I have been building and racing B14's for quite a while and have never quite been able to get all of the understeer out of the chassis and to make the car respond crisply to attempts to get it to rotate. I have gotten them to where they rotate slowly with bending the beam and with ridiculose spring and rear bar rates but they will still have terminal understeer if driven in a ham fisted manor.

The B14 is also sort of squirmy under trail braking and turn in and also has a vauge feeling in the rear while taking a set.

Well I was looking at the trailing arm bushings and noted that they were made of really gushy rubber and had large windows cut out in them for additional flex. I figured that these bushings were allowing the axle to walk around giving the unsecure feeling in the back and also decoupling the antisway bar and the torsion bar of the rear axle.I had Energy make me a set of urethane solid bushings to replace the rubber.

The results are oh my god! The car is now so responsive I spun it on the track on my first lap, just warming up the tires. The car was way too loose, a first for a B14. After some shock and tire pressure adjustment, it was a lot better but still quite loose and I managed to spin in the race when I had to take a turn off line to avoid spinning cars.

I feel that this will make a big breakthrough in B14-B15 handling, i just have to resort my car to take advantage of the better response but reducing oversteer a little. I am going to soften the rear bar and perhaps the rear springs.

These bushings are like going up 300 in/lbs in rear spring rate! They make a bigger difference in chassis balance than anything I have done so far. They also eliminate the squirm and weird feeling out back.

Energy should have them for sale soon. As a warning, although they should be nice on a street car, if you have an already on the edge tuned race car, its going to knock you into wild oversteer.

Mike