Thread: About normal?

Originally Posted by knuts2au

One for the South Aussies. I was going from Adelaide to Victor Harbour, half way is a big long hill. Part way up i got boxed in behind a slower car and had to back off, after that all it would do was 80Kmh @ 4,250rpm, 18psi, peaked at 700C EGT. Just wouldn't go any faster or change up a gear. Stock standard with snorkel, is this as good as it should go? Quite happy otherwise in town and on the highway with it's performance, just seems to struggle on hills?

If the car is stock standard it might be,
but that is a pretty fair hill if it's the one I'm thinking of,
you probably could have pulled back into third and let it lock up if it's an auto, that helps quite a bit.

I am not from SA but with those numbers have you ever suspected a slipping torque converter.
If you have a similar hill in your area have a few runs up it trying different speeds and gears.

You could do a stall test but that might cause the converter to go legs up.
That’s my 2 bobs worth and I have been wrong before.

Originally Posted by knuts2au

One for the South Aussies. I was going from Adelaide to Victor Harbour, half way is a big long hill. Part way up i got boxed in behind a slower car and had to back off, after that all it would do was 80Kmh @ 4,250rpm, 18psi, peaked at 700C EGT. Just wouldn't go any faster or change up a gear. Stock standard with snorkel, is this as good as it should go? Quite happy otherwise in town and on the highway with it's performance, just seems to struggle on hills?

Even flatter here in WA, but I have climbed that and similar hills. Had it dropped or been dropped into 3rd and accelerated you might have done better, but yes in 4th that's about the performance I'd expect from a standard rig.
Cheers

At 4250 rpm I was assuming it had kicked down but I suppose 80 is still to high for KD.

That's well and truly kicked down, looks like 2nd at those revs?

There's a hill here that my Disco does the same if I get baulked, those revs/speed and that gear and that's it regardless of pulling it back to third to try to get it to lock out.

It's hard to know how to answer as I don't know the hill, BUT 4250 RPM in a TD5 is right on the limiter and indicates as Rock 130 suggests that you were in second. Your MAF etc is good if it would pull those revs . Have you cleaned your MAP sensor?

If you eased off it should change to 3rd then lock and be at about 2900RPM.( guess)

I have the opposite. Even when stock and towing my camper as I went up hills it would stay in lock 3rd until the speed has dropped to 50Kmh, then change to second and accelerate. then I would have to get over 70Kmh to lock again and so on. That was if I changed back to 3rd manually and then eased off over 70Kmh to let it lock.
The torque is all at 2000-3000RPM and that's where you should aim to be .

In my experience diesels will find it hard to accelerate once speed is lost on hills as acceleration equals HP and revs, which a petrol will do but a diesel will not. I get frustrated on a dual carriageway when some numpty passes someone on the start of a big hill at say 80 Kmh then dawdles in the Rh lane as I have no hope of getting back up to 110Kmh or whatever. The big hill Northbound just north of Buledelah is a prime example.
Regards Philip A