boost controller recommendation

[CerealKiller]

I need a boost controller that can have two settings (hi / low).

I need the boost to come on later on low and earlier on hi. Is this possible or am I dreaming?

[Edge]

I need a boost controller that can have two settings (hi / low).

I need the boost to come on later on low and earlier on hi. Is this possible or am I dreaming?

Why would you want it to come on later on low anyhow?

Won't save you petrol if thats what you are thinking.

The principle of saving petrol is not having to keep the accelerator on for long.That is cruise as much as possible at a steady high speed and avoid braking. So just get up to speed quick and coast in high gear. Revving slowly up to high rpm without the boost on won't help your cause as you are still using the same amount of energy to get up to the target speed.

The main advantage of accelerating slowly is that you may end up braking less because you don't get make it up to the target speed before you are already braking at the next lights.

Who cares about low boost controller setting - if you press the accelerator less; voila! lower boost is created.

[knore]

Im a supporter of the AVCR

APEXi

that is

[MrMeaner]

i was thinkn bout apexi too, is it ne gewd?

[rob77]

i was thinkn bout apexi too, is it ne gewd?

They arnt bad. You can set the boost level by rpm, so have lowish boost at low rpm to help get off the line without too much wheelspin and then higher boost in the mid-high rpm. I use the blitz sbc type s and it works very well, combined with my external wastegate they hold boost dead flat across the rpm range.

[Ronin]

I have the Blitz sbc id and it works great. It has 4 channels, you can set boost by gear or rpm and it looks fancy . I think its easier to setup than the avcr.

[MrMeaner]

kewl, the blitz one sounds gewd, il hav 2 chek one out, cheers

[nitemare5]

i've got the greddy profec with the fuzzy logic and i got no complaints. Only thing is getting the fuzzy logic to learn yourboost curve, but once that is completed it's a fairly easy to use/good EBC.

[RbHed]

also have d profec a.....

has 2 settings low/hi plus scramble boost

its like gettin instant boost..... set 2 a desire boost level n 4 a designated amount of time... so u can run low boost all day day n when need more boost just press d scramble boost button n whoilla

[Sydneykid]

I agree with Edge, if you want to go faster you push the throttle pedal down some more.

Bringing boost on earlier by using a boost controller is impossible. If there is not enough exhaust gases to spin the turbine fast enough to make boost, then I don't care what boost controller you have, you ain't gunna get any boost.

The point at which the manifold pressure becomes positive is always the same regardless of what boost controller you have (or don't have). If you have a wastegate that opens a little earlier than its preset pressure, then a boost controller can help to keep it closed a little longer. This enables a slightly steeper increase to maximum boost, as no exhaust gas is escaping (bypassing) the turbine.

You don't need fancy electronic circuits and logic to achieve this. We have found this $125 system to be as effective as any;

http://www.autospeed.com/A_0670/cms/article.html

I would use the saved money on other things that are much more effective in making the car go faster.

Hope that helps