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Choosing an electronic boost controller? Here is a good run-down...

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Old Apr 11, 2015 | 05:52 AM
  #41  
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Originally Posted by coolmanvette75
Has anyone ever wired up the boost by gear in the Eboost2 to an external switch in the cockpit? Kind of like, have the first gear setting be low boost to get out of the hole and then you hit the switch to go to the next gear which has the higher boost setting.
Yes there are people who have installed the microswitches and made the eboost2 work for a boost by gear. INTMD8 and MightyMouse are good references for this. INTMD8 had a picture setup of his micro switch (I'll try to dig it up later). So to answer your question, "yes".
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Old Apr 11, 2015 | 05:58 AM
  #42  
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Here is INTMD8's setup for the microswitch

[/QUOTE]



Here is the youtube link https://www.youtube.com/watch?v=MtRb...ature=youtu.be
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Old Dec 16, 2017 | 12:16 AM
  #43  
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What's the best way to progressive boost an automatic car? I'm getting ready to build a turbo set up and just not really sure how i should go about a boost controller, whether it be boost by time, mph, or rpm. It is built for the street and sees the strip every once in a while
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Old Dec 16, 2017 | 02:48 AM
  #44  
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That's for testing on your setup to find out what works best.

I'd imagine boost by rpm on some autos would be rather pointless as rpm is not directly linked to speed.

Speed could be useful.

Time would be fine for the strip too
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Old Dec 16, 2017 | 12:01 PM
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i think by gear would be the most useful and easily applicable.

speed would be second.

wheel speed + acceleration + time would be 100% awesome. probably need holley dominator for that tho.

still waiting for joe nova to make a video on how he does boost by gear on the stock computer without microswitches on the shifter. ( I let my computer shift for me)
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Old Dec 16, 2017 | 12:40 PM
  #46  
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Originally Posted by truckdoug
i think by gear would be the most useful and easily applicable.

speed would be second.

wheel speed + acceleration + time would be 100% awesome. probably need holley dominator for that tho.

still waiting for joe nova to make a video on how he does boost by gear on the stock computer without microswitches on the shifter. ( I let my computer shift for me)
Depends what trans.

Would be a bit pointless on say a glide...hell, even a typical 3 speed auto....given the wide range of speeds attainable in each gear, would boost by gear be that great ?

Boost by speed would be far more useful.

And how easy or difficult any of those is to achieve will of course depend on the controller in use. If using a standalone boost controller, the engine ecu is largely irrelevant so you could do any of the above with a stock or aftermarket ecu.
Of course with a good aftermarket ecu there should be little need for a separate boost controller.
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Old Dec 16, 2017 | 03:39 PM
  #47  
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Originally Posted by truckdoug
i think by gear would be the most useful and easily applicable.

speed would be second.

wheel speed + acceleration + time would be 100% awesome. probably need holley dominator for that tho.

still waiting for joe nova to make a video on how he does boost by gear on the stock computer without microswitches on the shifter. ( I let my computer shift for me)
Yeah Yeah I keep pushing it off. I wanted a test drive portion of my video but my Nova lost 2nd gear so I never got around to finishing it up. I'm working with my buddy Roy to let me use his volvo to finish up the video.


On another subject. If you had the option to design your own boost controller, with as many USEFUL features as you could think of, what would you put on it?

I just finished up the one for my corvette. It does boost by time/speed/gear/traction but so far only works for a PWM boost valve like the 3 port MAC valve. I'd really like to avoid CO2.
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Old Dec 16, 2017 | 03:48 PM
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Boost per RPM per gear >>>>>> mph based
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Old Dec 16, 2017 | 03:53 PM
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You have have hot shifts perfectly with mph based

I use boost per RPM per gear to target G.... Which really is the goal
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Old Dec 16, 2017 | 03:59 PM
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If you know what G to target..and G isnt a variable.
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Old Dec 16, 2017 | 04:11 PM
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G means everything on the street.

You are going to have a distict boost curve to deliver a G target across mph AND ratio


Mph gets you in trouble without a reference to gear/ratio

On the ratio change you need power the instant of the ratio change to hold the Target G

If you short shift a bit you killed it, over shift it some and you smoked the tires
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Old Dec 16, 2017 | 04:39 PM
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True, but G is also a huge variable too.

I'm sure we'd all like to pull 3Gg everywhere....but it isnt very realistic. Nor is even 1g
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Old Dec 16, 2017 | 06:09 PM
  #53  
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Originally Posted by JoeNova
Yeah Yeah I keep pushing it off. I wanted a test drive portion of my video but my Nova lost 2nd gear so I never got around to finishing it up. I'm working with my buddy Roy to let me use his volvo to finish up the video.


On another subject. If you had the option to design your own boost controller, with as many USEFUL features as you could think of, what would you put on it?

I just finished up the one for my corvette. It does boost by time/speed/gear/traction but so far only works for a PWM boost valve like the 3 port MAC valve. I'd really like to avoid CO2.
if i had my way, the boost controller would be tune able via laptop with drop downs and spread sheet values...basically a better GUI than my eboost thing.

yeah most people dont need CO2
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Old Dec 16, 2017 | 06:37 PM
  #54  
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Originally Posted by truckdoug
if i had my way, the boost controller would be tune able via laptop with drop downs and spread sheet values...basically a better GUI than my eboost thing.

yeah most people dont need CO2
I've never made a GUI for anything but its not out of the question.
I already have basically unlimited variable possibilities in this one. I'm already giving it tire diameter, gear ratio per gear, rear diff ratio, etc. I also have it set so you give it max boost target RPM/MPH where I input target RPM for peak boost and it levels out afterwards, or target MPH for max boost and it levels out after. I guess implementing target G wouldn't be too hard, as I already have an accelerometer in the car that I plan to use in the future for boost reduction while cornering, maybe active aero if I ever decide to go that route.

Maybe I'll experiment with GUI. Closed loop target G sounds awesome for the street, but wouldn't you also need a traction control to work along with it? So if your G was low because of spinning tires it doesn't start pouring on the boost.
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Old Dec 16, 2017 | 10:05 PM
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Originally Posted by stevieturbo
True, but G is also a huge variable too. I

I'm sure we'd all like to pull 3Gg everywhere....but it isnt very realistic. Nor is even 1g

If you haven't logged G you wouldn't understand.

g is not a huge variable. On the street maxium achievable G is directly tied to the tire and surface
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Old Dec 16, 2017 | 10:09 PM
  #56  
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Originally Posted by JoeNova

Maybe I'll experiment with GUI. Closed loop target G sounds awesome for the street, but wouldn't you also need a traction control to work along with it? So if your G was low because of spinning tires it doesn't start pouring on the boost.
Yes you would have to do something along those lines

Mine is simply an open loop boost curve that will hit my target G across the full operating range... Until it is power limited to sustain G

And because I'm using rpm/gear I don't have to hit the shift point just right to make it work

The shift used to be by far the hardest hurdle to not blow
the tires off one way or shove the converter down the engines throat the other

Last edited by rotary1307cc; Dec 16, 2017 at 10:19 PM.
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Old Dec 16, 2017 | 10:26 PM
  #57  
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Originally Posted by rotary1307cc
Yes you would have to do something along those lines

Mine is simply an open loop boost curve that will hit my target G across the full operating range... Until it is power limited to sustain G
I think I could just run closed loop PIDs to target and maintain G in relation to traction. I just don't know enough about using G for boost control to do it without a ton of research. You would give the PID a target G, and it would take full control of boost solenoid PWM to match target.

Do you only target a certain G below a certain MPH for traction and then ignore G once you're really moving? I don't think G would be so relevant at 140 mph.
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Old Dec 16, 2017 | 10:36 PM
  #58  
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Ugh now I have to hurry up and get my corvette back together lol.
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Old Dec 17, 2017 | 01:29 AM
  #59  
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i think it would be applicable at any speed. an increase in velocity or a decrease in time will lead to greater acceleration (and then bust the tires loose)
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Old Dec 17, 2017 | 04:17 AM
  #60  
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Originally Posted by rotary1307cc
If you haven't logged G you wouldn't understand.

g is not a huge variable. On the street maxium achievable G is directly tied to the tire and surface
Which is exactly why it's a huge variable, I've logged it plenty of times.

All tyres are not the same, and all surfaces are not the same.
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