V7 Power Problem
#151
That's bad. That shouldn't happen! Try turning off the ESP, see if it helps as the ESP ON allows for more clutch slip. But that's a band-aid solution...
Did you change your air filters? Another member had that issue after installing ROW airboxes and it was due to incorrect installation as the box wasn't sealed right and MAFs weren't reading accurate g/s of air leading to incorrect load ratings and transmission was acting wonky.
Did you change your air filters? Another member had that issue after installing ROW airboxes and it was due to incorrect installation as the box wasn't sealed right and MAFs weren't reading accurate g/s of air leading to incorrect load ratings and transmission was acting wonky.
I do in fact have Weistec high flow filters, but the stock air boxes. I have read that the high flow filters could be causing the problem, but I notified EC of the filters as a mod when I first inquired about the tune.
#152
The filters themselves should not impact it. The incorrect reinstall of the boxes could.
#153
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
The transmission mode affects valve body line pressures, with M being the highest. So that definitely has an impact on the firmness of shifts. But I don’t believe that ESP mode makes any difference whatsoever.
#154
I was told by multiple tuners (before committing to EC) that the high flow filters usually cause problems with these cars and that I should go back to the stock ones or get row air boxes.
#155
I have AFE drop in filters and no issue. Ran the V3, V5(US - which only made 405whp...) and now I have Eurocharged Canada's "V7" and its all good.
#156
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With all you guys having issues with your tuning why dont you try a different tuner?
none of my oe tuning files have had issues with shifting or pinging or not making power etc.i was never told to unplug the battery over night and have flashed tunes on the dyno and made power.
none of my oe tuning files have had issues with shifting or pinging or not making power etc.i was never told to unplug the battery over night and have flashed tunes on the dyno and made power.
Last edited by skratch77; 04-30-2018 at 10:09 AM.
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#157
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With all you guys having issues with your tuning why dont you try a different tuner?
none of my oe tuning files have had issues with shifting or pinging or not making power etc.i was never told to unplug the battery over night and have flashed tunes on the dyno and made power.
none of my oe tuning files have had issues with shifting or pinging or not making power etc.i was never told to unplug the battery over night and have flashed tunes on the dyno and made power.
#158
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#160
#162
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#164
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#167
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2012 C63 P31 Sedan
How should the adaptation reset be done? I searched for the procedure on the forums and tried it, but never noticed a difference. Wondering if the procedure is different with Keyless Go. I haven't installed the V7 tune yet, but want to be prepared.
#168
#169
Junior Member
My dyno results on the V7 tune. I am running ROW boxes with MBH headers. The car feels great on M and C mode but I get a really rocky start in S mode. Feels like I'm a kid that doesn't know how to drive a manual as I'm skipping away in first gear, almost feels like I'm going to stall my automatic car. Anyone else get this problem?
#170
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Thread Starter
Is it not just pedal sensitivity?
My throttle is super sensitive in S and M, so I do sometimes have trouble controlling a subtle start off but I tend only to struggling after being in my other car all week which is sleepy. In C it’s butter smooth, and I only drive in that mode whilst it’s cold anyway. By the time it’s warm, I’m normally eased in for S or M, if I’m feeling awake enough.
My throttle is super sensitive in S and M, so I do sometimes have trouble controlling a subtle start off but I tend only to struggling after being in my other car all week which is sleepy. In C it’s butter smooth, and I only drive in that mode whilst it’s cold anyway. By the time it’s warm, I’m normally eased in for S or M, if I’m feeling awake enough.
#171
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[QUOTE=Nezzywezzy;7451452]
My dyno results on the V7 tune. I am running ROW boxes with MBH headers. The car feels great on M and C mode but I get a really rocky start in S mode. Feels like I'm a kid that doesn't know how to drive a manual as I'm skipping away in first gear, almost feels like I'm going to stall my automatic car. Anyone else get this problem?[/QUOTE
i see that was at p and l? So it was an awd dyno?
My dyno results on the V7 tune. I am running ROW boxes with MBH headers. The car feels great on M and C mode but I get a really rocky start in S mode. Feels like I'm a kid that doesn't know how to drive a manual as I'm skipping away in first gear, almost feels like I'm going to stall my automatic car. Anyone else get this problem?[/QUOTE
i see that was at p and l? So it was an awd dyno?
#172
I have all of these same clutch slip issues and loss of power with v7 in comparison to v6...almost 1.5 mph slower in 1/4 mile. Jerry only gave me the option of getting my car on a dyno for him to look at it which is not something I want to do because it won't be cheap and I did not expect to be spending $500 on a update for a tune (dyno time included). Upsetting and I want my money back if they can't fix this.
I was not told by Jerry to unplug the battery. If I have had v7 on the car for two days...should I just unplug the battery or uninstall and reinstall the tune and then unplug.
Thanks,
Mo
I was not told by Jerry to unplug the battery. If I have had v7 on the car for two days...should I just unplug the battery or uninstall and reinstall the tune and then unplug.
Thanks,
Mo
#173
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I think unplugging at this point should suffice. I just installed mine the other day by flashing the ECU, then disconnecting the battery for about 12 hours for good measure. It hasn't been long enough to tell, but I did notice the car shifting a little funny at first, but it seems to be adapting the more I drive. I also notice the same thing happening after changing to each drive mode.
My guess is the the TCU adaptations need to compensate to the engine's power delivery. I highly doubt this is a result of the increased power. My guess is that the throttle mapping for the V7 is more aggressive, therefore the throttle plate opening and engine output at a given throttle position is greater than before. If your TCU was had instead adapted to the previous throttle map and engine output, you can kind of imagine how things can be thrown out of whack.
My guess is the the TCU adaptations need to compensate to the engine's power delivery. I highly doubt this is a result of the increased power. My guess is that the throttle mapping for the V7 is more aggressive, therefore the throttle plate opening and engine output at a given throttle position is greater than before. If your TCU was had instead adapted to the previous throttle map and engine output, you can kind of imagine how things can be thrown out of whack.
#174
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My dyno results on the V7 tune. I am running ROW boxes with MBH headers. The car feels great on M and C mode but I get a really rocky start in S mode. Feels like I'm a kid that doesn't know how to drive a manual as I'm skipping away in first gear, almost feels like I'm going to stall my automatic car. Anyone else get this problem?
#175
Junior Member
I've only seen people get close to 500whp on flexfuel, headers, and a tune which ridiculous considering people are getting low to mid 500 whp on a weistec stage 2 blower. My dyno numbers are also uncorrected. I believe that the corrected horsepower is 479whp which would be around 560hp at the crank.