Forced Induction Supercharger/Turbocharger

weird wideband readings and spool problems

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Old Apr 8, 2006 | 09:12 PM
  #1  
viper03af's Avatar
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From: Belleville, IL
weird wideband readings and spool problems

how the hell am i suppose to tune this crap
notice the WB reading spiking like that it not really lean plugs and exhuast points to rich


now one of the next run.......(good but that one little spike)


now onto my low 60 foot times

notice here this is my best 60 and best 1/8 mile log (yelllow is maf reading
also notice the WB readings are better


now notice this one (i have many like it) (look at the yellow for the maf reading)



see the differance????

i looked in the excel file........ on my 7.6 runs and many others it took almost exalcy 1 second every time to max the maf.....

now the new logs are all 2-2.5 seconds

WTF
Old Apr 8, 2006 | 09:35 PM
  #2  
Kevin Blown 95 TA's Avatar
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Re: weird wideband readings and spool problems

I don' tknow what software you're using, but you might want to set it to average the samples so you can see what's going on.

If you're detonating by any chance, it will play hell with your mixture readings.
Old Apr 8, 2006 | 10:03 PM
  #3  
viper03af's Avatar
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Re: weird wideband readings and spool problems

Originally Posted by Kevin Blown 95 TA
I don' tknow what software you're using, but you might want to set it to average the samples so you can see what's going on.

If you're detonating by any chance, it will play hell with your mixture readings.
the KR you see is false even on runs with KR removed i still see these readings

its HP tuners

i tried using the average thing and it seems close, but then it still a "high" average and i add to much fuel and it goes rich like the one run was



any other info

www.turbov6camaro.com/holttune << all my scans the 7.6 is my best 60 and best 1/8 mile form a few weeks ago
Old Apr 9, 2006 | 10:26 AM
  #4  
viper03af's Avatar
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Re: weird wideband readings and spool problems

TTT anyone

someone had to have seen this before
Old Apr 9, 2006 | 10:34 AM
  #5  
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Re: weird wideband readings and spool problems

An intermittent miss will cause lean spikes in the WBO2. If a cylinder misses, it pumps unburned air into the exhaust system.
Old Apr 9, 2006 | 10:36 AM
  #6  
viper03af's Avatar
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Re: weird wideband readings and spool problems

Originally Posted by engineermike
An intermittent miss will cause lean spikes in the WBO2. If a cylinder misses, it pumps unburned air into the exhaust system.
i was thinkning that to..... but if it is missing cause's? spark blow out? i can't "feel" the mis going down the track

also i'm using a LC1 for my WBO2
Old Apr 10, 2006 | 09:50 AM
  #7  
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Re: weird wideband readings and spool problems

Originally Posted by engineermike
An intermittent miss will cause lean spikes in the WBO2. If a cylinder misses, it pumps unburned air into the exhaust system.
thank for your help after your post i started looking into it and a few tuners and talked to inovative this seems to be the problem
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