I am positive that I am having a bit of inconstancy with my Greddy as is possibly another member in UK and I am sure we are not alone with others here having various issues with these units... so what's everyone switching to.

 

I have had a few ... they do blow up when the wires get pinched and the head unit doesnt work.

 

Mark, what are other decent alternatives?

 

The head unit doesn't just blow up on it's own usually. A short causes it.
I had mine go bad and after taking the wire harness from the solenoid to the head unit I found the cut wire in the harness. Something worked it's way in there.
I don't have any experience with the evc hks.

 

the new HKS unit is pretty bad *** , but kinda of a pain to setup ... hopefully Chris (powell) can chime in , he has it and he loves it .i will eventually try and make the switch i just need to find a shop i trust.

 

I hear mixed reports about the HKS... starting to wonder if it's just pot luck with all EBC's

 

akram, my mechanic, does not think the HKS is worth the extra money.

 

you can always put on a manual one for $30...

 

yes, HKS is the most stable and accurate solenoid out of the JDM brands. Hard to set though. make sure you get an english manual where possible.

 

Mark you know manual boost controllers are a myth! . You all want to hear a dirty little secret? I ran one for a few weeks on my old setup though. I'm outside about to go in so I will give ya my opinions once I have a real keyboard and not my iPhone!

 

The great boost controller debate... Oh what fun!!!

So here is my take on it. The Greddy Profec B 2 is a nice unit but is very oldschool, yet it is simple to use. For the average user with K24/18G's, etc.. It's very simple and easy to setup and you're good to go.

I have had both the HKS and Profec. I LOVE the HKS not only for its good looks but its such simple ways of adjusting boost. The setup is so much easier than the Profec's f*cked up setting menu that was always fun to navigate through. You will need to spend a little bit of time reading the exact way you want to set stuff but for example my A and B are setup like this: A) Straight Pipes B) Exhaust ... each has different ramp up rates and stuff. Justin could elaborate on it more than myself, but that is how it is now setup.

I mean in the end if you feel comfortable adjusting boost with either then it doesn't matter. I think the HKS is a cleaner and simpler to use, others feel different. I just thought the Greddy looked like it came straight out of the movie Tron. And that aint "gangsta" in my book!

 

Get a manual boost controller, and see if the problem continues. Just drop it inline and leave the greddy in place.

Do you have external wastegates? If so just throw a stonger spring in (~1bar or w.e.) and vent the top to atmosphere. (instead of a MBC)

I thought my greddy was broken till I went thru EVERY connection and either re-zip tied or hose clamped the line.

Tom

 

In my old Supra TT days, the Blitz SBC-ID was one of the best EBCs out there on the market...maybe take a look and see if that's still the case.

 

My Greddy Profec spec 2 has trouble holding high boost sometimes. I thought it was my wastegate but found out its the boost controller. I too have been searching for a better unit...

 

Its not the greddy.... its either your wgs or even a tune.. not to mention boost leaks..
if the greddy goes bad then its bad... mind you you have a solenoid as well...
I just dont see how an electronic unit sometimes gives a problem on high boost... did you take the boost limit out of the way.... maybe its pulling back because your ceiling is being met..