i'm just starting to look into this.
but I hope to detail the process of setting up the boost by gear functionality of my e-boost 2 boost controller with either one or both of the analog outputs on the mvpi pro.

if anyone has already done this, school me up. thanks.

 

i dont have hpt but it looks like the outputs are digital, not analog.
but i still think you could make something work, similar to how the transmissions can select four gears with two solenoids.
good luck.

 

so I must be confused, HP support is telling me the mpvi pro does not have outputs

which does not jive with what i read here:
https://www.hptuners.com/help/vcm_sc...connecting.htm

or here:
https://www.hptuners.com/help/index....connecting.htm

 

Looks like pretty simple On/Off digital outputs, and not variable analog outputs.

 

yeah that was my mistake assuming that it was an analog signal like the inputs. it would still be useful to me as an on/off. I could just have it control first gear boost. and use a switch to "arm" it so I could still do my burnout in 1st gear.

that second link in my last post was intended to link to the page where HPT details the configuration of the output and what PID triggers it.

---anyways HPT tuners support is not being very responsive so I consider this a dead end. I'll probably have to switch to MS to get the features I want.

But that is a year or more away, so I look forward to your video about boost by gear.

 

Videos are all recorded. I just need to edit and upload them all to Youtube. I've been trying to get a Youtube channel started so I can get some of this stuff out there for others to try. I have notebooks completely full of theories and test results, and having access to engine/chassis dynos will help a ton.


Btw, looking at the wiring diagram for the Eboost 2, you should be able to wire the 2 digital outputs on the green and orange wires on the Eboost 2 for full boost control, assuming you have an electronic trans. HPT will have to read the on/off values of the shift solenoids and output accordingly. You'll set up the switch logic on Eboost 2 to match the solenoid patterns.

Look at page 20 here:
http://www.turbosmart.com/wp-content....19_MAY_12.pdf

 

yep that's exactly what i originally had planned on doing, but HPT support tells me there is no such thing as an output on the mpvi pro.

 

That would be the easiest thing in the world to test with a simple voltmeter. Whether or not they really support 200ma of current would be my worry.

 

without a dialog box to set up a trigger PID i'm not sure I follow you.


however i did just get this email from HPT support:

"Douglas,

I am told we have the functionality but I do not see the configuration in the 3.6 Scanner. Speaking with engineering about it and will let you know when I get an update. "

 

this is currently a dead end. i might try a previous scanner version i have on an older computer.

i'll update if I get it working on an older version or if they add it back in a future version.

honestly this is probably the coffin nail in the stock PCM for me. holley and MS3 can just do so much more, so much easier.

 

If I ever get off my butt, I have a $100 dollar boost by gear solution working and tested on the stock PCM that requires very little work.

As of right now I'm trying to get a custom setup made that does boost by gear, time, speed, RPM, traction, etc, but I'm just SO busy here lately. With a little luck, the stock PCM in my Nova will be nearly as capable as the stand-alones.

 

If you looking for a simple boost by gear output from the PCM, why not piggy back a relay to the trans solenoids?

So when the trans is in first, relay 1 closes,
when trans is in 2nd , relay 2 closes.

not exactly like that, but if you use the solenoid logic map for your trans 60e 80e, you can figure out how you would need to wire 2 relays to get digital outputs to send signals to your boost controller.

Is that what you are looking for?

 

yes and i think that's what joe has been doing although i dont know for sure.

i

 

This idea came to me in my sleep last night, but it might be something that will work. What about using the fan controls, fan 1 off at the 1-2 shift mph and fan 2 off at the 2-3 shift mph. You could use these to ramp in boost I would imagine, no?

I think I will try to use it to reduce timing (with IAT mod) below 30 mph on a N/A build for autocross.

 

hey that's a pretty good idea.

it's funny all the effort I spent tuning the truck to spool as hard and fast as possible, turns out to be totally unusable at the track...just a little 4.8 on 12psi

 

the more i think about this the more I like it.

i could use fan 1 (which has more dialog control boxes) for the boost control and leave fan 2 to actually run the cooling fan.

i could set the ECT on to something low like 50*F and off to max (284*F)

then use the enable and disable speeds to trigger my boost controller to limit boost at only the mph through 1st gear.

my home track is no prep and I am not helping matters much with nitto DR's and my absolute beginner status making a parallel 4 link work

i tried pulling timing but all it did was make it bust loose when I got to the revs where the timing was not pulled