R50/53 SuperChips vs Standard & 15% vs 17% Pulley
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3rd Gear
Joined: Aug 2007
Posts: 160
Likes: 2
From: Clovis, CA
ON TEST: SuperChips vs Standard & 15% vs 17% Pulley
Spent another great day in the hands of 1320 (UK) doing some testing on my car to see what gains could be found swapping from:
Power (fly bhp): 239.9
Dyno Run 2 - 17% Pulley & Superchips Map
Power (fly bhp): 242.6
Dyno Run 3 - 17% Pulley & Standard Map
Power (fly 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.
Alta V2 15% vs 17%
Superchips Bluefin vs Standard Mini Cooper S Map
- Alta V2 15% pulley to Alta V2 17% pulley
- Superchips Bluefin Map to Standard Mini Cooper S Map
- Janspeed Manifold with High Flow Cat
- Milltek Cat Back
- GRS Intercooler
- Alta V2 15% Pulley
- Facelift Supercharger (Teflon)
- Superchips Bluefin with custom Lohen map
Power (fly bhp): 239.9
Dyno Run 2 - 17% Pulley & Superchips Map
Power (fly bhp): 242.6
Dyno Run 3 - 17% Pulley & Standard Map
Power (fly 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.
Alta V2 15% vs 17%
Superchips Bluefin vs Standard Mini Cooper S Map
Last edited by BigShow; Mar 3, 2008 at 07:47 AM.
5th Gear
Joined: May 2006
Posts: 923
Likes: 1
From: Southern IL
Good little test and a bit surprising how the stock ECU worked versus the Superchipped run.
I'm not surprised the 17% pulley made more power, you've got more boost, but judging how the line begins to approach the 15% power levels at higher RPMs it really looks like compressor efficiency is nearly maxed out at those speeds. So the 17% looks good for most power and a drag car setup, but in the interest of safety for a car that will be tracked in varying temps with the potential to spend a lot of time at very high RPMs the 15% still seems the way to go.
I'm not surprised the 17% pulley made more power, you've got more boost, but judging how the line begins to approach the 15% power levels at higher RPMs it really looks like compressor efficiency is nearly maxed out at those speeds. So the 17% looks good for most power and a drag car setup, but in the interest of safety for a car that will be tracked in varying temps with the potential to spend a lot of time at very high RPMs the 15% still seems the way to go.
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