Choosing an electronic boost controller? Here is a good run-down...
[/QUOTE]Here is the youtube link https://www.youtube.com/watch?v=MtRb...ature=youtu.be
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
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)
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)
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.
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)
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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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
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.
yeah most people dont need CO2
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.
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
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.
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.
All tyres are not the same, and all surfaces are not the same.









