did anyone else read the articles? It is probably one of its more useful issue.

one article compares boost controllers. Looks like the HKS EVC's and Profec A did not work as well as the Profec B, AVC-R, and Blitz. What's interesting for me is how the later 3 can control boost spike. I have followed quite a few threads in both forums, and the consesus seems to be it is impossible for a controller to do this. The data seems to suggest otherwise. Am I reading it wrong??

the other article discusses turbo selections. Not as informative as I was hoping: I am still trying to figure out the proper upgrade compressor and turbine to go into an S5 housing..

opinion?

dewey

 

I have not read much of it yet, but yeah it does look like its got good info. The AVC-R looked to be the best controller, from the graphs at least.

 

I love my profec B. It cured my spiking problem, and when I threw on a midpipe I still didn't have a spike problem (although creep is another issue entirely )...

 

I read all of them except for a couple sucky ones that werent even as good as the ball valve...

First off the Apexi AVCR I found out is NOT the best one.
It is as far as OPTIONS but its one of the worst for hooking up..(splicing wires into ECU) And it cost 620 bucks, Not onlly that but its one that needs to be dyno tuned by a professional so your motor doesent pop and to get the best benifit...

The BLITZ seemed to be really easy to hook up and self learning. Its boost came on the earliest between all the others.

But for the Money in my opionion is the Greddy Profec B. It does all the things the Blitz does and is just as easy to hook up. Requires no profesional tuning and is only 350 on the rx7.com site. All the others pretty much suck.

 

Boost spike and boost creep are two different things. Boost spike is when the boost momentarily "spikes" above the desired max before the wastegate pulls it back down again. Any decent EBC with closed-loop boost control should be able to do this. Boost creep is when the boost goes above what is should be and keeps on going up, or at least doesn't come back down to where it should be. This is caused by the wastegate being physically too small, and no boost controller can fix this.