Spent another great day in the hands of 1320 doing some testing on my car to see what gains could be found swapping from:
- Alta V2 15% pulley to Alta V2 17% pulley
- Superchips Bluefin Map to Standard Mini Cooper S Map
My car is a Jan 2003
MCS with 41k miles and has the following engine mods:
- Janspeed Manifold with High Flow Cat
- Milltek Cat Back
- GRS Intercooler
- Alta V2 15% Pulley
- Facelift Supercharger (Teflon)
- Superchips Bluefin with custom Lohen map
Dyno Run 1 - 15% Pulley & Superchips Map
Power (bhp): 239.9
Dyno Run 2 - 17% Pulley & Superchips Map
Power (bhp): 242.6
Dyno Run 3 - 17% Pulley & Standard Map
Power (bhp): 239.6
The figures above prove that the 17% pulley gives more power than the 15% pulley so no surprise there (see first dyno graph below) but the Superchips map did throw up a big surprise.
If you look at the second dyno graph and compare where the power comes in using a 17% pulley with Superchips map versus a 17% pulley with standard map you'll see that the extra few bhp of the Superchips map comes in from 7.1k rpm to 7.4k rpm... !! Before that the standard map blitzes it on both power and torque!!
So in short is the Superchips Bluefin worth it??? In this case the answer would be a big NO!! Its not all about peak bhp, it's about how it delivers bhp and torque right through the rev range.
My thanks to Paul & Chris for helping me find even more useable power on the cheap.
15% vs 17% Pulley (Superchips Map) 
Superchips vs Standard Map (17% Pulley) 