Manual Boost controller.

[ChIoVnIdCa]

Do they go pre or post throttle body... ?

[drummersteve7]

wow you got some researching to do...

inline with your wastegate!
aka from intake manifold vacuuuum to MBC to Wastegate

vacuum as long as its vacuum.

[ChIoVnIdCa]

inline with your wastegate!

Yeah no shit.... Pre and post throttle body is different. When the throttle body is closed no boost. For a split second boost until bov does its job pre tb. Ive read pre throttle body and post. Some say you need it pre or you will have spikes.. Some say you do not...

[drummersteve7]

ooo the noobs of the boost!

[ChIoVnIdCa]

ooo the noobs of the boost!

So I see you have nothing of use to contribute.

[ChIoVnIdCa]

Pre tb


pre tb


post tb



Pre (this one specifies pre tb plate)




Conflicting info here.

[drummersteve7]

I have never hooked up a pre. due to fact my turbos never have the nipple on them. so I run post tb.
of course I have only run DSM turbos to this point.
as far as contirbuting well if you can't have fun, then oh well!
you should see some of the questions that have been asked.

either way tho it is a manual boost controller.
chance for spike is there either way.

[WilliamW]

Your wastegate should be run off of the most accurate reading that your car sees. That is usually a nipple on your charge pipe (PRE TB, but very close to it). The reason for this is because after your charger compresses the air there will almost always be a psi drop through the system, ultimately it's not a big deal running off of the turbo directly but it won't take into account the pressure drop. So 10 PSI at the turbo could be like 8-9 at the TB, so you'd have to crank it up to 11-12 to actually see 10 in your engien.

[ChIoVnIdCa]

I have never hooked up a pre. due to fact my turbos never have the nipple on them. so I run post tb.
of course I have only run DSM turbos to this point.
as far as contirbuting well if you can't have fun, then oh well!
you should see some of the questions that have been asked.

either way tho it is a manual boost controller.
chance for spike is there either way.

I have no port on my turbo either... What would you recommend for a boost controller over the manual one?

[ChIoVnIdCa]

Your wastegate should be run off of the most accurate reading that your car sees. That is usually a nipple on your charge pipe (PRE TB, but very close to it). The reason for this is because after your charger compresses the air there will almost always be a psi drop through the system, ultimately it's not a big deal running off of the turbo directly but it won't take into account the pressure drop. So 10 PSI at the turbo could be like 8-9 at the TB, so you'd have to crank it up to 11-12 to actually see 10 in your engien.

Oh I see....
So wastegate to boost controller to pre throttle boost source.
BOV goes post throttle body along with the boost gauge.

[Boost_Lee]

I go

boost only source (preferably off the compressor housing) -> Boost controller -> Wastegate/Wastegate actuator

This provides the most constant reading IMO. The further you get from the turbo, the more chances that you will have variables skew your readings.

Oh and if you are considering a MBC, Hallman all the way. Cheap and solid

[WilliamW]

I have a Hallman manual boost controller (even though I'm not boosted yet ), it still cost me around 100 bucks. It's the piece of equipment that makes your turbocharger NOT blow up your engine.... Don't go ebay cheap on it.