Clear this up.. FCD Boost controller
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Clear this up.. FCD Boost controller
True or false? Upon installing an FCD, on a stock T2 minus cat back and cone filter, you still need a boost controller to manage any actual increase in boost. Actual meaning more than 3 PSI constant. Why? Because the twin scroll turbocharger valve.
I have been told that more boost is possible with the removal of my cats.
I have been told that more boost is possible with the removal of my cats.
#2
Huh? The FCD only changes the boost signal from the sensor. If you go above the stock limit(what like 8psi?) then it will retard and give fuel for 8 psi even though you might be at 10psi. Up to you selected fuel cut it shoudl act normal.
I'm not totally sure how it would make you need a boost controller which adds boost .
I'm not totally sure how it would make you need a boost controller which adds boost .
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I'm a boost creep...
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Re: Clear this up.. FCD Boost controller
Originally posted by Rotary?Cool
True or false? Upon installing an FCD, on a stock T2 minus cat back and cone filter, you still need a boost controller to manage any actual increase in boost. Actual meaning more than 3 PSI constant. Why? Because the twin scroll turbocharger valve.
True or false? Upon installing an FCD, on a stock T2 minus cat back and cone filter, you still need a boost controller to manage any actual increase in boost. Actual meaning more than 3 PSI constant. Why? Because the twin scroll turbocharger valve.
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Just trying to figure something out, I have an 87 t2 and I just installed an FCD. I also installed a boost gauge and it doesn't go over 5 psi. I have a cone filter and the stock cats. Just I even expect more boost? My engine runs strong and I believe I no longer hit fuel cut.
#6
I R SAD PANDA W/O BAW
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If you want more boost get rid of the stock cat. It is probably clogged anyway. You will probably have boost creep issues and will need to port the wastegate if you open up your exhaust that much.
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So if I put a boost controller on there and crank it up to say 8 Psi, I won't even reach 8 PSI because my cats. I don't believe that, I understand there be some unwanted exhaust manifold pressure. I figured if the WG is kept close till 8 PSI than 8 PSI is what I would max out at until the compressor false off and PSI drops. Who has an FCD with no boost controller and is producing more than stock boost after they put the FCD on. I understand that with the FCD second rotor continues to make power thus more CFM's going into the turbine but on my car with my mods I have yet to overwelm my WG. I am pretty sure that if I removed my cats I still wouldn't be able to boost over stock. And for those who are using BC's aren't you tapping into your actuator line for a BC output and your intake manifold for input, eliminating the twin scroll.
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Originally posted by Rotary?Cool
[B]So if I put a boost controller on there and crank it up to say 8 Psi, I won't even reach 8 PSI because my cats. I don't believe that, I understand there be some unwanted exhaust manifold pressure.
[B]So if I put a boost controller on there and crank it up to say 8 Psi, I won't even reach 8 PSI because my cats. I don't believe that, I understand there be some unwanted exhaust manifold pressure.
Who has an FCD with no boost controller and is producing more than stock boost after they put the FCD on.
I understand that with the FCD second rotor continues to make power thus more CFM's going into the turbine but on my car with my mods I have yet to overwelm my WG.
I am pretty sure that if I removed my cats I still wouldn't be able to boost over stock.
And for those who are using BC's aren't you tapping into your actuator line for a BC output and your intake manifold for input, eliminating the twin scroll.
#10
I'm a boost creep...
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Originally posted by Rotary?Cool
Who has an FCD with no boost controller and is producing more than stock boost after they put the FCD on.
Who has an FCD with no boost controller and is producing more than stock boost after they put the FCD on.
And for those who are using BC's aren't you tapping into your actuator line for a BC output and your intake manifold for input, eliminating the twin scroll.
#11
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C%$ gone boost up no creep yet.......Thanks for the info guys, I apoligize for my stubborness. ANSWERS with EXPLANATIONS are a little easier to comprehend.
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***Who has an FCD with no boost controller and is producing more than stock boost after they put the FCD on.***
A FCD does not produce boost. If you car isn't putting out more than say five and a half psi, the install of a FCD will do nothing for you and the engine will still put out....five and a half psi.
If you read this article, you will get the idea behing what a FCD is for: http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm
A FCD does not produce boost. If you car isn't putting out more than say five and a half psi, the install of a FCD will do nothing for you and the engine will still put out....five and a half psi.
If you read this article, you will get the idea behing what a FCD is for: http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm
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If you open up your exhaust/intake boost will raise slightly or significantly depending on how much you free it up. A FCD only stops fuel cut. You need a FCD if you are boosting past the stock boost levels. If you still have stock exhaust and intake you dont really need a FCD. Simple as that.
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