Vanne's lightweight/ interior modification thread
- Thread starter Vanne
- Start date
Fixing the brake ratio atm. 
Heading to the shed tomorrow to sort the brake pedal ratio. Boosted brakes run about 4, unboosted should be around 6. will see when i pull it out and re-drill the arm. guestimating the new hole needs to go up by about 13mm. gotta make sure the master cylinder pushrod angle does not exceed 5 degrees while setting up the ratio. divide A by B to get the ratio.
diagram below:
Heading to the shed tomorrow to sort the brake pedal ratio. Boosted brakes run about 4, unboosted should be around 6. will see when i pull it out and re-drill the arm. guestimating the new hole needs to go up by about 13mm. gotta make sure the master cylinder pushrod angle does not exceed 5 degrees while setting up the ratio. divide A by B to get the ratio.
diagram below:
Stock brake boosted z4m has a really low brake ratio.. didn't see that coming..
3.55.. normally around 4.2
We ended up at 5.2 brake ratio. Pretty choofed... Feels a s**t load better already , but have t driven it yet..
The original hole was at 90mm and I redrilled/welded the hole at 62mm
3.55.. normally around 4.2
We ended up at 5.2 brake ratio. Pretty choofed... Feels a s**t load better already , but have t driven it yet..
The original hole was at 90mm and I redrilled/welded the hole at 62mm
bit of a mixed report this one. spent the whole day at the shop, cleaning up some of the electrics wires and zip tied the gauges to the frame... then tidied up the rear wing a bit. then tried to start the car, batt completely dead.. had to start it as i needed to test the brakes...
used a jump starter battery to start the car.. and then fried the boost gauge... f**k!!! thats not good, not sure if it shorted out somehow due to the spike jump starter, or just something shorted itself out.. eitherway, that burned capacitor smell hung around for a bit... just ordered a new one.
bloody expensive AEM gauges..
then took the car for a drive... absolutely love it, was only a quick hoon up and down the steet in front of the shop, as cops are everywhere, and dont want to get my car impounded..
brakes work much much better.. its now possible to lock them up.. still a bit of spongy-ness in there, so ill bleed them tomorrow with the abs valves open...
car getting exhaust fitted atm... fingers crossed that goes ok
used a jump starter battery to start the car.. and then fried the boost gauge... f**k!!! thats not good, not sure if it shorted out somehow due to the spike jump starter, or just something shorted itself out.. eitherway, that burned capacitor smell hung around for a bit... just ordered a new one.
bloody expensive AEM gauges.. then took the car for a drive... absolutely love it, was only a quick hoon up and down the steet in front of the shop, as cops are everywhere, and dont want to get my car impounded..
brakes work much much better.. its now possible to lock them up.. still a bit of spongy-ness in there, so ill bleed them tomorrow with the abs valves open...
car getting exhaust fitted atm... fingers crossed that goes ok
8)
I gotta modify the back of the front headlights first (when I say modify, I really mean cut 2/3rds of the back of the lights housing off it as the front wheels go that far on partial lock due to how low the car sits now) it's slowly coming to my realization that that there ain't gonna be much actual z4 left on this car that hasn't been modified.
