3S-GTE JDM 3rd Gen Turbo Engine MBC.... always spiking ?

ShAwTWiN · 02-27-2009, 05:44 PM

Hi,

First, sorry for my poor English... it's not my first language.

Last summer we've(me and mr2rhd) installed the Pro-Z(from EMS) MBC in-cabin(in the sub-box behind the driver seat --> JDM). The first night went good... it was set and steady at 14psi. After that night, nothing was right.... it kept spiking at 20-22psi at full boost. Thinking that a hose was not properly fixed, we've rechecked everything..... Nothing loose. Scared of that, I decided to go back to stock.

WTF happened ?

PLEASE HELP ! (pictures of working MBC setup are VERY welcome!)

Mat

Picture of the Pro-Z MBC from EMSpowered.com <----- Great Site !!!!

TreyMR2 · 03-02-2009, 06:26 PM

I'm having a very similar situation as you. Thats actually my car in the pic you posted. Mine spikes up to 22ish with it on and 15psi when I went back to stock. It used to run 9psi stock when I first did the swap. I don't know what my problem is. I had that boost controller set at 15 for about a year with no problems then all the sudden this. I'm really leaning away from it being the controller though. I kinda wanna see what ends up being the cause of your problem. Maybe it'll help me.

John B · 03-15-2009, 04:01 PM

Me to just started today. Hit fuel cut 18-20 psi was set at 15psi anyone find out why yet?

John B · 03-16-2009, 06:07 PM

I got it the vacume cap on the waste gate actuator blow apart. Anyone know where to get better vacume caps?

Luni · 03-16-2009, 06:09 PM

I always just use a line that fits on the actuator, and I put a bolt in the end and clamp it down. Vacuum caps get owned by the heat from the turbo.

I was going to say Id wager thats both your guys' issue.

02-27-2009, 05:44 PM	#1 (permalink)
ShAwTWiN No Skills Join Date: Feb 2009 Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	MBC.... always spiking ? Hi, First, sorry for my poor English... it's not my first language. Last summer we've(me and mr2rhd) installed the Pro-Z(from EMS) MBC in-cabin(in the sub-box behind the driver seat --> JDM). The first night went good... it was set and steady at 14psi. After that night, nothing was right.... it kept spiking at 20-22psi at full boost. Thinking that a hose was not properly fixed, we've rechecked everything..... Nothing loose. Scared of that, I decided to go back to stock. WTF happened ? PLEASE HELP ! (pictures of working MBC setup are VERY welcome!) Mat Picture of the Pro-Z MBC from EMSpowered.com <----- Great Site !!!!

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03-02-2009, 06:26 PM	#2 (permalink)
TreyMR2 Gen3 swap DONE!! Join Date: Jun 2007 Posts: 2,472 Thanks: 30 Thanked 60 Times in 58 Posts iTrader Rating: (10/100% )	I'm having a very similar situation as you. Thats actually my car in the pic you posted. Mine spikes up to 22ish with it on and 15psi when I went back to stock. It used to run 9psi stock when I first did the swap. I don't know what my problem is. I had that boost controller set at 15 for about a year with no problems then all the sudden this. I'm really leaning away from it being the controller though. I kinda wanna see what ends up being the cause of your problem. Maybe it'll help me.

03-15-2009, 04:01 PM	#3 (permalink)
John B Cage Fighter Join Date: Apr 2006 Location: CT Posts: 215 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (1/100% )	Me to just started today. Hit fuel cut 18-20 psi was set at 15psi anyone find out why yet?

03-16-2009, 06:07 PM	#4 (permalink)
John B Cage Fighter Join Date: Apr 2006 Location: CT Posts: 215 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (1/100% )	I got it the vacume cap on the waste gate actuator blow apart. Anyone know where to get better vacume caps?

03-16-2009, 06:09 PM	#5 (permalink)
Luni Cage Fighter Join Date: Oct 2005 Location: Salt Lake City Utah Posts: 3,213 Thanks: 10 Thanked 130 Times in 110 Posts My Google Map iTrader Rating: (8/100% )	I always just use a line that fits on the actuator, and I put a bolt in the end and clamp it down. Vacuum caps get owned by the heat from the turbo. I was going to say Id wager thats both your guys' issue.