Ive put the loom rebuild on hold for a short time until i Have more funds available.
Im now focusing on building a new brake system to give space for a full airbox.
When Im done I might be able to run a fwd format airbox in rwd with no stacks, or maybe up to 120mm velocity stacks with undistorted filters.
Im basically redesigning a BMW system to work with a Toyota.
Some premium BMW models, 7 series, M# etc use a hydraulic pump to boost the brakes and not a vacuum assisted booster due to spacial concerns. I have spacial concerns too and I thought Id try it.
Basically you fit the booster pump behind the master and connect it to a power steer pump and reservoir and it should work. I may need to use some sort of pressure limiting or adjusting device to have it work perfecty but I know it will work. The lines even connect from the reserviour to the power steer pump with the original bmw banjo bolts. Ill need to have a couple of adapters made and the master cylinder may need sleeving to the correct diameter once its installed as the bmw masters run 2 piston diameters in each unit. The one I have seems to be 25 front piston, 19mm rear. I need both to be 20 -21mm.
Heres what the hydraulic booster looks like. Its only 2 inches round and the factory booster is more like 10. So i should pick up around 100mm clearance on the booster.