LT1-LT4 Modifications 1993-97 Gen II Small Block V8

car bogs on launch after cc306 install

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Old Apr 1, 2011 | 03:17 PM
  #21  
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I can pull the computer and I have the tune saved in a file. The only cable I have is the jet cable with the metal box attached to it. Speed, are you on AFB if so what is your screenname? Josh, if you pm me your e mail I can send you the tune file, it would be great if you can catch something that they missed!
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Old Apr 1, 2011 | 03:38 PM
  #22  
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im transman on AFB send it to me aswell.. Ill pm you my email
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Old Apr 1, 2011 | 04:42 PM
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I love how every one that does not read the entire story always blame the same thing. When did a converter start making a car missfire,backfire or break up through out the power band?

Is the stall small for that cam.... YES

I guess his rear end gears being to small for whats recommended for that cam is causing a miss as well???? lmfao UM no....

Im going to start with the simple things first, Car needs to be data logged so you know whats going on and when its happening. If its still missing i would pull all the plugs. they might tell you something (lean/rich)? Also look for cracks in both plugs/wires. Dont always assume its the OPTI. Could be a weak coil.Do good diag and dont rush through it and get frustrated. look at all the wires and feel them for imperfections. One way that works great for me is to have the car in D and put the car under a load to about 2000-2500rpm for a few seconds or longer and if its missing you should feel it.
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Old Apr 1, 2011 | 06:16 PM
  #24  
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Originally Posted by 96TransAmboosted
I love how every one that does not read the entire story always blame the same thing. When did a converter start making a car missfire,backfire or break up through out the power band?

Is the stall small for that cam.... YES

I guess his rear end gears being to small for whats recommended for that cam is causing a miss as well???? lmfao UM no....

Im going to start with the simple things first, Car needs to be data logged so you know whats going on and when its happening. If its still missing i would pull all the plugs. they might tell you something (lean/rich)? Also look for cracks in both plugs/wires. Dont always assume its the OPTI. Could be a weak coil.Do good diag and dont rush through it and get frustrated. look at all the wires and feel them for imperfections. One way that works great for me is to have the car in D and put the car under a load to about 2000-2500rpm for a few seconds or longer and if its missing you should feel it.
You're right it's not the stall, its more likely the cam that won't run right at WOT below 3k due to its size.
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Old Apr 1, 2011 | 06:27 PM
  #25  
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Originally Posted by speed_demon24
You're right it's not the stall, its more likely the cam that won't run right at WOT below 3k due to its size.
so by that logic you can't WOT that cam in a manual car if its under 3000rpm? sorry but you are wrong. it will wake the car up a bunch by using the correct converter but its not going to bog and pop because it doesn't have a large enough stall. its an ignition or tune issue end of story. i can bet that 99% of the cars on this site don't have the correct stall for their setup.
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Old Apr 1, 2011 | 07:46 PM
  #26  
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99% lol ok, more like 50% probly dont, most people that build cars do it backwards, or plan on adding this or that part later and suffer from it untill they do, but this is most lily a tune issue, mail order is the worst way to tune a car. just because it worked on one car does not make it perfect for EVERY car.
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Old Apr 1, 2011 | 10:34 PM
  #27  
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I am hoping it is a tuning issue! It feels like the car is dumping fuel from a stop then about 2800 rpm it pulls like a raped ape all the way to 6500 with no issues. I did a small log with autotap and noticed my LTFT was 25% on bank 1 and 16 % on bank 2 at idle but as soon as i hit the throttle they went down to 0% I know that 25 is really rich but not sure what it really means? my 02 sensors are pretty new (5,000 miles or so on them) there is no ses light as well.
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Old Apr 2, 2011 | 08:58 AM
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At WOT your o2 sensors dont read.. It esentially goes into a speed density setting.. Thats why it reads zero.. I'm about to look at your tune btw
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Old Apr 2, 2011 | 09:04 AM
  #29  
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This thread is a perfect example as to how parts get a bad reputation. The cam has absolutely nothing to do with what the OP is experiencing, however on the same note, the op should consider complementing the power band with different stall, gears and tire before it will run what it's supposed to.
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Old Apr 2, 2011 | 09:46 AM
  #30  
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I think more people are pointing to the stall here more than the cam ssrrr but i totally agree..
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Old Apr 2, 2011 | 10:08 AM
  #31  
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Ditch the pcm4less tune...
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Old Apr 2, 2011 | 03:21 PM
  #32  
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I did not read wher it said a cam issue could be the problem, i would think TUNE TUNE or faulty ignition
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Old Apr 2, 2011 | 10:35 PM
  #33  
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I got a quick fix for the wot under 2800 rpms. Stop doing it. Regardless of the tune or ANY problem... If you are running under 2800 rpms with that cam you are doing it wrong. Who cares how it's running in that situation, YOU SHOULDN'T BE DOING IT.

Guys, I keep blowing stock bottom ends when I rev it to 10,000 rpms. How do I fix this?! I can't keep doing this! Please help!
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Old Apr 2, 2011 | 10:52 PM
  #34  
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Guess you should set your idle at 3K.......

Not go WOT under 2800? Ummmm idk what your trying to say here im guessing ease into the throttle till into the powerband??
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Old Apr 2, 2011 | 11:03 PM
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Was a joke obviously....


And he doesnt have the proper stall its been said he needs a new stall.
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Old Apr 2, 2011 | 11:11 PM
  #36  
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Originally Posted by Lawhead
Was a joke obviously....


And he doesnt have the proper stall its been said he needs a new stall.
I know the stall has been mentioned, I was just saying that regardless hunting for an alternative problem is a fools errand because the situation shouldn't arise in the first place!

And I deleted that last post because I thought it came off as too rude and I didn't want to come off like that! I'm glad you took it well tho
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Old Apr 5, 2011 | 02:14 PM
  #37  
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Originally Posted by glassjaw1704
I ordered a new opti from chandler so I will slap that on next week and see if that does the trick.
Thanks for the business
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Old Apr 5, 2011 | 04:01 PM
  #38  
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Indeed a new stall is in line. I am going with a yank 3000 or 3600 soon.
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Old Apr 5, 2011 | 04:44 PM
  #39  
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I bet it's your throttle position sensor.
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Old Apr 5, 2011 | 05:34 PM
  #40  
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I think its your tires . - being sarcastic

Last edited by 3 pedal SS; Apr 5, 2011 at 08:10 PM.
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