I didnt see any significant temp drop when i removed the cat, just a small amount but there was a marked difference when i fitted the XIED's.
You must remember for an accurate reading of any of this, it would have to be done with the same air temp on the same day and having covered the same distance from cold to be completely accurate. And that is virtually impossible to do over here, our air temps fluctuate that much from day to day.
But in answer to your question, yes the XIED's made a difference to head temps as far as my testing went and the bike runs noticeably better with them fitted.
Funny really i just read a post by Whittlewhatsit on the other forum and he aint even got his own bike running smoothly after all the ins and outs on the XIED thread. Here is a link, scroll down..
http://xlforum.net/vbportal/forums/showthread.php?p=1702870#post1702870
Quote
"Now I am going to start playing with the AFR mostly to get rid of the engine hunting at any time the motor is in the 2500-3500 RPM range. ."End Quote
This EFI stuff is way beyond all the time and efort i have seen some folks go to to try and get it right.
All i want for now is to richen the mixture up a bit on the XR until i can decide which way to go with a tuning unit.
There is a guy who shall remain nameless until he has given me the info i am waiting for, and the permission to say who he is, who has a buddy who is extremely clued up with this stuff, and is in the process of sorting this XR EFI stuff out, it is not something i am very settled with as yet, as this is the first EFI HD i've owned.
I have done a lot of reading on different forums on the EFI on HD's and no one seems to agree with anyone else, so until its all sorted out I'm pleading the fifth as you say.
There is even a possibility that at sometime in the future i might just stick a carb on the XR if i can find a set of performance heads that will give me what i want, and in doing so i will be getting rid of the oil cooler.
You must remember for an accurate reading of any of this, it would have to be done with the same air temp on the same day and having covered the same distance from cold to be completely accurate. And that is virtually impossible to do over here, our air temps fluctuate that much from day to day.
But in answer to your question, yes the XIED's made a difference to head temps as far as my testing went and the bike runs noticeably better with them fitted.
Funny really i just read a post by Whittlewhatsit on the other forum and he aint even got his own bike running smoothly after all the ins and outs on the XIED thread. Here is a link, scroll down..
http://xlforum.net/vbportal/forums/showthread.php?p=1702870#post1702870
Quote
"Now I am going to start playing with the AFR mostly to get rid of the engine hunting at any time the motor is in the 2500-3500 RPM range. ."End Quote
This EFI stuff is way beyond all the time and efort i have seen some folks go to to try and get it right.
All i want for now is to richen the mixture up a bit on the XR until i can decide which way to go with a tuning unit.
There is a guy who shall remain nameless until he has given me the info i am waiting for, and the permission to say who he is, who has a buddy who is extremely clued up with this stuff, and is in the process of sorting this XR EFI stuff out, it is not something i am very settled with as yet, as this is the first EFI HD i've owned.
I have done a lot of reading on different forums on the EFI on HD's and no one seems to agree with anyone else, so until its all sorted out I'm pleading the fifth as you say.
There is even a possibility that at sometime in the future i might just stick a carb on the XR if i can find a set of performance heads that will give me what i want, and in doing so i will be getting rid of the oil cooler.