Total disapointment at the dyno with my S65
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Joined: Feb 2020
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S65
Total disapointment at the dyno with my S65
Yesterday night we took the S65 to the Dyno to see the real numbers after installing Kleemann Stage 3 tune, a bigger pump for the intercoolers, high flow air filters, cat delete and Quaife LSD with hopes to see at least 600+hp and my hopes went crashing down in the first pass.
The first pas was in manual and it barely passed 400hp doing 438 @ 12psi and shuting down at 5k rpm. 15 minutes later we tried again but in automatic amd it went up to 458 but still only 12psi and again shutting down at 5k rpms.
We scaned it and all was good so tried again in auto to a disapointing 406 with the same 12 psi and 5k rpms.
There was stock C63s, another with Eurocharged tune and an E55 with a Rentech tune and even the stock C63 was 10 hp over my cars numbers.
I wrote to Kleemann and send them the graphs, but its unacceptable to invest in a tune and find out it's not even close to stock numbers and be ambarrased by 3 other AMG owners bragging over the sinking ot "The Titanic", any sugestions are welcomed.
The first pas was in manual and it barely passed 400hp doing 438 @ 12psi and shuting down at 5k rpm. 15 minutes later we tried again but in automatic amd it went up to 458 but still only 12psi and again shutting down at 5k rpms.
We scaned it and all was good so tried again in auto to a disapointing 406 with the same 12 psi and 5k rpms.
There was stock C63s, another with Eurocharged tune and an E55 with a Rentech tune and even the stock C63 was 10 hp over my cars numbers.
I wrote to Kleemann and send them the graphs, but its unacceptable to invest in a tune and find out it's not even close to stock numbers and be ambarrased by 3 other AMG owners bragging over the sinking ot "The Titanic", any sugestions are welcomed.
Last edited by MBTION; Jul 12, 2020 at 06:44 AM.
Thread Starter
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Joined: Feb 2020
Posts: 72
Likes: 5
S65
We are taking it to the shop on monday, but it seems to be something in the tune. In the last auto pass once it hit 406hp in third, it went down and then peaked to 406 again in 4th.
At last I tried to max the speed and shutted down at 155.
The dyno owner told me that from the first pass he noticed it was just shutting down and the throttle body was closing very early.
Yesterday night we took the S65 to the Dyno to see the real numbers after installing Kleemann Stage 3 tune, a bigger pump for the intercoolers, high flow air filters, cat delete and Quaife LSD with hopes to see at least 600+hp and my hopes went crashing down in the first pass.
The first pas was in manual and it barely passed 400hp doing 438 @ 12psi and shuting down at 5k rpm. 15 minutes later we tried again but in automatic amd it went up to 458 but still only 12psi and again shutting down at 5k rpms.
We scaned it and all was good so tried again in auto to a disapointing 406 with the same 12 psi and 5k rpms.
There was stock C63s, another with Eurocharged tune and an E55 with a Rentech tune and even the stock C63 was 10 hp over my cars numbers.
I wrote to Kleemann and send them the graphs, but its unacceptable to invest in a tune and find out it's not even close to stock numbers and be ambarrased by 3 other AMG owners bragging over the sinking ot "The Titanic", any sugestions are welcomed.
The first pas was in manual and it barely passed 400hp doing 438 @ 12psi and shuting down at 5k rpm. 15 minutes later we tried again but in automatic amd it went up to 458 but still only 12psi and again shutting down at 5k rpms.
We scaned it and all was good so tried again in auto to a disapointing 406 with the same 12 psi and 5k rpms.
There was stock C63s, another with Eurocharged tune and an E55 with a Rentech tune and even the stock C63 was 10 hp over my cars numbers.
I wrote to Kleemann and send them the graphs, but its unacceptable to invest in a tune and find out it's not even close to stock numbers and be ambarrased by 3 other AMG owners bragging over the sinking ot "The Titanic", any sugestions are welcomed.
I hit 34 psi with water/meth
https://mbworld.org/forums/m275-v12-...hanol-kit.html
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Don't you feel the loss of power after the tunes? If not then perhaps your car has problems before the tune or after works were done to the car before the tune. A third of hp loss is quite a bit and you should have noticed it. No?
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From: Phoenix
222 S-65
OP... Most tuners remove the speed limiter as part of the 'software package.'
That it is closing the throttle body implies that engine management is attempting to save the engine from something. Limp mode does this.
Time for real diagnostic work to be performed.
That it is closing the throttle body implies that engine management is attempting to save the engine from something. Limp mode does this.
Time for real diagnostic work to be performed.
Thread Starter
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S65
Last edited by MBTION; Jul 12, 2020 at 03:19 PM.
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don't forget that hot intake air = no boost
No idea of how they put the file on your ecu but there can be a mistake there too your cas has 2 maps ( 2 x 29f400) maybe they messed up and programmed one only
then one map on one one map on the other side and the engine goes nuts who knows
then if you want to see if your car sucks, replace the maps and firm to stock and dyno it again
consider adding water/meth it changed my life
No idea of how they put the file on your ecu but there can be a mistake there too your cas has 2 maps ( 2 x 29f400) maybe they messed up and programmed one only
then one map on one one map on the other side and the engine goes nuts who knows
then if you want to see if your car sucks, replace the maps and firm to stock and dyno it again
consider adding water/meth it changed my life
Thread Starter
Junior Member
Joined: Feb 2020
Posts: 72
Likes: 5
S65
don't forget that hot intake air = no boost
No idea of how they put the file on your ecu but there can be a mistake there too your cas has 2 maps ( 2 x 29f400) maybe they messed up and programmed one only
then one map on one one map on the other side and the engine goes nuts who knows
then if you want to see if your car sucks, replace the maps and firm to stock and dyno it again
consider adding water/meth it changed my life
No idea of how they put the file on your ecu but there can be a mistake there too your cas has 2 maps ( 2 x 29f400) maybe they messed up and programmed one only
then one map on one one map on the other side and the engine goes nuts who knows
then if you want to see if your car sucks, replace the maps and firm to stock and dyno it again
consider adding water/meth it changed my life
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,264
Likes: 366
'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
That’s a bad tune. Stock does better. Set a baseline with stock, which will isolate whether it’s the car or the tune. Plenty of stock dyno reads around for these.
GL
maw
GL
maw
they don't have bad tunes
the writing might be faulty or a file mistake or car has a problem
I support Kleemann
MBWorld Fanatic!
Joined: Apr 2009
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'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
maw
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,264
Likes: 366
'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
