GOLFMK8
GOLFMK7
GOLFMK6
GOLFMKV
VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com



Go Back   VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com > Volkswagen GTI / Golf Topics > VW Golf R Forum


Reply
 
Thread Tools Search this Thread Display Modes
Old 04-18-2012, 10:16 AM   #15
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
Quote:
Originally Posted by grambles423 View Post
I'm all over this. Arin, is this APR's car or someone who works there?
It's BFG's and APR's car. : )
Arin@APR is offline   Reply With Quote
Old 04-18-2012, 05:42 PM   #16
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
First thing's first, we put MaxR on the dyno to collect baseline data.

We use a dynapack all wheel drive dynamometer which removes the wheels and places power absorbers directly to the wheel hubs. Using this method is great for tuning and repeatability. Because the wheels are removed, we don't have to worry about variances between tire pressure, tire grip, wheel/tire weight, tie down strap tension or surface friction on the rollers. No one can change tie down strap tension, wheels or tire pressure to alter the numbers (intentionally or unintentionally) so the results are fairly consistent. There's no calibration required for the rollers either. We don't need to worry about the car jumping off the dyno and you never need a bunch of people to sit on the car to hold it down when dealing with real high power! In the end this creates results which greatly help engineering ensure accuracy between multiple tests.

The Golf R uses a Haldex all wheel drive system that essentially uses a clutch to couple a driveshaft to the rear differential to send power to the rear wheels. It's not mechanically linked all of the time, meaning there isn't always an identical percentage of power delivered to the front or rear wheels. On the road, you could have most of the power sent to the front, while at other times, more may be in the rear. To keep results consistent, it's best to disable this system when dynoing. Furthermore, since we use a dyno that's not mechanically linked (IE, when the front wheels move, there's nothing making the rear wheels move at the same rate) leaving the Haldex system enabled could cause inconsistent results and even damage to the system over time.

When collecting dyno data it's important to compare results using the same dyno, the same setup, and as close to the same conditions as physically possible. In the before test the car will be run in FWD mode and in the after tests the car will be run in FWD mode, meaning the delta, or the difference between stock and modified, will be the same as if the car was compared in AWD mode (If it ran and read correctly in AWD mode, which it doesn't).

The dynapack system also offers a few other advantages for our calibration team. This is a loaded dyno system that allows us to load the engine and hold it at any RPM we choose. This means the Engineers can sit on the dyno all day long testing different calibration variables at different RPM points to see if the change is positive or negative. It's an excellent tuning resource and the Engineers are pleased to have it at their disposal.

So without further ado, here's how MaxR preformed right off the dealership floor!

On average, the MaxR put down to the front wheels 257 ft-lbs of torque and 240 horsepower on 93 Octane (RON+MON)/2 fuel. Estimating drivetrain loss, we believe this to be in the neighborhood of 270 Ft-LBS of torque and horsepower as some torque is lost when transmitted through the transmission. This is very close to what VW rates the Golf R from the factory in Europe with a lower lower octane fuel, so it makes sense to see a little more than VW advertises. Every dyno reads differently so it's normal to see more torque than the factory advertises (They simplify the numbers anyways so their graphs are always straight and smooth).

The North American Golf R is rated lower than the European Golf R, but having access to both vehicles and both ECU's from a calibration and power stand point, they are identical. So don't worry! All of you guys who are still stock are not missing out on any power compared to the Euro Golf R! It's the same.

Here's the dyno chart with power to the front wheels. Our Stage 4 results will be compared to these numbers.

Arin@APR is offline   Reply With Quote
Old 04-18-2012, 07:25 PM   #17
Halvie
Formula 3000 Champion
 
Drives: 2010 Penalty Box
Join Date: Jun 2010
Location: WI
Posts: 4,956
head work being done on the new machines you guys bought?
__________________
Items for sale to buyers in the US only
Halvie is offline   Reply With Quote
Old 04-18-2012, 08:22 PM   #18
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
Quote:
Originally Posted by Halvie View Post
head work being done on the new machines you guys bought?
Yes sir!
Arin@APR is offline   Reply With Quote
Old 04-18-2012, 08:24 PM   #19
Halvie
Formula 3000 Champion
 
Drives: 2010 Penalty Box
Join Date: Jun 2010
Location: WI
Posts: 4,956
Quote:
Originally Posted by Arin@APR View Post
Yes sir!
could be the best thing about this aside from the other thing

glad to hear the head work is coming along
__________________
Items for sale to buyers in the US only
Halvie is offline   Reply With Quote
Old 04-18-2012, 09:23 PM   #20
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
Quote:
Originally Posted by Halvie View Post
could be the best thing about this aside from the other thing

glad to hear the head work is coming along
Wait till you see the quality of the porting and filling of the port guides (unless you already spotted some of it on our facebook page).
Arin@APR is offline   Reply With Quote
Old 04-18-2012, 09:41 PM   #21
J-Cooz
Formula 3000 Driver
 
J-Cooz's Avatar
 
Drives: 2010 Golf Sportline
Join Date: May 2010
Location: Toronto, ON
Posts: 3,593
J-Cooz is offline   Reply With Quote
Old 04-18-2012, 10:31 PM   #22
madmortar
Go Kart Champion
 
Drives: MKV GTI
Join Date: Nov 2011
Location: Virginia Beach
Posts: 38
very cool, subbbbbbed
madmortar is offline   Reply With Quote
Old 04-23-2012, 11:37 AM   #23
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
We just picked our first winner on our facebook page. If your name is Jon and you participated, check out the page for details... you may have a pretty sweet OGIO bag headed your way.
Arin@APR is offline   Reply With Quote
Old 04-23-2012, 06:20 PM   #24
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
So we decided it was time to make more power. Out comes the engine!





Arin@APR is offline   Reply With Quote
Old 04-23-2012, 06:32 PM   #25
tamz273
Rally Car Champion
 
tamz273's Avatar
 
Drives: 2012 Golf R
Join Date: Apr 2011
Location: Boston
Posts: 399
WHOA! How do I get on the waiting list for this??
tamz273 is offline   Reply With Quote
Old 04-23-2012, 06:53 PM   #26
Arin@APR
GolfMK6 Official Vendor
 
Arin@APR's Avatar
 
Drives: B8 S4 & MK5 GTI
Join Date: Aug 2008
Location: Auburn, AL
Posts: 5,076
Join the facebook page and follow along.
Arin@APR is offline   Reply With Quote
Old 04-23-2012, 07:22 PM   #27
Halvie
Formula 3000 Champion
 
Drives: 2010 Penalty Box
Join Date: Jun 2010
Location: WI
Posts: 4,956
Those are still the stock brakes, right? Hard to tell form that angle.
__________________
Items for sale to buyers in the US only
Halvie is offline   Reply With Quote
Old 04-23-2012, 07:36 PM   #28
veedoubleme
Formula 3000 Driver
 
veedoubleme's Avatar
 
Drives: 2014 MB C300
Join Date: Jul 2011
Location: MN
Posts: 3,084
Quote:
Originally Posted by Halvie View Post
Those are still the stock brakes, right? Hard to tell form that angle.
I see an .:R on them.
__________________
Current Car: 2014 MB C300 4Matic
SOLD: 2011 CSG GTI Autobahn DSG 4-Door APR Stage 2 / APR Carbonio / 42DD Cat/Res DP / S3 IC / DG Springs & Koni FSDs / Brake Upgrades / Enkei Raijins / Uber-Stealth Sub
List of Popular MKVI VAG-COM Tweaks
veedoubleme is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 09:10 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.