No Device: HD/Delphi EFI Tuning Basics
Road Warrior
Joined: Jun 2015
Posts: 1,325
Likes: 140
From: Edinburgh UK
Maybe an idea of what to look for or how things go wrong, this cross talk business for example??
Or where should the sensors be (generically), x distance from head? y distance from collector if 2-1 ...sort of stuff ??
EDIT: oops, our posts must have crossed in the ether
Or where should the sensors be (generically), x distance from head? y distance from collector if 2-1 ...sort of stuff ??
EDIT: oops, our posts must have crossed in the ether
Road Master
Joined: May 2012
Posts: 773
Likes: 124
From: Between purgatory and retirement
... The early non heated sensor has a response time of ~ 100 - 150 mS. New, they are faster and as they age they slow down some. The newer small (12mm) O2 sensor have a response time of ~ 10 - 12 mS. The Bosch LSU series sensors have a response time of ~ 220 - 250 mS...
Or was it that they no longer needed to be so close to heat up first?
Or something else?
Road Warrior
Joined: Jun 2015
Posts: 1,325
Likes: 140
From: Edinburgh UK
Bungs ...should they be straight or angled?
I was looking at mine and the pipe has an angled dent (for the want of a better description) to angle the sensors ...I might have thought that would have caused turbulence, rather than getting a better reading?
I was looking at mine and the pipe has an angled dent (for the want of a better description) to angle the sensors ...I might have thought that would have caused turbulence, rather than getting a better reading?
Road Warrior
Joined: Jun 2010
Posts: 1,368
Likes: 27
From: Australia
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Thread Starter
|
HD EFI Guru
Joined: Jan 2008
Posts: 4,492
Likes: 4,778
For me I would tell everyone, you need to take what ever tuning device you are going to use and record data from it on a 100% stock bike. That means NO parts change of any kind! That will give you something to base your decisions from. Trying to look at TTS data and compare that to something else, will give you something you cannot compare to another device.
The TTS product records data at higher data rates than any other product, so when you look at it you are seeing much more of what is really going on. While it still is not everything the ECM's see's and uses, it typically is double or more, than the rate of anything else currently on the market. An example would be 2012 Dyna collecting tuning data, SuperTuner records ~10 fps, Power Vision records ~ 12 fps. TTS records ~48 fps, so graphing things typically paints a different picture from others.
We internally use high speed records here to see everything the ECM does, to help us in developing things and those really look different! On the same example bike we are looking at data rates of 220 fps, which is as fast as we can get it from the ECM and about 2 times above any ECM internal updating in the ECM.
If you all would like I can find some Bosch O2 specification to post.
The TTS product records data at higher data rates than any other product, so when you look at it you are seeing much more of what is really going on. While it still is not everything the ECM's see's and uses, it typically is double or more, than the rate of anything else currently on the market. An example would be 2012 Dyna collecting tuning data, SuperTuner records ~10 fps, Power Vision records ~ 12 fps. TTS records ~48 fps, so graphing things typically paints a different picture from others.
We internally use high speed records here to see everything the ECM does, to help us in developing things and those really look different! On the same example bike we are looking at data rates of 220 fps, which is as fast as we can get it from the ECM and about 2 times above any ECM internal updating in the ECM.
If you all would like I can find some Bosch O2 specification to post.