Beware of Kleemann
Don't even know where to begin. What exactly is this "very obvious" explanation? That the owner has a 507? How about a E63 which also comes with 507hp, would this customer also not expect to gain between 155-255hp along with 162-228lb tq?
It does not matter which car you put the kleeman supercharger kit into, the ECU remapping is the same across the board whether its in a C63 E63 or what have you. This is exactly why Kleeman sells their kits BY ENGINE not by CAR.
What you SHOULD be asking kleeman for is a more aggressive tune on their stock supercharger tune for the 507 C63, since that engine has forged internals that can support an extra 50HP gain on top of the stock gains....then you will see the numbers you want to see.
https://mbworld.org/forums/c63-amg-w...rning-you.html
You're digging your own hole here. If the tune is the sole performance difference(I doubt that, but I'm not educated enough to say either way) then when the motors range from 450hp-510hp, if Kleeman claims says the gains are(hypothetically)150-210hp along with providing one set S/C tune, one should assume
A) a 450hp C63 gains 210hp, to 660hp, and
B) a 510hp C63 gains 150hp, to 660hp
Either way, a 100bhp gain is less then the advertised gain no matter how you slice it.
Frankly, it should pick up over 100hp on factory manifolds and if you think otherwise, I dunno what to tell ya.
http://catalog.kleemann.dk/catalog/c...e/63-amg-m156/
According to this, up to 680hp can be expected with their SC. ALSO according to this, up to 715hp can be expected with a full exhaust. So no, the OP's S/C fell well short of expectations.
Do I still think OP jumped the gun and may never update this? Yes
Is his specific S/C seemingly a dud? Without question.
Last edited by ///AchMeinGott; Jan 20, 2015 at 07:05 PM.
Last edited by Sincity; Jan 20, 2015 at 10:31 PM.
Grabbed this car yesterday to retest per Brandon's request and here is where we ended up...
The car is right about where it was when it left... Makes the 6psi that Kleemann advertises and a very safe clean 11.7:1 AFR. This dyno session shows a gain of 85 whp and 97 wtq.
My personal impressions of the car. It is a blast to drive. Comparing it to my own personal car, a 2012 C63 PP with an ecu tune, it rightfully so blows it away in comparison. The 507 in itself is the perfect platform to start a build like this on.
The power is great, though it will just eat through the stock rubber in no time. The responsiveness of the car in very nice, almost instant torque and gratification when you part throttle. Mash the gas though and you're going now where fast...
I doesn't seem to fall off on the top end in a single gear but going through 2 or 3 gears at WOT the heat soak becomes extremely evident. Back to back runs on the dyno you can see how the heat soak effects power output as the car will drop about 10-15 whp easy. I would certainly like to see what a good trunk system or bigger pump / HE would do to keep the pulls consistent.
That's just my feedback, pretty common for any blower installed on these motors. Thanks for following
The Best of Mercedes & AMG
It does not matter which car you put the kleeman supercharger kit into, the ECU remapping is the same across the board whether its in a C63 E63 or what have you. This is exactly why Kleeman sells their kits BY ENGINE not by CAR.
What you SHOULD be asking kleeman for is a more aggressive tune on their stock supercharger tune for the 507 C63, since that engine has forged internals that can support an extra 50HP gain on top of the stock gains....then you will see the numbers you want to see.
You live in SoCal, which is basically a mecca for the aftermarket world so saying there are no other shops is no argument. So what was it? Why keep letting a shop mess up your collective car collection worth about $250k? That's all I'm getting at.
I read where you state why you kept going back. The whole "nobody is perfect" and doctor/attorney idea blah blah whatever. Again, there are plenty of other options out there but you insisted on dropping $100k into ACG.
Trying to keep the name calling and jabs at a minimum here but clearly my post had you lace up the gloves from some reason...
You live in SoCal, which is basically a mecca for the aftermarket world so saying there are no other shops is no argument. So what was it? Why keep letting a shop mess up your collective car collection worth about $250k? That's all I'm getting at.
I read where you state why you kept going back. The whole "nobody is perfect" and doctor/attorney idea blah blah whatever. Again, there are plenty of other options out there but you insisted on dropping $100k into ACG.
Trying to keep the name calling and jabs at a minimum here but clearly my post had you lace up the gloves from some reason...
I went back because in San Diego, there arent that many shops and because ACG was (and I assume still are) nice guys and kept apologizing that these were one-time mistakes, I went back. I was an idiot for doing that, clearly. I played a role in allowing my cars to get repeatedly screwed up by ACG.
I after I sold my C63 back to fletcher jones, the person who bought it from the auction house they sold it to said the Weistec supercharger was all installed incorrectly. And he was a MBZ master tech and could never get ACG on the phone to try and help him resolve the issue so he had to call Weistec directly.
Another in my person in my firm took my -- now regrettable advice -- to go to ACG and have downpipes and a tune installed on his C63. And what happened, car went into limp mode, issues with the O2 sensors, and the story goes on.
ACG has a notorious reputation by many down here as being inept. It's not that they arent nice guys, but time after time people have brought their cars to them and many have had issues that always seem to point back to the install. That's not to say they dont have any happy customers. But after dealing with them for 4 years and seeing the ineptitude I constantly, and stupidly overlooked, I am no longer surprised by what I hear.
That brings up an OUTRAGEOUSLY glaring point then. What if it keeps pulling to redline? If you're not getting an actual rpm readout up to 7200, then how do you know exactly what power it makes. Hell, it may not have cams to optimise the SC, but as long as it's not starving, it may make peak power @7000. NA the 507 is rated @6800. That could be a chunk of missing hp right there.
I've bought things from ACG as well as used them as an avenue to get through to ADV. Success both times, but no experience with their installation services so I cannot comment there. But from my experience with them the customer service is what I'd expect.
Back on topic though, I think the OP here is more at fault. Trying to explain this isn't his first rodeo modifying cars and clearly missing the mark on many many things, such as headers among other things.
Anyways, no harm done.
That brings up an OUTRAGEOUSLY glaring point then. What if it keeps pulling to redline? If you're not getting an actual rpm readout up to 7200, then how do you know exactly what power it makes. Hell, it may not have cams to optimise the SC, but as long as it's not starving, it may make peak power @7000. NA the 507 is rated @6800. That could be a chunk of missing hp right there.
You should change your screenname to Lardass because you come on here , spew your comments and then sit back and watch everyone else spew their comments and you say nothing .









