Jasonoff

If they went bad after writing V7 (by coincidence) they won't magically get better when reverting back to V6.

Dave just didn't read the thread properly. It happens...

bentz69

Can the guys with problems explain in detail what their problems are and what mods they currently have? I recall reading some guys saying the power went flat at a certain rpm range?

Personally I dont notice any issues. But honestly, I havent felt a power increase between stock, v6 and v7....even though the dyno had increases in hp and tq between each tune.

Maybe my *** dyno isnt as sensitive as others lol

Headers coming in next week so maybe that will change

Cozy

For me personally, the issue is this.

Under 4000rpm, the car feels great, really strong, more refined than V6 and more eager to go. Floor it, you shoot off until you get to 4000rpm, then you hit a wall where the car accelerates but slowly, like TCS has just kicked your *** and stopped your power. This stays all the way to the redline.

It doesn't matter if I turn TCS fully off, battery reset, drive for miles to adapt, it's all the same.

I flash back to stock, V5 or V6 and the car is an absolute brute passed 4000rpm like always although I can clearly feel the power differences between all three.

I can only assume it is something in the mapping as it is a very specific issue.

Car is 2013 C63 non-PP with headers and 20k something miles. as never missed a beat until V7.

Amr_c63

Ditto x2

DavesMeanE's

Perception is a funny thing... Just like when you first drive a car with 600+ HP, feels crazy fast, right? Then after a while it just feels "normal", or "slower". It's not, you're just used to it. This will eventually happen to most people.

Until you compare V6 and V7 on a dyno, you won't actually know what is going on.

Besides that, just spend the $2.99 to check your intake gaskets. It may be the easiest thing you'll ever do.

Thanks

Dave

Amr_c63

Any updates from anyone on this ? I know the issue in Tx is slowing things down for the Houston location(jerry).

I tried loading it up again for ****s and giggles and same problem as described , re loaded the v6 and problem disappeared all normal . I'm thinking the none beta files sent out were maybe different who knows.

from all this awesome talk about the 7 I'm really itching to enjoy it before winter comes my way here in boston !

BLKROKT

Did you change out your head gaskets and wrist pins? I bet that's it. Just do that and you'll be good as new!

Cozy

I haven't heard anything yet but Houston is a sensitive subject so I'll give it another week perhaps before I contact again. I haven't tried V7 again but I've tested it enough to know it's bad.

On the positive side, I'm having some good fun with V6 still but like you say, after the good news we've heard about V7, I really want to try it if for nothing than the general refinements I felt low down in the rev-range.

I swapped in addition my pistons, rods, camshaft, belts, wheel bolts and brake pads and it's still the same...
In all seriousness, there are no leaks on this engine.

Amr_c63

I actually had to rebalance my crank and adjust my vanos units , car runs so much better now..

Being realistic my intake gaskets were already swapped out 1 month prior to my car getting tuned.

Amr_c63

I actually had to rebalance my crank and adjust my vanos units , car runs so much better now..

Being realistic my intake gaskets were already swapped out 1 month prior to my car getting tuned.

Vladds

The number of reflashes is probably not unlimited, although large. Usually a reflash is not done for diagnostic purposes.


For my Subaru the maximum was in the 3-400 range and I am up to 60.

Cozy

I've flashed this car about 6 times total. The next flash will hopefully be a new V7 file from Jerry and then tat's how the car will stay unless I go fully to stock for sale. I doubt I'll end up supercharging this, although never say never.

Adam Chambers

One observation I have noticed with V7 is the oil temp is higher. Where I usually ran around 119 -121 degrees F (90+ degree days), now I am climbing to 130 (65 degree mornings) depending on driving. This is just normal driving to and from work. never saw 130 before on a work drive. I am guessing that its just running leaner and creating more heat. Water temp is staying normal.

AMG3.2

I <3 vanos.

Amr_c63

Alright so Jerry got back to me and due to the shop not running at the moment there is nothing that can be done till everything is 100% , totally understandable . He also noted that with the 35+ TEST cars not one issue was reported.


So for him to even know where to start he is looking for a log or someone present that has this problem.

Cozy

How do you log this car with MyGenius? It's a little less fancy than Cobb Tuning Access Ports I've used.

If I can't do it, can we get refunds on the tunes that don't work? Being in the UK, I can hardly drag the car to Texas.

Amr_c63

You cant log with the Mygenius.

Cozy

So we're banking on one of us being located in Austin. There is only one Eurocharged shop over here and it's 200 miles away.

If Eurocharged were willing to fault find and fix this for free, I'd drive up there but unlikely. I think I'll have to call it quits at V6, and see if they'll process a refund for the dudd tune.

Amr_c63

From a good source , iv heard that maybe the V7 is running to much timing
and its causing the car to knock , thus it pulls timing as a safety and that's where we feel the tremendous power loss. It could be something to consider or like I said before something got either changed or adjusted going from beta file to the official release file that I got .

Cozy

That's exactly the feeling, like timing is being pulled.

Wiggis

That's plausible.. in which case it would be sensitive to all sorts of stuff, but most notably fuel quality, right?

So those with a problem - what fuel are you running with?

Cozy

94Oct, nothing else.

Wiggis

Any ethanol? Standard plugs?

Amr_c63

93OCT SHELL ONLY

zcct04

How does 94 oct in UK compare to the RON/MON numbers in the states? I'm guessing an 89 in US but am not sure.