What do you guys know about this? I know Marski has one and a few others. How does it work?

Can I adjust the boost level in my Stage IV myself with this unit? For instance, when running 100 octane fuel adn using the GIAC flashloader with the 100 octane map, can I turn up the boost myself with this unit?

Does the EVOMS Stage IV package / ECU allow me to turn up the boost?

Thanks guys

 

Which Greddy boost controller are you talking about though, I mean there are three different kinds, the Profec B, the Profec S, and the E-01.

 

Profec B II

 

When and if you'll want it, e-mail me, I'll get it for you cheap, I deal with Greddy directly.

 

I tend to say that its a standard in the turbo world. I have two of them one in each car.

 

I have not used them in about 5 years. We have used HKS unit. More costly but I have never had one unit fail and in terms of using a unit they have proven to be the most accurate and fastest to get on line. I am sure Greedy has better stuff now, but HKS for 15 years has never let me down...never!

 

So even in your stage IV packages, you do not suggest a boost controller? Could your clients benefit from it our is it not necesary with your product?

 

No, I do not use it in the stage IV. I do the updated wastegate springs instead. No reason to use a controller if the boost maps are accurate and stay within 20% duty control.

 

Steven, wouldnt I want to up the boost when I run 100 octane? I have the GIAC flashloader and set it for the 100 race file, but the boost/bar reading stays the same. I know you can run more boost safely on 100, so wouldnt I benefit from the boost controller in this situation. I figure I could safley run 1.3 Bar on 100 with Giac Flashloader and 1.1 - 1.2 on pump gas using the boost controller turned down.

I also have the upgarded wastegates, what A HUGE difference that made!

 

Yes, it does. It has more timing, not boost. You can not run 1.3 bar with K24s hence the reason the program closes the throttle body down at 1.3 bar. You gain more by keep the turbos on their map and adding timing, not boost.

 

I made the switch from a Greddy B Spec II to HKS EVC on my car (turboed RX8). Way better. On my Greddy I use to run into overboost problems in cold weather (set for 7.5 psi, and the Greddy would let it run to 10 psi), and was a pain in the **** to set. HKS was easier to set, and was more precise in it's control. Worth the extra few hundred bucks.

 

Agreed!! They great units.

 

I have 2 greddys. one on each car. I boost 40 psi on the evo 8 and never ran into a problem with boost problems.... ist works great.. and for the money its awesome... never has the HKS unit but im sure it good as well.

 

I second what Markski is saying, I have not tried the HKS and it looks great, but overboost spikes or problems are not related to the Greddy unit quality, you simply need to do the right settings on boost onset, gain etc.. it takes a few minutes and a test drive. It is an inexpensive (ugly!) and versatile controller.

 

They were very much related to the Greddy. Not it's quality, but what it is....an inexpensive unit with limitations. Had nothing to do with settings. Settings were fine. Even my other mechanic who has done a ton of these for 2nd gen Eclipses says there are boost spikes on these units. And the outfit that pulled my Greddy for the HKS, happens to be the #1 seller of Greddy products in the country. I've used the Greddy Type S boost controller before, about as simple as it get's, no way to mess up the settings (and even simpler than the B Spec II), and that has had the overboost in cold/drastic weather too. Has nothing to do with the settings, it's the limitation of the hardware.

Honestly, guys with $20K-$30K imports spend an extra $200 for better equipment, can't see why people who are dropping over a $100K on a car would cut corners on something as important as this. Just my opinion. Greddy is a good, inexpensive boost controller, but certainly not the best out there (HKS, Blitz, Apexi, etc.). Again, not trying to be mean, or saying other people are wrong, just giving my opinion (as others here are doing).