9m Supercharged CS hits 420bhp with more boost

Ninemeister · 2006-03-21T18:21:39-06:00

As you will probably all know already, we quote the standard 9m supercharger kit power output as 350bhp on a standard engine but we regularly see 360-370bhp on a fresh motor. However following an inpromptu discussions with the supercharger manufacturer whilst we were displaying the car at Autosport International in January, he convinced us that running the blower faster would get us the right side of 400bhp. It seemed rude not to try it..... The changes that we have had to make in comparison to the stock kit are: 1. change stock 6 rib to 7 rib poly-vee belt drive pulleys 2. larger injectors 3. Cat test pipe 4. Larger Air flow meter Whilst still considered work in progress, the following results were seen on our dyno today, corrected to DIN standards: Run 4 = 429.5bhp @ 7155rpm / 473Nm @ 5444rpm Run 5 = 418.2bhp @ 6798rpm / 462Nm @ 5585rpm Run 4 was with a hot engine with cold intercooler, run 5 immediately followed. Methinks we better fit a new set of rods soon......