Notices
Series I Engine Tuning Forum EMS (Flash Tuning, Interceptor, Piggy Back, Stand Alone)

Cobb Datalogs

Thread Tools
 
Rate Thread
 
Old May 2, 2011 | 11:25 AM
  #176  
darnellm's Avatar
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Check out this log.
The dyno operator missed 3rd and wound out 5th gear be mistake.
Attached Files
File Type: pdf
datalog2.pdf (67.4 KB, 311 views)
Reply
Old May 2, 2011 | 01:12 PM
  #177  
WTBRotary!'s Avatar
Drummond Built
iTrader: (6)
 
Joined: Aug 2008
Posts: 3,707
Likes: 1
From: DFW, Texas
Holy cow Darn. Your like 20g/s more than my datalog I took yesterday. Your engine seems
Very strong
Reply
Old May 2, 2011 | 07:50 PM
  #178  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,139
you can make the MAF put out any number you want it to ....
Reply
Old May 3, 2011 | 07:02 AM
  #179  
darnellm's Avatar
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Originally Posted by TeamRX8
you can make the MAF put out any number you want it to ....
It is my understanding that Jeff calibrates the MAF early on in his tuning sevice.
The run that was posted was on v4_0_3
Reply
Old May 3, 2011 | 07:44 AM
  #180  
Flashwing's Avatar
3-wheeler
 
Joined: Dec 2005
Posts: 2,734
Likes: 1
From: Phoenix
Originally Posted by WTBRotary!
Holy cow Darn. Your like 20g/s more than my datalog I took yesterday. Your engine seems
Very strong
Originally Posted by TeamRX8
you can make the MAF put out any number you want it to ....
Remember that the MAF calibration will alter the displayed airflow. Comparing Mass Airflow between cars with calibration adjustments is pretty pointless. The only way this measurement is effective is if you know what your expected airflow is for a given load/rpm.
Reply
Old May 3, 2011 | 05:16 PM
  #181  
WTBRotary!'s Avatar
Drummond Built
iTrader: (6)
 
Joined: Aug 2008
Posts: 3,707
Likes: 1
From: DFW, Texas
Flash & Team... how much would temperature affect the displayed airflow from the MAF? Reason im asking is one day @ 85 degrees I took a datalog and maxed out my MAF at 225g/s while last night I was hitting 245g/s @50 degrees. Would that 35 degree difference make up for that extra 20g/s?

Last edited by WTBRotary!; May 3, 2011 at 05:19 PM.
Reply
Old May 3, 2011 | 05:34 PM
  #182  
MazdaManiac's Avatar
Banned
iTrader: (3)
 
Joined: Oct 2003
Posts: 16,386
Likes: 27
From: Under my car
Originally Posted by WTBRotary!
Would that 35 degree difference make up for that extra 20g/s?
If you really have to ask that question, then you probably don't need to work yourself any harder to make sense of MAF readings.
Reply
Old May 3, 2011 | 05:39 PM
  #183  
WTBRotary!'s Avatar
Drummond Built
iTrader: (6)
 
Joined: Aug 2008
Posts: 3,707
Likes: 1
From: DFW, Texas
Yeah... I know Jeff... :/ I sound ridiculous right now and probably look stupid. Today is just one of those days where you get everything mixed up.

When your Tune sesh starts back up im gonna send you my logs and ask you a few really weird questions that have been happening... Id prefer to spare myself from looking stupid in front of everyone again
Reply
Old May 3, 2011 | 05:44 PM
  #184  
MazdaManiac's Avatar
Banned
iTrader: (3)
 
Joined: Oct 2003
Posts: 16,386
Likes: 27
From: Under my car
We'll be back on line in 15 minutes.
Reply
Old May 3, 2011 | 05:53 PM
  #185  
maskedferret's Avatar
Oooh, shiny!
iTrader: (1)
 
Joined: Oct 2006
Posts: 908
Likes: 2
From: St. Louis, MO
On a slight tangent; is the AP dyno functionality anything to write home about? I can't imagine it's all that accurate, but maybe there's something useful in observed plotting of the data points? Looks like it might be something a bit more substantial than the butt-dyno.

Last edited by maskedferret; May 3, 2011 at 06:09 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
fourwhls
RX-8's For Sale/Wanted
7
Feb 20, 2019 05:16 PM
Sheldon24
RX-8 Parts For Sale/Wanted
0
Sep 19, 2015 02:37 PM
RenzoRx-8
RX-8 Parts For Sale/Wanted
3
Sep 9, 2015 02:38 PM
BigBadChris
RX-8 Parts For Sale/Wanted
1
Sep 7, 2015 01:49 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 05:37 PM.