RRT/getBMWparts.com Koni Challenge ST 328i Build Thread

ianbiz · 10-13-2009, 01:56 AM

Sweet thread and build. I dont know how I missed this before

kcleung · 11-05-2009, 11:30 PM

just found out this thread myself, think I can learn a lot from it, got a few questions already

1) with some of the weight removed and cage added, have you weighted the front and rear axle, is the car still ~50:50, if not, how does that affect the handling?
2) from the photos, seems original stock brake discs were used, what pads do you use?
3) also noticed oz wheels, assume they were chosen them for light weight?

bayerischeperformance · 11-16-2009, 06:47 PM

Quote:

Originally Posted by vgame64

Updates?

car is waiting on its mtech front bumper, new headlight and replacement fender from an incident at VIR

we had a great last race and the Bosch ECU really helped us move up. Without it we werent able to keep up in the straights with the competition.

We will probably take the car to Roebling in december and then we are off to Daytona in january

Quote:

Originally Posted by kcleung

just found out this thread myself, think I can learn a lot from it, got a few questions already

1) with some of the weight removed and cage added, have you weighted the front and rear axle, is the car still ~50:50, if not, how does that affect the handling?
2) from the photos, seems original stock brake discs were used, what pads do you use?
3) also noticed oz wheels, assume they were chosen them for light weight?

1) i believe we are pretty close

2) we actually have 330 brakes on the car which are what is required by the series. I believe the rotors on the 330 are just slightly thicker. I will need to check on pads but i believe cobalt friction possibly

3) yes OZ's since we can get then in the required size, they are pretty lightweight and very strong

vgame64 · 11-16-2009, 07:26 PM

Quote:

Originally Posted by bayerischeperformance

car is waiting on its mtech front bumper, new headlight and replacement fender from an incident at VIR

we had a great last race and the Bosch ECU really helped us move up. Without it we werent able to keep up in the straights with the competition.

We will probably take the car to Roebling in december and then we are off to Daytona in january

1) i believe we are pretty close

2) we actually have 330 brakes on the car which are what is required by the series. I believe the rotors on the 330 are just slightly thicker. I will need to check on pads but i believe cobalt friction possibly

3) yes OZ's since we can get then in the required size, they are pretty lightweight and very strong

Awesome news! Thanks for the updates!

e90pilot · 01-06-2011, 08:58 PM

Just wanted to revive this thread. This is pretty awsome. I really wanted to do something like this when I pay off my car. My brother raced in ST as well. He drove a M54 powered Plano Z4 but they disbanded the team. I'm really impressed with the evolution of the car. It's really cool how you improved it little by little.

How do you adjust brake balance? I though the car adjusted it on the fly. On the track my car understeers whenever I trigger ABS. It would be nice to dial in some rear bias.

qtrlifecrisis · 01-10-2011, 11:39 PM

great thread. thanks for bringing it back up. got anymore photos of this car ontrack?

josephbet01 · 02-14-2011, 01:29 PM

I was enjoying the thread and it just.....

C'mon guys post some updates.

10-13-2009, 01:56 AM	#89
ianbiz Back in a BMW 205 Rep 5,208 Posts Drives: 2015 335i Msport Join Date: Jul 2007 Location: Dallas, TX iTrader: (8)	Sweet thread and build. I dont know how I missed this before __________________ Ian
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11-05-2009, 11:30 PM	#90
kcleung Private First Class 1 Rep 106 Posts Drives: E90 323 Join Date: Oct 2008 Location: Hong Kong iTrader: (0)	just found out this thread myself, think I can learn a lot from it, got a few questions already 1) with some of the weight removed and cage added, have you weighted the front and rear axle, is the car still ~50:50, if not, how does that affect the handling? 2) from the photos, seems original stock brake discs were used, what pads do you use? 3) also noticed oz wheels, assume they were chosen them for light weight? __________________ BMW Performance Brakes
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01-06-2011, 08:58 PM	#93
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Just wanted to revive this thread. This is pretty awsome. I really wanted to do something like this when I pay off my car. My brother raced in ST as well. He drove a M54 powered Plano Z4 but they disbanded the team. I'm really impressed with the evolution of the car. It's really cool how you improved it little by little. How do you adjust brake balance? I though the car adjusted it on the fly. On the track my car understeers whenever I trigger ABS. It would be nice to dial in some rear bias. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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01-10-2011, 11:39 PM	#94
qtrlifecrisis Scenic Artist 7 Rep 325 Posts Drives: 08 BMW 335i Join Date: Dec 2010 Location: Burbank, SoCal iTrader: (1)	great thread. thanks for bringing it back up. got anymore photos of this car ontrack? __________________ E90 / / /M3 - JzB - 6MT - Speed Cloth - Slick Top - No Nav - KW Variant 3 - UUC Exhaust - AFE Intake
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02-14-2011, 01:29 PM	#95
josephbet01 Private First Class 6 Rep 112 Posts Drives: E93 328i Join Date: Oct 2010 Location: York, PA iTrader: (0)	I was enjoying the thread and it just..... C'mon guys post some updates.
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