BW Chip Tune Result

BWchiptune is the oldest and 1st BMW tuner to offer tuning to BabyBMW forum members from its earliest days when the forum started. We custom-tune BMW cars in house on our Dyno Dynamics rolling road. With over 30 years of experience on BMW’s servicing & repairs, coding & programming, EWS immobilizer removal, we are the 1st in the UK to refurbish BMW DME & DDE ECUs up to the newest cars. West London’s independent BMW specialist, UB3 1BB, call us on 02085611818 0r 07831103030

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123_Daz
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Re: BW Chip Tune Result

Post by 123_Daz »

The fact that the stock figure is exactly 340HP is rather suspicious :shock:

mtechtone
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Re: BW Chip Tune Result

Post by mtechtone »

Don’t these engines start making peak torque from something like 1500rpm and beyond. The graphs in this thread start at ~2000rpm. Why is it not possible to be producing more torque below ~3000rpm!?

I presumed the issue was going to be the dip in power on the stock run!? Making peak at 7k... also unusual.

With that said, I’d very much like to think there’s an explanation. BW Chiptune have a very good rep, way back from my days on the e36coupe forum. So I’m not here to slate.
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Chapscrap
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Re: BW Chip Tune Result

Post by Chapscrap »

Interesting conversation. I agree turbo spool up speed will be virtually the same, standard or tuned, up to certain revs, or time passed, as to begin with there’s only so much energy available to spool it up. The op’s charts do look odd. There’s a big hole at 5.5-6k???
The bit I don’t quite understand is how the standard engine came out at exactly 340bhp, or is that just a figure that’s typed in? From the factory they seem to be anything from 335 right up to 370, possibly dependent on the dyno operator, and what they’re selling?🤭
The important thing is the op is pleased with it and the car drives well.
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Dizeee
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Re: BW Chip Tune Result

Post by Dizeee »

The stock run happened a few times, I saw various numbers, 342, 33 something and a 362. Then there was mention of base maps being loaded, and the consequent tweaking and adjusting of those.

I was pleased, but now reading these comments I am wondering whether to be concerned.

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Chapscrap
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Re: BW Chip Tune Result

Post by Chapscrap »

I’m more used to looking at bike graphs tbh, where usually there is quite a marked dip in torque at around 5500rpm, purely down to manufacturers having to get through emissions testing, and don’t profess to be any sort of expert. I have had cars re mapped though, and for me the base line standard pulls were all pretty consistent, only dipping at the top end as intake air temperatures rose after a few runs and the ecu reacted accordingly, however the initial ramp up of torque were very similar, including once the initial new map was loaded.
Tbh I wouldn’t worry, BW have a good rep on here, you say it drives well, so just go enjoy your car 😁
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Dizeee
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Re: BW Chip Tune Result

Post by Dizeee »

Thanks. I hope your right. I can't help but feel a little deflated to be honest after some of the comments, 340 dead is very strange. I am no expert which doesn't help.
I need to get 150 miles under my belt which is my total planned commute Sunday and Monday to really test the car.

I messaged Jason about this thread, guess he has declined to get involved.

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Re: BW Chip Tune Result

Post by Torquey »

I wouldn’t take any notice of any negative comments, I’ve had 2 cars mapped by Jason which have been excellent. Take it for a blast over the next couple of days and I guarantee you’ll have a big smile on your face, if your happy that’s all that matters - enjoy .
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Re: BW Chip Tune Result

Post by NISFAN »

Dizeee wrote:Thanks. I hope your right. I can't help but feel a little deflated to be honest after some of the comments, 340 dead is very strange. I am no expert which doesn't help.
I need to get 150 miles under my belt which is my total planned commute Sunday and Monday to really test the car.

I messaged Jason about this thread, guess he has declined to get involved.
Apologies if my comments have taken the shine off your map, that wasn’t the intention. At the end of the day, you now have a mapped car with over 400hp and a heap more midrange. Awesome stuff. Who cares if it’s 450hp or 410hp.
When the corona crisis is over, we can arrange another dyno day. You can see how your figures match with other cars. Always interesting to see.
A chap turned up last time with a 135i coupe, hybrid turbos, fuel mods, big intercooler, decat, the lot. Fresh from a tuner session. He reckoned it was pushing 500hp. Dyno said 380 Image the blood drained from his face as an almost stock 140i with simple MHD was over 400.


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Re: BW Chip Tune Result

Post by jason@bwchiptune »

NISFAN wrote:Glad you like the results Dizee. A map really wakes up these cars.

Not wanting to p*ss on anyone’s chips, that dyno plot looks bogus, and exactly the reason I hate tuners. Correction factors used to blow up (or deflate) the numbers.

As a result I’d not compare this to what an OTS map produces. Not saying one is better than the other, just that a comparison using these numbers is inconclusive.


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I’ve been tuning BMW cars for 30 years and also traveled the world tuning bmws if you search

I am honest and run a honest proper heart break dyno dynamics rolling road

There is nothing bogus or fake about our dyno readings so watch what you say if you don’t have a clue as it’s taken me many many year to gain my reputations as one of the oldest and honest bmw tuners in the uk


Both standard and tuned are tested the same way


If you read all the threads where I have retuned cars that have been tuned by other tuners you will see many of them have been tested on the other tuners dyno then likes of Surrey rolling road then my dyno

I have hundreds of cars that have been tuned by tuners who are also on bmw forums or been recommended on BMW forums by other people
That have shown over exaggerating dyno graphs from their dynos which I have proven and many of the cases I have retune their cars to get more power or the power there cars was meant to make after being Remapped after being Remapped by the 1st tuner
I have done this for so many many years and have loads of proof

You will see that my dyno reads the lowest and some 15bhp less than Surrey rolling dyno dynamics (which is the old type compared to mine) my dyno was dyno dynamics uk test and loan dyno before I brought it

The way we dyno cars are the same as if you where doing a rolling start test on the road from say 30-40 mph up to 110-130mph

How else would you test the torque difference below 3000rpm
I was one of the 1st to dyno test cars this way and others have copied me
This was one of the reasons how I gained more lower end torque out of NA cars for so many years in my past than others before cause I could see what my tuning was doing under 3000rpm and remember it’s not Bhp that makes a car faster it’s the torque



If you look on all my dyno graphs that I’ve tested cars whether or not we have tuned them or not
We always dyno the cars the same way



You are more than welcome to come down and test your car standard and with you mhd or bm3 maps on my dyno
Is that you cars dyno graphs you posted up on Surrey rolling roads dyno?

Jason BW


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jason@bwchiptune
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Re: BW Chip Tune Result

Post by jason@bwchiptune »

Dizeee wrote:Thanks. I hope your right. I can't help but feel a little deflated to be honest after some of the comments, 340 dead is very strange. I am no expert which doesn't help.
I need to get 150 miles under my belt which is my total planned commute Sunday and Monday to really test the car.

I messaged Jason about this thread, guess he has declined to get involved.

I’ve had my 3 year boy with me all day and can’t spend all day on every forum that mentions my name that why I’m still up now



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Re: BW Chip Tune Result

Post by jason@bwchiptune »

Torquey wrote:I wouldn’t take any notice of any negative comments, I’ve had 2 cars mapped by Jason which have been excellent. Take it for a blast over the next couple of days and I guarantee you’ll have a big smile on your face, if your happy that’s all that matters - enjoy .
Your 1st car was Remapped by a well recommended BMW Tuner on many of BMW forums and all he did was use a tune made from another he had tuned and put it on your ecu which changed your vin number and caused Confliction is with your automatic gearbox


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mtechtone
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Re: BW Chip Tune Result

Post by mtechtone »

jason@bwchiptune wrote:
Sat May 23, 2020 12:17 am
The way we dyno cars are the same as if you where doing a rolling start test on the road from say 30-40 mph up to 110-130mph

How else would you test the torque difference below 3000rpm
That’s that settled then, surprise surprise!

My car’s running MHD stage 1, the extra torque below 3k rpm is very obvious and I’d very much expect to see that on a dyno graph. As per the op’s torque increase with BW’s graph shown.
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Re: BW Chip Tune Result

Post by jason@bwchiptune »

Sure just let us know when you can pop down
We can test it as standard and with your map on if you can flash it As this is the most accurate way to test your car so you can see the difference before and after

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mtechtone
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Re: BW Chip Tune Result

Post by mtechtone »

Ah, thanks but no thanks Jason. If I was that close to you I might’ve been knocking on your door for a remap in the first place.

I was just referring to seeing improved torque curves at low rpm’s on dyno graphs. I think they should be clear to see on a graph, as yours demonstrate and as you’ve now explained.

:)
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Re: BW Chip Tune Result

Post by macdelft »

Dizeee wrote:Hi Nisfan, no offence here as I am happy with the result. I am no expert, not sure what you mean by dyno plot? If it helps I was present for the runs and could see these were all genuine runs e.t.c. There was an issue with heat as it was stinking hot and the car was idling for some time, so in the end there were 3 fans blowing on the car to try and replicate correct temps etc
Being happy with it in the short term and long term are two different things ;)

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