I heard about use co2 to control the boost,can some one
explain me how to use and install,thanks for looking

 

yeah, ive never looked into it but would be interested to know how its setup and controlled.

 

Pretty sure it's just a co2 bottle and regulator fed to the boost control port on the wastegate and is just more consistant then other setups


Correct me if I'm wrong

 

im pretty sure its a CO2 bottle some line and 2 solenoids....one for increasing the boost and one for decreasing the boost.

 

right but i believe the whole point is to be able to run super low boost in first

 

A little more detail would be nice... What do you control it with? A solenoid only does what it's told.

 

It works exactly the same as traditional boost control. However if your turbo will only make 25 psi with a 4 psi spring, you only have 25 psi available to put on top to keep the gate shut. If you run co2 for the control source you can then apply however much pressure on top of the gate to reach your desired manifold pressure.

 

I've been looking for some sort of chart......like. the max boost a certain weight spring will yield..

 

So what do you control the co2 with? Do you use it for boost control vs your traditional boost controller? As in, it would replace it.

 

You will not find one. No one knows how much a given spring will make because there are too many varibles. A good rules of thumb is doulbe spring psi, but I.ve seen as much as 6X's


Co2 just replces your boost source AKA manifold pressure that is all.

 

Kinda off topic....with a 14lb spring the set point was near 100% at 36psi on the eboost

With co2 all the SP's had to be changed......if the pressure at the gate varies the SP's will be off.....
Also with the bottle off you could do the burnout on spring pressure....

 

so what supose to be the benefits to use the co2,any
diagram of instalation or photo of your personals set up.
interesting topic

 

One can get 40+ psi off a 7lb spring without using co2...

Just gotta think a little.

Sorry lets get back on topic.

 

Simply take your pressure source away from your boost solenoid and replace it with hose from your co2 set up. Doesn't get much easier. We have been using ams 1000 boost controllers on the control port and Honda s300 boost control on the side port of the gate with good luck

 

Will also allow you to make more boost off the line while launching using the C02

 

Why would u want that haha. Nah your right though if that's what u desire it can def make it happen

 

2 controllers is where i get lost

 

So my "boost control" functions on s300 can control a co2 setup? If im understanding that, thats pretty sweet! I just never imagined that it was that simple, but I did know absolutely nothing about it. Would be great for a street car!

 

yes you can do it with s300. we have wired up dual input / single output solenoids for street cars as well. run manifold pressure up to the point where it doesnt want to make any more boost, and then switch over to co2 when you need more boost than you can make on manifold pressure.

matt....really the only advantage to doing it that way is so that you dont have to use c02. c02 works really well but there are downsides to it too. seems to wear out wastegate diaphrams a lot faster, if you dont have somebody to turn the bottle on/off for the driver its easy to forget to turn it on and **** away an entire run, and the biggest complain that i have is that if you get a leak anywhere in the system the bottle imediatly goes empty and then your stuck running spring pressure and again **** away a run.

i set everything up where the driver has to do nothing other than drive. no switches, no bottles to turn on, etc. i also prefer to not have to have 75 crew members and cheer leaders to help stage a car. sportsman cars should require 1 person, the driver lol

ever had a vaccuum line pop off the side of a wastegate? same concept with dual boost controllers. a simple on/off solenoid has the same concept but using pwm on the side makes it a lot easier/less violent. with the ams controllers i try to keep everything 1-1 so your manifold pressure is spring pressure + target pressure. less thinking involved

 

if you run c02 for slicks at the track with s300....with a typical solenoid setup....do you have to regulate the c02 pressure coming out to your max desired boost pressure or what?

 

the co2 bottle will have a regulator......i usually run the bottle pressure about 10psi or so higher than the amount of pressure i need to get my desired boost level. you will have to play with it to see what you need. usually 50-60psi is plenty.

the ams-1000 controller is great because you give it a target psi for the top of the gate. so if you need to run 50psi on top of the gate to make 40psi of manifold pressure, set your bottle at 60 and your good. same concept with s300 your just dealing with %'s rather than psi #'s

 

If only hondata would make it just that much smarter.

 

couldn't you put a solenoid between the bottle and the regulator, thus making it a remote bottle opener?

 

Technically yes. Seems the bottles loose pressure over time when left on though

 

if your looking for a co2 setup i have something i wanna sell pm me. Bottle, regualtor, mount, and a larger bottle to fill with.

Also be careful ive seen people blow the diaphrams apart with tial gates.