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MiniTorque*****
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1,072 Posts
Discussion Starter #1
There have been more than a few people asking about what bhp and torque figures different Mini2 cars are generating with their various tuner or homegrown conversions so I thought I'd start a thread where Mini2'ers who've had conversions done can post dyno runs proving their power in the hope the administrators deem it worthy to be a sticky.

I'll start but could everyone also include their car details as below:

Gen: R53
Model: Cooper S
DOB: Jan 2003
Wheel/tyre size: 215/45/17
Mileage: 42k
Tuner: Lohen/1320autos

Engine Modifications:

Alta 17% Pulley V2
Reduced Supercharger Belt
GRS Intercooler
Janspeed Manifold with High Flow Cat
Milltek Cat Back Exhaust
Alta V2 CAI

Dyno:

1320 Autos

Peak BHP: 242.6
Peak Torque: 186.1


 

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544 Posts
Gen: R53
Model: Cooper S
DOB: March 2004
Wheel/tyre size: 205/45/17
Mileage: 34k
Tuner: GT Tuning

Engine Modifications:
GTT220 (17% pulley)
GRS Intercooler
GTT / Janspeed Manifold with High Flow Cat
GTT Re-route pipe

Dyno:
1320 Autos

 

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M3 CSL
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724 Posts
2005 MCS
Milage=33k
Tyres=205/45/17 DSST

Spec:

JCW exhaust
JCW 380cc injectors
JCW GP I/C
15% pulley+belt
JCW remap
NGK BKR7EQUP
JCW air intake
standard head,cam and manifold
97 octane BP fuel

[email protected]
184.3ft [email protected]

Font wishbone bushes were badly worn at time of dynoing so may get better reading now had them fixed:biggrin:
 

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619 Posts
Gen: R53
Model: Cooper S
DOB: March 2003
Wheel/tyre size: 205/45/17
Mileage: 43k
Tuner: GT Tuning (mostly)

Engine Modifications:
GTT220 (17% pulley)
GTT +1% Crank Pulley
Schrick Cam
Lohen Throttle Body
GRS Intercooler
GTT Manifold with High Flow Cat
JCW Cat Back
Std Injectors (now) 440cc during RR session
LiveWire Coil Pack & Ignition set
Flowed & Ported Head

Dyno:
Wallace Performance (Aberdeen)
 

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Lights are on but...
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10,330 Posts
Gen: R53
Model: Cooper S
DOB: May 2005
Wheel/tyre size: 215/35/18 at 34PSI
Mileage: 48k
Tuner: GRS ;)

Engine Modifications:
17% Alta V2 Pulley
Alta CAI (with stock pipe)
GRS intercooler
JCW 380cc Injectors
NGK iridium Spark Plugs
Optimised Bypass Valve
Play MINI Cat Back.

Dyno:
1320 Auto's :)
 

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Flying Finn
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375 Posts
John Cooper Works (JCW) 210hp Package:
-JCW catback (kink/flat part removed)
-JCW cylinder head
-JCW air intake (flap and mechanical parts removed)
-JCW supercharger
-JCW 380cc injectors

Plus:
-Mini Madness JCW intake filter kit
-GTT Exhaust Manifold
-GTT +3% Overdrive Crank shaft pulley
-GTT Modified bypass valve
-GTT Intercooler + Snoot boots
-Custom ECU map

222hp/250Nm(184lb-ft)

Hope to better that soon:D
 

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Mighty Mouse
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99 Posts
Hi,

Does anyone have a dyno showing AF ratio vs rpm they would like to share ???

I'm just interested what ratios people with modified engines are running on the dyno.

Cheers

Robbo
Here's a dyno plot showing A/F ratio that I had done last week after fitting a -15% pulley. As can be seen from the plot A/F ratio remains very rich even after the addition of a pulley (stock map).

The stock intercooler heat soaked very quickly, however, the dyno operator conducted all tests with the bonnet up resulting in no forced air convection through the intercooler core. Personally I think the bonnet should have been closed, can someone shed some light on the correct way for testing cars fitted with a TMIC?
 

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49 Posts
John Cooper Works (JCW) 200hp Package: 2004
-JCW catback (early one without kink)
-JCW cylinder head
-JCW supercharger


Plus:
-GTT CAI
-Janspeed Exhaust Manifold
-GTT Intercooler + Snoot boots


233.1hp @ 7009
182.7lb-ft @ 6106
 

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MiniTorque*****
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1,072 Posts
Discussion Starter #11
Model: Cooper S
DOB: Jan 2003
Mileage: 42k
Engine Modifications:
  • Alta V2 17% Pulley
  • Alta V2 Intake
  • GRS Intercooler
  • RMW Head
  • 1320autos Camshaft
  • 380cc Injectors
  • Superchips ECU Remap
  • Janspeed Manifold with High Flow Cat
  • Milltek Exhaust
Tyre Size: 215/45-17
Dyno: 1320 Autos
Power: 281.1 bhp @ 7,199 rpm
Torque: 210.6 lb-ft @ 6,532 rpm
 

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258.3bhp and 263.1Nm
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699 Posts
15% Supercharger Pulley
Iridium plugs
Alta pannel filter
MiniMania exhaust manifold
MiniMania fast road cam
GTT re-route pipe
MiniSpeed Stage 3 re-map

232bhp & 271nm torque

(soon to have: GRS intercooler, Miltek cat back, light weight crank pulley)
 

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Flying Finn
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375 Posts
Mods:
John Cooper Works (JCW) 210hp Package
JCW catback (kink/flat part removed)
JCW air intake (flap and mechanical parts removed)
JCW supercharger
JCW 380cc injectors
JCW spark plugs
Mini Madness JCW intake filter kit
GTT Exhaust Manifold
GTT +3% Overdrive Crank shaft pulley
GTT Modified bypass valve
GTT Intercooler + Snoot boots
RMW cylinder head
Custom ECU map/Kreator Mocy (not optimized for RMW head)


Results w/ RMW head (approx 10C warmer than last time):
240hp/204whp
263Nm/231wNm (194Lb-ft / 170wLb-ft)
 

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MMC Member
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14,017 Posts
OK, we have a new idea that I think will work well (Thanks to MINIAC) on posting dyno and track information. I have seen a few complaints of information being posted in other threads and thus lost in the depths. This thread will be a sticky that you can post your results in and then link to them when you want to offer it up in a thread.

Posts would include:
  • Model
  • Build Date
  • Mileage
  • Engine Modifications
  • Tire Size
  • Dynometer Type
  • Maxium Power (bhp or whp) at RPM
  • Maximum Torque (lb-ft) at RPM
  • Dyno Graph (attachments)
Please only post results in this thread. Any chatter will be removed as I want to keep this as clean as possible. If you need or want something else in there, please let me know via PM. Thanks.
 

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M3 CSL
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724 Posts
SRR figures


As Snowie has been asking for some SRR figures I thought I would post mine up to start off


[email protected] (graph shows some clipping above 6500)
215lbs/[email protected] (could be a bit more though from looking at the graph as it is nearly on the next line up which is 218.75)

From reading another thread it seems that some people want to cap the rpm limit as that can "fudge numbers". A vendor also said "I tend to ignore bhp numbers once the torque has fallen below about 15% ish of max torque,it is far less useful power and only derived due the rpm" so when you look at my graph you can see that my peak bhp figure is at 7500 and my peak torque is at about 4800 an I still make [email protected] the redline (so that is around 11/12% ish of max torque)

I only make 2.7bhp from 7000 to 7500

So I think it is fair to say that my car is set up to run higher rpm limit period. Not just to bump up the peak bhp figure as some might think

The wheel horsepower for my car using my measured run down losses from 1320's dyno means that it is 233.5WHP (269.5bhp)
 

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656 Posts
Ok here's the spec of my MCS,

02 plate
mileage 47000
258.8bhp
205lbft
Engine mods:

West Tuned conversion;
Big valve head (not sure what spec it is but I know its big valves and ported)
Large throttle body
West Tuned own cam
Live map by Ray West
GRSmotorsport charge cooler
NGK spark plugs
Miltek exhaust
Miltek manifold with sports cat
Alta air filter
GTTuning 450 injectors
GTTuning vernier cam sprocket
GTTuning 17% pulley
GTTuning Adjustable Fuel pressure regulator

The story between myself and Ray was basically I want the maximum amount of horse power with the minimum amount of boost and had to be reliable. My car runs no more than 15.5psi of boost, I've done track days and a hill climb course and drive the car the way Ray instructed me too - always brings a smile to my face everytime I drive it
 

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Here are my data:

-02 cooper S, mileage 60000
239,2HP
259,9Nm
205/40 17 Yokohama Parada


- Shrick cam
- "noname" water to air intercooler
- "noname" 19% pulley
- "noname" custom head with original valves
- "noname" big throttle body (63mm)
- OBX header+header wraps
- no cat
- One ball with custom 2,5" stainless steal pipe to back resonator with magnaflow middle
resonator
- denso iridium IK22
- K&N panel filter with modifed airbox
- calibrate bypass valve
- fidanza flywheel
- aquamist water injection
- MTH chip (but it's very old and it's write only for the pulley :))

I think that's all. :)

The temperature was 17°C. For each graph we do 2 measurment.
This is independent measurment of power on MAHA LPS2000 dyno. The power is with EWG standard which is more accurate than DIN but lower number. At DIN standard power will be bigger for approx 3%.

Here is without water injection, the water in intercooler was hot because the car was there for about 30min without fan. Maybe it will be a little more gain with cold water.



This is with just water in water injection. The water injection is not necessary with good intercooler!!! Gains about 15 HP are dreams. Only with custom chip maybe you get something.




This is 30% methanol in water injection. It's bigger power but the curve is deformate like with just water.
Now I start with water injection at about 4000rpm, but I will start now at 5000 in the future but only in summer.



Any comments?
Does gearbox (pre of post facelift) influence to power? Do you measure it in 4 th (I am looking only 116mph at 7000?!?!?) or 5th gear?
 

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MCS 2002
Hartge 210 kit
51000mls
Milltek Catback
BP 97 Ron Super Unleaded
China special tyres with 1.6mm of tread

Dyno'd at local car shop (Advanced Auto Developments) made 165.25hp/137.41ft-lbs at the wheels. The RR operator advised that transmission loss was 25% I thought it was more like 18%.



Anyway, time to mod...
 

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352 Posts


Sept 2004 JCW210
40000 miles
195/55/16s
MINIMANIA Cam
MINIMANIA Manifold
NGK sparkplugs
ITG filter

221.3 BHP @ 6999
183.4 lbft @ 4730
 
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