Houston, We have a problem....
Le Mans Master
Joined: Apr 2000
Posts: 5,202
Likes: 10
From: cincinnati ohio
St. Jude Donor '09
You're tryin' to pass emissions with this cam? 
Good luck
Duration at 0.006" Lift: Intake: 308° Exhaust: 318°
Duration at 0.050" Lift: Intake: 234° Exhaust: 244°
Lift at Cam: Intake: 0.325" Exhaust: 0.340"
Lift at Valve: Intake: 0.488" Exhaust: 0.510"
Timing at 0.050" lift: Open Close
Intake: 10° BTDC 44° ABDC
Exhaust: 59° BBDC 5° ATDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°
Good luck
Duration at 0.006" Lift: Intake: 308° Exhaust: 318°
Duration at 0.050" Lift: Intake: 234° Exhaust: 244°
Lift at Cam: Intake: 0.325" Exhaust: 0.340"
Lift at Valve: Intake: 0.488" Exhaust: 0.510"
Timing at 0.050" lift: Open Close
Intake: 10° BTDC 44° ABDC
Exhaust: 59° BBDC 5° ATDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°
Race Director
Joined: Feb 2005
Posts: 16,100
Likes: 17
Rich
Last edited by rihwoods; Oct 3, 2007 at 03:54 PM.
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
I have a similar situation with my Q-Jet only my HC's are near 3400 at idle. I don't have to pass smog tests here but I had them test it because the thing always stinks of HC's when idling.
Anyway.............the problem turns out to be the idle circuit it the carb is actually lean and it's pulling fuel from another area making the thing seemingly run rich, it's actually running lean.
What carb are you running?
Anyway.............the problem turns out to be the idle circuit it the carb is actually lean and it's pulling fuel from another area making the thing seemingly run rich, it's actually running lean.
What carb are you running?
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Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Which head gasket? Which RPM heads: 70cc or 64cc? What pistons? ... and ... How far (if any) down in hole?