A week after launch, M3/M4s are starting to hit the streets!
As a followup to our
F80 M3 Dyno and Weight, we had an opportunity to once again weigh another M3 for comparison. Our racecar building friends over at Racewerkz Engineering swung by our shop yesterday with their new Mineral White F80 M3 & Alpine White F82 M4. Naturally, the first order of business was to see how the M4 would do on our in-house Dynojet dyno.
Dyno Testing
Just like the Yas Marina Blue M3
we dynoed last week, this Alpine White M4 further proved that BMW has seriously underrated the F8X's horsepower claims. Even on a relatively hot and humid day for SoCal, the M4 recorded a very impressive 421whp and 410wtq with STD correction.
A different approach and part of data collecting, we did some endurance testing on the dyno. Endurance testing is a quick 5-run burst with no time to cool down. The purpose of this is to see how the vehicle reacts to heatsoaking:
We didn't get a chance to dyno the M3, only because the motor was not yet broken-in.
M3/M4 Weigh-In
Note that both cars are identical build with the exception of [02NK M Carbon Ceramic Brakes] that were equipped on the M3. M4 was standard.
2015 Mineral White M3 Specs
0ZDB Driver Assistance Plus
0ZEC Executive Package
0ZLP Lighting Package
02MK M Double-clutch Transmission (DCT)
02NK M Carbon Ceramic Brakes
02VF Adaptive M Suspension
02VZ 19" Black Wheel 437 M Mix Tire
Fuel: Empty (no driver)
Weight: 3562lb
2015 Alpine White M4 Specs
0ZDB Driver Assistance Plus
0ZEC Executive Package
0ZLP Lighting Package
02MK M Double-clutch Transmission (DCT)
02VF Adaptive M Suspension
02VZ 19" Black Wheel 437 M Mix Tire
Fuel: 1/2 Tank (no driver)
Weight: 3579lb
The carbon ceramic brake optioned M3 weighed in at 3562lbs, while the M4 was only 17lbs heavier.
Modifications
It was then time for some modifications. While the M4 chose to remain stock for now, we had the opportunity to install Macht Schnell spacers on the M3
- Macht Schnell Competition Wheel Spacer Kit - 12mm (front)
- Macht Schnell Competition Wheel Spacer Kit - 15mm (rear)
- Macht Schnell 90mm Competition Stud Conversion Kit
The spacers were just enough to give the M3 a proper stance, while the studs allow for quicker and easier wheel changes when it hits the track.
As always, we took a bunch more photos to show you nearly every step of the process.
F80 M3 Macht Schnell Spacer & Stud (new stance)
Special thanks to Racewerkz for taking the time to participate!