windsor SR. heads, Victor Jr. intake, CSU carb, HP performance kit, Precision 76gtsh turbo.
9" rear, Ladder bars, 390/45 R15 drag radials. Redneck C-4
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