The Berk Technology Time Attack 135i Gets Some Hand-Me-Downs From Its Big Brother!

The search for speed continues with our Time Attack BMW 135i this off season in preparation for the opening round of the 2010 Redline Time Attack series. Although we are continuously breaking our own records and progressing forward with our little 1-Series monster there is still a long way to go. With progress comes issues and one of those issues we ran into this past season was the fact that we needed more negative camber.

One of the most overlooked aspects of a well handling car is its alignment. A car’s alignment settings can make or break its performance on track. A big part of a car’s alignment, when it comes to handling performance, is camber. Without being able to run enough negative camber, we weren’t using 100% of our tires handling capabilities. This, as you can imagine, is very frustrating to know when you are trying to shave off every hundredth of a second you can in time attack.

This is why one of the first major changes we are making to the car before the start of the season addresses this. We have swapped our stock 1-Series front control arms and wishbones with some longer, lighter, and stronger ones off of a current generation BMW M3. Although the M3 arms are non-adjustable, their longer length will give us the extra bit of negative camber the car is asking for allowing us to fully utilize our tires potential. This will result in not only better lap times, but also better tire wear!

Although adding more negative camber was our main goal with this upgrade, it also comes with a few other performance enhancing benefits. One of those is a reduction in toe change during compression/rebound. As the car’s suspension moves up and down, the toe setting for the wheels changes resulting in changing handling characteristics. These new M3 arms will reduce that effect providing us with a more consistent and predictable handling car. The new M3 components also feature higher quality bearings which will enhance steering precision and provide the driver with better feedback from the road.

One last change we made in this last go round of upgrades is switching to slightly stiffer sway bars, also from a new generation BMW M3. These will further reduce body roll and help keep all four tires planted through the turns.

We will make similar modifications to the rear suspension a little later on as well as a handful of other performance upgrades from some of our new sponsors! Check back often for more off-season updates and be sure to come see us and the car in person at Round #1 of the 2010 Redline Time Attack Series on March 27th & 28th out at Buttonwillow Raceway.

Sources
HP Autowerks
http://www.hpashop.com

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