Since then I've added a GTT induction kit and a Milltek manifold and sports cat. Paramount Performance did an ECU map and the dyno run shows a healthy 222 bhp (though this was done on a cold day which may have helped a little). Haven't been back on the track yet but the engine seems to spin up a little faster and there feels to be more torque.
Here are my rolling road results from last week; little worried about fuel ratio...at 6500rpm is was reading 10.6:1. This seems very low or is that Mini playing it safe? Can anyone offer advice on this?
Model: Cooper S JCW
DOB: 2003 (works kit certificate 03/11/03)
Wheel/tyre size: 205/45/17
Went to Lohen at the weekend...they were holding a Dyno Day on Saturday! Great fun!
Put my standard Cooper S (Gen 1) on the rollers, expecting no more than factory figures (i.e. 170 bhp) and got a big surprise. average of 184bhp and 216 Nm. Still not the most powerful MINI on the road but a good set of numbers for a standard car and a good base for modding!
Model: Cooper S
DOB: May 2005
Wheel/tyre size: 205/45/17 RF
Your results are actually very average for the level of mods you have. I mean if you were to pick out the actual meaningful power mods from your list (for the purpose of a one-time dyno figure) you would have:
ALTA V2 CAI
ALTA 17% PULLEY
JANSPEED MANIFOLD & HIGH FLOW CAT
MILLTEK CATBACK JCW 380CC INJECTORS
Cat sport Tune
The intercooler will not help you get a high dyno number, but it will help you get more consistent dyno numbers across the board.
This being said, if you want to hit the 240-250 mark, you will need to pony up for a new cyl head, bigger injectors and a new tune. Depends if you value 25-35whp @ ~$3000.
My list of engine mods is:
Alta 15% pulley
Alta 2.5" cat back
RMW shorty headers
RMW 440cc injectors
RMW big valve head
When I had my car dynod after the tune was done my numbers (in LA at sea level) were only 235whp/186wtq. I was pretty dissapointed but Jan @ RMW attributed the shortfall (I should be at the 250 mark with my mods) to glazed cylinder walls.. My crosshatching was pretty much no existant. The car is still a little rocket, so I wasn't too bothered by it.
Hi, I have the following mods on my mini and was wondering what the estimated power would be once I've installed the injectors this weekend.
It's not mapped yet, so it's running the standard MCS map.
2004 R53 Cooper S
- Alta 17% pulley
- Alta CAI
- GRS intercooler
- Alta intercooler couplers
- MSD ignition
- Magnacore leads
- Full Miltek exhaust and high flow cat and manifold
- JCW 380cc Injectors (on order)
- Powerflex wishbone and lower engine bushes
- EBC drilled and groves discs all round
- Goodridge brake lines
- mintex pads
- 5.1 AP break fluid
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