Vacuum Design

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fullthrottle

SILVER Star
Joined
Jun 30, 2018
Threads
36
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163
Location
New Zealand
Wanting to know if anyone has experienced slightly different vacuum setups from the factory install that has simplified the setup, but also improved performance.

My factory setup (was)....
- Vac pump on alternator
- two small vacuum reservoirs seperated.
- factory brake booster and clutch booster
- vac operated transfer

Ideally wanting to improve breaking as it's been repowered with a 1HDT. My thoughts are...

- Vac pump straight off the timing gears of the 1HDT.
- single, much larger capacity vac reservoir
- dual diaphragm brake booster
- single, larger vac reservoir supplying vac to break and clutch booster, as well as the transfer.

I do wonder though, for safety reasons if the brake booster should have it's own reservoir. Yet they all run off the same pump anyway.
 
Hello,

You can use a Terrain Tamer brake booster.

Regarding the setup, you can use a 2004-2006 HDJ78/79 as a guide.






Juan
 
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