Whats The most accurate way to set boost?

[grdsm]

What is the most accurate way to set a manual boost controller? I have a aftermarket boost gauge, bigger turbo, egr block off, external wastegate aftermarket bov..... I would like to know what is the most accurate way to set my mbc. I seems that my wastegate opens roughly around 15 and 18 psi. and it boost up fatser at time then others.

 

[1992awdlaser]

Just wanted to say, that is impossible for the WG diaphragm to see VACUUM, if hooked up to MBC. Most MBC/good ones/, consist of ball and spring. Regardless where the signal is coming from/Compressor housing, or IM/, air pushes on the ball, which is followed by the spring. When the spring moves enough, gives the air the possibility to escape thru the OUT fitting on the MBC and enter the WG--- hitting on the diaphragm, which sits underneath the spring/s of WG.

The other way around is not possible, because as soon as you lift your foot off the gas/not even fully/, but bellow spring rate of WG and MBC, the ball sits/seals on the inside of IN fitting of MBC and therefore acts like one way valve.

Good point.

 

[viprez586]

When the intake is under vacuum, the entire intake system is under vacuum.

Yep, this is like blowing air over the top of a soda bottle.
The air being blow over it creates a suction effect and pulls air from the inside of the bottle thus creating a vacuum effect.

(Real-world relativity helps people learn easily


Oh and I'm having a good Friday thanks!

I dont have a nipple on my j pipe, so i should use a source off the intake? Im using the gm maft set up if that helps. Thanks

Drill and tap your J-pipe for a fitting. Use a barb fitting from your local hardware store, thread it in and seal it with RTV(Room temperature vulcanizing). I say this because it's about 0* here so if your in a cold climate give it time to cure.

This will get many people curious when looking under your hood however. They usually point and ask or poke it and then ask.

 

[grdsm]

I am running it just as the info I got from this forum.
http://www.dsmtuners.com/forums/art...-speed-shop-vacuum-diagram-removal-1g-2g.html

I do NOT have a j-pipe and do not want to make hole for a fitting close to my T4 turbo if I canget the same results off of the intake. Just making sure there is not another way to run it. I am running an exeteral wategate with a vened bov I was just wondering if I should change my setup to a different way

I don't need some fake ass mechanic to do it for me...

 

[MrBoxx]

This thread went into redundancy days ago. I think it's time to stop the madness now.

If you have a question regarding the appropriate place to put your boost controller, you can read this entire thread and make your own decision. As long as you don't tap the BOV line.