Torque App - BHP Accuracy

[ozzymyster]

I thought you had to divide it by .8 or times 1.25 (which gives exactly the same figure).

When you say set it up, you mean inputing engine size and the weight of the car?

I think the vehicle set up, weight etc is for the bhp function on the app. Dont believe this impacts the g/s reading. How do you set up the app so it gives the max g/s?

 

[NickCupraR]

dont want to be stupid but what is g/s??

 

[ozzymyster]

dont want to be stupid but what is g/s??

http://www.ross-tech.net/vag-com/advertising/DiagnosingA_MAF_TechTip.pdf

Brian

 

[nd-photo.nl]

How do you set up the app so it gives the max g/s?

There is no such setting. Just add the Mass Airflow sensor to the dashboard and drive it hard I use the half dial, so you can see the min/max settings.

I dont believe the vehicle profile interferes with the raw sensor readout. BHP & Torque do (says so in the app). I think its better to take the maf value and divide it by 0.8 for a raw estimate of your car's total BHP figure.

Even better to use vcds/vagcom and do a proper log (3rd gear, warm engine, 2000rpm-redline)

 

[ozzymyster]

There is no such setting. Just add the Mass Airflow sensor to the dashboard and drive it hard I use the half dial, so you can see the min/max settings.

I dont believe the vehicle profile interferes with the raw sensor readout. BHP & Torque do (says so in the app). I think its better to take the maf value and divide it by 0.8 for a raw estimate of your car's total BHP figure.

Even better to use vcds/vagcom and do a proper log (3rd gear, warm engine, 2000rpm-redline)

Display added should be an interesting drive to work in the morning

Cheers

 

[DdraigR]

Managed to sort it too.

Gutted though as I'm working away all week so not going to be able to test it until the weekend.

Sent from my HTC One X using Tapatalk 2

 

[ozzymyster]

219 bhp if I divide the maf by 0.8, standard 2005 lcr running on 95 octane

 

[nd-photo.nl]

Seems about right? Y U NO Octane 98 ?

 

[ozzymyster]

Seems about right? Y U NO Octane 98 ?

Don't really have 98 Ron in Ireland. Can't get it down south anyway.. No choice

 

[nd-photo.nl]

Thats a pitty, you might try to mix some bio ethanol in. Lots of people on a dutch forum mix about 5L bio ethanol on a full tank.

 

[8bit]

Torque app calculates BHP, the figure you get is the at-the-wheels figure, not at the crank. 180 at the wheels is probably not too far off for a 222bhp LCR (it's not 225bhp, it's 225PS, which is 222bhp)

 

[kevinking2020]

the bhp isn't that accurate. I got 171bhp and my maf readings say 157.5 which = 196BHP and i've had 165g/s before which is 206bhp.

 

[8bit]

the bhp isn't that accurate. I got 171bhp and my maf readings say 157.5 which = 196BHP and i've had 165g/s before which is 206bhp.

As I said, remember that the BHP figure in Torque is the at-the-wheels figure, not at the engine. Calculating your BHP based on airflow g/s gives an estimate of the at the engine figure which will be higher than the at-the-wheels figure.

Also you have a lot of gauges open in Torque there - this means the sample rate for each one is lower, with that many gauges it's probably only able to read each one maybe once a second. Try running a display with only airflow and HP on the screen, you'll see both update a lot quicker and they should give more accurate results.

The issue I have with torque is the boost gauge. On my LCR the MAP sensor (which is what Torque is set up to read boost from) can only read a maximum of 2550mbar, which equals 1.55bar of boost. Somehow Torque seems to display over 1.8bar when on WOT, so something is wrong with its' measurements there.