P31 vs OE Tune: What's in it for You?
07-13-2015, 12:01 PM
#1
P31 vs OE Tune: What's in it for You?
P31 is an option some C63 AMG die-hards look for, but is it worth it over an OE tune?
Read the rest on the MBWorld homepage. >>
07-13-2015, 01:17 PM
#2
MBWorld Fanatic!
Join Date: Jun 2008
Location: Los Angeles
Posts: 8,044
Received 2,810 Likes
on
1,664 Posts
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
What a retarded and short-sighted article. I really question the knowledge of MBWorld writers when I see something like this. The point of the P31 is not the tune on it. Of course a EC/OE/MHP/Weistec/Renntech/etc tune will pull on a stock P31. The point of the package is that you get the stronger and lighter SLS internals. For anyone going for a big build, or long-term reliability on a hard-driven car, it's practically a must IMO.
07-14-2015, 01:43 PM
#4
SPONSOR
Join Date: Dec 2010
Location: Santa Ana, CA
Posts: 5,696
Received 130 Likes
on
114 Posts
OE Tuning C63 AMG
P31 is an option some C63 AMG die-hards look for, but is it worth it over an OE tune?
Read the rest on the MBWorld homepage. >>
07-15-2015, 12:53 AM
#5
MBWorld Fanatic!
Join Date: Jan 2013
Location: Toronto, Canada
Posts: 3,684
Received 761 Likes
on
527 Posts
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
The first two replies are spot-on.
Besides, just because you can get more power out of a given engine it doesn't mean that it comes without sacrifices. Back in 1986, the 1.5L, in-line 4 cylinder BMW M12/13 engine in the Benetton B186 produced around 1,500 hp - but it lasted for only one lap before both it and the transmission turned into a heap of molten and shattered metal. Detuned to 1,100 hp, it could last for a 30 lap practice session. To get the full race distance of 60 laps before it self-destructed, they had to further detune it down to about 850-900 hp.
So - while the tune may make the car faster, it is neither without consequences on the longevity and reliability of the motor nor irrelevant whether the engine internals are made from weaker cast or stronger forged steel, or for that matter how much they weigh as the savings in reciprocating mass with the P31 package amount to about 7 lbs if I remember correctly.
Besides, just because you can get more power out of a given engine it doesn't mean that it comes without sacrifices. Back in 1986, the 1.5L, in-line 4 cylinder BMW M12/13 engine in the Benetton B186 produced around 1,500 hp - but it lasted for only one lap before both it and the transmission turned into a heap of molten and shattered metal. Detuned to 1,100 hp, it could last for a 30 lap practice session. To get the full race distance of 60 laps before it self-destructed, they had to further detune it down to about 850-900 hp.
So - while the tune may make the car faster, it is neither without consequences on the longevity and reliability of the motor nor irrelevant whether the engine internals are made from weaker cast or stronger forged steel, or for that matter how much they weigh as the savings in reciprocating mass with the P31 package amount to about 7 lbs if I remember correctly.
07-15-2015, 12:44 PM
#6
Member
What a retarded and short-sighted article. I really question the knowledge of MBWorld writers when I see something like this. The point of the P31 is not the tune on it. Of course a EC/OE/MHP/Weistec/Renntech/etc tune will pull on a stock P31. The point of the package is that you get the stronger and lighter SLS internals. For anyone going for a big build, or long-term reliability on a hard-driven car, it's practically a must IMO.
