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      04-13-2013, 03:27 PM   #1
Ian///M
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Surging power

Getting a strange surging/pulsing power when going WOT at speeds over 100kmh, especially on up hills. About 4 surges before it shrugs it off. I assumed it was traction related, but not convinced now. Any ideas?

On the dyno nothing showed any boost problems and pretty smooth curve.
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      04-13-2013, 04:00 PM   #2
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What was your traction control setting?

If on, it certainly could have been the DSC cutting power -- although I believe you would have a flashing yellow light on your instrument panel when it occurred.

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      04-13-2013, 04:04 PM   #3
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Quote:
Originally Posted by MDORPHN View Post
What was your traction control setting?

If on, it certainly could have been the DSC cutting power -- although I believe you would have a flashing yellow light on your instrument panel when it occurred.

Neil
Hey Neil... Same with all nannies on or in MDM
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      04-13-2013, 05:10 PM   #4
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Hey Neil... Same with all nannies on or in MDM
OK, but does it occur with all of them off?

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      04-13-2013, 05:13 PM   #5
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Quote:
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OK, but does it occur with all of them off?

Neil
Yes, less pronounced with all nannies on, thinking may unload the Evolve and see if same
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      04-13-2013, 07:38 PM   #6
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Quote:
Originally Posted by Ian///M
Quote:
Originally Posted by MDORPHN View Post
OK, but does it occur with all of them off?

Neil
Yes, less pronounced with all nannies on, thinking may unload the Evolve and see if same
Hi Ian. Any particular gear you where in, or all gears over 100 at WOT?

Assuming this surge occurred during yesterday's drive day?
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      04-13-2013, 08:05 PM   #7
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Hi Ian. Any particular gear you where in, or all gears over 100 at WOT?

Assuming this surge occurred during yesterday's drive day?
All gears. Been happening since tune. I get traction light in 5th even. I was hoping it was the PS2s, but PSS are the same if not more pronounced.

Ok if it is a traction issue, but more concerned now it is engine related
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      04-13-2013, 09:12 PM   #8
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or Evolve tune related? Seems it's the troublesome one?
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      04-13-2013, 11:55 PM   #9
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Quote:
Originally Posted by Ian///M View Post
Getting a strange surging/pulsing power when going WOT at speeds over 100kmh, especially on up hills. About 4 surges before it shrugs it off. I assumed it was traction related, but not convinced now. Any ideas?

On the dyno nothing showed any boost problems and pretty smooth curve.
Hi,

Can you share with us the dyno results? as im sure the power curve might show something, boost wont.

i know the problem as i also had it since tune, on all stages too (S1 S2 S3). The pulsing power delivery is between 3k-4k under load, especially higher gears (4th, 5th, 6th), low speed and you give it a WOT, i can regenerate it any time this way.

I always thought there a mechanical issue with the car, but after moving from tune to tune with mods, i realised that it is the issue.

I called evolve and explained the issue. turned out they are aware of the problem, however they say not all 1Ms suffer from it, and there isnt a case in the UK so they can personally diagnose the problem and try to solve it. Salman said he will send me a couple of files to try out, still waiting for his feedback.

I dropped the car at a friends garage and when monitoring the car through Autologic when the issue happens, it seems the Vanos timing isnt right. i dont want to judge on this but unless I get a real solution for the problem, i am going for another tune as this issue is really annoying.

if anyone else have the same issue with the tune, please give us your feedback
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      04-14-2013, 12:57 AM   #10
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Quote:
Originally Posted by Stratus650 View Post
Hi,

Can you share with us the dyno results? as im sure the power curve might show something, boost wont.

i know the problem as i also had it since tune, on all stages too (S1 S2 S3). The pulsing power delivery is between 3k-4k under load, especially higher gears (4th, 5th, 6th), low speed and you give it a WOT, i can regenerate it any time this way.

I always thought there a mechanical issue with the car, but after moving from tune to tune with mods, i realised that it is the issue.

I called evolve and explained the issue. turned out they are aware of the problem, however they say not all 1Ms suffer from it, and there isnt a case in the UK so they can personally diagnose the problem and try to solve it. Salman said he will send me a couple of files to try out, still waiting for his feedback.

I dropped the car at a friends garage and when monitoring the car through Autologic when the issue happens, it seems the Vanos timing isnt right. i dont want to judge on this but unless I get a real solution for the problem, i am going for another tune as this issue is really annoying.

if anyone else have the same issue with the tune, please give us your feedback
Dyno attached. It is in the gears from 4th upwards. Think I will just ask Evolve for my $ back as they offer that. I unloaded the tune and no issue with surging power today.
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Last edited by Ian///M; 04-14-2013 at 03:10 AM.
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      04-14-2013, 01:52 AM   #11
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Quote:
Originally Posted by Ian///M View Post
Dyno attached. It is in the gears from 4th upwards. Think I will just ask Evilve for my $ back as they offer that. I unloaded the tune and no issue with surging power today.
I think the fluctuation is clear on the curve between 95 to 100 KPH
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      04-14-2013, 07:45 AM   #12
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Ian same thing happens in mine at about 100kph but in 6th only, it had the slightest of shrugs. Feels like swell in torque of sorts and the car doesn't know what to do....skips a beat then continues on.
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      04-14-2013, 08:05 AM   #13
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Might have a play, but I rarely goes WOT in 5th or 6th.
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      04-14-2013, 04:21 PM   #14
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Quote:
Originally Posted by bmw1mc View Post
Ian same thing happens in mine at about 100kph but in 6th only, it had the slightest of shrugs. Feels like swell in torque of sorts and the car doesn't know what to do....skips a beat then continues on.
Interesting. This is in 4th and up and gets 3 to 4 surges before goes away. Typically uphill and never notice unless on fast country roads. Even on the track I haven't noticed it. I have removed the tune and all ok.
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      04-14-2013, 04:24 PM   #15
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Quote:
Originally Posted by Stratus650 View Post
I think the fluctuation is clear on the curve between 95 to 100 KPH
Boost curve pretty normal to look like that, the power is smooth which is where the issue is in driving conditions, not on the dyno.
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      04-14-2013, 04:51 PM   #16
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Hey Ian,

Had the same thing with the Evolve tune.

The problem is gone since I switched to the COBB?!

The tune Pete put down on the COBB is silky smooth, but ball tearing when you get on it.

Only a small investment to switch??
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      04-15-2013, 04:18 AM   #17
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Send a message via Skype™ to Imran@Evolve
Hi guys

We have an update on the tune. I believe all of you are running on the first generation tune. Please email me imran at evolveautomotive.com and I will arrange updated tunes to be sent to you all.
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      04-15-2013, 08:16 PM   #18
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Quote:
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Hey Ian,

Had the same thing with the Evolve tune.

The problem is gone since I switched to the COBB?!

The tune Pete put down on the COBB is silky smooth, but ball tearing when you get on it.

Only a small investment to switch??
Was it a custom from Pete?
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      04-15-2013, 09:30 PM   #19
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Quote:
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Email sent
Same here
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      04-15-2013, 11:21 PM   #20
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Quote:
Originally Posted by Imran@Evolve View Post
Hi guys

We have an update on the tune. I believe all of you are running on the first generation tune. Please email me imran at evolveautomotive.com and I will arrange updated tunes to be sent to you all.
Still waiting for response to email?
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      04-16-2013, 01:16 AM   #21
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Not sure Sparoz, I'll have to check with Pete, but I think so based on the Mods I'm running??
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      04-16-2013, 07:42 AM   #22
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Quote:
Originally Posted by emack
Not sure Sparoz, I'll have to check with Pete, but I think so based on the Mods I'm running??
Last I heard Pete is still in development stages of a custom Cobb map, so you're probably running a standard map.
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