How long do you warm it up?

[sky1jord]

My 88's owner's manual says "Do not let the engine idle to warm it up."
I obey this, then wait until at least 140F before going over 4500 RPM. The tranny doesn't like to work smoothly much before this anyway.

[porwolf]

Originally Posted by tuchan

Interesting thread. I have always warmed up my cars, even the new ones of today I warm up. The old SC I do also, let it run for maybe 5 minutes at idle before I go anywhere in all seasons. I probably do this from my Mini days when the thing really did not enjoy running whilst cold.

I can't see letting a engine warm up at idle doing any damage, if anything I would have thought it would be a good idea? Maybe I am mistaken.

If you do your warm-up routine I would think you still have to to be gentle on the engine and transmission before all parts are operating at working temperatures. That still takes time so you are not helping top get the whole drive train including tires into optimal working ranges.

[Ronnie's.930]

Originally Posted by KerryM

I wait just long enough for my oil pressure to move out of the red; usually about a minute or two.

If it takes a minute or two for your oil pressure to come up to acceptable levels, then your sending unit, gauge, or engine is seriously ****ed up!

[SilberUrS6]

Originally Posted by Ronnie's.930

If it takes a minute or two for your oil pressure to come up to acceptable levels, then your sending unit, gauge, or engine is seriously ****ed up!

I was wondering that myself. The needle on my gauge comes up immediately after the engine lights off.

[Ronnie's.930]

Originally Posted by SilberUrS6

I was wondering that myself. The needle on my gauge comes up immediately after the engine lights off.

Maybe the guy meant some other indicator, but I can't imagine which one.

And same here - instant full oil pressure.

[GH85Carrera]

Originally Posted by tuchan

Interesting thread. I have always warmed up my cars, even the new ones of today I warm up. The old SC I do also, let it run for maybe 5 minutes at idle before I go anywhere in all seasons. I probably do this from my Mini days when the thing really did not enjoy running whilst cold.

I can't see letting a engine warm up at idle doing any damage, if anything I would have thought it would be a good idea? Maybe I am mistaken.

With an old carburetor car a warm up can be necessary. You are not likely doing any real harm to your car, but you are just wasting time, gasoline and making unneeded pollution. 5 minutes for every trip in a decade is hundreds of gallons of wasted gas and money.

Any modern car simply does not need a warm up. And a fuel injected 911 does not either. Get in and go with moderation of engine speed.

[Jfporco]

I start up my '75 carb 911, reverse out of the garage, let it idle in the driveway for about a minute, then keep revs under 4000 until I hit the main roads a few minutes later.

No problems yet....

[boxster03]

depends on outside temp

[Rodek]

This morning, I started the car and only waited about 30 seconds before backing her out of the garage. I then kept the revs low until the temperature warmed up while driving. This is in contrast to what I was doing before......letting her idle in the garage for several minutes before driving.

[SC Eddie]

As long as it takes to open gate and pull onto street, then a easy drive to freeway onramp.

[Rodek]

Does winter driving have any impact on your warm up routine?

[DRACO A5OG]

No sir, just drive off, remember where the car was made :-)

You may consider a thinner weight oil for the winter but besides that drive off and keep it below 4500RPMs for at least 5 minutes. Then smile

[ASD]

so the consensus is drive moderately right away and let her warm before getting on it.
As far as winter driving goes, my 911 runs like a scalded dog in cold weather. Feels like it has a power booster. ... its the cold air effect. I love a cold morning drive when the temp is under 40.

[porwolf]

Originally Posted by ASD

so the consensus is drive moderately right away and let her warm before getting on it.
As far as winter driving goes, my 911 runs like a scalded dog in cold weather. Feels like it has a power booster. ... its the cold air effect. I love a cold morning drive when the temp is under 40.

Cold air is denser, has more oxygen. That could be the difference.

[gtrp]

My wur must be finished then.

My car will idle between 100-900 Rpms for 15 minutes.
If I try to drive it before that, it'll stall at every light before it's completely warmed up and idling perfect at 950


81' 911sc widebody

[GH85Carrera]

Originally Posted by gtrp

My wur must be finished then.

My car will idle between 100-900 Rpms for 15 minutes.
If I try to drive it before that, it'll stall at every light before it's completely warmed up and idling perfect at 950


81' 911sc widebody

Your car is just not running the way it should . Fix it or get it fixed. It is a LOT MORE FUN to have a car that runs the way the factory designed it (or better) but a car that dies is something you will learn to shy away from because it is tedious to drive.

Get it fixed and drive that 911!

[gtrp]

I'm trying!
I have fixed the vacuum leaks, adjusted the idle/mixture, and a few other suggestions. Everything seems to be helping a lot. It's such an improvement, I'm getting close! It's running like a dream today after my warm up phase is over.


81' 911sc widebody