RE: Factory Boost controller question
Like he said you can build one. I've built about 10 of them for customer/friends. I just finished one actually for my friends '85.5 svo a few days ago.
They cost about $15 to build & you need a drill/tap. You may need a bit the size of the ball to grind out some material, most times the ball doesn't like to fit well.
I build all of mine with a drill press & the same tap. I use two different bits. They're pretty cheap though.
The only real trouble you may have when building one is springs. Some springs have different rates so you can't go by just size alone. Thats easy to fix though, get a spring make a run in 2nd gear 1/4 - 1/2 throttle & to test it. If it overboosts, cut the spring a little shorter & keep repeating until you get it the right size.
Better to diy though, No point in wasting $50 for a boost controller. I did that like 4 years ago for my first turbo project, took it apart & couldn't help but notice that every single part to it they had at the local hardware store other than the knob.
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If you have to ask what it takes to get to 500 HP, you don't have what it takes to get there.
'89 Mustang GT
'86 Mustang vert
'84 Mustang notch turbocharged
'96 Mustan
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