yeah I was considering the greddy profec b which is so far is the cheapest EBC and the best according to some peeps but after I saw some of my frends cars which they have like 400+whp and to my surprise they are using MBC as it is cost effective and that changed my mind about the EBC

Anyhow I dont have a lot of money for the car so thats why i'm looking for something good and not overly expensive

 

so ebc still much better than mbc eh? (i cant stand the price of them ebc )

 

Well, MBCs you have to adjust them everytime the weather changes, you change your intake or exhaust, etc.
EBCs keep and maintain their set boost values, and they are cool looking as well with the LCD/etc. screens.

MBCs are cheap tho, as long as the weather in your area dont drastically change from day to day, MBCs will do the job as well!!!

STi

 

an MBC is a mechanical valve which requires periodic adjustment if you find the weather, air density, or modification is effecting the tune of the engine, or spike condition triggering fuel cut.

an EBC is at the least cockpit adjustable, and will attempt to maintain the boost levels set, and the gain levels set regardless of weather changes (if your using an EBC capable of closed loop boost control, which is a vast majority of them)

Now about not using a boost gauge.. If your even considering any form of auxiliary boost control, you should ALREADY have a boost gauge installed.. Why? Because for some period of time before you make ANY modifications, you should be learning what your stock boost curve looks like, its propensity to spike, and other idosyncrasies from mods you may have made (3" exhaust will cause higher overall boost, and fuel cut may kick in because spool is faster and earlier which means the stock fuel maps may no longer be "In sync" with simple bolt-ons even without boost control)

Also, you need to be certain that your getting an accurate boost/vacuum reading external to the boost controller, since an innacurate reading to the boost controller, and relying on the built-in gauge on the controller, means you might think everything is normal, when in reality, both you and the controller are seeing an incorrect value, which may be lower or significantly higher than what it is in reality... Better safe than sorry, before you even do any sort of boost control, get a boost gauge.

Sorry guys.. Suffering a 4 day migraine, so forgive this less than technical post..

 

You might want to read this article:
http://www.sportcompactcarweb.com/te..._boostcontrol/

6 ebc's and 1 MBC in a straight comparision.

 

so they loved the MBC.. and the PRofec-B seemed to be the best EBC... good find

 

i just got my MBC installed. and damn does the car pull harder especially topend.

yeah today it was 60 degrees and later at night it went to 30 degrees and the pressure changed. it took me 3 tries to set up the boost pressure and that sucked. i might change to an EBC when i get the money just because having to change the settings periodically. (only reason)

 

So this may be a dumb question... Would I be able to use the Greddy Profec B from taken from my RX-7 and use it on my Evo? I assume that Greddy only makes 1 Profec B and not one for each type of car right?