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Old 03-19-2017, 01:20 PM
  #201  
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Originally Posted by chrisridebike8 View Post
Incorrect. P30 was discontinued after 2009 and was replaced by the P31 in 2010. In some countries (can't remember which), they continued to call it P30 but the items in the package changed to what you have listed as P30/31. In the US, P30 was 2008/9 and P31 was 2010+ with all suspension components being the same and the engine internals changing.
I stand corrected. I thought P30/P31 were tied to non-FL and FL models accordingly.

Learned something new today
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Old 03-19-2017, 05:06 PM
  #202  
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2012 C63;1971 280SE 3.5(Sold);2003 1500 HD Silverado;2015 GLA 250 (wife's)
The changeover from P30 to P31 in NA took place during the 2010 MY during Mid-December 2009 build dates.
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Old 03-22-2017, 01:13 PM
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I go to the Dyno today to get the base of the car. 385/393/393 whp. The first time I donīt push the gas at 100%. Mine first time at a dyno ever.
Car is ī08 C63 with 146k milles, Eurotunning v5, sec cat delete, EC X-pipe, running 97 octane gas.
I am waiting for the ethanol kit from Dave and going to share results. Good thing is am from Paraguay and we have E98 at almost any gas station here, is going to be easy to run with a 70/80% ethanol all the time.


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Old 03-22-2017, 09:20 PM
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W212 - E63 AMG
Strong base numbers for the mods on a Mustang Dyno.

Keep us updated on progress.
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Old 03-22-2017, 09:28 PM
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Originally Posted by chrisridebike8 View Post
Incorrect. P30 was discontinued after 2009 and was replaced by the P31 in 2010. In some countries (can't remember which), they continued to call it P30 but the items in the package changed to what you have listed as P30/31. In the US, P30 was 2008/9 and P31 was 2010+ with all suspension components being the same and the engine internals changing.
I do wish that they would have offered the lighter rotating assembly to those that paid for the P31 package on the other 63 models (like my W212 ) from 2010 onwards also.

Pretty sure for my car all it is, is an LSD and upgraded struts
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Old 03-22-2017, 10:32 PM
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Originally Posted by Celicasaur View Post
I do wish that they would have offered the lighter rotating assembly to those that paid for the P31 package on the other 63 models (like my W212 ) from 2010 onwards also.

Pretty sure for my car all it is, is an LSD and upgraded struts
I don't remember if it's lighter or not. Stronger, yes due to parts being forged. But I can't remember if they are actually lighter. Someone else can maybe chime in.
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Old 03-22-2017, 11:16 PM
  #207  
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Anyone running this on the Black Series?
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Old 03-23-2017, 07:18 AM
  #208  
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Originally Posted by wheelz View Post
Anyone running this on the Black Series?
Why? There's no difference whatsoever in this particular instance.
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Old 03-23-2017, 01:46 PM
  #209  
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Originally Posted by wheelz View Post
Anyone running this on the Black Series?
The one NA car that had higher numbers than mine was at the Dyno day was a 2012 Black Series and he put up 515rwhp and I think his mods were just full Weistec exhaust setup with no cats and row air boxes. I think with the kit he may hit 600hp.
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Old 03-23-2017, 05:38 PM
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2015 C63s Sedan
He made 75whp more with the e85 kit, with no other changes?
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Old 03-23-2017, 07:54 PM
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My BS made 530 HP and 440 Torque with Frequency Intelligent LT Headers, Row AirBoxes and V6 tune.
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Old 03-23-2017, 08:00 PM
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2012 P31 C63 Coupe Trackrat, 2015 GLK350
Originally Posted by wheelz View Post
My BS made 530 HP and 440 Torque with Frequency Intelligent LT Headers, Row AirBoxes and V6 tune.
https://mbworld.org/forums/c63-amg-w...ml#post7033657

465.7whp

Anyway, what does that have to do with this thread
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Old 03-23-2017, 08:22 PM
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2012 P31 C63 Coupe Trackrat, 2015 GLK350
Originally Posted by CaptnCharisma View Post
The one NA car that had higher numbers than mine was at the Dyno day was a 2012 Black Series and he put up 515rwhp and I think his mods were just full Weistec exhaust setup with no cats and row air boxes. I think with the kit he may hit 600hp.
This just perfectly demonstrates that dyno numbers are totally worthless.

I'm sorry, but no C63 - BS, P31, or otherwise - is making 515whp with just an exhaust and ROW airboxes. It's impossible.
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Old 03-23-2017, 08:57 PM
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DYNO figures dont mean crap
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Old 03-23-2017, 09:08 PM
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Originally Posted by mr747 View Post
DYNO figures dont mean crap
not true at all they only don't mean anything if you compare my dyno to your dyno. Diff dyno location day temp ect ect. It is there to show gains. Also gives idea of a normal range like a tuned c63 tune only normally is around 410 to 430 dyno jet. Just a range that's all. Mostly for comparing gains of mods only though.
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Old 03-23-2017, 09:09 PM
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Originally Posted by AMGonFire View Post
not true at all they only don't mean anything if you compare my dyno to your dyno. Diff dyno location day temp ect ect. It is there to show gains. Also gives idea of a normal range like a tuned c63 tune only normally is around 410 to 430 dyno jet. Just a range that's all. Mostly for comparing gains of mods only though.
even using the same dyno you can fudge figures by ramping up and down and side to side
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Old 03-23-2017, 09:19 PM
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Originally Posted by wheelz View Post
My BS made 530 HP and 440 Torque with Frequency Intelligent LT Headers, Row AirBoxes and V6 tune.
How come with mods the HP always goes up a ton but the torque doesn't? Is it because opening up the exhaust for more power comes at the expense of low-end torque?
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Old 03-23-2017, 09:43 PM
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Originally Posted by dlowery21 View Post
How come with mods the HP always goes up a ton but the torque doesn't? Is it because opening up the exhaust for more power comes at the expense of low-end torque?
http://mechanics.stackexchange.com/q...et-at-5252-rpm
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Old 03-23-2017, 09:53 PM
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2013 C63 P31, V5 tune
That sort of answers my question, but not really. That answers the question as to why torque is calculated at lower RPMs compared to horsepower. My question was this - how come with the mods, torque and horsepower increase disproportionately when they are both calculated @ max value (RPM shouldn't matter). Stock that car is 510hp and 457tq so 90% tq/hp (457/510) but after mods it's only 83% (440/530). Why after modding do we lose like 10% of that ratio? Is it because most mods increase airflow and decrease backpressure leading to an increase in high end HP and decrease in tq? I'm sorry if I'm asking as silly question, I'm pretty new to this stuff. Thanks!
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Old 03-23-2017, 09:56 PM
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Originally Posted by mr747 View Post
even using the same dyno you can fudge figures by ramping up and down and side to side
Are you talking correction factor? If the dyno is setup the same from pull to pull it does the job it needs to shows gains or losses of mods. It it was worthless it wouldn't be Around. I disagree with you.
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Old 03-23-2017, 10:13 PM
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CaptNCarisma stated I put down 515 at the dyno day we had, I just correctly put down my numbers.

Originally Posted by BLKROKT View Post
https://mbworld.org/forums/c63-amg-w...ml#post7033657

465.7whp

Anyway, what does that have to do with this thread
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Old 03-23-2017, 10:47 PM
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Originally Posted by AMGonFire View Post
Are you talking correction factor? If the dyno is setup the same from pull to pull it does the job it needs to shows gains or losses of mods. It it was worthless it wouldn't be Around. I disagree with you.
Even strapping it down or loosing the straps it will show a different figure its just how it is
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Old 04-14-2017, 10:58 PM
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Originally Posted by dlowery21 View Post
That sort of answers my question, but not really. That answers the question as to why torque is calculated at lower RPMs compared to horsepower. My question was this - how come with the mods, torque and horsepower increase disproportionately when they are both calculated @ max value (RPM shouldn't matter). Stock that car is 510hp and 457tq so 90% tq/hp (457/510) but after mods it's only 83% (440/530). Why after modding do we lose like 10% of that ratio? Is it because most mods increase airflow and decrease backpressure leading to an increase in high end HP and decrease in tq? I'm sorry if I'm asking as silly question, I'm pretty new to this stuff. Thanks!
Yes it's true. The more you open up your exhaust the more HP youll get vs torque. It has to do with the back pressure.
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Old 04-15-2017, 12:07 AM
  #224  
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Originally Posted by Mag1c Carp3t View Post
Yes it's true. The more you open up your exhaust the more HP youll get vs torque. It has to do with the back pressure.
In the interest of clarity, the above statement needs some qualification.
That is; a full open exhaust, like with four individual straight pipes from the heads into the atmosphere, will not produce as much power or torque as a well designed and tuned-length set of headers with a good collector. Good scavenging can make a huge difference.

A few years back I designed these which netted an 11hp/10tq gain over the previous design for a V8-Supercar team (5.0 ltr). The tubes were smaller in diameter than previous versions.
In previous years, the V8-Supercar series run E85.


https://*******/photos/nnNQpXHsHnYRPsFW6

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Old 04-16-2017, 10:22 PM
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So late on this but I finally took the time to get files off my phone...
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