I'm having a lot of problem trying to get my car to boost correctly with the new Profec Spec II EBC. I have a HKS TO4R turbo with an external HKS wategate. I hooked up the vacuum line per external wastegate direction and the car would only make 10psi (wastegate spring). NO matter how I dialed in the EBC settings. Here's how I connected the vacuum lines.

1) a line from fpr to the EBC
2) line from top of wastagate to the "COM" port of the valve unit (port on the left side of the valve unit)
3) I put a 1.5 ft long line into the side of the wastegate and put a tee on the other end
a) one side of the tee went to the compressor side of the turbo
b) the other side of the tee went to the "NC" port of the valve unit (the port on the right side of the valve unit)

Any help would be appreciated. The instruction for the settings seemed to be wrong. It says to press the set **** to get to the different modes. The only time I can get to different mode is by pressing the mode button and use the set **** to change the value.

Is it easy to use the PSI or Kpa?

 

I heard the direction is completely wrong and it will only work if you use it as an internal wastegate setup. Can some chime in on this??????

 

there are three holes with with 3 plugs... for external you use COM, NC and the middle hole remove the plug (if you plug this hole it will not work)

 

http://www.tamparacing.com/for...06785

 

idunno i got mine working fine as per the instructions , the wiring and plugging everything in wasnt hard,but the setup with like functions is kinda a biotch , i havent messed with mine in forever so i dont remember. but i know you use the com and NC ports.

 

Thanks for the response guys. I did hook up the vacuum lines as an external wastegate setup using the COM, NC, and leaving out the plastic cap to the middle port. I still can't boost above or below 10psi. I read some other threads and they mention the only way the EBC will work is to set it up as an internal wastegate. Are you guys telling me that you've got it to work as an external setup?

Let's just pretend that I got the EBC to work and that I have the setting for psi instead of Kpa. What should my setting be if I want to run 15psi? What mode should I change first?

 

i have mine working to the external set up . works fine, i boosted 15psi on it already according to the peak and hold function.
i first mess with the set boost, then the set gains .

 

i ran the vacuum line from the intake manifold to th NO port and the vacuum line from the side of my Tial wastegate to the COM port.

 

espanol,

What's your reason for setting you setup as an internal wastegate setup when you have an external wastegate?

itr206,

when you mentioned that you set the boost first and then played with the gain, you are referring to turning the set **** clockwise and seting it to your desire boost? The gain is from pressing the mode button once and then turning the set **** to adjust the settings. What should I do with the start boost setting?

 

i dont get it ? to adjust any settings you need to turn it up and down , that pusnging button is only to change the functions.
the on the deffault screen you turn up to turnt he boost up , then hold in to set it , then push it to go to the next screen to set the other gains .
its been a while i havent driven my car in like six months, soo im going off of memory

 

[QUOTE=hy_revs]espanol,

What's your reason for setting you setup as an internal wastegate setup when you have an external wastegate?[QUOTE]

it works and i have less vacuum lines.

 

The instruction says when in boost display, press the set **** a certain number of time to get to a specific mode; ie, press the set **** twice to get the set gain mode. Nothing happens when I press the set ****. However, when I press the mode button I am able to get through all the modes. This EBC really sucks. I'm about ready to sell the unit and pick up an HKS EVC.

 

from what i remeber when you press the set know and hold it down it saves the settings. its not that hard to set up , its just a bitch to do the gains, i cant tell if my wastegate is opening up preaturely or late so for me thats the hard part, i just try and keep an eye on it its spiking of faling of on the boost gauge.

 

What I did was toggle through the gain, set gain, boost warning limit, etc. by using pressing the mode button. I would make adjustments to the settings by using the set **** and pressing it to save. The instruction says to press on the set **** a certain number of times to get to gain, set gain, etc. and then turn the set **** a a desire number and pressing it to save.

My other problem other problem is getting the ebc to work as an external wastegate. Anyway, I tried hooking up the vacuum lines as an internal wastegate.

1) I ran a line from the boost controller to the frp line
2) line ran from the COM port valve unit to the top of the wastegate
3) line from the NO port to the turbo compressor
4) I left the line on the side of the HKS wastegate open

The car boosted up to 15 psi and keep on going so I let the throttle off. No matter how I adjust the ebc settings the car is still boosting too high. The weird thing is that my car fell slower. My car made 350 horse power at 10psi on a mustang dyno and now it fells much slower with the car boosting 15 psi and up. Nothing is mechanically wrong with the car. It still pulls hard but I want to be able to spin the tires at 80 mph like it use to at 10 psi.

 

ok basically the bottom port of the WG is still getting its own vac source. the top port will have the EBC inline with the WG and vac source for the top port.
I hope this makes more sense

 

When I did my profec b spec 2 install I did it exactly as the instructions said to do so. When we went out to test drive my car the wastegate would not open at all. After an hour or so of trying to figure it all out we went and hooked it up like it says for a internal gate set up and it worked perfect since then. Yes i am runing a external set up.

 

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

3) I put a 1.5 ft long line into the side of the wastegate and put a tee on the other end
a) one side of the tee went to the compressor side of the turbo
b) the other side of the tee went to the "NC" port of the valve unit (the port on the right side of the valve unit)

</TD></TR></TABLE>

right now you are teeing the pressure source for the wastegate and NC port. try hooking up NC directly to the turbo compressor, and hook up the bottom/side wastegate to the intake manifold so the wastegate and EBC sees same boost valve.... drive the car, set the START BOOST at 8 psi/.55bar since you have a 10 psi spring, and play with the boost settings 5% increase at a time. turn it up till you are at desired boost. then go back as turn up gain to eliminate dropping in boost.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hy_revs &raquo;</TD></TR><TR><TD CLASS="quote">
4) I left the line on the side of the HKS wastegate open

The car boosted up to 15 psi and keep on going so I let the throttle off. </TD></TR></TABLE>

you always need to hook up bottom port on wastegate. it always needs to see boost to regulate you boost. w/ out it you just boost to infinity reguardless if you have EBC or not. so hook it up to the intake manifold as i described above. plus, you can't lower boost beyond limitation of the wastegate spring. meaning for you, you cant go lower than 10psi of boost.

 

Thanks for all the advice. I will try and hook it up as you advise. Should I set the Start Boost by using the mode button to scroll to it and change the number using the Set **** or should I press the Set **** two times to get to the Start Boost mode. Again, thanks for all the great advice. I'm really near given up with this EBC.

 

What's the difference with taking the vacuum source from the manifold (I will tee into the fpr) or from teeing into the compressor side of the turbo? Aren't they the same source just with different vacuum response time?