MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: irish_ram on May 13, 2015, 08:20:48 pm

Title: Measuring BHP and Torque
Post by: irish_ram on May 13, 2015, 08:20:48 pm
Hi Chaps,

Not sure if I have dont this right but wanted to check with some experts. I have tried to measure my BHP and Torque.

What I did was into Engine 01, the Meas Block 08, then in the 3 boxes on the left entered 001, 115 and 120. I then hit Log.

Put my DSG in Manual and 3rd then drove at about 20 to the start of the run, I then hit Start and went full throttle for around 10 seconds and saved the results. Is this correct or am I totally wrong. Have attached my graph and the workings out from the ROSS Tech spread sheet. Am i supposed to just take the highest values in the BHP and Torque column and take that as my readings or average it all out. And that is if it is correct.

I have a MK5 ED30 by the way if that helps and I have done no performance enhancements on it at all but not sure if any done previously but all standard exhaust, intake from what I can see.

Thanks in advance

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fpp78%2FSuper_Ram%2FBHP_and_Torque.png&hash=d38ea8fc11a770e553409cb74b87fb48a9908219)
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 13, 2015, 08:34:28 pm
Graph output if helps

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fpp78%2FSuper_Ram%2FGraph.png&hash=931e4705a466b8efc99ac0af027cb44a11badcd2)
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 13, 2015, 09:03:12 pm
Anyone any advice on this as looking at the figures mine come back as:

BHP: 269bhp @ 5320 RPM
Torque: 271 @ 3520 RPM

My understanding is the Stock Ed30 is:

BHP: 227bhp @ 5200 RPM
Torque: 221 @ 2200 RPM
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 13, 2015, 10:07:07 pm
Does this need moving to the VCDS section Mods rather than the general section, cheers
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 13, 2015, 10:39:18 pm
Bit of help here chaps, I would love to believe my car is running at near 270bhp but more than likely I have made a mistake somewhere
Title: Re: Measuring BHP and Torque
Post by: Paulo P on May 14, 2015, 12:37:03 am
Hi mate,

I'm new here but I have been told that Mark 5 gti's don't make the the power the factory state they actually make more and I was told that an ED30 typically makes about 260bhp  so yours doesn't sound a million miles away from that.

I can't be more help though because as I say I'm new.

Paul
Title: Re: Measuring BHP and Torque
Post by: bigmig95 on May 14, 2015, 08:19:27 am
You're not far out and the hp calc' is right utilising lb/ft, (Torque x Speed) / 5252 .  If you leave the torque as Nm it will give a KW output instead.  Only issue I can see is of accuracy as the car calculates torque indirectly off various parameters such as air flow and fuelling and not a direct torque output that an engine dyno would.  It won't be to far out though.  :happy2:
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 14, 2015, 12:27:05 pm
Nice one but that means my car may have had a remap or something but cannot see any mods
Title: Re: Measuring BHP and Torque
Post by: cooljimy84 on May 14, 2015, 12:33:47 pm
Requested boost and boost should show up a remap....
Title: Re: Measuring BHP and Torque
Post by: rich83 on May 14, 2015, 12:35:32 pm
They usually make the stated power on a dyno.... 195-205BHP  for the GTI and 225-235BHP for the ED30.

Yours may well already have a map on it, but remember the method you are using is only a guide
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 14, 2015, 01:12:50 pm
Requested boost and boost should show up a remap....

Is this something I could check on vcds
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 14, 2015, 01:15:24 pm
They usually make the stated power on a dyno.... 195-205BHP  for the GTI and 225-235BHP for the ED30.

Yours may well already have a map on it, but remember the method you are using is only a guide

True and may do a couple of more runs to see the difference however if I had of got say higher than standard but under say 250bhp I would have presumed it was a rough guide and out but to be at nearly 270 seems a big margin
Title: Re: Measuring BHP and Torque
Post by: Shoduchi on May 14, 2015, 03:54:51 pm
Those values are optimistic. You can see them live using a Polar FIS module. My GT Sport showed +190HP one time, when in a dyno it measured 171HP. Just a rough guide, I'd say. :wink:
Title: Re: Measuring BHP and Torque
Post by: cooljimy84 on May 14, 2015, 04:55:22 pm
Requested boost and boost should show up a remap....

Is this something I could check on vcds

Yes, 115-3 requested
115-4 actual
(as in block 115 option 3 and 4)
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 14, 2015, 07:48:48 pm
Requested boost and boost should show up a remap....

Is this something I could check on vcds

Yes, 115-3 requested
115-4 actual
(as in block 115 option 3 and 4)

Nice one, my results are below if that sheds any light

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fpp78%2FSuper_Ram%2FBoost.png&hash=4f198c0a4bb0994702436629c8112a97493bdaa0)
Title: Re: Measuring BHP and Torque
Post by: Shorty on May 14, 2015, 08:01:39 pm
Going off them boost figures I'd say it's been remapped.
Title: Re: Measuring BHP and Torque
Post by: Shoduchi on May 14, 2015, 08:13:44 pm
I agree, a lot more boost than stock. :wink:
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 14, 2015, 08:19:47 pm
Sounds good :), a free remap.

But not too savvy on remaps so would my figures suggest a Stage 1 remap and are there not certain parts recommended to be upgraded if getting a remap. If I am producing nearly 270bhp is this what you would expect for a remap
Title: Re: Measuring BHP and Torque
Post by: beetie on May 14, 2015, 08:23:13 pm
Sounds good :), a free remap.

But not too savvy on remaps so would my figures suggest a Stage 1 remap and are there not certain parts recommended to be upgraded if getting a remap. If I am producing nearly 270bhp is this what you would expect for a remap
Could be upto 300 bhp on just a map.
Title: Re: Measuring BHP and Torque
Post by: Shoduchi on May 14, 2015, 08:25:26 pm
A stage 1 Eddie should produce around 280-290 BHP, or a bit more, I think.
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 14, 2015, 08:28:20 pm
Maybe need to get it on a dyno to get official figures.

Would it be recommeded to look at getting better intake etc
Title: Re: Measuring BHP and Torque
Post by: Shoduchi on May 14, 2015, 10:11:31 pm
I'll do mine at Stage 2+ without a CAI 1st. Just an ITG panel filter but with all the rest fitted to see what's the output. In my country it's not easy to legalize a CAI and the rest is easier to pass unnoticed. :laugh:
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 15, 2015, 06:50:49 am
So from a couple of people saying a remap may have taken me nearer 300bhp and I know it is not accurate but I am going to do another couple of runs this weekend to see the results.

My car when initially did it was from a cold start and the engine was not wrmed up. What are the optimal conditions to get my car in to get as accurate a run as possible.

I know in the end the figures are just rough guides and will need to get it on a dyno to get accurate results. Does anyone know anywhere in Derby/Newark/Notts area to take it for a dyno run
Title: Re: Measuring BHP and Torque
Post by: Dan_FR on May 15, 2015, 07:22:04 am
The car needs to be fully up to temperature. Needle firmly on the 90 for at least a few minutes. It will only ever be an estimate based on what the ECU 'THINKS' is happening. Doesn't account for hardware issues correctly, so take anything you get numbers wise with a huge pinch of salt.

Personally i would be more worried about logging boost, fuelling, timing etc. to see if the remap is safe and half decent, rather than worrying about estimated numbers
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 15, 2015, 12:49:18 pm
The car needs to be fully up to temperature. Needle firmly on the 90 for at least a few minutes. It will only ever be an estimate based on what the ECU 'THINKS' is happening. Doesn't account for hardware issues correctly, so take anything you get numbers wise with a huge pinch of salt.

Personally i would be more worried about logging boost, fuelling, timing etc. to see if the remap is safe and half decent, rather than worrying about estimated numbers

Maybe a good shout, I have the boosts results above but can I check all the rest myself and if so how
Title: Re: Measuring BHP and Torque
Post by: beetie on May 15, 2015, 01:09:27 pm
Goapr website has a good logging page with all the channels/groups to log for different tests
Title: Re: Measuring BHP and Torque
Post by: cooljimy84 on May 15, 2015, 03:26:43 pm
Goapr website has a good logging page with all the channels/groups to log for different tests

http://www.goapr.com/support/datalogging.php
Title: Re: Measuring BHP and Torque
Post by: jacobrownoly on May 16, 2015, 01:02:28 pm
I have heard that vagcom block 120 for bhp is inaccurate for mapped cars, is this not true??

With My stage 2 gti (should be 250bhp) the vagcom worked out at 190bhp.  :stupid:
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 17, 2015, 09:49:59 am
I have heard that vagcom block 120 for bhp is inaccurate for mapped cars, is this not true??

With My stage 2 gti (should be 250bhp) the vagcom worked out at 190bhp.  :stupid:

From what people are saying on here you may need to take it with a pinch of salt but I would imagine if you get the conditions near bang on it must give you a rough idea. I mean I would presume it could state under your actual power as being innacurate but with mine to state 40bhp over my stock I would imagine must mean it had been remapped.

Although initally good news for me as got a remap for free potentially I need to now find out if the remap is safe and also if it is producing nearer 300bhp which is my understanding what a stage 1 with no other perf mods should make
Title: Re: Measuring BHP and Torque
Post by: jacobrownoly on May 17, 2015, 10:14:30 am
I have heard that vagcom block 120 for bhp is inaccurate for mapped cars, is this not true??

With My stage 2 gti (should be 250bhp) the vagcom worked out at 190bhp.  :stupid:

From what people are saying on here you may need to take it with a pinch of salt but I would imagine if you get the conditions near bang on it must give you a rough idea. I mean I would presume it could state under your actual power as being innacurate but with mine to state 40bhp over my stock I would imagine must mean it had been remapped.

Although initally good news for me as got a remap for free potentially I need to now find out if the remap is safe and also if it is producing nearer 300bhp which is my understanding what a stage 1 with no other perf mods should make

Best to get it dyno'ed i say, i have also heard if you log mass air intake (block 002 i think) then devide the highest number by 0.8 that is a more accurate bhp measurement.

Hope this helps
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 18, 2015, 12:54:51 pm
Just a thought also chaps. Although there are no obvious mods such as CAI or Miltek exhaust etc I was wondering what other things would people likely change on the car if getting it remapped as was going to have a gander around the Engine bay to see if anything hads been changed or upgraded.
Title: Re: Measuring BHP and Torque
Post by: StuF on May 18, 2015, 01:06:56 pm
Have a look to see if your shifter mechanisms have been changed for Forge items instead of the crappy plastic ones - fairly easy to spot!
Title: Re: Measuring BHP and Torque
Post by: irish_ram on May 18, 2015, 01:28:32 pm
Have a look to see if your shifter mechanisms have been changed for Forge items instead of the crappy plastic ones - fairly easy to spot!

Shifter mechanism????, sorry of rbeing stupid but where would I check this and what to look out for?