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05-01-2007, 10:32 AM
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#1
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Join Date: Oct 2006
Posts: 929
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inspection
the iroc failed inspection. what a surprise. took it through last week and right before it went on the rollers the water pump blew up. went this morning with the new water pump installed made it to the rollers, failed for co2. state wanted .6xx and my car tested 2.4xx. the shop said it might be timing or carb adjustments. i dont have the money for them to spend on it and guess if its timing or not. does anyone know?
info on the car: 350, 600 cfm holley carb, new cat with 10 miles on it, light cam, headers without smog pump, stock exhaust.
any info would be great. thanks
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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05-01-2007, 10:36 AM
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#2
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Join Date: Oct 2004
Location: Clifton, NJ
Posts: 295
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was the car fully warmed up and the cat at operating temp? with lack of smog pump, the car needs to run a while before the cat gets up to ideal operating temp and operates to its fullest ability
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1999 Black Z28 with go fast stuff
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05-01-2007, 10:39 AM
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#3
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Join Date: Oct 2006
Posts: 929
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yes and no, it was when i got there then the shop was busy so i had to wait 40 min for them to put it on the rollers.
i think my timing is off yet again because it stalled when i got it home and barely started again.
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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05-01-2007, 04:13 PM
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#4
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Join Date: Oct 2004
Location: Clifton, NJ
Posts: 295
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Quote:
Originally Posted by Iroc-z86
i think my timing is off yet again because it stalled when i got it home and barely started again.
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sounds like that's a bigger contributing factor...need to get a cleaner burn
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1999 Black Z28 with go fast stuff
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05-01-2007, 10:53 PM
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#5
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Join Date: Oct 2006
Posts: 929
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*sigh* i love my beater; its all electronic and dont have to worry about this crap lol
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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05-01-2007, 10:55 PM
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#6
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Join Date: Feb 2007
Location: Williamstown
Posts: 355
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mine failed all 3 emmisstions test the one was suppose to be 800 my car read 2650.
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05-01-2007, 11:03 PM
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#7
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Join Date: Oct 2006
Posts: 929
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ok i dont feel that bad now. i only failed one because its running a little rich...
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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05-01-2007, 11:06 PM
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#8
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Iroc-z86
ok i dont feel that bad now. i only failed one because its running a little rich...
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Dude, don't worry. I set the state NOx record with a 427 Vette.  A little tuning goes a long way in your case.
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05-01-2007, 11:09 PM
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#9
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Join Date: Oct 2006
Posts: 929
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yeah im just wondering what should i start with first? timing or carb? and what do i tune on the carb? the jets or the idle mix screws??
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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05-01-2007, 11:50 PM
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#10
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Join Date: Apr 2006
Location: Landing, NJ
Posts: 1,042
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Quote:
Originally Posted by Iroc-z86
yeah im just wondering what should i start with first? timing or carb? and what do i tune on the carb? the jets or the idle mix screws??
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get a nice 2.8 fuel injected apple its all good 
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87 Trans Am 5.7, Auto, posi disc rear, flowmaster muffler, all org car.
88 Iroc-Z TPI, Cammed 350, Vortex Heads, Magnaflow, T5, 4 Wheel Disc, 3.27 9 Bolt PBR.
91 Trans Am VertTPI 350. 700r4, K&N Air Cone, Ryven Muffler.
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05-02-2007, 07:03 PM
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#11
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Join Date: Oct 2006
Posts: 929
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well the timing is way off, im not even sure the timing mark that came on the engine is the correct one for the block because i just cant get the timing right so it will run good. i even brought the car to a speed shop and i know the owner really well; even he says the timing mark might be wrong. any ideas?
the carb needs work too, has some vaccuum leaks. if anyone is getting rid of a carb let me know, must be 650cfm.
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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