[Wally_84]

So I finally went to a dyno, what a disappointment...
The results are on the crank and not on the wheels.
Any one have a clue what is wrong?
Car was refilled with Shell V-power racing 100 octane fuel.

Mods:
Rev Motoring Silicone Intake Hose
PI
Catless Headers
Pedal Box v2
Milv's
BPC Tune



I wonder if the dyno is'nt the problem.
Engine on the road goes up to 7200RPM after the tune but somehow on the graph the curve never even reach the 7000RPM.

[Biginboca]

What does 243 KM convert to in horsepower? 243 KW is like 327hp but I don’t know what KM is!?!?

[Wally_84]

KM is hp.
243,4 KM (hp) is 179 kW.
The Car is manual.

[Biginboca]

Originally Posted by Wally_84

KM is hp.
243,4 KM (hp) is 179 kW.

Your car should have more bhp than that stock, so yes that dyno is suspect...

[Noir]

The euro n52 have more than that stock??? O:

OP, Maybe your Pedal box?

[rjahl]

What's is a Pedal Box and is that screwing with your fuel mixtures?

Look into the conversion factor used to convert the measured power RWHP to Crankshaft HP.

[Wally_84]

That's Pedal Box AKA Sprint Booster but made by Germans:
https://www.pedalbox.com/en/

Can Pedal Box screw with the fuel mixture? Seems unlikely

[Taskmaster]

Originally Posted by Wally_84

That's Pedal Box AKA Sprint Booster but made by Germans:
https://www.pedalbox.com/en/

Can Pedal Box screw with the fuel mixture? Seems unlikely

Well the powerbox makes the car run richer.

[Wally_84]

Originally Posted by Noir

The euro n52 have more than that stock??? O:

OP, Maybe your Pedal box?

Yep, EURO N52B30 in 330i has 258 hp Stock from factory.
Maybe my Timing chain is to be blame? I have 144kkm , 90.000 miles.

[Wally_84]

Originally Posted by Taskmaster

Yes, it absolutely does, it makes the car run richer.

So you say I should go for another run without the damn thing?

If that pedal box would be to blame for power loss I should fell extra hp after removing it.It's hard to believe because I don't feel any extra power without it. With my set-up it should be around 280, 290hp so I would definitely feel the difference.

[Taskmaster]

Originally Posted by Wally_84

So you say I should go for another run without the damn thing?

If that pedal box would be to blame for power loss I should fell extra hp after removing it.It's hard to believe because I don't feel any extra power without it. With my set-up it should be around 280, 290hp so I would definitely feel the difference.

You should run on the dyno without the tune (BPC) and with the tune and see the difference.

Did you also run the adaptations in INPA or the like to account for the valvetronic relearn?

[Bob@BPC]

Originally Posted by Wally_84

So you say I should go for another run without the damn thing?

If that pedal box would be to blame for power loss I should fell extra hp after removing it.It's hard to believe because I don't feel any extra power without it. With my set-up it should be around 280, 290hp so I would definitely feel the difference.

Did you do a before(stock) dyno pull?

[Wally_84]

Originally Posted by Bob@BPC

Did you do a before(stock) dyno pull?

I regret now but I did not. I guess i assumed that i would dyno at the end of mods and see what I gained. Car seem to have around 6sec to 63mph and 260kph max so i assumed stock power was there.

[Wally_84]

Originally Posted by Taskmaster

You should run on the dyno without the tune (BPC) and with the tune and see the difference.

Did you also run the adaptations in INPA or the like to account for the valvetronic relearn?

People here and on most similiar topics said that valvetronic does"nt need a relern procedure because it should re-learn by its own at a start up. I have INPA so can give it a try.

[Taskmaster]

Originally Posted by Wally_84

People here and on most similiar topics said that valvetronic does"nt need a relern procedure because it should re-learn by its own at a start up. I have INPA so can give it a try.

Definitely do that.

[atmosphericM]

Looks low, but a dyno is almost worthless without a reference point. Do you have a graph, from the same dyno, of your car before you installed the mods? Do you have figures for other cars, whos power output you are sure of, on the same dyno? etc.. you get the point. Without knowing who set up your run, what variables the computer is using to adjust the output figures, how the physical equipment has been set up, etc... your output figures are basically useless.

Now, if you want to assume that the dyno should and would output figures that you're expecting it to, I'd start with what has been suggested, and remove the 'pedal box' first, then go from there. What's the point of two 'tunes' on one car, anyway?

The reason the graph never reaches 7000 RPM is because the dyno operator most likely is watching the graph as he's giving throttle, and when he sees the TQ/HP start to decrease, he is 'shutting her down' early.. because why not.. the peak numbers (all most care about) aren't changing.

Does the car feel faster than stock? That's what really matters at this point. Are you absolutely sure that those figures are "crank" measurements (conversions)? The numbers look about right (a little low maybe) for WHP with your mods.

[Wally_84]

Originally Posted by atmosphericM

Looks low, but a dyno is almost worthless without a reference point. Do you have a graph, from the same dyno, of your car before you installed the mods? Do you have figures for other cars, whos power output you are sure of, on the same dyno? etc.. you get the point. Without knowing who set up your run, what variables the computer is using to adjust the output figures, how the physical equipment has been set up, etc... your output figures are basically useless.

Now, if you want to assume that the dyno should and would output figures that you're expecting it to, I'd start with what has been suggested, and remove the 'pedal box' first, then go from there. What's the point of two 'tunes' on one car, anyway?

The reason the graph never reaches 7000 RPM is because the dyno operator most likely is watching the graph as he's giving throttle, and when he sees the TQ/HP start to decrease, he is 'shutting her down' early.. because why not.. the peak numbers (all most care about) aren't changing.

Does the car feel faster than stock? That's what really matters at this point. Are you absolutely sure that those figures are "crank" measurements (conversions)? The numbers look about right (a little low maybe) for WHP with your mods.

Does anyone have any links to where can I download ISTA-D? I can't find VVT learning procedure on INPA so it must be on ISTA-D but can’t find any downloads.

@atmosphericM I didn’t made a stock basic dyno run. I know that I should and it would made things a lot easier now, but I haven’t. I'm thinking ditching the pedalbox, VVT relearn and maybe another dyno would tell me more.

[Eagle1oh7]

Get a real tune! Avoid Mickey Mouse BS!!

[atmosphericM]

^ He has BPC, just also using the pedal box with it.

OP, I wouldn't bother dyno'ing until you do something that makes a big difference in power, something that is night and day difference. If you're truly only at 250 crank HP, you are missing out on like 50 crank HP. You'll know when it appears. Like you said, ditch the box and reset. Good luck my friend!

[Noir]

10/10, would look at that pedal box, my dude.
I'd remove it.
I removed my powerbox prior to BPC dyno tuning my e90 last year, with the knowledge that the box would conflict with what Bob wrote in the tune. I did it with AAs tune, MOSTLY kept on throttle remap because the touchier throttle advertised at the time, was not living up to what I wanted. BPC on the other hand, got it where it should be. And if it works like the powerbox does, where you can switch maps/ Turn off (thisthisthis.) while holding the accelerator down and cycle through each map with a press of the accelerator while the dash is powered on, try doing a run with the jank disabled/no map selected. I KNOW getting inside that box to mess with the pins is tiresome... I just hope this is possible for you so you can do a non-invasive change to see if it's the culprit or not.

[Taskmaster]

Originally Posted by Wally_84

Does anyone have any links to where can I download ISTA-D? I can't find VVT learning procedure on INPA so it must be on ISTA-D but can’t find any downloads.

@atmosphericM I didn’t made a stock basic dyno run. I know that I should and it would made things a lot easier now, but I haven’t. I'm thinking ditching the pedalbox, VVT relearn and maybe another dyno would tell me more.

I believe the Valvetronic learning is under the Throttle relearn in INPA.
rjahl helped me out with it.

Night and day difference (and he rode in my car after)

[Wally_84]

Originally Posted by Taskmaster

I believe the Valvetronic learning is under the Throttle relearn in INPA.
rjahl helped me out with it.

Night and day difference (and he rode in my car after)

My German MSV70 INPA, may not have that option.
I searched everywhere but failed and did not want to press buttons for the options I did not understand. I have send a pm to your friend hopfully he might be able to help.