What RPM does your car idle at?

[Jmanlevan]

I just noticed that after installing an aftermarket intake, downpipe and exhaust, my car now idles 250-500 rpm's lower than when it was stock. Stock it idled at between 1,000 and 1,250 rpm. Now it idles at around 500-750 rpm. I've never had performance modifications installed on any of my vehicles before...is this normal? I'm assuming it has to do with a change in the air & fuel ratio/something to do with the new intake?

Just for info, I have a 2023 3.0 MT and am at roughly 5,300 ft. elevation on a 60 degree day.

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[Upthetren]

You are mistaking cat warm up vs idle.

 

[ColonelAdama]

Idles at ~650 for me without AC on after cold start. 23 MT

 

[Jmanlevan]

You are mistaking cat warm up vs idle.

This was after the car had been running for almost 10 mins though.

 

[razorlab]

Target engine speed at normal operating temperature is 660 rpm.

You probably were not at operating temp before.

 

[Jmanlevan]

Target engine speed at normal operating temperature is 660 rpm.

You probably were not at operating temp before.

That's a cool table! So if im reading this correctly, on the x axis, is coolant temp in celsius with 40-90 deg C being optimal and y axis is oil temp in celsius with 30-90 deg C being optimal?

 

[razorlab]

That's a cool table! So if im reading this correctly, on the x axis, is coolant temp in celsius with 40-90 deg C being optimal and y axis is oil temp in celsius with 30-90 deg C being optimal?

Normal operating temp above 60f ambient at idle for coolant is 203f (95c) and oil is 221f (105c)

 

[Jmanlevan]

Normal operating temp above 60f ambient at idle for coolant is 203f (95c) and oil is 221f (105c)

Gotcha. Thanks for sharing that!

 

[type-964]

Facts: Idle speed is completely dependent on the weight of oil you’re using, and whether or not you properly followed the engine break-in procedure.

 

[Jmanlevan]

Facts: Idle speed is completely dependent on the weight of oil you’re using, and whether or not you properly followed the engine break-in procedure.

Don't you know you're not supposed to mention oil on this forum or break in period

I actually did follow the 1,200 mile break in though and did an oil change at 1,600 miles and am using the factory recommended weight that is in the manual

 

[type-964]

Don't you know you're not supposed to mention oil on this forum or break in period

I actually did follow the 1,200 mile break in though and did an oil change at 1,600 miles and am using the factory recommended weight that is in the manual

I know. I can’t resist trolling lately. Once the weather warms up and I can get back to autox and HPDE I’ll stop menacing this community.

 

[Supra_UK_]

Mine's around 700-800 rpm, 3.0 MT (it's the garbage uk spec b58 340ps).

 

[Awales74]

I don't know about you guys, mine idles in my garage, red lights, and Whataburger drive thrus. I don't roll with that auto start/stop crap

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