The GM solenoid will leak with co2, even at 40psi. That particular solenoid is normally open, and it's not what you want to use for co2. I've had really good success with the Apex solenoid.

 

have you used whatever soleniod perrin sells?? http://www.perrinperformance.c...S.htm

this one is normally closed and works pretty good for "normal" boost control usage

 

That one should work fine, but i've never used it myself. I'm pretty sure you can get a good solenoid, probably even the ones everyone uses, from Grainger. I just don't know what specs and details are needed, and i've never spent the time to look into it. I have no doubt in my mind that you can find something like that for less than $40 if you can find the source. Do you know what frequency to run that solenoid at? I run the apex at 25hz.

 

i run that one at 25hz, seems to work fine, noone at perrin can tell me what it "should" be... its pretty steep at $90bux though.

 

Maybe NLR can tell us where to get the solenoids they use? lol

 

Our controller will do the same thing over and over regardless of your input pressure. It doesnt matter! Our dynamic forward feedback control will deliver what it needs to in order to acheive its target with the specified ramp.
if you target 10 psi with a ramp of 2 it will take 5 seconds to make 10 psi( with 100 psi source pressure)

it will do exactly the same with a 30 psi source pressure or 60 , doesnt matter.
It wont over shoot, undershoot, have stability problems etc. There is no maximum amount of boost pressure. It will control all your turbo and system are capable of producing. With this unit you dont have to go set your gain, offsets,stability etc.....weve done the homework so the end user doesnt have to deal with all that. Install and experience the most advanced air management system in the world.
This is also selling like crazy to tuners! They can bring their own controller plug into where they need to and makes it an absolute breeze for tuning

Acts like a larger spring and compensates for valve movement=control port compression.
(0-100 psi per second ramps per stage)
7 stages of boost in shift apps
6 stages of time based boost programmable to .01 sec
scramble
reduce boost


The solenoids we use are special lol

 

AHHH SH*T 850 HERE I COME!!

 

I'm trying to understand the need for such a system. If the "problem" is limited traction then a clock-based boost control system will be to little or value. Only a true driver controlled system will do in this situation and this is no more complicated than a good TPS implementation. If the "problem" is fluctutaing boost pressure then first fix the mechanical issues ie. leaks, hoses incorrectly sized, incorrectly sized wastegate, etc.
It seems that all this system could do is increase boost lag after all that's what its stated intention is to do i.e. reduce power so as not to overpower limited traction. But the clock has no feedback to the driver or actual wheel slippage. Does this system have input for wheel speed sensors to control boost levels based on ACTUAL wheel slippage? If not, can it be added?

This system looks like it would be great for bracket racing simliar to the old timed throttle stops domestic bracket racers used to use. Bracket racing is not looking for maxmium performance but rather consistent slower times. For maximum performance a boost control system that maximizes driver control like a good TPS-based boost control system with a properly matched wategate / turbo combination would be more effective. But for bracket racers this could be the ticket.

Pilot.

 

I beg to differ, but it sounds like you have your mind made up. Precise boost control is VERY important with a car that is on the edge of traction. Yeah, something that controlled boost very accurately and did so relative to tire slip would be great, but i've yet to see such a thing.

 

you can also setup the innovative msbc-1 to be used with co2. it can be had for about ~600

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pilot &raquo;</TD></TR><TR><TD CLASS="quote">For maximum performance a boost control system that maximizes driver control like a good TPS-based boost control system with a properly matched wategate / turbo combination would be more effective.

Pilot.</TD></TR></TABLE>

How?
Most applications have good wastegate / turbo combinations. That isnt the problem why there is boost overshoot and movement.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flip1199 &raquo;</TD></TR><TR><TD CLASS="quote">you can also setup the innovative msbc-1 to be used with co2. it can be had for about ~600</TD></TR></TABLE>

There really is no comparison between the two of them...not even close.

 

what does yours have that sets it apart?

 

haha, one works!

Seriously, i've used the innovative in the past, and i'll just say that it's far from problem free...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flip1199 &raquo;</TD></TR><TR><TD CLASS="quote">what does yours have that sets it apart?</TD></TR></TABLE>

Have a look and see for yourself

https://honda-tech.com/zerothread?id=1438380

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">haha, one works!

Seriously, i've used the innovative in the past, and i'll just say that it's far from problem free...</TD></TR></TABLE>

what problems did u run into with the innovative?

 

Not controlling boost properly, not hitting the target boost half the time, overshooting boost, etc.

 

good to know tony i was thinking about using that next year i think ill just stay with the quad stage