Can you put the profec B spec II in your change holder the one that folds out on 5th gens or does it not fit...also just to get the routing right for the hoses

Tee of this blue hose (look down) and connect it to the OUT then tap the pipe before the intercooler going into the turbo and plug that to the IN then use the 3 way tee and run that from the intake manifold to the back of the unit?


Resized massive freak picture



Modified by 95excoupe at 9:56 PM 12/10/2003

 

TTT^

 

The spec II is really really small so it should fit just about anywhere. As far as you hook up though no, you don't want to just T the blue hose. The idea is to interupt the blue hose so you can change the amount of pressure that the wastegate is seeing. I'd tell you exactly what to do but I don't have my manual handy sorry.

 

So do I go right from the wastegate to the OUT and plug up the whole on the turbo I really dont understand....

 

Assuming that the Spec 2 installation is the same as the older one, these pictures may help:

 

Yea I got that I just dont get what to do with where the blue hose goes into the turbo do I cap that off?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95excoupe &raquo;</TD></TR><TR><TD CLASS="quote">Yea I got that I just dont get what to do with where the blue hose goes into the turbo do I cap that off?</TD></TR></TABLE>

No, you use it. It's connection (2) charge pipe/pressure source.

 

No you don't cap it off. You can either take a reading from the charge pipe or from the turbine housing. So what you would do it take the blue hose and cut it in half. If you're looking at the older diagram provided. The hose from the houseing would go to the 2 fitting. Then go from the 3 fitting to the waste gate actuator. You don't need to tap your piping since you can get a pressure reading off the houseing. Does that make sense?

 

Yes thank you that makes it wayyyy easier...OK one more question though does it display boost in real time or does it just flash your peak??

 

So which would be better, the charge pipe or the turbo?

 

First question the boost control displays boost in real time as well as records your peak. It will display in bar or psi. The psi display is a little funky becuase it will list it as follows

115 = 11.5 psi

so be aware of that.

Questions 2 which is better the piping or the houseing. They are about the same really since most people tap their piping right after the houseing. I say use the housing if it's provided. Now this is NOT the reading for boost pressure that will be displayed on the boost controller. That comes from the manifold. Which is the reading you want since it's mostly end pressure that your tuning for. The advantage to taking a reading off the housing/piping for the boost cylinoid (my spelling sucks) is this. As the cylinoid reads pressure from the housing it's checking that against some preset levels. Levels that you set on the boost controler. One of those levels is when to start opening the wastsgate. If your taking your pressure reading off the housing/piping you get and imediate reading thus allowing the wastegate to open sooner and you avoid boost spikes. At least this is what I saw when I changed from the manifold to the houseing for my cylinoid pressure reading. Hope this answers the questions.

 

You can cap off the blue hose if you want. Thats what I did to mine didn't do anything. I didn't like the Profec B it's really confusing.

 

Thanks lucky smurf much obliged

 

No problem. Let me know if you have any problems. That boost controller is funky until you figure it all out.