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so, which one is the better half

 
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I have nothing against your tech information at all, you gave great info and I did learn something from what you said. The remark about "real boost levels" being in double digits is what upset me.

All I'm saying is that remarks like that are a lil unwelcome, but the remark about real boost is a lil harsh because all stock D17s cant handle anything more than 10psi, it's just our engine. Your 240SX is a much better platform for boost and I'll give you that.

 
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That I also agree with. I want a high-q MBC because I need to focus my money on other aspects of the car right now, such as suspension and durability upgrades for road racing. I had my heart set on the Greddy EBC line, starting from the Profec-E01, then down to the B Spec-2. I am now looking at the Turbo XS High Performance boost controller (the one that goes for $120). That should help me spool up a lil better too, it prevents your wastegate from seeing boost until the preset psi is hit. Having a big turbo won't be as bad with that one, it's a ball and spring setup.

 
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Well, in that case, sorry about my remark. But... your motors can handle double digit boost levels. Low double digits. I've seen 5th and 6th gen SOHC motors take it with 100k miles on them. The key is tuning. Now, how much you guys are willing to risk is a different story. I can see how you'd be scared of blowing her up because it is a brand spanking new car on warranty afterall.

 
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My Profec B Spec 2 is very nice it just takes a little tuning to get the settings right. Install was also very easy.

Like Speed's BF said, you can finely tune an EBC to make boost sooner or later depending on your needs. That type of control over boost is the reason why I bought the Profec B. And also for the bling factor...

 
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i like my blue lil screen glowing in the night, and plus it serves a purpose, they hold the peak boost so u know what level u just hit without having to stare at the mechanical autometer guage on the pillar, and it tells u what RPM it was at

 
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Yeah my warranty will be up by next week, but that wouldn't cover it. I'd just rather spend money on other parts and not be too broke if I blew my engine. When I start my business next year I'll try about 11-12 psi on stock internals and see how everything holds up...

 
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Business? What sort of business?

 
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well I have the Greddy Profec B Spec II...heard only good things about it...I plan to put my low setting on 6-7ish and high setting on maybe 10psi...

 
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c2i0v0i1c has ran his up to 14 psi and has dyno's for it too

after reading this i have came to understand that:

1. if you are gonna do a MBC th ebest thing would be to get a nicely priced dual stage one or

2. get a good name brand EBC and finely tune it

i still think im gonna go with the greddy prefec b spec II

 
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Hey I was wondering what the performance difference is vs. the 2. I know that electronic is better for stock turbo cars because it can sometimes controll boost better than the stock ecu and can show HP gains at the same psi because of better efficiency. And yeah they can be adjusted a little easier and you can visually see what psi it's reading. But on an aftermarket set up. is there any advantage performance wise. I was considering getting a Turbo Xs duel stage controller. I notice that alot of pro am FWD drag cars and pro drag cars are using this system and alot of drag strip cars use manuel over electronic. anyone got some imput on this??

 
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I picked the dual stage MBC seems like a fool proof thing. If you have an EBC and you like to tinker at every stop light you may run into probs. If you are gunna dyno the car and leave, it either one really should be fine. An EBC has a lotta opotions but the turboxs ds is a great affordable BC thats simple to use and a proven product. Sometimes the fanciest stuff isnt always the best. From my experience I say keep it simple. MBC. Everyone has different opinions though.

 
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Are you running it now? if you are, have you seen any boost creep or spikes?

 
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Personally im not running it now but my I know people that used them and boost spikes and creeping didnt seem to be a big issue with them. Everyone I know said go with the Turboxs DS MBC or the greddy profec b for an EBC. I heard that Halman makes great mbc also.

 
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i like the Halman, until it locked up on me

 
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I have not messed with my Hallman... I have read alot about them and its very rare for a Hallman to lock up on someone.

 
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try to stay away from the 'fuzzy-logic' controllers... it's a technology that is yet to be perfected. Even HKS has gone away with it on their newer V.

Electronic is extermely nice to have and easy to make changes with in gear and the EVC V gives a smoother curve than even the turbosmart MBC I was using.

You have to be careful with MBC. A lot of guys use home-made ones.. of the wrong design. A lot of them will trap in boost between shifts and you'll get spikes. that or they are simply finniky at best. i.e. 1/4 turn and all of a sudden you have another 10psi.

the only MBC that I have found realllly predictable are the ones from Turbosmart. Each click corresponds as it should and doesn't fly up dramitically...click, click, click, click and so on... ahhhhh. Doesn't booost horribly between shifts or on down-shifts) and still uses their 'gated' technology for quick spool (didn't notice difference in spool with the EBC on dyno even).

One of the worst MBC- I personally can't believe that Turbonetics sells the POS unit they provide and that other places have copied. It's been tempermental on every single car I've seen it used on.

 
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here is the best info i have found on them so far:

http://www.7thgencivic.com/forums/sh...st+controllers

i am personally going with the greddy profec-b spec II

 
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I read it somewhere that Elect is good for low boost while manuel is good for high. but who knows

 
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Depending on what your looking MBC might be for you or EBC. Pros of EBC you can have some boost controllers that can have variable boosts between gears i.e. u dont wanna spin off the line you run 7psi and your EBC boost through to 12 psi steadily so you don't spin so much. MBC it's set and go there. EBC are fun to look at when driving too .

 
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So if I want to use a T28 turbo with an MBC it is harmful?

 
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It's not harmful. Just buy a high quality MBC, similar to opto's.

I used to vouche for MBCs, they aren't bad but OMG electronic boost controllers are awesome. NO SPIKING what so ever, and if I want less lag, turn up the set gain, too much of a boost on the set gain and I can spike, so I turn it down a lil.

This thing allows my turbo to spool up very quickly. And here's my favorite part... I don't have to rotate a **** and floor it to see how much boost I'll make... Just digitally set a number, and I hit what I want. I also have 4 stages or presets... At 1, I make about 4.5psi, 2 is 6.2psi, 3 is 7psi, 4 is 7.8psi. When it rains I just drop it to 1 and it helps keep the engine a lil more under control.

Another great feature of EBCs, PEAK HOLD!!! Some high quality electronic boost gauges have a peak hold feature, but this just puts it all in one unit.

I also find my autometer to be a little inasccurate with boost, where as the Blitz one I have is dead on and very reliable. I can just go to the peak screen and call up how much boost I've made since the last reset. It works very well.

My final comment, if you're going internally gated, the Blitz SBC-Spec S is the one for you. It does it all, it's very easy to use, and very compact. They don't due too well with american made external wastegates so I reccommend greddy for that, but all in all I swear by this boost controller.

 
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I agree with Madwheel in addition to what I mentioned.

Also, just from experience... if you live in an area with moisture or are concerned about corrosion of your equipment, go for HKS over the Greddy... HKS uses much higher quality solenoids and I've seen them be less problematic than the greddys over long time.

Every big horsepower car I know, runs EBC... maybe it's just too many people with money, but the boost curves are always predictable on the proper ones. Even one of the earlier One-Lap of America Supras run by RCTS ran and still runs one... campaigned for 4 or 5 years in it without a problem (the team that runs now hasn't been quite so succesful with problems I hear). If you have to drive 5000miles, and race your 10 second car WOT for several minutes a day... I'd say you have to pick something with reliability.

Avoid HKS EVC III or IV (and some of the JDM IIs are actually IIIs). Other than that go for a II or V...


For most situations, a good MBC will work excellent. A bad one will make life difficult.

 
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electric i had a manual but electric is more trick

 
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qoa. did someone just merge these threads cause i could swear that i didnt just link to the same thread

 
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Mine is for sale if anyone wants it. Used for 2 weeks.

http://www.7thgencivic.com/forums/sh...d.php?t=170015

 
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Electronic is better or else people wouldnt pay X times more for them. They hold the wastegate shut until desired boost is reached. They are programmable and therefore are least likely to spike or creep.

Manual is fine for most applications, just dont spend 3 dollars in a hardware store and expect it to work as well as an AVC-R, cause it wont. Personally I have a Turbosmart MBC with in cabin ****. It works pretty well but has some creep. The infinite adjustability of the **** is nice as well, but I look foward to getting the AVCR and spooling a little quicker and not having to watch my gauge while speeding to set boost.