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#91183 - 07/27/05 03:05 PM

benefit of higher idle speed?

seveland Offline

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Registered: 07/11/05
Posts: 31
Loc: PA

sorry if this is a dumb question. I'm looking to order a PCM from intense and one of the options it has for an additional $10 is to increase the idle speed by 100. What would that do for me?

#91184 - 07/27/05 03:32 PM

Re: benefit of higher idle speed?

UMfan

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Registered: 08/09/03
Posts: 3256
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I'm just guessing here, so someone will have to correct me:

I would think a higher idle speed gives you a speed advantage because you'd be launching in a higher RPM than normal.

The downside is that the higher idle speed would consume slightly more gas.

I would think the downside is negligible, but I don't know if the advantage is substantial.

#91185 - 07/27/05 04:34 PM

Re: benefit of higher idle speed?

HercMan(Rob) Offline

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Quote:

Originally posted by UMfan:

I would think a higher idle speed gives you a speed advantage because you'd be launching in a higher RPM than normal.

You shouldn't be at idle when getting ready. You should be around 2k rpm negating the increased idle speed.

I think it's more for those with a more aggresive cam grind and they need the rpm to keep enough vacuum for the power brakes.

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#91186 - 07/27/05 05:26 PM

Re: benefit of higher idle speed?

TastyBake Offline

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Registered: 07/29/04
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Quote:

Originally posted by HercMan:

Quote:

Originally posted by UMfan:
[b]
I would think a higher idle speed gives you a speed advantage because you'd be launching in a higher RPM than normal.

You shouldn't be at idle when getting ready. You should be around 2k rpm negating the increased idle speed.

I think it's more for those with a more aggresive cam grind and they need the rpm to keep enough vacuum for the power brakes. [/b]

Yup. Helps a little with winter starts too.

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#91187 - 07/29/05 09:47 PM

Re: benefit of higher idle speed?

KungFuFighter Offline

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Registered: 05/05/05
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Loc: Baltimore, Maryland

you can stay still on a bigger incline without using the brakes!!! yay! lol... I have no idea why someone would want this option, unless its what herc suggested.

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