Joined
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172 Posts
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Here's a specific question for our member from the UK - Scotty/Midas...
Scotty, the "XR Reference Pics" thread got me to thinking about something...
Back over on the XLForum during the "XIED's on a Stock XR1200" thread you had mentioned a very significant drop in cylinder head temperature once you installed the XIED's, but I know you also removed the catalytic converter from your exhaust system when you also fabbed up your Supertrapp mufflers. On other various bikes I have owned the past few years - like my BMW R1150R, Aprilia Tuono, and Ducati Hypermotard - when I got rid of the catalytic converter the result was BIG drop in engine temperature... Even before any means of enrichening the mixture to match the pipe installation. Needless to say, each time I later enrichened the mixture to better tune for the pipes the temps dropped some more, but the biggest drop in those cases seemed to be from getting rid of the plug in the exhaust that was the catalytic converter.
Did you ever measure your differences in head temperature separately between removing the cat and installing the XIED's?
If so, what was the temp drop removing the cat, and what was the temp drop installing the XIED's?
Thanks!
Dallara
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Here's a specific question for our member from the UK - Scotty/Midas...
Scotty, the "XR Reference Pics" thread got me to thinking about something...
Back over on the XLForum during the "XIED's on a Stock XR1200" thread you had mentioned a very significant drop in cylinder head temperature once you installed the XIED's, but I know you also removed the catalytic converter from your exhaust system when you also fabbed up your Supertrapp mufflers. On other various bikes I have owned the past few years - like my BMW R1150R, Aprilia Tuono, and Ducati Hypermotard - when I got rid of the catalytic converter the result was BIG drop in engine temperature... Even before any means of enrichening the mixture to match the pipe installation. Needless to say, each time I later enrichened the mixture to better tune for the pipes the temps dropped some more, but the biggest drop in those cases seemed to be from getting rid of the plug in the exhaust that was the catalytic converter.
Did you ever measure your differences in head temperature separately between removing the cat and installing the XIED's?
If so, what was the temp drop removing the cat, and what was the temp drop installing the XIED's?
Thanks!
Dallara
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