Vince's TBI woes, progressive revelations, and tbi mods.

[Chevyguy]

The victim

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Reset your IAC, and check the voltage at your CST. Check your TPS also.

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[Vbb199]

Reset your IAC, and check the voltage at your CST. Check your TPS also.

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I checked tps a while back, its fine i know i DO need to reset iac again tho.
After all the mods and timing adjustments, idle changed.

Its on my to do list

 

[Vbb199]

A lil' custom work

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[Vbb199]

Ha.......

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[Vbb199]

A little re-tappy tap to 5-40,

Old bushings snapped off, holes rebored to .500

Bronze bushings turned to .505 od, ID .375 for shaft and pressed in into holes.

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[Vbb199]

Tada........

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[Vbb199]

Not perfect, but good enough for today.

I also blended "VBI" so it looks like it belongs.

Just need to make butterflies on wire EDM, and buy the police injectors and a new adjustable regulator.

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[Vbb199]

By the way, obviously vbi stands for vince brown injection

 

[idahovette]

OBVIOUSLY!!! LOL

 

[Vbb199]

Thanks to @1987 GMC Jimmy for reminding me, i can modify the factory pressure regulator and emulate the same affect as the 65psi police injectors.

Im going to proceed with that tomorrow, order a new gasket set, make a spacer for the larger butterflies, and then should i have time, install, and see how she roars.

 

[Vbb199]

The butterfly valves, done on wire EDM.

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[Vbb199]

And the easy pressure regulator mod to make it adjustable.
I just replace that screw i drilled out with a 1/4-28 flathead

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[Vbb199]

And done.

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[Catbox]

Look at you all fancy.
Good work sir.

 

[Vbb199]

Other than losing my adjustable regulator setup after spraying my own eye with carb cleaner, and waiting on the gasket set i ordered... the 650cfm VBI is ready to transplant on.

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