Boost Tee V's Ebc

[Get EPIC]

hey all. i currently have a turbosmart boost controller on my r33.would i benefit performance wise installing a good electronic one?car is stock except for front mount,Hiflow panel filter,and walbro fuel pump.Running 10 psi.

[Pal]

have to have a look at your dyno sheet (if you have one) to see how well it is holding. if boost is dropping off dramatically at the end of your rev range then yes, a EBC will help. If stable across the rev range then it would be a waste of money unless you intend upping you performance down the track

Edited December 8, 2008 by Pal

[Krishy]

hey all. i currently have a turbosmart boost controller on my r33.would i benefit performance wise installing a good electronic one?car is stock except for front mount,Hiflow panel filter,and walbro fuel pump.Running 10 psi.

I use a manual boost tee for around 10 psi

they are fine for low boost

but as soon as you start pushing past the 14psi mark they seem to spike all over the place

and yes as Pal said have a look at your boost curve and if its droping from 10 psi to 8psi or something then a EBC will help

but for the time being if your not getting a spike or boost drop then i wont worry about an EBC

[joeyjoejoejuniorshabadoo]

just get a single solenoid DSBC or profec B

earlier and more stable boost.

then you can also set it to 12 psi and not have to worry

[super_s13]

I am using a manual bleed valve and i dont have spiking issues. My boost does however drop back from 11psi to around 8 in the top end.

I will add a EBC when dollars permit but for the cheap mans build i would say i dont have a problem with the bleed taps.

[R31Nismoid]

This could turn interesting...

Either way, i've never used a EBC.

I've bled upto 24psi (14psi wastegate) and it was fine, no gate creep, no loss of performance.

I know many a car here 20+psi, using just actuators and a bleed or similar free/cheap methods.

The key is to get the actuator as close as you can so the bleed isn't much and therefore you wont have many problems.

Upgraded/modded actuators will also stop the drop off in the upper RPM

[bubba]

An EBC can help bring the boost on a LOT faster than with just the actuator. Depends on how harsh you want your power delivery

[joeyjoejoejuniorshabadoo]

brutal preferably

[bubba]

That's the way I like it can make it a little hard to drive normally sometimes.. 3L + 25 turbo + holding gate shut till 8.5psi the boost comes on rather quickly

[R31Nismoid]

An EBC can help bring the boost on a LOT faster than with just the actuator. Depends on how harsh you want your power delivery

Keyword there being - CAN - doesnt mean they do.

I've never had a problem (internal/external gate setups). In/Out of gears or anything like that.

Boost has come just the same as if the gate was wired shut, which would be the perfect example of when boost should be delivered... but obviously we dont all run around with gates wired shut for obvious reasons.

[bubba]

You don't have to have a "problem" to benefit from an ebc.

Have you compared your boost reponse to that when your gate is wired shut? I would hazard a guess that even if you have, it's still a bullshit analogy as with the gate wired shut you're going to be getting off the gas pretty damn quickly before you grenade your engine

There is definately a fairly hefty (at least in my setup) difference between not holding the gate shut and holding it shut till 8.5psi (The reason I don't hold it shut any later is because of the setup and boost coming on so fast, it spikes if I set it over 8.5psi).

The physics involved tell me that a pressure actuator is going to start opening as the pressure builds. I understand there can be some funky gates with fancy progressive spring rates etc that could probably do similar to the SETGAIN feature on my profecB, but in my EXPERIENCE on MY SETUP, the ebc makes a big difference.

Edited December 9, 2008 by bubba

[bored33]

HKS heavy duty actuator and set it as close as you can to the desired boost and then bleed valve the rest! Works a treat! Unless you have an external gate then I'm guessing a spring thats closest to what you are aiming for?

[R31Nismoid]

You don't have to have a "problem" to benefit from an ebc.

Have you compared your boost reponse to that when your gate is wired shut? I would hazard a guess that even if you have, it's still a bullshit analogy as with the gate wired shut you're going to be getting off the gas pretty damn quickly before you grenade your engine

There is definately a fairly hefty (at least in my setup) difference between not holding the gate shut and holding it shut till 8.5psi (The reason I don't hold it shut any later is because of the setup and boost coming on so fast, it spikes if I set it over 8.5psi).

The physics involved tell me that a pressure actuator is going to start opening as the pressure builds. I understand there can be some funky gates with fancy progressive spring rates etc that could probably do similar to the SETGAIN feature on my profecB, but in my EXPERIENCE on MY SETUP, the ebc makes a big difference.

You do.

If the actuator is opening before the target level is reached - then you have a problem.

That problem is likely to be a lazy actuator, or one thats in need of some alteration. Possibly vac line is too long, not the right size, there are many things that can be looked into.

Again - If your boost is spiking if you set it up over 8.5psi, you have a problem.

The problem is the gate isnt flowing enough or is restrictive for one of a few reasons.

All this meaning the air is finding the path of least resistance - which is the turbine housing, not the gate, and hence spiking.

The compressor wont spin (make more boost) unless its being turned more, so in order to go above the target PSI, its being spun, and this can only be done if the exhaust is going via the turbine.

You can easily wire a gate shut, ramp up and see the curve - compare with the gate on actuator. Its really not a big drama.

Its certainly not dangerous if you've got half an idea and level of sensibility.

btw - i wasnt using funky gates or anything. Just the factory Garrett housing on a T04E, then a Garrett 45mm ext gate, and now Garrett int gates on GT-SS's.

Not one problem with any of them spiking, poorly controlling boost or otherwise.

[bubba]

Dude, don't try to diagnose on my setup as you know nothing about it. You are trying to to tell me about a hardware problem when it is actually just the nature of ebc settings, you set the SETGAIN too close to the target boost level and it will spike.

Get off the soapbox Internet Warrior, I'm out because I can't be bothered getting into an argument with the all omnipotent one.