2.3 Turbo Mods

Topic: 2.3 Turbo Mods (Read 6343 times) previous topic - next topic

2.3 Turbo Mods

Reply #30 – November 26, 2007, 11:49:42 AM

t3skidoo what do i have to do with the BCS??? and what is it haha

2.3 Turbo Mods

Reply #31 – November 26, 2007, 12:07:13 PM

Quote from: PremiumFuelOnly;189694

a wastegate bleeds off escess exhaust gas when it reaches the certain pressure you set it at. It keeps the turbo from spinning indeffinately until something blows. It does it the whole way up the RPM range, it's what creates the wooshing sound of a turbo... if anyone reads MM&FF they did this amazing right up on how they put a wastegate on a centrifugal supercharger, it allowed them to run the smallest pulley(highest pressure) and then set the wastegate at like 15 PSI so that way the pressure was at almost full boost at like 1/4 throttle

BOV just releases the pressure in the intake tract so that was you doint get a revers pressure when the throttle blades slam closed between shifts, it lest the pressure escape so that way the turbo can spool up a lot faster, takes a lot of stress off of the bearings the two can't be interchanged wastegate is used in the "hot" section of the turbo and is related to the pressure from the exhaust gasses the BOV is in the intake andd is on the "cold" side

am i right????maybe?? lol
i think i have a grasp on the difference between the two

is their anthing that i missed out??? i here to learn!!

Ahh yes there is something you left out. That would be a Bypass Valve or BPV it works the same as the BOV you have listed but instead of venting the air into the open it diverts it back into the inlet side of the turbo. This is great for motors like the 2.3T that way you don't confuse the computer with missing air. Also if you run the tubing right the air escaping will actually help you build boost quicker. To give you an example on my car running mine as a BOV still better than factory after shift boost response. But running it as a BPV with the hose venting directly into the front of the turbo inlet after a shift I get back into it to find I already have 5PSI working in my favor. That is what I call free power.

BCS - boost control solenoid aka the party pooper

Reply #32 – November 26, 2007, 02:54:04 PM

Quote from: PremiumFuelOnly;189740

t3skidoo what do i have to do with the BCS??? and what is it haha

The BCS is the black gizmo on the PS firewall near the strut tower. It easy to find, if you follow the vacuum lines from the turbo to the firewall. You actually don't need to know where it is, just disconnect the two lines from the turbo (at the compressor inlet), connect one piece of hose at those two points. The length of hose matters, so experiment. Make sure you have premium fuel in the tank and the knock sensor connected when testing. And have fun.

2.3 Turbo Mods

Reply #33 – November 26, 2007, 09:35:03 PM

oh ok so i just connect the two ports and essentially override the BCS? Now a BCS controls how much boost is created right?? and it's not adjustable. So if i override it then what happens to the boost?? Is it going to harm anything, i mean i want to make some power, but i also don't want to blow anything.

a BPV looks like a serious possiblity, forced 4 has a tube with an inle for the BPV, but where do i mount the actuall BPV???

2.3 Turbo Mods

Reply #34 – November 26, 2007, 10:16:48 PM

You can build a BPV kit for cheaper than that Forced4 setup. I bought the kit and we pretty much didn't use any of it except for the hoses. lol. I used to have all the links to most of the parts to build it... but Firefox killed all my bookmarks so I can't help you at the moment.

These guys have most of the parts...
http://www.forgemotorsport.com/content.asp?inc=terms

I would invest in an intercooler setup before upping the boost though...

Oh and the BPV is usually mounted on the intercooler or the piping as conveniently close to the throttle body as possible.

Here's a pic of my old setup... I'll see if I can find a better pic.

2.3 Turbo Mods

Reply #35 – November 26, 2007, 10:39:52 PM

oh nice thanks Ether947 i'm checking the site out now...

2.3 Turbo Mods

Reply #36 – November 27, 2007, 01:00:52 AM

The BCS is what limits the boost in the upper gears. Without any other mods, it's likely you wont hit more than 18 psi.

An intercooler is always a good idea but probably isn't necessary for preliminary testing. Remember, premium fuel, make sure the KS is connected. Testing when the weather's cold will add a margin of safety and is also fun.

2.3 Turbo Mods

Reply #37 – November 27, 2007, 09:00:05 AM

You can also see my BPV if you scroll down in my sig.

2.3 Turbo Mods

Reply #38 – November 27, 2007, 12:09:54 PM

oh ok thanks guys, what length of hose should i use??? does the length depend on how much boost i wil make???

2.3 Turbo Mods

Reply #39 – November 27, 2007, 02:16:37 PM

The length of hose depends on how much you need to mount the BPV were ever and run tubbing to and from it. It is really up to you.

2.3 Turbo Mods

Reply #40 – November 27, 2007, 11:16:32 PM

oh ok thanks guys!

i was looking at a gilis valve, now am i correct in assuming that it does the same thing as the mod t3skidoo was talking about, except you can control the boost better???

2.3 Turbo Mods

Reply #41 – November 28, 2007, 12:46:54 AM

There's one thing I haven't mentioned, you'll get better throttle response using just a hose. The nice thing about the Gillis is that you can easily change the boost level.

2.3 Turbo Mods

Reply #42 – November 28, 2007, 02:36:15 PM

I use a Hallman Pro manual boost controller on the wifes Talon, works good and holds the settings. It's also adjustable without using any wrenches.

2.3 Turbo Mods

Reply #43 – November 28, 2007, 07:10:41 PM

thanks for the info guys, i'm prob just going to shell out the $48 for the gillis, that way i can atleast control my boost, thanks for the help!!

2.3 Turbo Mods

Reply #44 – December 06, 2007, 09:17:30 PM

Gillis is a great bang for the buck deal. With an IHI wastegate actuator, I can control my holset anywhere from about 10 psi to 30+ psi. Took out a headgasket at the 32psi mark. My own fault though. Using stock injectors with high boost can get ugly quick, LOL! My advice if you want to go further than just small mods: GET A WIDEBAND. You at least get some warning before things go bad.

Oh yeah, I run a bov that vents to atmosphere (FMIC with 3" piping) Except for the rich spike on the wideband, it really isn't that noticeable. FYI.