Idle Rpm

[Uditha88]

Hi all,

What is the best Idle RPM value for a car.

If it depends on some factors, let me assume( i don't really know) & specify few if u really want when answering

1. Mid size sedan

2. Automatic Trans.

3. Has got AC

4. Patrol

5. 1 500 cc

Edited May 18, 2010 by Uditha88

[Sumiya]

Hi all,

What is the best Idle RPM value for a car.

If it depends on some factors, let me assume( i don't really know) & specify few if u really want when answering

1. Mid size sedan

2. Automatic Trans.

3. Has got AC

4. Patrol

5. 1 500 cc

Hi Uditha88

All that depends on the engine it has got(it is there on the Service or Repair manual of the particular car)

i think there is nothing to do with AC,

as i guess Diesel and Auto Trans are running bit higher rpm compared to the Petrol and manual ones, don't know exactly i don't use auto trans at the moment.

The Lowest i use is I have tuned my B210 to run on 650-700 RPM,but it is very difficult to handle it as long as you handle the clutch properly.but you get impressive fuel consumption on low idle depending on better handling of the clutch.

Thanks

Regards

sumith

Thanks

Regards

sumith

[harshansenadhir]

Hi all,

What is the best Idle RPM value for a car.

If it depends on some factors, let me assume( i don't really know) & specify few if u really want when answering

1. Mid size sedan

2. Automatic Trans.

3. Has got AC

4. Patrol

5. 1 500 cc

it all depends on the vehicle, make, engine type, what technology manufacturer used all that. It's marked on the RPM meter on some of models but again it's a question whether you can set the engine speed at ideal/best. Specially on carbeurator engines it's a nightmare to set at best and often is a hassle when set at lowest because engine tends to die suddenly in cold running. Also if the engine mounts are weak, you cannot set at best lowest RPM due to excessive shrudder. All in all this is something very hard to generalize and have to sort out case basis.