Monday 4 December 2017

RPi Exhaust Static Noise Test

So today we did the static noise tests on the RPi Exhaust:


At tickover it was 77.1 dBa

At 6000 rpm @ 1M we hit 100.2 dBa but it maxed out at 102.1 when I lifted and the exhaust popped and crackled a bit.



Sunday 3 December 2017

RPi Exhaust Fitted!

Removing the old exhaust was not so bad just a couple of rusted bolts that needed persuading. Fitting the RPi exhaust was a joy, it fit perfectly and had a lot more space to work in.

 Half Done, heres a photo for comparison



Weight Saving = 12Kg total
  OEM = 12Kg (Each x 2) = 24Kg Total
RPi = 6Kg (Each x 2) = 12Kg Total

Yes it is very loud perfect for our race car! A few nice gurgles on the over run too :)
As they say if it’s too loud you're too old!

Noise Test & Video to follow..

Friday 1 December 2017

Bring on the noise! RPi Exhaust is here..

As part of our weight loss program we have gone for a Axle Back RPi exhaust, so the Z4M should sound a lot louder like the animal it is. Plus apparently there will be a few wHp power gain too!



First impressions, its very well made and a quality piece of kit..


For now we have done a static noise test on the OEM exhaust so we can compare once this new one is fitted:


87.5 dBA @ 6000 rpm for the OEM