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Boost controller ???

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4stang6

Probationary Member
20
0
Jul 6, 2008
Quitman, Texas
Ok well i tried numerous times searching the forums and i couldnt quite come around to a thread that had my answer..

i have a 1999 Eclipse GST only mods are CAI, and a ported and clipped turbo(not sure what it means but previous owner said it had one)anyways i was wanting to up the boost a bit not too much and good perfect way of doing it i read was by a manual boost controller.now im getting a boost gauge but i was just wondering will a boost controller up the boost any ? and whats the limit of psi i should stop at ? and how much HP should i get from the limit of psi i set it at ?
 
Yes, a boost controller will increase the boost pressure. It is added inline with the wastegate to allow the turbo to build more boost before the wastegate opens.

I think with a stock fuel system 14psi is all that is recommended. Maybe 15 with a bigger fuel pump but I wouldn't push it.

As far as HP, every car is different so I dont think anyone will give you an answer on that (and "bench racing" is against the rules)
 
Uping the boost possible to whatever your turbo can produce and to what your supporting mods are. The higher the boost the more fuel you need to support it. So yes you can turn up the boost but you just need to have supporting mods to support too much additional boost so you can avoid fuel cut etc.
 
so do i basically need to get a bigger Fuel pump ? and another question, what all do i need to get to up the boost and support the boost at 16-18psi ?
 
Supporting mods for uping boost can include a larger fuel pump, bigger injectors, fuel pressure regulator, and usually most people get a SAFC to control it all. That is just some. Also would look at getting exhaust and a FMIC.
 
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Bigger injectors, bigger fuel pump, preferably a better turbo (at least a 14b), and a means of tuning (DSMlink is the best IMO).

That is the bare minimum, You should probably also get exhaust.
 
Ok well what all mods can i get before having to take my car to someone to get it tuned ? can i upgrade the turbo to a 14b without getting a custom tune ? and can i get bigger injectors and a bigger fuel pump without a custom tune as well ?
 
Every pound of boost will gain you 10-15 horsepower roughly. You can probably go to around 16psi without any other mods but ideally you'd want some tools to help you know your fuel system is keeping up. We sell a $35 boost controller and $195 aem wideband would be a good start. As said above a fuel pump could be usefull too. You wouldn't need injectors yet which would also save you from having to buy something to control the larger injectors.

Ryan
 
Thanks for the help people! I have ordered a MBC already, is it best that i do the Boost Resistor Solnoid Mod with Manual boost controller ? or do i add the MBC and NOT touch the Boost Solnoid
 
Also, does having the turbo ported and clip add more boost? or just help with Boosting?Or how does having it help at all ?
 
Thanks for the help people! I have ordered a MBC already, is it best that i do the Boost Resistor Solnoid Mod with Manual boost controller ? or do i add the MBC and NOT touch the Boost Solnoid
 
My bcs isn't even hooked up to the vacuum system anymore, because it is pointless to have it if you have a MBC. I just left it plugged in and tucked it under the intake.

Keep in mind that my car is a 1g. Not sure if this
will throw a CEL on a 2g or not, but it shouldn't (as long as it's still plugged in to the wiring harness)
 
By adding a MBC you are thus removing the BCS. Look at the many writeups on here and you'll see what Im talking about. Dont expect every answer to get handed to you bro. Im surprised someone hasnt already addressed this as all your ?s are very small in difficulty.
 
i stayed on for about 4 or 5 hours just looking for answers to 3 or 4 questions i was wondering, and got nothing but mixed up answers, like stock boost, 1 person says 10lbs another says 8 lbs and another says 14lbs... its all mixed up.i couldnt find the exact answer as i read through all the write ups and all of other peoples questions themselves, and hell i couldnt even use the search button to find the exact info on manual boost controllers.It's easier to just ask straight up because finding the exact answers is unbearable.Sorry if some of ya'll DONT like helping others.But theirs actually good people out their and i appreciate ya'll good people for making it easier on people like me
 
Dude, check out my posts. 80-90% of them are my trying to help somebody's situation. Many ppl on here do the same but some of the questions being asked are just ridiculous. Go search MBC install on here and see how many of the same damn writeups you see OVER and OVER again. They even give you pretty little pics drawn on MS paint. Im not saying I dont want to help but I find it hard to believe that you searched for hours when I can look and find all these answers in a few minutes.

I see time and time again, ''I searched for hours but no luck'' when in reality some ppl type this so the next person's post doesn't say ''Use the search button first!''

But I digress, ask your questions. We ARE here to help.
 
didnt mean to get ya worked up man, but truth from me is i did look, anyways i dont want to argue over something so dumb.Anyways thanks for the help people
 
ROFL

Nobody's worked up, just stating what at least one person seems to say in every Newbie thread. For this thread, I was the one saying it. :D

Whatever questions you have, we are all fans and one of us has probably already been there. :thumb:
 
As people have already said follow the standard 2g Upgrade Path. Two of your first purchases IMO should definately be a wideband and a logger, they're handy even when your car is in stock form.

Since you asked about pushing the boost past 16psi... Once you get things squared away with the basics and start wanting to really up the boost you'll need a way to control your larger injectors and fuel trims. While DSMLink is practically the standard, you do have another option with a 99 that being Evoscan and ECUFlash via a 2.0 Openport cable, which at about $200 can be a cheaper alternative. It may not have all the functions of DSMLink but you can tune with it, and since it's developed by the public it should gain more features as it becomes more poular. You can check it out here: First Flashed DSM ECU

Ceddy is also producing Ceddy Mods which ads features such as CEL on knock, and reasigning the stock boost gauge to do something useful. You can learn about that here: Ceddy Mods


I may be getting ahead of where you are in the upgrade path, but having a logger and wideband from the get-go will help with trouble-shooting any problems that may arise. Not to mention you'll be able to see if you're getting any knock as you turn up the boost and it's also always handy just to be able to monitor your engine. As for tuning, reading up on tuning early will make you more comfortable when start getting into it later on, which if you're already wondering how to up your boost, you'll be there soon enough ;) . Hope that helps you out.

Melbowski
 
As people have already said follow the standard 2g Upgrade Path. Two of your first purchases IMO should definately be a wideband and a logger, they're handy even when your car is in stock form.

Since you asked about pushing the boost past 16psi... Once you get things squared away with the basics and start wanting to really up the boost you'll need a way to control your larger injectors and fuel trims. While DSMLink is practically the standard, you do have another option with a 99 that being Evoscan and ECUFlash via a 2.0 Openport cable, which at about $200 can be a cheaper alternative. It may not have all the functions of DSMLink but you can tune with it, and since it's developed by the public it should gain more features as it becomes more poular. You can check it out here: First Flashed DSM ECU

Ceddy is also producing Ceddy Mods which ads features such as CEL on knock, and reasigning the stock boost gauge to do something useful. You can learn about that here: Ceddy Mods


I may be getting ahead of where you are in the upgrade path, but having a logger and wideband from the get-go will help with trouble-shooting any problems that may arise. Not to mention you'll be able to see if you're getting any knock as you turn up the boost and it's also always handy just to be able to monitor your engine. As for tuning, reading up on tuning early will make you more comfortable when start getting into it later on, which if you're already wondering how to up your boost, you'll be there soon enough ;) . Hope that helps you out.

Melbowski

Thanks for the help, It does help out alot !
 
Also, does having the turbo ported and clip add more boost? or just help with Boosting?Or how does having it help at all ?

Clipping the turbo allows the turbine to flow more air at the cost of slower spool. I'm not a fan of clipping the turbo, it can give you more power but if you buy the correct turbine wheel in the first place that will flow to your goals, you will have the most efficient turbo designed that way from the manufacturer not not guesswork grinding but smaller companies.
 
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