- Joined
- Apr 29, 2017
- Messages
- 1,249
- Reaction score
- 7
Guys,
Just doing the big service on the 2020 Gen 4 and was amazed at the IAT positioning combined with the flapper valves in the inlet. I had a nightmare this year in the Mountains when the temperatures got high or on our hot days. The bike was so, so fluffy below 6000rpm. My mate was on a 2022 S1000R and we were on average reading 20C difference between the 2 bikes over the trip. So they've obviously moved the IAT on the 2022 'R'
Now I know why! BMW block off 90% of the inlet below 6000RPM when the flappers open. All in the name of reducing engine noise! See Pic!
They'll be going in the bin and I'll move the IAT behind the Dash.
J
Just doing the big service on the 2020 Gen 4 and was amazed at the IAT positioning combined with the flapper valves in the inlet. I had a nightmare this year in the Mountains when the temperatures got high or on our hot days. The bike was so, so fluffy below 6000rpm. My mate was on a 2022 S1000R and we were on average reading 20C difference between the 2 bikes over the trip. So they've obviously moved the IAT on the 2022 'R'
Now I know why! BMW block off 90% of the inlet below 6000RPM when the flappers open. All in the name of reducing engine noise! See Pic!
They'll be going in the bin and I'll move the IAT behind the Dash.
J