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[Mk3] [Turbo] Manual Boost Controller VS Electronic Boost Controller
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sw20GTS




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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Tue Feb 16, 2010 11:20 pm    Post subject: [Mk3] [Turbo] Manual Boost Controller VS Electronic Boost Controller Reply with quote Reply with quote including images

Let's say I am running stock ECU, stock engine, stock fuelling and the only mods are FMIC, straight intake, downpipe, de-cat and SS exhaust.

My target boost will only be around factory levels, not planning going higher than 1.2bar. Would an EBC make a lot of difference from a MBC?

Any thoughts?
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sms14




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PostPosted: Wed Feb 17, 2010 1:01 am    Post subject: Reply with quote Reply with quote including images

Just my 2 cents mate but i very much dought it, i run exhaust,filter,downpipe and st205 on mine at 1.2bar with a gts chris mbc and ive never had any issues with it at all.

In comparison i used too have an avcr which used too constantly overboost when it got quite cold, hence the switch to the mbc, i never noticed any difference between the two!
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Razor04




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PostPosted: Wed Feb 17, 2010 4:05 am    Post subject: Re: [Mk3] [Turbo] Manual Boost Controller VS Electronic Boost Controller Reply with quote Reply with quote including images

[quote="sw20GTS"]Let's say I am running stock ECU, stock engine, stock fuelling and the only mods are FMIC, straight intake, downpipe, de-cat and SS exhaust.

You have a front mount intercooler? far out dude [Cool]
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DaveB19




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1993 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Wed Feb 17, 2010 7:56 am    Post subject: Reply with quote Reply with quote including images

You'll need a FCD as well if turning the boost up.
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Phill P
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1992 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Wed Feb 17, 2010 8:12 am    Post subject: Reply with quote Reply with quote including images

Did notice with my gts chris mbc that now its a little damp/cold it did boost to .98 (rev2) from .91 when temps normalish ,so was thinking along the lines of a Gizmo ibc which has had very good reviews and will keep boost down better than the others as it constantly adjusts (so I've been informed).

http://cgi.ebay.co.uk/Gizzmo-IBC-Electronic-Boost-Controller-Mitsubishi-Evo_W0QQitemZ370336365150QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item5639c47a5e


[thumleft] Paul
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Rota torque drifts Japseed exhaust Apexi air filter Gizzmo ibc Apex springs Hks turbo timer 242bhp at .8 bar
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aw11rally




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1984 Toyota MR2 Mk1a

PostPosted: Wed Feb 17, 2010 8:53 am    Post subject: Gizzmo Reply with quote Reply with quote including images

Gizzmo now do an MS2 EBC which is even better!
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Dale_V




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PostPosted: Wed Feb 17, 2010 9:03 am    Post subject: Reply with quote Reply with quote including images

MBC's are good, cant complain at what you get for the

I switched from a GTS Chris MBC to an AVCR, and the difference is huge. The best gain is allowing full control of when the boost comes in and how hard, something you cant adjust with an MBC
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sheppy
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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Wed Feb 17, 2010 9:09 am    Post subject: Reply with quote Reply with quote including images

Dale_V wrote:
MBC's are good, cant complain at what you get for the

I switched from a GTS Chris MBC to an AVCR, and the difference is huge. The best gain is allowing full control of when the boost comes in and how hard, something you cant adjust with an MBC



that's what i was gonna say, i've never personally used one but i beleive it's a"gain" setting or something?? i assume you'd just have it set so the boost comes on as hard and quick as possible,


as for FCD, give s-bits a call, i'm sure the one for a GT4 would be the dame as a MR2, i could wire it in for you if you like [thumleft]
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sw20GTS




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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Wed Feb 17, 2010 9:29 am    Post subject: Re: [Mk3] [Turbo] Manual Boost Controller VS Electronic Boost Controller Reply with quote Reply with quote including images

[quote="Razor04"]
sw20GTS wrote:
Let's say I am running stock ECU, stock engine, stock fuelling and the only mods are FMIC, straight intake, downpipe, de-cat and SS exhaust.

You have a front mount intercooler? far out dude [Cool]


hehe it's for my GT4 [Embarassed] but I thought I would ask here since it's basically the same engine [Very Happy]

I already have an MBC I found lying in the car, not sure what make is it.

I really don't want to spend too much if an MBC would suffice for my use. Just a bit doubtful since I heard baaaaaaaaaad things about using an MBC such as you will blow your turbo etc etc

@ sheppy : Would I even need a Fuel Cut Defender(sp?) if I am not planning to go for massive boost levels? At the moment I don't think I am even anywhere close to factory boost limit.
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sheppy
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PostPosted: Wed Feb 17, 2010 9:32 am    Post subject: Reply with quote Reply with quote including images

what's your engine?? rev3?? fuel cut is 17psi(iirc) so you wouldn't need one if you we're running under that, i think the s-bits FCD only goes to 17psi anyway, so it'd be pointless lol, if you want this MBC hooked up and VSV disabled though i can help with that [thumleft] [thumleft] [thumleft]
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sw20GTS




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PostPosted: Wed Feb 17, 2010 10:05 am    Post subject: Reply with quote Reply with quote including images

sheppy wrote:
what's your engine?? rev3?? fuel cut is 17psi(iirc) so you wouldn't need one if you we're running under that, i think the s-bits FCD only goes to 17psi anyway, so it'd be pointless lol, if you want this MBC hooked up and VSV disabled though i can help with that [thumleft] [thumleft] [thumleft]


Aye was thinking of doing this first to save some lulz. I have one in my car somewhere. Already spent sh!tloads getting the car serviced [Sad]

How long will hooking the MBC up take mate? Car's still in the garage but should get it back this weekend.

edit: Also, how do you know how much to turn the MBC though? I have a boost gauge but but I don't know how accurate that is lol.
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loudandproud205
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PostPosted: Wed Feb 17, 2010 10:32 am    Post subject: Reply with quote Reply with quote including images

first rule

NEVER fit mbc with out an accurate boost gauge its the most important thing ive ever fitted to my car.

buy a guage and wind mbc right in so its at lowest setting, then repeat on an air feild prefereable untill correct boost setting is reached
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sw20GTS




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PostPosted: Wed Feb 17, 2010 10:37 am    Post subject: Reply with quote Reply with quote including images

loudandproud205 wrote:
first rule

NEVER fit mbc with out an accurate boost gauge its the most important thing ive ever fitted to my car.

buy a guage and wind mbc right in so its at lowest setting, then repeat on an air feild prefereable untill correct boost setting is reached


hmmm, there's an airport here but I doubt I will get to have a run on their runway [Sad]
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sheppy
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PostPosted: Wed Feb 17, 2010 10:38 am    Post subject: Reply with quote Reply with quote including images

loudandproud205 wrote:
first rule

NEVER fit mbc with out an accurate boost gauge its the most important thing ive ever fitted to my car.

buy a guage and wind mbc right in so its at lowest setting, then repeat on an air feild prefereable untill correct boost setting is reached


+1, it's a bit of a pain but once it's done you won't need to do it again, i set mine t 1 bar and haven't touched it since!! [thumleft]
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Phill P
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PostPosted: Wed Feb 17, 2010 10:44 am    Post subject: Reply with quote Reply with quote including images

Was a bit worried about 1 bar on my rev2,about to fit bungs on the japspeed so that may bring it down a bit.

The MBC works just fine once its set,just be aware on cold days it may boost a bit more.

Paul [thumleft]
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loudandproud205
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PostPosted: Wed Feb 17, 2010 10:44 am    Post subject: Reply with quote Reply with quote including images

mine spikes like a like a right son of a b.... proberly due to trying to locate it in the cabin where i wanted it [Sad]

think il spend today putting it in the engine bay but what an ass it will be if i want to adjust it [Sad]
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sw20GTS




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PostPosted: Wed Feb 17, 2010 10:50 am    Post subject: Reply with quote Reply with quote including images

sheppy wrote:
loudandproud205 wrote:
first rule

NEVER fit mbc with out an accurate boost gauge its the most important thing ive ever fitted to my car.

buy a guage and wind mbc right in so its at lowest setting, then repeat on an air feild prefereable untill correct boost setting is reached


+1, it's a bit of a pain but once it's done you won't need to do it again, i set mine t 1 bar and haven't touched it since!! [thumleft]


yeah but where do I find an airfield here to test [Laughing]
Guess should just set it at the lowest first and drive it few times?
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sheppy
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PostPosted: Wed Feb 17, 2010 10:52 am    Post subject: Reply with quote Reply with quote including images

sw20GTS wrote:
sheppy wrote:
what's your engine?? rev3?? fuel cut is 17psi(iirc) so you wouldn't need one if you we're running under that, i think the s-bits FCD only goes to 17psi anyway, so it'd be pointless lol, if you want this MBC hooked up and VSV disabled though i can help with that [thumleft] [thumleft] [thumleft]

How long will hooking the MBC up take mate? Car's still in the garage but should get it back this weekend.



meant to say, it should only take a few minutes, although blocking up the VSV was a total b*stard on the mr2 so may take longer [Think]
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loudandproud205
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PostPosted: Wed Feb 17, 2010 11:07 am    Post subject: Reply with quote Reply with quote including images

yeah thats what i did set it low then 3rd gear full boost,

i repeated in 4th just to make sure all was tickety boo
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jimGTS
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PostPosted: Wed Feb 17, 2010 11:13 am    Post subject: Reply with quote Reply with quote including images

ebc > mbc any day of the week.
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