jons3rdgen

I want to get a boost controller for my car with stock twins and a full three inch exhaust, fuel upgrade, larger intercooler, cold air induction, and boost and air/fuel gauges. My question is I will be getting a power fc in the next month but I want to be driving it now without having to worry about boost spiking, what manual boost controller do I need and how hard are they to install. I don't think it is that hard and do name brands make a difference? Thanks for any help.

7racer

you can do a search for "boost controllers and manual" to get the info that you need.

if you advance search for the user name "damian"...and "boost controller" you can see his excellent write-up.

here you go...
https://www.rx7club.com/forum/showth...ost+controller

jons3rdgen

thanks for the link

afterburn27

iTrader: (5)

The boost controller(s) should control any boost spikes, but you will still have to worry about boost creep. Personally, I am running a full 3" open exhaust and an open intake with dual hallman pro-RX's and I do not get any boost creep, even on cold nights. For many other people it has been a different story...

lilroach

are there any conflicts using a manual controller and the PFC?

rynberg

No.

bleung

You could try controlling boost with the pfc before spending money on a boost controller. It might require using a larger wastegate line pill

AgentSpeed

I run a dual stage XS HP Boost Controller. I've been satisfied so far.

luizajeff

I have PFC and dual Hallmon Pro controllers, they work great but don't have the options electric controllers have though. Happy.

z4csl428

im running a DNA manual and it works fine i wish i had easy access/control like an electric but hey its not that expensive and you set it and it does what you want....

jayk

Anybody have trouble with the boost level fluctuating with outside temperatures? I installed the damian style boost controller using joe-p's and found that I lost 1psi recently when the outside temps were up above 90.

adam c

iTrader: (2)

Boost controller for under $10. I works very well, just don't install the pre-spool controller .

http://www.robrobinette.com/boost_controller.htm

DaveW

IMO, that probably relates to system efficiency - the intake/turbo/exhaust system is maxed out and can't produce more boost - the controller shouldn't be affected by the temperature. This is the reverse of what happens when flow improvements are made and boost goes up, requiring a controller. As you know , more boost can be produced in cool air, and less when it is hot, due to the changes in air density.

jayk

If the system is maxed out then I shouldn't be able to correct the boost by adjusting the wastegate controller right? I'll have to try that one of these nights. I'm currently getting about 9 psi instead of the usual 10 psi, I'd be fairly surprised if a system with intake, dp, and cb can't produce at least 10psi.

I'm guessing that I should be able to give the wastegate controller a couple twists and have it back at 10psi. Although I may end up taking blame for this since I also changed my heat shield and radiator the other night, its vaguely possible my new huge radiator and ducting + the new heat shield has reduced intake efficiency.

DaveW

That'll be an interesting experiment - remember, though, that it only may be maxed out in hot weather, as you said, over 90F on hot pavement, and you may have too much boost as the ambient temperature cools off..

kuroi FD

ive got a turboxs manual and it works pretty well, my transitionary boost drops a little but im definetly satisfied.