What's the best way to hoop up my MBC? - 3000GT/Stealth International Message Center

edhead81 · 05-01-2008, 02:02 PM

I just picked up a TurboXS MBC and I'm itching to install it but first, I'd like to know the best setup for it. I'm thinking of just totally removing the stock boost control setup and running the hose from the back of the Y-pipe to the MBC and out from there to a T-fitting and running hoses from the fitting to the wastegates. Does that sound doable? Is there a difference if the two lines were of different lengths?

lawdogg · 05-01-2008, 02:05 PM

Yep that's how you do it.

Equal hose length to the wastegates = even boost regulation.

Oh and don't forget to plug the nipple on your rear intake hose after you remove the line from the stock boost solenoid.

edhead81 · 05-01-2008, 06:35 PM

Quote:

Originally Posted by lawdogg

Yep that's how you do it.

Equal hose length to the wastegates = even boost regulation.

Oh and don't forget to plug the nipple on your rear intake hose after you remove the line from the stock boost solenoid.

Good call. BTW, what size vacuum cap will I need for the rear intake hose?

lawdogg · 05-01-2008, 08:10 PM

I usually put a screw in it.

I would guess 1/4" or 3/16" but I'm not sure. Now's a good time to look at dejon hard intake pipes.

92RT-TT · 05-01-2008, 08:27 PM

can someone get a picture.. not a diagram showing where said hose that need to be capped on the rear intake hose? Is that one of the two stock lines that normally would go to the stock boost controller?

Struggly · 05-02-2008, 04:31 AM

Quote:

Originally Posted by 92RT-TT

can someone get a picture.. not a diagram showing where said hose that need to be capped on the rear intake hose? Is that one of the two stock lines that normally would go to the stock boost controller?

It's in the vacuum hose reduction thread. The vacuum hose reduction: walkthrough and pics

Scroll down and you'll see a photo of the rear intake pipe with the nipple capped.

Clint

edhead81 · 05-04-2008, 07:28 PM

I went ahead and installed it, running it inline with the Y-pipe and tee. I deleted the vacuum hoses to the stock boost solenoid and the hose that ran to the rear inlet pipe and capped all the nipples. I retained the stock wastegate lines and tee. I noticed that although the distance to the rear wastegate actuator is much shorter, a large portion of the line to the front is actually hard line and the length of the soft lines for the front and rear are about the same. However, does the length of hose running to and out of the MBC make a difference? I can easily trim a few inches off of them.

I started off with the boost controller fully closed so I was running wastegate pressure (~5psi) and slowly started opening it until it peaked at 13psi.

lawdogg · 05-05-2008, 04:30 AM

edhead - Sounds good! How does it feel?

To answer your questions, the length of hose coming into the MBC does not really matter - probably shorter is better. The hard line running to your front wastegate can easily be eliminated and replaced with vac. hose in equal length to the hose to the front wastegate - but if you don't feel like doing that, it's fine.

edhead81 · 05-05-2008, 09:10 AM

Quote:

Originally Posted by lawdogg

edhead - Sounds good! How does it feel?

To answer your questions, the length of hose coming into the MBC does not really matter - probably shorter is better. The hard line running to your front wastegate can easily be eliminated and replaced with vac. hose in equal length to the hose to the front wastegate - but if you don't feel like doing that, it's fine.

Feels fine. It doesn't feel like it's pulling much harder than before but it's been warm here lately and it's only about a 2psi increase.

lawdogg · 05-05-2008, 09:11 AM

Quote:

Originally Posted by edhead81

Feels fine. It doesn't feel like it's pulling much harder than before but it's been warm here lately and it's only about a 2psi increase.

This is on a real boost gauge, correct?

05-01-2008, 02:02 PM	#1 (permalink)
edhead81 Turbo Lover Join Date: Dec 2006 Location: Saratoga Springs, NY Drives: '92 Dodge Stealth TT Trader Rating: (1)	What's the best way to hoop up my MBC? I just picked up a TurboXS MBC and I'm itching to install it but first, I'd like to know the best setup for it. I'm thinking of just totally removing the stock boost control setup and running the hose from the back of the Y-pipe to the MBC and out from there to a T-fitting and running hoses from the fitting to the wastegates. Does that sound doable? Is there a difference if the two lines were of different lengths? __________________

05-01-2008, 02:05 PM	#2 (permalink)
lawdogg Here for the tuna. Join Date: Jul 2003 Location: Williamsport, PA Drives: The Speed Limit Trader Rating: (60)	Re: What's the best way to hoop up my MBC? Yep that's how you do it. Equal hose length to the wastegates = even boost regulation. Oh and don't forget to plug the nipple on your rear intake hose after you remove the line from the stock boost solenoid. __________________ 2002 WJ -- 1994 VR-4 -- --Canon Rebel XTi Green Cars FTW Last edited by lawdogg : 05-01-2008 at 02:18 PM.

05-01-2008, 08:10 PM	#4 (permalink)
lawdogg Here for the tuna. Join Date: Jul 2003 Location: Williamsport, PA Drives: The Speed Limit Trader Rating: (60)	Re: What's the best way to hoop up my MBC? I usually put a screw in it. I would guess 1/4" or 3/16" but I'm not sure. Now's a good time to look at dejon hard intake pipes.

05-01-2008, 08:27 PM	#5 (permalink)
92RT-TT Mr. Cheese Join Date: Oct 2007 Location: Hudson, WI Drives: 92 RT/TT & 92 RT/TT Trader Rating: (14)	Re: What's the best way to hoop up my MBC? can someone get a picture.. not a diagram showing where said hose that need to be capped on the rear intake hose? Is that one of the two stock lines that normally would go to the stock boost controller? __________________ 1992 Dodge Stealth RT-Twin Turbo 64,000 miles, Stored Winters, AEM Tru-Boost, Greddy Type S BOV, DNP Y-Pipe and Intake Pipes, Palm MMCD, Tein S-Tech Springs, Brembo Rotors, MSD Wires, K&N FIPK, EGR Delete, Vacuum Reduction, Cianci 3 Gauge A-Pillar, 5zigen FN01R-C 18x9.5's wrapped in BFG KDW 265-35-18's. 13% Tint, 12 Disc CD changer, Greddy Turbo Timer.

05-04-2008, 07:28 PM	#7 (permalink)
edhead81 Turbo Lover Join Date: Dec 2006 Location: Saratoga Springs, NY Drives: '92 Dodge Stealth TT Trader Rating: (1)	Re: What's the best way to hoop up my MBC? I went ahead and installed it, running it inline with the Y-pipe and tee. I deleted the vacuum hoses to the stock boost solenoid and the hose that ran to the rear inlet pipe and capped all the nipples. I retained the stock wastegate lines and tee. I noticed that although the distance to the rear wastegate actuator is much shorter, a large portion of the line to the front is actually hard line and the length of the soft lines for the front and rear are about the same. However, does the length of hose running to and out of the MBC make a difference? I can easily trim a few inches off of them. I started off with the boost controller fully closed so I was running wastegate pressure (~5psi) and slowly started opening it until it peaked at 13psi.

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05-05-2008, 04:30 AM	#8 (permalink)
lawdogg Here for the tuna. Join Date: Jul 2003 Location: Williamsport, PA Drives: The Speed Limit Trader Rating: (60)	Re: What's the best way to hoop up my MBC? edhead - Sounds good! How does it feel? To answer your questions, the length of hose coming into the MBC does not really matter - probably shorter is better. The hard line running to your front wastegate can easily be eliminated and replaced with vac. hose in equal length to the hose to the front wastegate - but if you don't feel like doing that, it's fine.