Im playing around with my vagcom and seeing if i can get some accurate bhp and torque graphs.

Not sure how to do the bhp atm as im sure it involves some clever maths.

So far, ive made the torque graphs.

My standard vrs is putting out a maximum of 318 (nm of torque) at 2.7k RPM.

Does this sound correct?

Havent had a chance to do a decent run but was just a quick foot to the floor at 2k ish revs.

Thanks.

Craig.

HP is actually a simple calculation of torque so nice and easy.

(Torque (ft.lb) x Engine speed) / 5,252 = Horsepower

Edited 15 December, 201015 yr by Jabbasport

I make that out to around 122hp @ 2700rpm..

Edited 15 December, 201015 yr by Jabbasport

I make that out to around 122hp @ 2700rpm..

Thanks

The 5252 the max rpm of a vrs?

If doing for another car, i find the max rpm of that and divide the sum by it?

Edited 15 December, 201015 yr by Craig Lovelock

After racking my brains back a few years to ICT in college haha, this is the result:

Seems a bit optimistic! The max bhp is actually classed at 142. But think i smooted the lines out too much so it looks more like 150

Dont know how to get the z axis is it? the right side one?

Need to get it to measure torque on same graph

Edited 15 December, 201015 yr by Craig Lovelock

Thanks

The 5252 the max rpm of a vrs?

If doing for another car, i find the max rpm of that and divide the sum by it?

Nothing to do with RPM of the car, just a basic constant in the equation, some basic explanationhere:

http://www.car-videos.net/articles/horsepower_torque.asp

What channel are you datalogging for torque output then?

I may try this at lunch time

Kev

Edited 16 December, 201015 yr by Jabbasport

Jesus, just did this on mine and it came out at 236bhp.

Bearing in mind it's still running on a generic map with the hybrid fitted lol

Kev

erm channel 20.

Measures rpm and torque in nm.

As far i read however, this vagcom method only works well with standard cars.

Theres loads of information though. Some are saying block 120, others 02...

Edited 16 December, 201015 yr by Craig Lovelock

Yeah, my torque output flatlines just over 300ftlb so that must be as high as the sensor reads..

Should really just get it on the rolllers and mapped

Kev

Yeah, my torque output flatlines just over 300ftlb so that must be as high as the sensor reads..

Should really just get it on the rolllers and mapped

Kev

Hmm. What was your highest reading? i think i got 318nm in the torque...

Ill have another go later and see what i can find out

Did you use channel 5, then work out the torque in lb.ft and then the bhp from that?

I think i used channel 20, highest nm was 410, at which point it sits flat so must be sensor max?

Kev

I think i used channel 20, highest nm was 410, at which point it sits flat so must be sensor max?

Kev

ah right. Who knows haha. What's was it tested on? The red vrs in your sig running 180bhp?

Yeah, my vRS but it's got a hybrid turbo on it now, just not mapped for it yet.

So effectively a generic map, but hybrid turbo..

I'll do some digging on the net into it.

Kev

kev i cant believe of all people to still not to have had there own car on the rollers to be mapped !!!! lol

stay late put it on rollers and map it job done lol

they always say when working in the trade its your own car that gets left out lol