D5 (D5244T to 2005) How well does your d5 pull?

[cheshired5]

Originally Posted by Dalexus

max boost is the difference between high & low figures shown on torque vacuum gauge?

No.
The boost/vacuum gauge is a dummy gauge which makes a crude calculation and can also be setup in different ways.
If you want to accurately monitor your car, you need to understand what the gauges mean and where they source their data.
There is no boost/vacuum sensor on the car only a MAP sensor.

Unless you have specifically set up the boost/vacuum gauge using the settings, the manifold absolute pressure gauge is the only one you should be using to calculate boost.

[Christerart]

Originally Posted by cheshired5

I don't own Apple products and unfortunately whenever I've seen demos of Apple equivalents to Torque Pro, they leave a lot to be desired in my opinion.

I can't therefore put my name to recommending anything.

I'm always up for learning new stuff though so hopefully an Apple guru can prove me wrong and enlighten us with an amazing ios diagnostics app.....

How about you send a message to the developers of the Torque Pro app and tell them they have a market waiting if they rewrite or port it...

[cheshired5]

Originally Posted by Christerart

How about you send a message to the developers of the Torque Pro app and tell them they have a market waiting if they rewrite or port it...

To be honest, they're probably not missing a trick.
Maybe they have an issue with Apple's terms of business and it's just not worth their while..... I don't know.

The developer has over 5 million downloads for the free version on Android which generates ad revenue and over a million downloads @£3 ish for the paid version.
He may understandably feel he's doing ok without Apple.

[barrybritcher]

Originally Posted by Mikesmith181

Is there an alternative app for apple that you know of that you could suggest?

OBD Fusion

[Dalexus]

Originally Posted by cheshired5

No.
The boost/vacuum gauge is a dummy gauge which makes a crude calculation and can also be setup in different ways.
If you want to accurately monitor your car, you need to understand what the gauges mean and where they source their data.
There is no boost/vacuum sensor on the car only a MAP sensor.

Unless you have specifically set up the boost/vacuum gauge using the settings, the manifold absolute pressure gauge is the only one you should be using to calculate boost.

Ok.
I understand generally how everything operates, I'm just not used to reading diagnostics & am getting myself confused. When torque app first installs it has that gauge labeled as boost so that's been confusing me.
What ecu data is it reading for "boost/ vacuum "(or is it worth custom setting it as you say or better just ignoring meantime & watch the MAP)
Changed my fuel filter by the way & definitely a wee improvement.

[skyship007]

If you don't spend money changing the MAP or fiddling with a turbo, there is no real need for a boost gauge of any type.
In safe driving terms the less dials and mobi systems a driver has to fiddle with or look at whilst driving the safer the vehicle.

As regards non female pulling power, a small turbo does not do much until you reach about 2000 RPM plus, if you want a car that produces more pull then I would just buy a bigger engine in CC terms. Most diesels Volvo engines can spin the tyres well enough, so it might be worth thinking about better winter tyres if you have a torque issue. Fiddling with the MAP or turbo will just cost more in insurance terms, whereas as good set of major brand winter tyres could save you real money up North.

[cheshired5]

Originally Posted by Dalexus

What ecu data is it reading for "boost/ vacuum "(or is it worth custom setting it as you say or better just ignoring meantime & watch the MAP)

The default setting for the boost reading is that it uses MAP psi minus 14.7
For greater accuracy, you then adjust the calculation in the settings to account for the actual current atmospheric pressure.

[barrybritcher]

perhaps a remap would enhance your enjoyment?

[Dalexus]

Originally Posted by barrybritcher

perhaps a remap would enhance your enjoyment?

I'm not be necessarily knocking remaps but best to use the knowledge & experience available on forums such as this and aim to get your car running as it should & was originally supposed to.
I have a tuning box (made by rover Ron who knows his stuff with common rail diesels) that I used with my rover 75 and plan to have altered to fit my Volvo d5.... BUT I'm going to attempt to resolve any underlying issues with the engine first and then try it.
As skyship says the under 2000rpm zone is where there is less turbo assistance and hopefully the tuning box will make the car more pleasant to drive at lower rpm. I will eventually report back with results but on the tuning box thread perhaps rather than contributing to the further wandering of this thread

[cheshired5]

Originally Posted by Dalexus

under 2000rpm zone is where there is less turbo assistance

You have a VNT turbo designed to take advantage of even low rpm so your performance and response in standard form should be more than acceptable.
Like you say, get it running as it should be first as you may well find it suitable for your needs.