CA AUTOMOTIVE UK
04-24-2007, 03:23 PM
good day
some of you may have seen on other forums and in this month's Performance BMW magazine that we have recently supercharged an M3 CSL for an oveseas customer, using the ESS kit.
We thought it may be of interest to detail the latest developments with this project:
whilst the car never felt sluggish we alwaysfelt there was more to be had safely, so we fitted a smaller pulley and did a little re mapping and the car now pulls even harder, as you would expect. The UK Dyno Dynamics dyno showed some 430 ish rear wheel horsepower last time ( mode shootout 6F, 3rd gear)with the previous pulley, so we are eager to get it back on there and see the latest results, will post them up soon.
The car never got close to overheating even on track testing at Bruntinghthorpe, which has the longest high speed straight in the UK at some 2 miles, however as a safety precaustion we have fitted one of our own custom made enlarged radiators holding about an extra 3 litres water, for more effective cooling.
It was a tight fit but worth the effort we think; we also fitted a Pacet electric Profan with adjustable thermostatic control in place of the OEM viscous fan, all as seen in the below images. We decided to fit the Profan for two reasons :
1. the oem fan blades had to be shaved a little to clear the radiator hose after installing the ESS kit, and we then had to shave them just a little more to clear the larger radiator, so we did not want to compromise overall cooling .
2. wanted to see if the car would run cooler and maybe not so much of a drain on the engine from the viscous fan.
As a result the car cetainly runs a little cooler, according to the OEM water temp gauge ( as we al kno wa colder engine is a more powerful engine, up to a point) and it could be just the "placebo" effect but there seems to be just a little more low end "zip" now due to elimination of the OEM fan ...
We also completed installation of the Racelogic adjustable traction control system, you may have seen a post we made a few weeks ago detailing how we have worked with Racelogic to make this system work on E46 and post 1999 BMW cars. racelogic supplied the parst and we had to mess about with the cars software to prevent it "seeing" the traction control as some kind of fault with the car and switching to limp mode. The other thing we had to do was find a way of dealing with the abs sensors' CAN Bus signals, as teh racelogic was originally designed to read hall effect or waveform type sensors.
This all took some time but was worth it we think, the system now allows the driver to dial in the percentage of rear wheel slip / slide he wishes, and can go charging into a curve at full throttle planted and the racelogic system will not allow the back end to step out any more than the pre set limit :yikes:
Obviously there are limits to how hard you can charge into the bend, the laws of physics will always apply :) We will post up videos of this in action soon.
what's next ? well the customer has asked us to respray the car in black, with the colour fading into clear coat as it reaches the front vorsteiner carbon bonnet, new vorsteiner carbon front bumper and the ca carbon front wings, so that the carbon shows through. We think this will look great, let's see :-)
thanks for reading
some of you may have seen on other forums and in this month's Performance BMW magazine that we have recently supercharged an M3 CSL for an oveseas customer, using the ESS kit.
We thought it may be of interest to detail the latest developments with this project:
whilst the car never felt sluggish we alwaysfelt there was more to be had safely, so we fitted a smaller pulley and did a little re mapping and the car now pulls even harder, as you would expect. The UK Dyno Dynamics dyno showed some 430 ish rear wheel horsepower last time ( mode shootout 6F, 3rd gear)with the previous pulley, so we are eager to get it back on there and see the latest results, will post them up soon.
The car never got close to overheating even on track testing at Bruntinghthorpe, which has the longest high speed straight in the UK at some 2 miles, however as a safety precaustion we have fitted one of our own custom made enlarged radiators holding about an extra 3 litres water, for more effective cooling.
It was a tight fit but worth the effort we think; we also fitted a Pacet electric Profan with adjustable thermostatic control in place of the OEM viscous fan, all as seen in the below images. We decided to fit the Profan for two reasons :
1. the oem fan blades had to be shaved a little to clear the radiator hose after installing the ESS kit, and we then had to shave them just a little more to clear the larger radiator, so we did not want to compromise overall cooling .
2. wanted to see if the car would run cooler and maybe not so much of a drain on the engine from the viscous fan.
As a result the car cetainly runs a little cooler, according to the OEM water temp gauge ( as we al kno wa colder engine is a more powerful engine, up to a point) and it could be just the "placebo" effect but there seems to be just a little more low end "zip" now due to elimination of the OEM fan ...
We also completed installation of the Racelogic adjustable traction control system, you may have seen a post we made a few weeks ago detailing how we have worked with Racelogic to make this system work on E46 and post 1999 BMW cars. racelogic supplied the parst and we had to mess about with the cars software to prevent it "seeing" the traction control as some kind of fault with the car and switching to limp mode. The other thing we had to do was find a way of dealing with the abs sensors' CAN Bus signals, as teh racelogic was originally designed to read hall effect or waveform type sensors.
This all took some time but was worth it we think, the system now allows the driver to dial in the percentage of rear wheel slip / slide he wishes, and can go charging into a curve at full throttle planted and the racelogic system will not allow the back end to step out any more than the pre set limit :yikes:
Obviously there are limits to how hard you can charge into the bend, the laws of physics will always apply :) We will post up videos of this in action soon.
what's next ? well the customer has asked us to respray the car in black, with the colour fading into clear coat as it reaches the front vorsteiner carbon bonnet, new vorsteiner carbon front bumper and the ca carbon front wings, so that the carbon shows through. We think this will look great, let's see :-)
thanks for reading
