anyone knows of some sort of electronic device that cut boost after reaching a preset amount ?

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Old Feb 6, 2002 | 08:53 PM
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Default anyone knows of some sort of electronic device that cut boost after reaching a preset amount ?

sorta like a prevention to boost spiking?

so let's say I set it at 9 psi if it ever spike that high, it'll automatically open the wategate to dump exhaust gas out ...
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Old Feb 6, 2002 | 09:00 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Hondata

It has a boost cut circuit which will cut power if a certain boost pressure is exceeded. It is user definable.


[Modified by VaporTrail, 1:01 AM 2/7/2002]
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Old Feb 6, 2002 | 09:02 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

I was just gonna say Hondata but it looks like John beat me to it
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Old Feb 6, 2002 | 09:16 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

hmm, is this available on any stage with boost option ?
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Old Feb 6, 2002 | 09:28 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

I thought the Apexi AFC-R is also able to prevent boost spiking?
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Old Feb 6, 2002 | 09:32 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

The AVC-R can control boost, but if the wastegate or some other issue is causing boost to spike it can't control it. Hondata just cuts fuel when it senses too much boost...

Dustin
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Old Feb 6, 2002 | 09:35 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Hondata just cuts fuel when it senses too much boost...

Dustin
That kinda sounds bad. Cutting fuel?
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Old Feb 6, 2002 | 09:47 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Injecting zero fuel doesn't hurt anything. You get no combustion.. that's what you want.

Dustin
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Old Feb 6, 2002 | 10:25 PM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

It's not electronic, but that's what a pop-off valve is for, to prevent boost spikes.
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Old Feb 7, 2002 | 02:52 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Yeah, I run one .......You need two things: a msd softtouch rev limiter (or 6 series ignition with this built in), and either a gauge w/ a warning light (and output at warning....like the Greddy gauge) or a pressure switch.

What you do is have the gauge or switch hit a relay that switches between the msd running through the rpm pill or running strait (no resistor).

This method has been working great for me. In addition I will soon be adding a NOS fuel pressure safety switch so I can't pressure drop out on me.

If you want more info on this and wiring schematicpoo poo me up.
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Old Feb 7, 2002 | 03:12 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Injecting zero fuel doesn't hurt anything. You get no combustion.. that's what you want.

Dustin
does it also cut the spark too? I'm sorry If it sounds like a silly question, I'm just trying to understand how this stuff works.
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Old Feb 7, 2002 | 05:20 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Hondata

It has a boost cut circuit which will cut power if a certain boost pressure is exceeded. It is user definable.
Damn do I want Hondata..
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Old Feb 7, 2002 | 07:51 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

blitz dual sbc will reduce boost by x when your preset limit is reached..
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Old Feb 7, 2002 | 07:57 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

Hondata

It has a boost cut circuit which will cut power if a certain boost pressure is exceeded. It is user definable.


Damn do I want Hondata..
One more reason I can't wait for another 2 weeks when I can get my Hondata 2b
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Old Feb 7, 2002 | 08:03 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

blitz dual sbc will reduce boost by x when your preset limit is reached..
Will not do you any good if, say, the pressure line to the side port on the wastegate is severed. The boost controller is going to do you absolutely no good...

Dustin
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Old Feb 7, 2002 | 09:58 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

zdyne has one too! i just make that area super rich and no timing! instant boost cut lol
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Old Feb 7, 2002 | 10:17 AM
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Default Re: anyone knows of some sort of electronic device that cut boost after reaching a preset amount ? (

I just let mine spike away.. which it has only done once or twice when my wastegate was hooked up worng... It was moving REALLY fast at 15-18 PSI

Glad my motor's built!
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