Stage-1 and a boost controler

[dfunkdj]

Hello all,
I am thinking about getting a aftermarket boos controler for my Turbo Pt. I already have stage-1 on it and have heard that you cant put a boost controler on with a stage kit. Is this true or has someone already done it??? If so which one due you have?? I am thinking of getting the blitz sbc i - d or apexi on Blitz looks easer to install apexi you have to wire into the Pc and not sure it will show wich wires to use.

Thanks for any info
Don
Tampabay Pt cruisers

[Jason_L]

yes, you can. to get the best results and easiest set-up, you'll want to bypass that WGA solenoid..

Your BC will need a pressure source. there's a black line for the TIP sensor (which isn't used anyways with S1) that connects right in front of the TB. Either tee into that line, or pull it and use the now available nipple.

Next, you'll need to run a line from BC to your WGA. There's a brown line that connects to the WGA. pull it off and cap. Run your new line from the BC to the nipple where the brown line was attached to. The PCM now has no control over your boost, and you're using "clean" lines for pressure, etc.

There's numerous people out there getting over 300, 400,and even 500 hp out of these motors (and PCM), with the only electonic trickerey needed being at the MAP sensor - but unless you're looking to ge over 18psi you should be fine.

[At58]

quote:Originally posted by Jason_L

yes, you can. to get the best results and easiest set-up, you'll want to bypass that WGA solenoid..

Your BC will need a pressure source. there's a black line for the TIP sensor (which isn't used anyways with S1) that connects right in front of the TB. Either tee into that line, or pull it and use the now available nipple.

Next, you'll need to run a line from BC to your WGA. There's a brown line that connects to the WGA. pull it off and cap. Run your new line from the BC to the nipple where the brown line was attached to. The PCM now has no control over your boost, and you're using "clean" lines for pressure, etc.

There's numerous people out there getting over 300, 400,and even 500 hp out of these motors (and PCM), with the only electonic trickerey needed being at the MAP sensor - but unless you're looking to ge over 18psi you should be fine.

Jason can you give a few more details? I have a Hahn MBC and am wondering where to put the line from the WGA.

[ptgtcb]

quote:Originally posted by Jason_L



...there's a black line for the TIP sensor (which isn't used anyways with S1).......

Where did you get this info?

[Jason_L]

quote:Originally posted by ptgtcb

Where did you get this info?

I've read it repeatedly on this and the srt forums.. if you dont't want to pull the TIP line though, just tee off it

[ptgtcb]

I have not read anywhere that the throttle inlet presure (tip) sensor is not used with stage I and was wondering where you got this info? I also heard rumor that the down stream o2 sensor readings are not used. I have seen no confirmation of either of these rumors. I don't know of any scanner other than a DRB that can access these sensors to see if they function and if they function is the PCM using the info? [:I]

[Jason_L]

quote:
Jason can you give a few more details? I have a Hahn MBC and am wondering where to put the line from the WGA.

so far, the best source I've used for the MBC is the TIP line right in front of the throttle body. if you follow the intake manifold, you'll see something similar to this:
intake manifold > throttle body > plastic pipe (about 3 or so inches long)> rubber hose (big one, about 2.5 inches diameter) > intercooler

on the plastic pipe right at the throttle body, there's black plastic line. this runs to the solenoids (up by the passenegr side shock tower) and then to the tip sensor on the firewall. Connect a new vacuum line to this plastic pipe (either unplug the tip line from the pipe and hook your line up to the nipple it was using, or leave the TIP line connected and just tee off it).
Unplug the brown line off the WGA itself (plug that brown line). Connect the other end of that new vaccum line to the WGA, where the brown line orginaly connected to. Now just install your MBC in that new line..
People have tried various other pressure sources, and so have I, but this has been the best that I have found so far. I haven't yet tried the manifold side of the throttle body though, and i'm thinking it would be the best if the vacuum doesn't cause any problems.

[Jason_L]

quote:Originally posted by ptgtcb

I have not read anywhere that the throttle inlet presure (tip) sensor is not used with stage I and was wondering where you got this info? I also heard rumor that the down stream o2 sensor readings are not used. I have seen no confirmation of either of these rumors. I don't know of any scanner other than a DRB that can access these sensors to see if they function and if they function is the PCM using the info? [:I]

I only have second hand knowledge of these 2 as well (form here and the srt forums - I actually read it here first though)... then again, almost any s1 claims beyond the little sales blurb and bullet list mopar gives are almost all anecdotal anyways.. 3bar's contributions to the forum obviously aren't covered in this statement

the srt guys with s1 and no cat are not throwing codes though, so i consider this decent enough proof of the downstream O2. I am not sure how to judge the TIP though without an OBD scanner, and even then it would probably not be conclusive. Some well respected tuners on the srt forums have supported the "no TIP" claim though, so until I can find proof myself I am tenativley taking their word (lol I don't usually follow blindly like this though). I have ran with and with out it, and saw no differences either way. Until I find something more conclusive, I try to qualify my "no tip" statements with "or you can just tee of it"..

[dfunkdj]

Jason is this set up for a Electronic controler or a Manual Controler??

Don

[Jason_L]

I use it for a MBC, but it should be the same for an EBC in general - you need a pressure source to the boost controller, and a line to the WGA. There's several potential boost sources, and there's plenty of people who prefer one over the other. I think in the end it's just trying a few of them and seeing which works best for you.. once you look over the vaccum diagram under the hood, and think awhile on it, it should take a lot of the mystery away.