Auxilary ports to open on Turbo Boost
 

Ok all you Rocket scientist, including you Vendors. I have learned that if you can open the auxilary ports on Boost we will see a noticable increase in Torque and more Horespower.

The reason I'am bringing this to light now , is because with the new ECU's that will be hitting the streets soon adding this control to the units will help alot..

I know more tweaking with Timing/fuel, etc. but this is probably the icing on the cake. We would want to just control this at Boost only...

My car is running great at 9psi boost, tweaking of the maps ofcourse and RP High flow cat, and 100 octane , since I only bring the car out on weekends..

So, If anyone out there knows how to incorporate this into the ECU's that are coming out , or if there is a way to control this someother way please let me know.

the mazsport ecu can do this already as well as the megasquirt i believe

zoom44, No they can't I asked them already... But I do hope they add this feature to their ECU's , or maybe there is another way of doing this... ANY TAKERS...

i thought the auxillary ports were vacuum driven?

Aseras, No they are electronically controlled...

I would assume the motec m800 can do this, I think Hymee mentioned it. I'm sure he'll step in and let us know. I was also under the impession though, that the interceptor could do this. I swear I read it somewhere? :confused:

Emanage can do it as well. There is an AUX channel that could be wired to the port actuator.

That's sweet, have you used this feature at all? If so, are the gains decent at all, or would we need a lot more fuel(bigger injectors) for this to yield any significant gains?
Btw Jeff, I'll be on my way home in a few hours, it's all boxed up and will be at the post office tomorrow morning. Sorry for the delay :)

I haven't used it yet - I'm still dealing with the ignition timing and injector control. There is something wrong with the way the EMU handles the ignition that causes it to be very advanced semi-randomly. Probably a signal level issue. They still don't really have the firmware set up for the SE3P correctly.
The EMU also has several analog and pulse control lines that can be used for different things.

Ah, that's all really Greek to me, but would opening the ports earlier be very desireable? It seems that flowing more air into the engine is obviously beneficial to making power, but could our fuel system supply enough? I mean, just thinking about it, it could be very awesome. Reminds me of a vtec controller type option. This is something I am very interested in.

unichip can do this id swear the mazsport can but....

I glad to see info on this subject coming out. But I know the interceptor dose'nt offer this, I have talked to Scott .. Please Scott if you see this, address this issue.. Also Jeff , I have asked Greddy and they said no, so if you have more info on how to do this , please let us know..

My point to all this is , if I'am really going to fine tune this Greddy Turbo I want the auxilaries controlled first, and then start tweaking the maps... Everyone keep up the good work, I think we are close, just not there yet.. So all those master mechanics please help..
Thanks

I think it would be a great idea to have the auxiliaries open when under boost. That would make a nice powerband. I'd have to check about the output capabilities but the Megasquirt might be able to send a signal based on boost. If it doesn't, it wouldn't be hard to write it in.

why not a separate controller? there must be a couple of boost activated switches that would do the job.

Hey , What happen to all these Roto Mechanics, Scott, Jeff,Benny,Chris,Todd and the list goes on and on... I thought we could find a solution to this problem, maybe I'am wrong....

But I still believe someone will tell us how to control the auxilaries upon Boost.. Hopefully soon fall is here and soon I will be storing my car for the winter.. I would like to add this control during its storage time and anything else I would be adding on the car... So come on Guys let's figure this out. I'am trying ,but my knowledge on the Rotaries is not all that great, yet....

all you need are relays and a boost switch

Ok, we're getting little bits and pieces on how to hook up the auxilaries under boost, But does anyone really know how to accomplish this.... Is there a way to connect through the Greddy E0-1, or would it have to go through the Emange....

I'am still trying to figure this one out, I have been away for awhile but I will be freeing up more time shortly to start my winter changes to my car, So any help would be greatly appreciated.....

I know when the emanage detects positive pressure via the pressure sensor, it sends a signal, likely a 5-12v DC signal, easily verifiably though, to the cold temp dongle. You should be able to tie into that same wire via a relay.

All of this talk sounds like some great potential! I hope sum1 figures this out and can show gains, b/c i may very soon be getting the greddy turbo (hopefully in less than a month). I'm gonna probbaly use a profec b, so for u e01 guys this mighgt be a different process to open the auxillary ports. Good luck though to all.

Thanks for the info.. Right now I'am looking into the wiring diagram book, page 32(b-1E) and I can see the connections for the APV motor, which is 3J & 3G. But there is a clockwise and counter clockwise rotation of the gears.

So if anyone knows which connection is for which and also which direction is openning the ports and which direction is closing the ports , I would need to know...

Also in the manual it says ( do not supply voltage to the motor for more than 3 seconds, because it could damage the APV motor... So how do we control the motor to lock in either direction and than shut the voltage off to the motor.. I'am still thinking this going to have to be controlled through the Emanage /ECU...

Man am I open to sugestions... Help....

I believe these 2 circuits will do what you want. They are based off a 555 timer to provide a pulse of adjustable width after receiving an input pulse. There is some additional triggering circuitry on the front of it to turn the steady DC output from the emanage into a trigger pulse for the 555 timer. One of them will pulse when a signal is applied, the other will pulse when the signal is removed. Connect the output to a transistor or a relay that will power the motor. Connect the input to the output of the emanage that controls the cold temp open loop dongle.

You will of course need to play with R1 and C to get a pulse long enough to fully rotate the motors. Also, this circuit was likely designed for 5v, but most 555 timers should be fine with 14.4v as well, but you may need to adjust some of the triggering component values on the front end. The one with the transistor on the front of it should go to the motor that closes the ports after boost is removed. This setup will open the aux ports whenever boost is present.

Hey rkostolni, thanks I will print out this circuit drawing and study this info.... Or Maybe I will hire you to put this together and pay you for your time and investment ...

Don't worry about paying me, I'll help you free of charge. That's the point of forums like this! Just make sure you show some Gtech, 1/4 mile or dyno charts after you get it done. Let me know specifically what you need help with and I'll do my best.

So are you going to go ahead and try this out?