Secondary runners

[hock]

Is the secodary runners electronicaly activated? If so, would it be possible to put a switch on that to disable them and keep them closed when the extra power they provide when open is not needed?

Reason I ask is as you all know, they open automaticly and create the need for more fuel, if they stay closed they need for that extra fuel will be gone.

Anyone?

 

[SHOZ123]

There are no secondary runners. Only a butterfly throttle plate in the LIM that closes off the secondary intake valve.

If you stay below 3400 rpms then the butterfly plate is closed.

 

[hock]

Only a butterfly throttle plate in the LIM that closes off the secondary intake valve.

Ah, yes, thats what I'm talking about and I do know about keeping it below 3,500 rpm.

BUT, at times thats kinda hard to do and they way first gear is, and the way I tend to drive at times, I go above that.

So, back to what I asked, is it possible?

 

[naval-avi8or]

Is the secodary runners electronicaly activated? If so, would it be possible to put a switch on that to disable them and keep them closed when the extra power they provide when open is not needed?

Reason I ask is as you all know, they open automaticly and create the need for more fuel, if they stay closed they need for that extra fuel will be gone.

Anyone?

The butterflies that Paul refered to is electro/mechanical. You can disconnect the actuator to prevent them from opening. Most GEN III owners disconncet the electrical connector then wire them open because as stated they are not true secondaries. If you disable them shut I would speculate that your gas milage might actually go down. Why you may ask cause when your motor needs the extra fuel and air it will not have it and cause the motor to labor harder.

 

[hock]

The butterflies that Paul refered to is electro/mechanical. You can disconnect the actuator to prevent them from opening. Most GEN III owners disconncet the electrical connector then wire them open because as stated they are not true secondaries. If you disable them shut I would speculate that your gas milage might actually go down. Why you may ask cause when your motor needs the extra fuel and air it will not have it and cause the motor to labor harder.

My whole idea on this is to connect a switch to them so I have the option to turn them on when they are needed, otherwise, under normal driving conditions they will not open. Think this might work?

If so, where is the servo/module for the butterflies hiding at?

 

[pitcrew207]

that seems like a good idea. id like to do that for when i drop my car off at shops an stuff, i dont trust some people...dont want them doggin my stuff

 

[SHOZ123]

I believe switching the red wire would shut them off.

 

[hock]

I believe switching the red wire would shut them off.

Now, where is it at, exactly?

From what little bit I saw of the linkage tonight I know its on the trans side.

 

[SHOZ123]

The electronic controller is under the front engine cover mounted to the valve cover.

 

[hock]

The electronic controller is under the front engine cover mounted to the valve cover.

Cool.

 

[dmjarosz]

I dont think switching the red wire will work. Reason: this cuts power to the module and the computer will think its broken, causing a check engine light to come on. Im gonna look at the circuit board and see if theres a way to "cheat" this idea. More to come...

 

[naval-avi8or]

I dont think switching the red wire will work. Reason: this cuts power to the module and the computer will think its broken, causing a check engine light to come on. Im gonna look at the circuit board and see if theres a way to "cheat" this idea. More to come...

Disconnect the IRCM cable from the butterflies. The PCM can work the cable back and forth all day long and never no the difference.

 

[SHOZ123]

Assuming you want manual control and do not care about a check engine light. You could switch the 12V+ red wire or the Black/White ground wire.

 

[nik97]

Or, get an Xcal. The IMRC seems to be load based and can remain shut after 3400. -My tune anyway.

 

[hock]

Or, get an Xcal.

So where would say I could get one of those? Link please.

 

[SHOZ123]

Some tuners use load to control the opening of the IRMC. Otherwise OEM is 3350 rpm open, closed at +6900 rpm.