stumble afer warms up
Thread Starter
Heel & Toe
Joined: Apr 2010
Posts: 18
Likes: 0
From: Moorhead Minnesota
stumble afer warms up
hey guys, it is me agian the one with the freaky 383 stroker. went back with solus watched data. all seems good intergator 128 block learn 105 o2 switching have this question. when first fired motor had huge vac leak at base (wrong) gaskets. but at that time I turned throttle plate srew all the way out until it would idle. now no leak but iac is at zero at 825rpm. so truned the screw back in until I had 52 counts on iac. what is the spec for the throttle plate ange (bbk 58mm) and would this cause a lean pop or feel like half of the cylinders fall off then come back under heavy throttle? only at 170's temp after cloosed loop. had car tuned with throttle screw turned out. should I bring back to retune or let it go. ready to burn it down. one more question. has anybody used rams c4 coversion clutch that eliminates dual mass and used alum. with push style release bearing. my is measured down to the mm for clearance and under foot to floor it slips? sorry for all the questions.
Safety Car
Joined: Apr 2011
Posts: 3,660
Likes: 22
hey guys, it is me agian the one with the freaky 383 stroker. went back with solus watched data. all seems good intergator 128 block learn 105 o2 switching have this question. when first fired motor had huge vac leak at base (wrong) gaskets. but at that time I turned throttle plate srew all the way out until it would idle. now no leak but iac is at zero at 825rpm. so truned the screw back in until I had 52 counts on iac. what is the spec for the throttle plate ange (bbk 58mm) and would this cause a lean pop or feel like half of the cylinders fall off then come back under heavy throttle? only at 170's temp after cloosed loop. had car tuned with throttle screw turned out. should I bring back to retune or let it go. ready to burn it down. one more question. has anybody used rams c4 coversion clutch that eliminates dual mass and used alum. with push style release bearing. my is measured down to the mm for clearance and under foot to floor it slips? sorry for all the questions.
What injectors do you have in this new 383??
Thread Starter
Heel & Toe
Joined: Apr 2010
Posts: 18
Likes: 0
From: Moorhead Minnesota
stumble
I have 44lb trick flow injectors with tune . drove car with 24lb before tune and fell on it's face around 5500 rpm. after tune with 44's pulls hard up to 7000rpm. good power after 3500 when cam comes into play just have lean pop after sitting at light and if full throttle it seems like half cyl. shut down. I have 2 masters in automotive and I'am lost. need help this really puzzles me.
Thread Starter
Heel & Toe
Joined: Apr 2010
Posts: 18
Likes: 0
From: Moorhead Minnesota
383 closedl oop stumble.
after hours of anger finally found issue. the tune piggy back that went to my memcal pushed pins up and causing no contact. also found bad contact on 1 pin. repaired mamcal car runs great. thank you for all you suggestions. and as for the off idle lean pop. disconnected iac afer it went to zero. adjusted idle by throttle plate no light works perfect.
Last edited by getnakd; May 8, 2011 at 09:50 PM.
