Started in on the brakes. All the bits aren't here but I did swap out the master cylinders which took longer than I hoped. Way back I changed my mind on where I wanted the pedals height set after I'd already built the pedal box and ended up shortening the pusher rods on the masters, so those also had to be swapped. My clutch pedal has an adjustable pedal stop and going from a 0.7" to a 0.75" master I need to reduce the allowed travel by 15% or risk damaging the clutch
Attachment:
20240210_124643.jpg [ 3.5 MiB | Viewed 1064 times ]
Then I had had machined the clutch pedal to accept a standard brake light switch to add clutch position to the ECU for stuff like launch control or maybe push button start...but the stupid switch didn't want to thread in properly because the molded threat were oversize but eventually I got it.
Attachment:
20240210_131730.jpg [ 3.73 MiB | Viewed 1064 times ]
Still waiting the 3rd proportioning valve, the pressure sensors and tees plus I'd forgotten that I used the original rear brake line for the clutch and then used US sized stuff for the new rear line US stuff on the rear line so I need to order the correct Tee for that.
I also started playing with reading the sensors. The ECU always reads all the inputs so all I need to do is connect is to see it, but seeing it as 0-2000psi instead of 0-4.5V means converging in the ECU or as a virtual channel in the tuner. I set it up in the ECU which is dead simple, Channel list>Add Channel>analog conditioner
Attachment:
add channel.JPG [ 141.4 KiB | Viewed 1065 times ]
Then name it, select an input channel, tell it what the sensor should read and what the sensor voltage output is. That's it, now the ECU has a special channel for front brake pres that can be viewed in the tuner or added to a data log.
Attachment:
analog contioner.JPG [ 166.33 KiB | Viewed 1065 times ]
I decided to created it in the ECU because I think I will also add an brake malfunction light then lights if the rear pressure is not correct compared to the front pressure. With the balance bar and all the proportioning valves it seems like to would be easy for something to be wrong or a master cylinder failure, anything that causes the f/r bias to be out off from where I set it. The relationship is a curve so channel list>Add Channel>1D table and plug in the info from the spread sheet I made. Last winter or the winter before I thought it was a good ideas to use the "slow down" light as a malfunction indicators and the Brake warning light as a shift light since its on the tach and easy to see, but now that I'll have a brake warning maybe I'll blink it for a brake issue. Need to think about that.