unichip - tuning boost on the controller?

[satyr36]

How do i adjust how much boost the EBC lets through? On map A its fine, spikes to 7 and stays at 6... on map B though, man i dont think it tops out. I let off the gass once it gets past 10 in fear of my motor! lol


I want to adjust it down to 10psi or so... or is the only way by sending it off to have the whole piggyback unit programmed? (PITA)

[Knox Joe]

You cannot control the boost controller unless you're a Unichip tuner. Then you have to change it in the software.

The tune from Unichip adds a 13psi spike (they say it's to get the turbo spooling faster) that should settle back down to about 11. Seems kind of dangerous to me.

Also, you may have installed the BC wrong, but I think it's just their tuned in spike.

[satyr36]

well it def. goes over 13 (i think i let off before it tops out lol)

Can anyone take a picture of your EBC installed for me? im pretty sure i have it right, but who knows ~!

Ill try to get a pic of mine.

I have 1 of the 2 same sized nipples to the manifold, the big nipple to the WG and the 3rd one (small nipple) plugged

http://i4.photobucket.com/albums/y141/satyr36/DSC04067.jpg
http://i4.photobucket.com/albums/y141/satyr36/DSC04066.jpg
http://i4.photobucket.com/albums/y141/satyr36/DSC04065.jpg

[Knox Joe]

You have it hooked up wrong.

I have the third one hooked up. I'll go downstairs and take a pic.

here ya go.

http://i145.photobucket.com/albums/r205/wdell1010/bchookup.jpg

[Knox Joe]

Also remember the BOV has to have a vacuum source, so you're just tapping the BOV for the vac line. Don't just hook the BOV to the boost controller, it must have a line to tell it what to do.

[Wagonbacker9]

wtf? why would you need to connect the boost controller to the bov? if that port on the BC needs a vac source thats one thing, but... the bov has nothing to do with it.

[Knox Joe]

wtf? why would you need to connect the boost controller to the bov? if that port on the BC needs a vac source thats one thing, but... the bov has nothing to do with it.

No shit, Sherlock...

so you're just tapping the BOV for the vac line.


I just tapped the vacuum source for the BOV. He can tap that one wherever he wants, I was just showing him how I had it hooked up.

[Wagonbacker9]

wow with the hostility, I was just asking. the way it was worded I was confused...

[Knox Joe]

Not being hostile, a smart ass, definitely yes, but not hostile.

Sorry I was raised in a family of foul mouths. We all cuss like sailors.

[satyr36]

so hook the 3rd one (that i have blocked off) up to any vac source?

is the rest right? big nipple to the WG, the other to the manifold nipple ?

[Knox Joe]

No, yours is not correct at all.

You don't even have a line to the wastegate from what I can see. That's how you control boost.

Like in mine;

The left one goes to the wastegate, the top one goes to any vac source, and the right one goes to the crankcase ventilation.


Your left one goes to the mani, your right one goes to the BPV. That is not right at all. I think you are mistaking your stock BPV for your wastegate. The wastegate is on the turbo.

If I was there I could hook it up in 5 mins. That's what sucks about explaining this shit on the internet. Without being there to show you what everything is, it's going to be difficult.


Connect the one you have blocked off to the mani or any vacuum source, hook the big one on the right to the crank case ventilation, and hook the left one up to the wastegate. Make sure you re-route your hosing and give your BPV a vacuum source. You're going to need some t-taps, and may have to get some more hosing.

[satyr36]

read my OG post.. pic may look wrong, but i do have 1 to my WG, 1 to the top of my "manifold" which i ment crank case

if you look close, you can see my PBV goes directly to my brake booster line

http://i4.photobucket.com/albums/y141/satyr36/DSC040671.jpg

[Wagonbacker9]

read my OG post.. pic may look wrong, but i do have 1 to my WG, 1 to the top of my "manifold" which i ment crank case

if you look close, you can see my PBV goes directly to my brake booster line

http://i4.photobucket.com/albums/y141/satyr36/DSC040671.jpg
your red line there (as shown) is going to the vacuum source (intake manifold). you don't want to T into a vac line between the boost controller and the wastegate... where is the other side of the T running?

pull it all off, follow the model of the pic that was posted up here...

[satyr36]

OK. so i need to take red one off of my manifold, put it to the big one from my CAI line (from cai to crank case)

the one going to my WGA isnt T'd. its just connected through a butt connector type connection... if that makes sence. sorry im confusing myself now... not a T just a pass through. Didnt have enough silicon tube so i used a piece of the original black tubing and connected it to the blue

[Knox Joe]

Move your green one to where the red one is, move the red one to where you have the middle on plugged up, and add a new line from the right one (where your green line is coming out) to the crankcase ventilation.

[satyr36]

ok, think i understand now -_- ill get on it tomorrow

[Knox Joe]

Maybe this will help
http://i145.photobucket.com/albums/r205/wdell1010/tryintohelp3.jpg

Oh, and you don't want anything between the wastegate and the boost controller. Take off the tee, and run the wastegate directly to the boost controller, nothing else.

edit: just read your other post about it not being a tee, just keep the vac connector there to the wastegat and move that line to where you have the red one hooked up.

[satyr36]

thanks man. so im assuming this is why it was boosting to like +20 psi rofl

hoping on map b now it will boost to 10 or so not 20 :D

[Knox Joe]

thanks man. so im assuming this is why it was boosting to like +20 psi rofl

hoping on map b now it will boost to 10 or so not 20 :D

Yeah that's it man, the wastegate was not getting the right boost signal so it just let you go wide open, as much as the turbo can spin, lol. I had that happen once, uphill third gear roll on burnouts!

On map B you should spike 13, and hold about 10.5 to 11 psi.

[satyr36]

hrm that still seems kinda high for me? :( id like to max at 10 or under. guess i may have to send this POS out for tuning :(


would corksport power series exhaust allow more boost safe? or do i NEED fmic / built block

[Wagonbacker9]

Yeah that's it man, the wastegate was not getting the right boost signal so it just let you go wide open, as much as the turbo can spin, lol. I had that happen once, uphill third gear roll on burnouts!



followed by a couple nice sized holes in your block.....

[Knox Joe]

followed by a couple nice sized holes in your block.....

Not for me, I was running the J&S. Now I have alcohol injection and a J&S. I have no problem running 13 psi now. We'll see how long it lasts. I have about every bolt on though, so it may be fine. Only thing I am missing is an intake mani.

[Knox Joe]

hrm that still seems kinda high for me? :( id like to max at 10 or under. guess i may have to send this POS out for tuning :(


would corksport power series exhaust allow more boost safe? or do i NEED fmic / built block

You could just run a manual boost controller.

But yes, exhuast, FMIC and all that helps. I have just about everything now,and then some, and run pretty high boost on stock internals.

[satyr36]

i dont understand how FMIC and exhaust help the internals not break? isnt 13psi - 13psi?

guess im too much of a nub to cars

[satyr36]

i dont understand how FMIC and exhaust help the internals not break? isnt 13psi - 13psi?

guess im too much of a nub to cars

well.. turbos

[Wagonbacker9]

i dont understand how FMIC and exhaust help the internals not break? isnt 13psi - 13psi?

guess im too much of a nub to cars

basically flowing better, proper tuning, and colder plugs, lessens the chance of detonation.. which is essentially what ends up blowing the majority of the blocks you see with holes in them here... thats why with the J&S Safeguard, he can boost crazy high in "relative" safety. I say relative because eventually (maybe it'll take 100K miles, but it WILL happen) you will have some kind of bottom end failure if you're pushing high boost to stock internals.

[LASERBLUE135]

sub in case I ever hook up the mbc again.