Validation Dyno results
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Validation Dyno results
I had my car independently dyno'd by DynoComp to validate Vadim's dyno of 427rwhp and running mid 12 AFRs.
The rwhp turned out pretty close as you can see from the charts attached given the Dyno Dynamics read lower than Dynojets. It looks like the ECU adapted a bit after I drove it to AZ and now the AFR reads a bit richer and dips into the 11s. The boost was also validated at 6psi on both dynos.
I was dissapointed with the power but knew that the voltage clamp for the MAF was a major reason as the top end power was restricted plus the fact that the engine compression was lowered from 11.4 to 1 down to 9.0 to 1. The boost also dropped from 8.3psi to only 6.0psi due to the bigger TB, intake mod and ported heads and SC inlet/outlets.
Now the big decision is who should I choose to pump up the volume to 14psi. Both DynoComp and Evosport have assured me they can do it tune for the the larger injectors and bigger fuel pump. I've been told by them that 500+rwhp has been achieved in the past by both tuners on the NA 55 platform.
I think that should be enough power to push me into the mid 10's provided the car sheds a few more lbs, gets a shot of meth and I learn to launch the car better.
The rwhp turned out pretty close as you can see from the charts attached given the Dyno Dynamics read lower than Dynojets. It looks like the ECU adapted a bit after I drove it to AZ and now the AFR reads a bit richer and dips into the 11s. The boost was also validated at 6psi on both dynos.
I was dissapointed with the power but knew that the voltage clamp for the MAF was a major reason as the top end power was restricted plus the fact that the engine compression was lowered from 11.4 to 1 down to 9.0 to 1. The boost also dropped from 8.3psi to only 6.0psi due to the bigger TB, intake mod and ported heads and SC inlet/outlets.
Now the big decision is who should I choose to pump up the volume to 14psi. Both DynoComp and Evosport have assured me they can do it tune for the the larger injectors and bigger fuel pump. I've been told by them that 500+rwhp has been achieved in the past by both tuners on the NA 55 platform.
I think that should be enough power to push me into the mid 10's provided the car sheds a few more lbs, gets a shot of meth and I learn to launch the car better.
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From: Philadelphia, PA
2008 A8L, 2002 996TT X50, 2009 X5
I had my car independently dyno'd by DynoComp to validate Vadim's dyno of 427rwhp and running mid 12 AFRs.
The rwhp turned out pretty close as you can see from the charts attached given the Dyno Dynamics read lower than Dynojets. It looks like the ECU adapted a bit after I drove it to AZ and now the AFR reads a bit richer and dips into the 11s. The boost was also validated at 6psi on both dynos.
I was dissapointed with the power but knew that the voltage clamp for the MAF was a major reason as the top end power was restricted plus the fact that the engine compression was lowered from 11.4 to 1 down to 9.0 to 1. The boost also dropped from 8.3psi to only 6.0psi due to the bigger TB, intake mod and ported heads and SC inlet/outlets.
Now the big decision is who should I choose to pump up the volume to 14psi. Both DynoComp and Evosport have assured me they can do it tune for the the larger injectors and bigger fuel pump. I've been told by them that 500+rwhp has been achieved in the past by both tuners on the NA 55 platform.
I think that should be enough power to push me into the mid 10's provided the car sheds a few more lbs, gets a shot of meth and I learn to launch the car better.
The rwhp turned out pretty close as you can see from the charts attached given the Dyno Dynamics read lower than Dynojets. It looks like the ECU adapted a bit after I drove it to AZ and now the AFR reads a bit richer and dips into the 11s. The boost was also validated at 6psi on both dynos.
I was dissapointed with the power but knew that the voltage clamp for the MAF was a major reason as the top end power was restricted plus the fact that the engine compression was lowered from 11.4 to 1 down to 9.0 to 1. The boost also dropped from 8.3psi to only 6.0psi due to the bigger TB, intake mod and ported heads and SC inlet/outlets.
Now the big decision is who should I choose to pump up the volume to 14psi. Both DynoComp and Evosport have assured me they can do it tune for the the larger injectors and bigger fuel pump. I've been told by them that 500+rwhp has been achieved in the past by both tuners on the NA 55 platform.
I think that should be enough power to push me into the mid 10's provided the car sheds a few more lbs, gets a shot of meth and I learn to launch the car better.
In the second graph, what's the difference between the two dyno runs (looks to be runs 4 and 5)? You pick up 25-30 rwtq and 10-20 rwhp throughout the entire powerband - what mods were changed?
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
He just decided to run it in 4th on the last run. Rich@DynoComp made six consecutive pulls one right after another and the final pull was in 4th gear because I was curious and asked him to do it.
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From: Philadelphia, PA
2008 A8L, 2002 996TT X50, 2009 X5
So the rest were in 3rd gear I presume?
Were the results of the 4th gear pull higher or lower than the 3rd gear runs? Hard to tell what's going on, since it's not really spelled out, and the graphs are B&W.
Were the results of the 4th gear pull higher or lower than the 3rd gear runs? Hard to tell what's going on, since it's not really spelled out, and the graphs are B&W.
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
There is still an ongoing debate about which gear to run dynos in although I always hear that 4th gear is 1 to 1 gear ratio.
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From: Philadelphia, PA
2008 A8L, 2002 996TT X50, 2009 X5
4th is the 1:1 ratio for the 5 speed AMGs, so since you were able to get a full "pre" 4th gear run in, I'd use that one myself for your "baseline". And, once your tuner has optimized everything, grab a 4th gear run of that for comparison.
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Well, your findings are excellent support to the advice I give re: dynos - be consistent. Meaning, don't do a 3rd gear "pre" run, and compare it to a 4th gear "post" run, or vice versa, since you won't be able to draw any definitive conclusions.
4th is the 1:1 ratio for the 5 speed AMGs, so since you were able to get a full "pre" 4th gear run in, I'd use that one myself for your "baseline". And, once your tuner has optimized everything, grab a 4th gear run of that for comparison.
4th is the 1:1 ratio for the 5 speed AMGs, so since you were able to get a full "pre" 4th gear run in, I'd use that one myself for your "baseline". And, once your tuner has optimized everything, grab a 4th gear run of that for comparison.
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Thread Starter
MBWorld Fanatic!
Joined: Dec 2005
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
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From: California
06 C55, 09 E350
Just have dynocomp do the tune, they did fine with hooleys car and it's already there. Evosport uses powerchip anyways and you were having a problem with them in the past were you not?
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
yes that's right. Evosport is proposing an alternate tuner or a piggy-back solution using an AEM FIC unit.
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
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2005 Pontiac GTO 6.0 LS2 - Blue
Just have dynocomp do the tune, they did fine with hooleys car and it's already there.
Thread Starter
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Tough choice but a choice will be made soon.
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From: Valley of the Sun, Arizona
C63, SL55, E55, CLS55, ML63, C55
me so many time with good ol' know how. He's really the reason my car was what it was.
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02 C32 AMG
Out Of Control!!
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haters crazy
Out Of Control!!
Joined: Feb 2003
Posts: 13,489
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haters crazy
I'm pretty sure my car makes over 500whp now
Thread Starter
MBWorld Fanatic!
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Edit: Just found the link....https://mbworld.org/forums/clk-class...-pictures.html and a later thread started by him https://mbworld.org/forums/clk55-amg...ack-rides.html
Last edited by AMGSC; Mar 29, 2010 at 08:48 PM.
Former Vendor of MBWorld
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From: Valley of the Sun, Arizona
C63, SL55, E55, CLS55, ML63, C55
I bet you could get 500whp out of the NA 55 platform. You wouldn't be NA any more though.
I would like to think I was kinda close to the limit for this the C55. I guess I could have put on an 82mm TB and maybe 1lb or boost more. That might have done the trick. Then again there is only so much air you are going to fit into the combustion chamber on an NA 55 platform, before you start crushing pistons and what not.
If I didnt F my car up. I would have tried. I had plans to port the heads. But that obviously isn't going to happen. I think with boosted cars, head flow is where the power is. It would be interesting to see what Stock vs ported flow CFM wise. Im sure that data is here some place but I dont feel like searching
I would like to think I was kinda close to the limit for this the C55. I guess I could have put on an 82mm TB and maybe 1lb or boost more. That might have done the trick. Then again there is only so much air you are going to fit into the combustion chamber on an NA 55 platform, before you start crushing pistons and what not.
If I didnt F my car up
. I would have tried. I had plans to port the heads. But that obviously isn't going to happen. I think with boosted cars, head flow is where the power is. It would be interesting to see what Stock vs ported flow CFM wise. Im sure that data is here some place but I dont feel like searching
Thread Starter
MBWorld Fanatic!
Joined: Dec 2005
Posts: 2,347
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From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
I bet you could get 500whp out of the NA 55 platform. You wouldn't be NA any more though.
I would like to think I was kinda close to the limit for this the C55. I guess I could have put on an 82mm TB and maybe 1lb or boost more. That might have done the trick. Then again there is only so much air you are going to fit into the combustion chamber on an NA 55 platform, before you start crushing pistons and what not.
If I didnt F my car up. I would have tried. I had plans to port the heads. But that obviously isn't going to happen. I think with boosted cars, head flow is where the power is. It would be interesting to see what Stock vs ported flow CFM wise. Im sure that data is here some place but I dont feel like searching
I would like to think I was kinda close to the limit for this the C55. I guess I could have put on an 82mm TB and maybe 1lb or boost more. That might have done the trick. Then again there is only so much air you are going to fit into the combustion chamber on an NA 55 platform, before you start crushing pistons and what not.
If I didnt F my car up
. I would have tried. I had plans to port the heads. But that obviously isn't going to happen. I think with boosted cars, head flow is where the power is. It would be interesting to see what Stock vs ported flow CFM wise. Im sure that data is here some place but I dont feel like searching
