alaric wrote:If someone that's had the opportunity to try the +2 with and without the servo could give an estimate of the gain from the servo, that would be great.
The servos fitted to the +2 and the Elan have gains of approximately 3:1 and 2:1, respectively. I have posted before about my experiences with removing the servo from my +2. I went all the way down to a 5/8 bore master cylinder, the smallest available from Girling. I found the pedal effort to be much too high and completely out of balance with all of the other required inputs, steering, gear change, clutch, etc. It was not simply a matter of balance of control input. The fiberglass to which the pedal box is mounted was also cracking under the required force. I did this many years ago, without the benefit of the more recent high coefficient brake pad materials. Nonetheless it is hard to make up for the 3:1 boost of the servo.