Jump to content
SAU Community

Installing A Manual Boost Controller


R338OY

Recommended Posts

I'm only guessing, but maybe the hoses to your boost T are back the front?

I followed Shorty_01 pics/notes in the post above dated Oct 2. 2010, also I have the same turbotech and it worked a treat.

Me being me, I suggest double check the instructions that came with boost T, again compare pics peeps have posted, re-check the hoses as they go through / come out of that rubber sleeve in case they have twisted around and not in the sequence expected.

Link to comment
Share on other sites

yeah i agree with ^^. Sounds like the MBC is backwards.

If you are getting the exact same boost as before installation then it is having no impact. Either it faulty internally or backwards. (assuming everything else is connected properly)

When you say .5bar what is giving you that reading? the stock boost gauge is not in bar, and the stock wastegate is closer to .4 bar. If not using an aftermarket boost gauge i recommend installing one before installing the mbc so you can closely and accurately measure the changes as its easy to go into overboost which may cause other issues even though the ecu does have safe guards in place.

Link to comment
Share on other sites

I currently have a Greddy boost gauge. 

I’m confident that it’s resdy correctly. Well as confident as I can be!

checked the MBC, and the hoses are connected correct. Double checked. 

Only guess is a faulty MBC. 

Damn.. 

Link to comment
Share on other sites

I guess my next step would be to remove the mbc and just run the hose straight from cooler to gate and see if theres any change.

that should give you basic wastgate pressure of about 5-6psi (below .5bar)

How is the mbc conected directly to the wastegate? I'd think you would have to use a hose.

Check All connections again make sure they are all zip tied or clamped really tight. triple check the blocked hose as well.

What was the set up before you installed this? factory solenoid as in the OP pics?

then maybe return it to stock to see if there is any difference and make sure the two stage solenoid is working as normal, 5psi then 7psi (close to .5bar)  This will show that you can get boost higher then the gate spring.

 

And show us some more pics, might be able to spot something.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Slimline sub on the rear parcel shelf is doable. Pioneer TS-WX140DA is only 70mm high.   
    • People like Johnny Dose Bro might be laughing at my post because I accidentally added 100mm to my numbers. 350-355 is indeed the lower limit. 450 is off-road Skyline spec.
    • What is the "compromise" that you think will happen? Are you thinking that something will get damaged? The only things you have to be concerned about with spherical jointed suspension arms are; Arguments with the constabulary wrt their legality (they are likely to be illegal for road use without an engineering certificatation, and that may not be possible to obtain). A lot more NVH transmitted through to the passengers (which is hardly a concern for those with a preference for good handling, anyway). Greatly increased inspection and maintenance requirements (see above points, both).   It is extremely necessary to ask what car you are talking about. Your discussion on strut tops, for example, would be completely wrong for an R chassis, but be correct for an S chassis. R32s have specific problems that R33/4 do not have. Etc. I have hardened rubber bushes on upper rear control arms and traction rods. Adjustable length so as to be able to set both camber and bump steer. You cannot contemplate doing just the control arms and not the traction arms. And whatever bushing you have in one you should have in the other so that they have similar characteristics. Otherwise you can get increased oddness of behaviour as one bushing flexes and the other doesn't, changing the alignment between them. I have stock lower rear arms with urethane bushes. I may make changes here, these are are driven by the R32's geometry problems, so I won't discuss them here unless it proves necessary. I have spherical joints in the front caster rods. I have experienced absolutely no negatives and only positives from doing so. They are massively better than any other option. I have sphericals in the FUCAs, but this is driven largely by the (again) R32 specific problems with the motion of those arms. I just have to deal with the increased maintenance required. Given how much better the front end behaves with the sphericals in there.....I'd probably be tempted to go away from my preference (which is not to have sphericals on a road car, for 2 of the 3 reasons in the bulleted list above), just to gain those improvements. And so my preference for not using sphericals (in general) on a road car should be obvious. I use them judiciously, though, as required to solve particular problems.
    • Easiest way to know is to break out the multimeter and measure it when cold, then measure all the resistances again once it gets hot enough to misfire. Both the original ignitor and the J Replace version. Factory service manual will have the spec for the terminal measurements.
    • Yes that sounds right. Cars currently in the shop for the engine work. Will need to remeasure .. but yes I think I must be targeting 45cm from fender. 
×
×
  • Create New...