Warming up

[FLAT 6]

Someone remind me again about the warming up temperatures and revs please!

I seem to remember max 2500 until 30 degrees, 3500 until 45 degrees and 4500 until 60 degrees after which you can add welly. About right??

[Zippee]

For my T350 I was told 2500 rpm till 40deg oil temp and then 3500 rpm until 70 deg oil.

[NTEL]

Well, I do 2500rpm until 60 deg C. About 7 miles. Almost 30,000 miles on a 2005 Tuscan to date so must be doing something right .

[Bob the Planner]

I am more like Zippee - 2000 to 30C, 2500 to 40C, 3000 to 50C, 4500 to 70C and above that as far as you want to go.

[Daston]

how do you guys keep the revs so low? Mine feels quite lumpy under 2500

[WorAl]

track v road told me below 3000 - 30 degrees, below 4000 - 40 degrees, below 5000 - 50 degrees etc etc etc

[jeast]

I was just told to keep the revs below 3,000 until 60 degrees.

[WhyTwo]

Looks like we have some conflicting advice about this. Anyone have anything 'official'?

I was told to keep it to 2500 up to 45 degrees and then 4000 up to 65 degrees after that it's party time

[da_murphster]

There is no 'right' answer!

TVR Power told me not to worry too much and just don't rag it cold (as you shouldn't any car)

I personally keep the revs below 2000 until about 40 degrees, then just gradually use a few more.

After 50 degrees it seems happy.

I like the 'match temp with max revs' idea as rule of thumb.

I thought the most important thing was to get oil round the engine when its dry/cold - not to worry so much about the difference between 50 and 60 degrees?

[m3coupe]

I'm something similar:-

2000rpm till 40 degrees
2500rpm till 50 degrees
3000rpm till 60 degrees

then anything over that is fair game.

[TVR_owner]

With a few exceptions, most seem to have forgotten the fact that you should not labour a cold engine either (probably just as bad or worse than ragging it form cold).

Anyone running at 2000 rpm max, is doing just that.

2500 rpm till 40 deg C is what TVR recommended and that manages to ensure revs stay above silly low revs underload.

Avoid at all cost running the engine underload below 1500 rpm (other than driving through it in first gear...)

[andyoleary]

TVR_owner said:

With a few exceptions, most seem to have forgotten the fact that you should not labour a cold engine either (probably just as bad or worse than ragging it form cold).

Anyone running at 2000 rpm max, is doing just that.

2500 rpm till 40 deg C is what TVR recommended and that manages to ensure revs stay above silly low revs underload.

Avoid at all cost running the engine underload below 1500 rpm (other than driving through it in first gear...)

Completely agree, I was thinking the same about the <2K running - too much loading at low rev's is just as bad as too high rev's when cold. I tend to keep the gear changes so that the rev's are between 2K and 2.5K until up around 50C and then open up to 3K until 60C (when static). I try to avoid heavy loading/acceleration until I'm up to 60C too.

Andy

[rykev]

TVRs recommendation in the MKII handbook is as follows

Mechanical sympathy from cold
Avoid more than 3000 rpm until the oil temperature has exceeded 40 degrees,4000 rpm until 60 degrees and 7000 rpm until 80 degrees.

Hope that helps

Kev

[rykev]

TVRs recommendation in the MKII handbook is as follows

Mechanical sympathy from cold
Avoid more than 3000 rpm until the oil temperature has exceeded 40 degrees,4000 rpm until 60 degrees and 7000 rpm until 80 degrees.

Hope that helps

Kev

[s6boy]

rykev said:

TVRs recommendation in the MKII handbook is as follows:
Avoid more than 3000 rpm until the oil temperature has exceeded 40 degrees

Agreed

rykev said:

4000 rpm until 60 degrees

I use 50 degrees

rykev said:

and 7000 rpm until 80 degrees.

If I'd used that rule today I wouldn't have had such a good drive to your fair city this morning, never got over 65 degrees in 45 minutes.

Mechanical sympathy is the name of the game as already mentioned, and labouring the engine under load does as much harm as over revving from cold.

My personal rule of thumb is if you can keep up with the general flow of traffic while going through the gears until up to you're required temperature you'll be fine.

Don't labour it and don't ragg it 'til everything is turbine smooth!

In fact never labour the engine it's designed for revving not as a diesel

[FLAT 6]

It was just the issue of max temps that got me thinking about this. Mine's not been above 65 degrees since it started to get cold.

It takes about 10 miles just to get up to 40 degrees. Is there such a thing as a winter thermostat for a 4.0 Tuscan like they used in the old days???