Author Topic: Elevation and idle speed  (Read 315 times)

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Offline Ironwood

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Elevation and idle speed
« on: October 17, 2017, 12:52:36 am »
Just relocated from 4800' elevation to 700'.  Went for a short ride today (my first since being here) and noticed my idle speed, which was 1100-1200 rpm is now 1300-1400 rpm.  Runs great - just wondering if elevation plays into this?

Also, maybe just adjust it back down?

Thanks!
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Offline Steve in Sunny Fla

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Re: Elevation and idle speed
« Reply #1 on: October 17, 2017, 02:18:52 am »
Just relocated from 4800' elevation to 700'.  Went for a short ride today (my first since being here) and noticed my idle speed, which was 1100-1200 rpm is now 1300-1400 rpm.  Runs great - just wondering if elevation plays into this?

Also, maybe just adjust it back down?

Thanks!

It's making more power at the lower elevation, I would estimate about 15%. Steve
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Offline connie_rider

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Re: Elevation and idle speed
« Reply #2 on: October 17, 2017, 03:37:52 pm »
Yupp, the additional power should put a smile on your face.

If you have the 2 min set up. Might be worth experimenting with increasing the foam thickness to optimize things.

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Offline Ironwood

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Re: Elevation and idle speed
« Reply #3 on: October 17, 2017, 10:32:15 pm »
That IS good news! No need to adjust the idle back down?
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Offline DC Concours

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Re: Elevation and idle speed
« Reply #4 on: October 18, 2017, 12:29:43 am »
Idle should always be at 1000-1100.


Offline JimBob

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Re: Elevation and idle speed
« Reply #5 on: October 19, 2017, 03:29:40 pm »
Yupp, the additional power should put a smile on your face.

If you have the 2 min set up. Might be worth experimenting with increasing the foam thickness to optimize things.

Ride safe, Ted


Wouldn't you *remove* foam to increase airflow (reduce velocity) since the charge is now more dense?


SiSF?

Offline JimBob

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Re: Elevation and idle speed
« Reply #6 on: October 19, 2017, 03:30:32 pm »
Idle should always be at 1000-1100.


I find that too low for me (at altitude, WITHOUT SiSF magic).