Drivetrain loss ?
08-27-2015, 09:08 AM
#1
Junior Member
Thread Starter
Join Date: May 2011
Location: Montreal
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
C43 AMG CAB & VIPER
Drivetrain loss ?
Hi Everyone,
Yesterday I put my C63amg (2011) non Perf pack on the dyno for fun.
All I have on it is a Eurocharged V3 tune.
The WHP came out exactly as eurocharged claimed (399hp at the wheels and 349 torque). and I noticed the difference from stock immediately after the tune.
On their site they mention the stock WHP is about 330-335.
I never really paid attention to the numbers but I'm curious to know if this is actually true because it seems like a rather high drivetrain loss if the STOCK crank 451hp becomes 330 at the wheels and the claimed eurocharged 540HP crank becomes 399 at the wheels. (a little over 25% drive train loss, I may be calculating it wrong).
Can someone enlighten me on this one ?
Thanks in advance !
Eric
Yesterday I put my C63amg (2011) non Perf pack on the dyno for fun.
All I have on it is a Eurocharged V3 tune.
The WHP came out exactly as eurocharged claimed (399hp at the wheels and 349 torque). and I noticed the difference from stock immediately after the tune.
On their site they mention the stock WHP is about 330-335.
I never really paid attention to the numbers but I'm curious to know if this is actually true because it seems like a rather high drivetrain loss if the STOCK crank 451hp becomes 330 at the wheels and the claimed eurocharged 540HP crank becomes 399 at the wheels. (a little over 25% drive train loss, I may be calculating it wrong).
Can someone enlighten me on this one ?
Thanks in advance !
Eric
08-27-2015, 09:18 AM
#2
MBWorld Fanatic!
I think most people use 15-18% loss. It also depends on what dyno you use. Mustang dynos tend to read lower. I think 360 whp is what many people make stock. I made 425 whp on a dynojet. With 18% loss, thats about 520 bhp. I think 540 bhp is a bit optomistic.
08-27-2015, 09:45 AM
#3
MBWorld Fanatic!
Join Date: Nov 2014
Location: Olathe, KS
Posts: 2,532
Received 396 Likes
on
275 Posts
'13 C63 AMG P31
Dynos are very picky and should only be taken as a rough estimate. It depends where you live, elevation, humidity, type of dyno, what you had for breakfast and whether you happened to breathe during the test or not....
08-27-2015, 12:58 PM
#6
Junior Member
Thread Starter
Join Date: May 2011
Location: Montreal
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
C43 AMG CAB & VIPER
Hi INS1GNIA,
Yes I'm aweare they upgrade free but since they are really far from where I am, I need to pull the ECU ahd ship it back and forth which is costly (from Canada to Texas and back), takes about 4-5 days even with UPS express and costs about $300.
I never really knew it it was worth it to do it.
I'll give them a call ans ask about the c urrent version, maybe they can send me a handheld unit to do the flash myself here.
Thanks for reminding me.
Yes I'm aweare they upgrade free but since they are really far from where I am, I need to pull the ECU ahd ship it back and forth which is costly (from Canada to Texas and back), takes about 4-5 days even with UPS express and costs about $300.
I never really knew it it was worth it to do it.
I'll give them a call ans ask about the c urrent version, maybe they can send me a handheld unit to do the flash myself here.
Thanks for reminding me.
