Installations and Dyno Services Available 10:00-6:00 M-F

(Please call for quotation & appointments)

 

Why choose Gruppe-S???

 

With our state of the art installation and service facilities, coupled with industry leading test equipment, including a Mustang Dyne AWD dynamometer, we offer a complete turn key experience for you. With our parts division offering some of the best prices currently available on the most popular items, we can offer value that our competition simply cannot match.

Aside from the usual bolt-on modifications, here at Gruppe-S we have the ability to offer full turn key built motor solutions, and custom racecar fabrication. Chances are if you can dream of it, we can build it and install it. With our Mustang Dyne AWD dyno, we have the ability to offer dyno time, in a controlled environment, for baselines and custom ECU mapping by either yourself or one of our in-house tuners.

 

At this time we are able to support most of the popular brands of Standalone and piggy back ECU’s such as,

• AEM
• Autronic
  
• 034 Motorsports
  
• Electromotive
  
• Link
• Pro Tuner (Cobb Tuning AccessPort)
• EcuTek custom reflash (Support for both Subaru and Mitsubishi including all JDM ecu types)

We also have the ability to use tools such as EcuTek and Techtom (Reflash) to create custom maps directly onto the OEM ECU for Subaru and Mitsubishi.

 

We choose the Mustang Dyne unit for the following reasons,

• Tests both axles of the test vehicle under the same imposed load, while at the same time providing for front-to-rear axle speed synchronizing. This prevents damage to expensive center differentials and other AWD hardware.

• Industry respected Eddy current load based.

• Wheelbase selection taken out of the setup equation leaving more time for us to actually work on the car.

What does that mean in English???

• As you know, there is a huge difference if you are accelerating your car with the wheels up in the air, or actually driving on the freeway.  With a non-load based dyno (i.e. Dynojet) you are only spinning a heavy drum - similar (although not as bad) to accelerating with your tires off the ground.   With a Mustangdyne, the dynamic braking simulates real freeway acceleration through imposed loading.  You can even increase the vehicle load to increase resistance (such as for increased air resistance).

• Bottom line - tune a late model car on a non-loading dyno and what looks like a perfect map will generally run dangerously lean on the street.  We have seen Air/Fuel  differences of over a full point lean after tuning on a non-loading dyno then getting out on the street.  This will not happen with the imposed loading of a Mustangdyne dynamometer.

• Also many late model 2wd cars (such as the E46 M3)  require the front and rear wheels to be spinning at the same speed to operate properly (otherwise the car will falsely believe the tires are slipping)..  The Mustangdyne eliminates this problem with a belt driven axle that connects the front and rear rollers.

*Some products that are installed are NOT legal in California on public highways or roads. The intent of the most products are for off-road use or race use only. Please check your local laws.