MBC's..Should I buy one? I have tons of money. Maybe an EBC.......Help!!!!
05-15-2007, 12:48 PM
#41
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An EBC is ******* wine and cheese- looks good, works ok, and you don't have to put down your chardonnay.
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05-15-2007, 12:53 PM
#43
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Dood, you're 100% wrong. There's no way a computer controlled solenoid is as precise as something that the forces of physics will open instantly at a predetermined pressure. This is simple stuff here...
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05-15-2007, 12:56 PM
#45
Reading this thread has made me retarded. The simple fact is this, if your really battling this decision (whoever the original poster is) buy or build a 15 dollar boost controller (MBC). Then, if you feel it justified, spend the money and get electronic later. Your out 15 bucks, or you can use the MBC to **** yourself because you wasted my reading time over a 15 dollar component. 
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05-15-2007, 01:04 PM
#46
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Yeah, those computers, damn them, always rounding off decimal points on the 1's and 0's and getting everything wrong. Good old ball and spring rattling around inside a tube, now that's precision.
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05-15-2007, 01:16 PM
#49
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Yeah, it's 1s and 0s and hackers that I am worried about... Jesus ******* Christ.
If you guys don't understand why a simple spring valve will give you better response over a solenoid, computer controlled or otherwise, then there's no point in arguing with you.
If you guys don't understand why a simple spring valve will give you better response over a solenoid, computer controlled or otherwise, then there's no point in arguing with you.
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05-15-2007, 01:17 PM
#50
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my datalog:
See the ruler flat cyan line? No overshoot or creep or sag or spike?
I've already offered hustler the same model for cheap.
oh here's scott's datalog:
And you know I'm not the type to cheap out generally, but I *like* my $5.00 boost controller.
See the ruler flat cyan line? No overshoot or creep or sag or spike?
I've already offered hustler the same model for cheap.
oh here's scott's datalog:
And you know I'm not the type to cheap out generally, but I *like* my $5.00 boost controller.
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05-15-2007, 01:21 PM
#51
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shut up y8s, you don't know anything, you could use a MBC and have way better control, and you would be way less wine and cheese than all those stupid OEMs and pro race teams that exclusively use EBCs.
oh wait that is an mbc. well, that's a pretty damn good one. an exception proves the rule.
oh wait that is an mbc. well, that's a pretty damn good one. an exception proves the rule.
Last edited by Al Hounos; 05-15-2007 at 01:33 PM.
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05-15-2007, 01:46 PM
#54
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as much as I like my MBC, you're just wrong.
a MBC is a spring and ball....the spring will always open a little bit as boost increase untill the spring's preload is finally overcome and forced open....so what did that little amount of leaked boost do??? slow spool and possible incourage a boost spike. One thing you can do to limit this (if happening) is a pressure regulator post MBC that will not allow anymore than x boost pressure to the wasegate. Depeding on the condition of the your wastegate, increased boost pressure to the wasgate can be more than it can handle and surge or drop.
a EBC can hold the wastegate closed at the absolute last possible second. then the duty cycle can be tuned to control the solenoid far better than just "forces". what does this do for you?? increased spool, boost adjust on the fly, better accuracy through the entire revs.
both are set and forget...the first time I rocked a EBC on my miata I noticed the difference in spool-up right away....now back with a MBC the response time is a bit sluggish compared....
FWIW:
HTML Code:
Index Quantity Part Number Description Customer Reference Backorder Quantity Unit Price USD Extended Price USD 1 1 IRLZ44NPBF-ND MOSFET N-CH 55V 47A TO-220AB IRLZ44NPBF-ND 0 2.02000 $2.02 2 1 1N4002DICT-ND RECTIFIER GPP 100V 1A DO-41 0 0.26000 $0.26 Subtotal $2.28 Handling $5.00 Shipping unknown Estimated Sales Tax $0.36 Total unknown
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05-15-2007, 02:00 PM
#55
I guess personal experience counts for nothing with this guy...
I've used both... on different setups and cars... and the EBC wins everytime.
For those that care... if you want cheap and easy... MBC... if you are willing to spend a hair more and want more ... EBC.
If you are running Megasquirt... EBC all the way. Last I checked... MBC can't do throttle dependent boost... or overboost protection... or quicker spool... or boost retard for traction control.... or.... you get the point....
I've used both... on different setups and cars... and the EBC wins everytime.
For those that care... if you want cheap and easy... MBC... if you are willing to spend a hair more and want more ... EBC.
If you are running Megasquirt... EBC all the way. Last I checked... MBC can't do throttle dependent boost... or overboost protection... or quicker spool... or boost retard for traction control.... or.... you get the point....
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05-15-2007, 02:05 PM
#57
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shut up y8s, you don't know anything, you could use a MBC and have way better control, and you would be way less wine and cheese than all those stupid OEMs and pro race teams that exclusively use EBCs.
oh wait that is an mbc. well, that's a pretty damn good one. an exception proves the rule.
oh wait that is an mbc. well, that's a pretty damn good one. an exception proves the rule.
what's more, I have my external wastegate on the #4 runner only. what rule is that proving by being the exception?
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05-15-2007, 02:23 PM
#59
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Personal experience counts for everything, MY personal experience. The only EBCs I found to be worth a **** was the HKS EZ and the Greddy Profec B. The fancy ones were always junk and the Profec B had limitations as well, it couldn't make more than double the boost of the wastegate spring and modded it would still max out at 25psi.
I've played with an MBC with compressed air and never noticed what Braineak is talking about with the ball leaking. I have noticed that solenoids on EBCs will open before the desired boost is reached, this is what actually prevents spikes, when the onset of boost is slowed down. A Profec has a trim **** that will make the solenoid open harder or softer. Boost builds slower with a softer trim but spikes are less likely to occur. A properly sized wastegate for the boost you are running is the cure for spikes, not an EBC. Obviously working with what ebay and junkyards have to offer for turbos makes sizing the wastegate to our application impossible for the majority of us.
You guys can think what you want, and I understand what is accepted in one community as absolute truth is often different than another. Even experts in the field will tell other experts they are dead ******* wrong. Whatever.
Personally, I'd never run an EBC I didn't build myself, ever again.
I've played with an MBC with compressed air and never noticed what Braineak is talking about with the ball leaking. I have noticed that solenoids on EBCs will open before the desired boost is reached, this is what actually prevents spikes, when the onset of boost is slowed down. A Profec has a trim **** that will make the solenoid open harder or softer. Boost builds slower with a softer trim but spikes are less likely to occur. A properly sized wastegate for the boost you are running is the cure for spikes, not an EBC. Obviously working with what ebay and junkyards have to offer for turbos makes sizing the wastegate to our application impossible for the majority of us.
You guys can think what you want, and I understand what is accepted in one community as absolute truth is often different than another. Even experts in the field will tell other experts they are dead ******* wrong. Whatever.
Personally, I'd never run an EBC I didn't build myself, ever again.
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