Need HELP diagnose power lost from Kleemann S/C
But other than that it feel the same the day I pick it up fromt eh installer. But the dyno meter say it lost over 70 whp.
Wasn't making the HP expected. Went to a different dyno meter. HP was about the same and Tq is way up.
Dynojet 248C Baseline 302whp/311Tq. S/C make 348whp/349wtq
Mustang dyno make 362whp/434wtq S/C make 5.5 - 6 psi boost.
When they install the S/C they did replace the MAF. Charge me almost $400.
Car felt congested, not enough air coming it so I replace the the air filter with a K&N. It open the engine air way alittle and I feel the car Tq & power gain. I only have the K&N in there for one day than got a dyno the next day.
Two different dyno meter different day, Something is not right here. We swap out mass air insert while on the Mustang dyno and make several run with new sensor it make no different. It ran richer.
I haven't notice anything different in power since I got the S/C put in, only on the dyno meter it not making what it support to make.
COuld the MAF sensor went bad before I gotten the car back

Why it didn't make any diffferent with new mass air sensor?

Boost drop as the rpm went up.

Can someone please help me diagnose this power lost. $16 grand for a 60whp increase seen a little ridiculous.
people who install it not to helpful, they don't want to step up and help me. They still think the mass air sensor is bad due to the K&N filter and the dyno shops don't know what they are doing, I'm tired of dealing with them *******!
I also post this tread in the W211 E55 section hoping someone know what going on.
thanks you all in advance!!
Last edited by Peter_02AMG; Apr 3, 2008 at 12:56 PM.
you said you just installed K&N's
they come intentionally overoiled from the factory, right outta the box, you have to wipe them really good first before installing.
if that wasn't done and some oil got on the new MAF, then .....
i would take the MAF out and clean it with an electronics cleaner spray, or an actual qtip with rubbing alcohol on the sensor
then disconnect battery for half hour to reset values...
are you getting any codes at all?
ok basics out of the way, dyno # are just that, you can't compare numbers from one dyno machine to another.
of course assuming that the installer did a perfect job...
you said you just installed K&N's
they come intentionally overoiled from the factory, right outta the box, you have to wipe them really good first before installing.
if that wasn't done and some oil got on the new MAF, then .....
i would take the MAF out and clean it with an electronics cleaner spray, or an actual qtip with rubbing alcohol on the sensor
then disconnect battery for half hour to reset values...
are you getting any codes at all?
ok basics out of the way, dyno # are just that, you can't compare numbers from one dyno machine to another.
of course assuming that the installer did a perfect job...
Tq seen normal @ 434wtq but only make 362
whpBoost drop off as rpm goes up.

will electronics cleaner spray damage the sensor???
thanks

I only see the HP lost on the dyno. Didn't notice power lost during the whole time I had the car.

I put a new MAS insert in while on the Mustang dyno and it didn't make any different. That new one can't be bad too..

A few months after I owned it, I installed a K&N air filter in it and it set off many of my o2x sensors...not once or twice...but 13 consecutive times!
I had '13 separate visits' to the BMW service department over a period of two months or less...even though they threw away my K&N filter the first time they saw it in there....and scolded me for putting it in...they kept repairing my car "under factory warranty"....
The ox sensor problems never went away however....so I ended up trading in the car with only 8000 miles on it...and losing over $5000 grand!!!
Those crazy K&N filters are full of oil that really screws up the Bosch sensors on these fussy German cars!I am not sure if the K&N is causing your car to go whacky on you or not....but I am certain I'd be over at the place screaming at somebody that just installed your Kleeman S/C for $16 grand and are not willing to help you with your new problems!!!!
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cost 11k ish, 1k ish for ecu
labor for install should be 1.5k (average from all installs i've ever heard)
or diy it's possible
they used to cost a lot more, price went down from 15kish to 11kish when w211 e55 arrived on the scene
.........I feel VERY VERY VERY STRONGLY. Repeat EXTREMELY STRONGLY!!! that those of us in the Mercedes benz community are getting a very raw deal with engine modificayions and it is not just about cost.
..........I have been saying for a long time these modifications need to be done at a performance shop. At minimum the shop should have a star diagnosis program and a dyno machine. Your car should have pre and multiples of post modification dynos. Your car needs to be properly tuned after any modification. Installing a supercharger in in a car is not like installing brake pads. NO, your car should not be jerking. THE CAR NEEDS TO BE PROPERLY TUNED!!!!!!!!!!
......what you are experiencing where the installation guy blames the dyno guy is exactly what happens in Atlanta now. The few places that intall Kleemann s/c's do not have dynos. The moment you pick up your car, you are on your own. One mechanic will blame the other and in the meantime you are left holding the bag. Even the STI shops have dynos. Somehow MB tuners and vendors think that MB owners are just stupid people with large bank accounts. You will not find even an STI performance shop without a dyno.
.......The 360WHP you are making is probably not that much less than you are going to make. The most powerful Kleemann s/c's were the very first ones they introduced in 2001 into the US market. Those had the flaw of having mechanical water pumps that were prone to fail. The next generation s/c's had electric water pumps. I don't exactly why, but they made less power. The 550HP gain first of all was bogus even for the verr first s/c's but for the subsequent s/c, 550HP was TOTALLY OUT OF THE QUESTION. Then came the latest group of s/c's that make even less HP. As it stands now about 380 or so HP to the wheels is probably what one should reasonably expect from a Kleemann s/c without headers, exhaust, and camshafts and smaller s/c pulley. Before the latest group of s/c's one could expect about 400HP to the wheels. The very first ones that came out in 2001 made about 420WHP. These are generalizations based on dyno's I have seen.
.........K&N filters can kill your MAF, but you have no clue what is wrong with the car. Your simple OBD2 scanner is not what you use to tune the car. You are now left holding the bag because you can no longer go to the dealer and the shop that did your install is not a performance shop and cannot tune your car properly. I have been there.
Ted
.........I feel VERY VERY VERY STRONGLY. Repeat EXTREMELY STRONGLY!!! that those of us in the Mercedes benz community are getting a very raw deal with engine modificayions and it is not just about cost.
..........I have been saying for a long time these modifications need to be done at a performance shop. At minimum the shop should have a star diagnosis program and a dyno machine. Your car should have pre and multiples of post modification dynos. Your car needs to be properly tuned after any modification. Installing a supercharger in in a car is not like installing brake pads. NO, your car should not be jerking. THE CAR NEEDS TO BE PROPERLY TUNED!!!!!!!!!!
......what you are experiencing where the installation guy blames the dyno guy is exactly what happens in Atlanta now. The few places that intall Kleemann s/c's do not have dynos. The moment you pick up your car, you are on your own. One mechanic will blame the other and in the meantime you are left holding the bag. Even the STI shops have dynos. Somehow MB tuners and vendors think that MB owners are just stupid people with large bank accounts. You will not find even an STI performance shop without a dyno.
.......The 360WHP you are making is probably not that much less than you are going to make. The most powerful Kleemann s/c's were the very first ones they introduced in 2001 into the US market. Those had the flaw of having mechanical water pumps that were prone to fail. The next generation s/c's had electric water pumps. I don't exactly why, but they made less power. The 550HP gain first of all was bogus even for the verr first s/c's but for the subsequent s/c, 550HP was TOTALLY OUT OF THE QUESTION. Then came the latest group of s/c's that make even less HP. As it stands now about 380 or so HP to the wheels is probably what one should reasonably expect from a Kleemann s/c without headers, exhaust, and camshafts and smaller s/c pulley. Before the latest group of s/c's one could expect about 400HP to the wheels. The very first ones that came out in 2001 made about 420WHP. These are generalizations based on dyno's I have seen.
.........K&N filters can kill your MAF, but you have no clue what is wrong with the car. Your simple OBD2 scanner is not what you use to tune the car. You are now left holding the bag because you can no longer go to the dealer and the shop that did your install is not a performance shop and cannot tune your car properly. I have been there.
Ted
you are absolutely right, the installer have no idea what type of power the car make, they have no dynometer to tune the car. They only install the part. If I didn't get my car dyno I wouldn't know there was HP missing.
They told me the Stg 2 kit make ~550 Hp at 5800 rpm & ~525 lb/ft from 2000 rpm. i don't think so! i just want a 500hp car that Kleemann claim there Kit make. I'm not even close to that number.
Now they are pointing finger at the K&N filter messing up the MAF sensor. I did remove the K&N and put a new Mass air sensor in to redyno it and it make no different.
Now they are pointing finger at the dyno shops for not know what they are doing. THey say the dynometer might be out of calibration or the type of cooling fan they use. they ask me how many fan and what size fan the dyno shop using. WHat the Hell that have to do with my HP lost!
I have done everything within my wallet to prove to them that it not the MAF sensor or the dyno shops incompetent. $150 per hr on the dyno the bill add up quick. These dyno shop are very well reputable. Carb connection tune all type of car Viper, Z06, STI, Seleen S/C mustang, Supra TT to name a fews you name it they tune it. And Dyno authority owned by FRAME (Foreign Ato Mechanical Engineers) tune & specializing in Mercedes & BMW. They are tuning a TT Lotus right now, and they dyno a Ferrari ENZO at one time. They think they are very competent on what they are doing.
The bottom line is Kleemann and Matrix don't want to admit something they did or design was wrong or do anything about it to correct it. They just want to point finger and now i'm stuck holding the bag.
Last edited by Peter_02AMG; Apr 4, 2008 at 12:30 PM.

Now they are pointing finger at the K&N filter messing up the MAF sensor. I did remove the K&N and put a new Mass air sensor in to redyno it and it make no different.
Now they are pointing finger at the dyno shops for not know what they are doing. THey say the dynometer might be out of calibration or the type of cooling fan they use. they ask me how many fan and what size fan the dyno shop using. WHat the Hell that have to do with my HP lost!
I have done everything within my wallet to prove to them that it not the MAF sensor or the dyno shops incompetent. $150 per hr on the dyno the bill add up quick. These dyno shop are very well reputable. Carb connection tune all type of car Viper, Z06, STI, Seleen S/C mustang, Supra TT to name a fews you name it they tune it. And Dyno authority owned by FRAME (Foreign Ato Mechanical Engineers) tune & specializing in Mercedes & BMW. They are tuning a TT Lotus right now, and they dyno a Ferrari ENZO at one time. They think they are very competent on what they are doing.
The bottom line is Kleemann and Matrix don't want to admit something they did or design was wrong or do anything about it to correct it. They just want to point finger and now i'm stuck holding the bag.
damage that cant be fixed! Keep us posted and best of luck!
Max
They suggest a pinch pulley to pull the belt down so it at least have more grip on the S/C pulley. They show me a Mustang cobra S/C pulley system and the belt wrap the S/C pulley like a U shape not like the Kleemann.
SO right now i think it the S/C belt slipping at high RPM.

They suggest a pinch pulley to pull the belt down so it at least have more grip on the S/C pulley. They show me a Mustang cobra S/C pulley system and the belt wrap the S/C pulley like a U shape not like the Kleemann.
SO right now i think it the S/C belt slipping at high RPM.


.........your pulley configuration is not different from anyone else's with a Kleemann s/c. There is very little contact between the s/c pulley and the belt. There is usually some mild degree of belt slippage which is common and does not really rub that much power. With a smaller s/c pulley, you'll get even more belt slippage, enough to shread your belt. A belt wrap kit is a good idea. No one makes a belt wrap kit for the Kleemann s/c system. Before you spend more big bucks, I honestlty think that your car first needs to be properly tuned. I am not sure how to acheieve this in your particular situation. Your least expensive option might actually be to have car shipped to Colorado and have it tuned. It will cost you less on the long run. I deally, your local Kleemann shop should dyno your car and tune it with the dyno results. They may need to make some further ECU changes from Kleemann, you may need more fual, you may or may not need larger injectors, if your pulleys are not aligned, then they need to be aligned to prevent belt shreading etc. I really think that so called Mb tuners without dyno machines should be reading this thread. it is not enough to simply install performance parts and hand the car over to the owner. Any robot can do that.
Ted
Last edited by Tacjam; Apr 4, 2008 at 04:36 PM.

#1
Were these dyno runs you’ve sent done in 3rd gear?
#2
Were these dyno runs done with both ESP on and off?
#3
How much time did they let the car cool down between dyno runs?
#4
We need pictures of the fans used at CarbConn and FAME to know if the car was getting proper airflow/cooling. Inadequate fans will produce low numbers.
#5
How long ago was CarbConn’s and FAME’s air-fuel meter calibrated? What brand is it?
(The afr readings from CarbConn to FAME vary greatly so someone could have a mis-calibrated sensor. Determining this will help with the data presented).
#6
Why was CarbConn’s boost reading 1.9psi stock and 8.45psi w/ the Kleemann kit?
From what you’ve stated the car is making 5.5psi so it’s making proper boost. Depending on what gear they’re dynoing in, boost may fall off.

#1
Were these dyno runs you’ve sent done in 3rd gear?
#2
Were these dyno runs done with both ESP on and off?
#3
How much time did they let the car cool down between dyno runs?
#4
We need pictures of the fans used at CarbConn and FAME to know if the car was getting proper airflow/cooling. Inadequate fans will produce low numbers.
#5
How long ago was CarbConn’s and FAME’s air-fuel meter calibrated? What brand is it?
(The afr readings from CarbConn to FAME vary greatly so someone could have a mis-calibrated sensor. Determining this will help with the data presented).
#6
Why was CarbConn’s boost reading 1.9psi stock and 8.45psi w/ the Kleemann kit?
From what you’ve stated the car is making 5.5psi so it’s making proper boost. Depending on what gear they’re dynoing in, boost may fall off.
............how the car is dynoed does matter. The point is the Kleemann installer should freaking dyno the car himself!!!!!!!!!! It is a very common tactic for one mechanic to blame the other and in the meantime you, the car owner is the one screwed. No self respecting Mustang tuner will place a supercharger in a Ford Mustang and fail to perform a dyno. Mb tuners are perfectly happy to hand the car back to you, without dyno, without tuning...... because they think you have a big enough wallet to deal with the consequences.
........as a separate matter, with the new s/c's 500-550HP from what I have gathered is out of the question. Still your car needs to be properly tuned to maximize the power and make sure it is safe.
Ted




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........as a separate matter, with the new s/c's 500-550HP from what I have gathered is out of the question. Still your car needs to be properly tuned to maximize the power and make sure it is safe.
Ted
To the OP. You should not be getting belt fray. That indicates a misaligned pulley, not belt slip. Trust me, i've dealt with a 20psi blown mustang for 4 years, and it really depends on how straight the pullies are. They can not be off my thousands of an inch. I went through about 4 belts before getting this right.
fwiw, the surging you are getting could be due to egr activity, a misadjusted bypass, or some sort of timing snafu. Oh, and your boost loss could also be due to a leaking bypass.
To the OP. You should not be getting belt fray. That indicates a misaligned pulley, not belt slip. Trust me, i've dealt with a 20psi blown mustang for 4 years, and it really depends on how straight the pullies are. They can not be off my thousands of an inch. I went through about 4 belts before getting this right.
fwiw, the surging you are getting could be due to egr activity, a misadjusted bypass, or some sort of timing snafu. Oh, and your boost loss could also be due to a leaking bypass.
.....not really sure what your point is. Saying that his car should be properly tuned n dyno has nothing to do with saying that the car cannot be properly tuned on the street. With all due respect, your mustang does not have CANBUS. Tuning a mercedes newer than 2001 really requires that you a Star diagnosis computer. This is because of all the different modules that communicate via CANBUS. WE both agree that his car needs to be properly tuned. Unfortunately with a Merceds, you need a Star diagnosis computer. You can tune it on a dyno with star or tune it on the street with star. That part is irrelevant. You cannot even get most of these so called MB tuners/vendors to even test drive your car after they finish working on it. Expecting them to drive around on the street with your car and a computer as they tune it is out of the question. If they had an in house dyno, they could at least tune it on the dyno. I have seen tuners for STI's, Mustangs, Supra's etc come to the drag strip with their customers's cars and tune them at the dragstrip. With MB vendors and tuners, they will rather die first before they do that. It is a shame. It is just not the same level of service.
..........Your post highlights part of the problem. You have listed a bunch things including EGR malfunction that could be wroong with his car. everyone comes and lists addtional things they think could be wrong based on their experiences with their own cars, BMW's mustangs, STI's and even some MB's. Everyone means well. But I can tell you, having been this situation before, it only adds to the confusion.............and the incredible waste of money that results if you start chasing what everyone says. THE CAR NEEDS TO BE TUNED BY THE THE APPARENT IDIOT THAT INSTALLED THE SUPERCHARGER AND HANDED THECAR BACK TO HIM, AS IF HE HAD JUST INSTALLED BRAKE PADS.
Ted
Last edited by Ted Baldwin; Apr 6, 2008 at 04:32 PM.
P.S., an internal combustion engine doesn't care what emblem is on the hood. All it knows is ignition timing, intake temps, coolant temps, air, fuel, and compression. It doesn't matter if its canbus or not. Therefore, experience with other ohc v8s with a supercharger is somewhat relevant.
P.S., an internal combustion engine doesn't care what emblem is on the hood. All it knows is ignition timing, intake temps, coolant temps, air, fuel, and compression. It doesn't matter if its canbus or not. Therefore, experience with other ohc v8s with a supercharger is somewhat relevant.
..........Your other point about adjusting timming, intake temps etc in a post 2001 Mercedes without DAS, I'll just chuck up to your lack of information about these cars. The issue is not the knowledge of what parameters to adjust. Everyone knows that. The issue is HOW to adjust these parameters in the post CANBUS world. Before you fall for the trap............no, piggy back engine computer you used will not work here.
Ted
Last edited by Ted Baldwin; Apr 6, 2008 at 09:41 PM.
.......The 360WHP you are making is probably not that much less than you are going to make. The most powerful Kleemann s/c's were the very first ones they introduced in 2001 into the US market. Those had the flaw of having mechanical water pumps that were prone to fail. The next generation s/c's had electric water pumps. I don't exactly why, but they made less power. The 550HP gain first of all was bogus even for the verr first s/c's but for the subsequent s/c, 550HP was TOTALLY OUT OF THE QUESTION. Then came the latest group of s/c's that make even less HP. As it stands now about 380 or so HP to the wheels is probably what one should reasonably expect from a Kleemann s/c without headers, exhaust, and camshafts and smaller s/c pulley. Before the latest group of s/c's one could expect about 400HP to the wheels. The very first ones that came out in 2001 made about 420WHP. These are generalizations based on dyno's I have seen....
Ted






