E-boost street boost controller acting odd?
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E-boost street boost controller acting odd? so it claims to be able to throw down 40 psi , yet for some reason I have to have the boost solenoid at 75% duty cycle, my gate pressure at 20 psi and it makes 212 kpa. In the meantime the eboost street reads 28-32 psi at this setting yet on my Holley digital dash, my map sensor is hitting 212 kpa? Anybody else experience issues with this boost controller ? Also can anybody walk me through setting this thing up too unleash all hell and have a nice flat boost curve ? It tends to slowly ease into 5-6 psi then at 10 it instantly jumps to 15-16 and shreds the tires at 75+. I'd just rather it come on more linear if possible. Again im green when it comes to turbo cars so if this is how they act then so be it , I'd just like the boost to come on stronger down low if possible and pull hard through the rpm range. With the bc cranked up like this , It seems to take longer to spool up but makes an insane amount of power. I'll be disappointed if it doesn't make 650 to the tires tomorrow on 15-16 psi to say the least .
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my build thread was last fall lol. Seems like you get a more direct answer by breaking questions up into seperate posts. Long winded stuff usually only results in partial answers. I'm not very technically savvy , and the internet isnt really my thing .. once I figure out what direction I'm going in for the new setup , as far as motor and transmission wise, then I'll start a new build thread for sure
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From: Norn Iron
so it claims to be able to throw down 40 psi , yet for some reason I have to have the boost solenoid at 75% duty cycle, my gate pressure at 20 psi and it makes 212 kpa. In the meantime the eboost street reads 28-32 psi at this setting yet on my Holley digital dash, my map sensor is hitting 212 kpa? Anybody else experience issues with this boost controller ? Also can anybody walk me through setting this thing up too unleash all hell and have a nice flat boost curve ? It tends to slowly ease into 5-6 psi then at 10 it instantly jumps to 15-16 and shreds the tires at 75+. I'd just rather it come on more linear if possible. Again im green when it comes to turbo cars so if this is how they act then so be it , I'd just like the boost to come on stronger down low if possible and pull hard through the rpm range. With the bc cranked up like this , It seems to take longer to spool up but makes an insane amount of power. I'll be disappointed if it doesn't make 650 to the tires tomorrow on 15-16 psi to say the least .
And why would you be setting GP much higher than your desired boost pressure ?
RTFM
http://www.turbosmartusa.com/wp-cont...psi_MAY_12.pdf
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Because for some reason it seems to hit lower than the desired gate pressure . I have to have a solenoid that claims 40 psi set to 75% to hit 15 psi. It should be seeing 30 and grenadine the ls1 but it doesn't t
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From: Norn Iron
And nowhere will a solenoid say it will hit 40psi at anything and given tehre are many many plumbing variables as well as the configuration of the controller itself....
Read the instructions.
And there is no "desired" gate pressure.
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I've read the instructions , there's only two ways to hook it up. Also states to set the gate pressure 3 psi below your target boost. So yes it's not right the way I have it set . Why would they call it an eboost street 40 and claim 40 psi maximum boost if that wasn't the case ? And yeah I don't understand how it works cuz this is my first turbo car ever .
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From: Norn Iron
I've read the instructions , there's only two ways to hook it up. Also states to set the gate pressure 3 psi below your target boost. So yes it's not right the way I have it set . Why would they call it an eboost street 40 and claim 40 psi maximum boost if that wasn't the case ? And yeah I don't understand how it works cuz this is my first turbo car ever .
And if the unit was installed on a car with a tiny tiny turbo, would you ever expect it to be capable of 40psi under any circumstances ? No. An electronic controller cannot defy the laws of physics.
On the right combo, with the right configuration then yes on some engines it may be possible to generate 40psi boost and that means that controller would be able to accommodate it.
But it isnt suddenly going to make say a GT25 fitted to a 4.8 run at 40psi
ok that's good. I have the eboost 2 but haven't run it yet.
I'm setting it up the other of the 2 ways. One port to the compressor housing, one to the top of the gate and the last port to the bottom. My understanding is that help keep the gate from cracking early and better controls boost drop up top. Otherwise it's gonna be just spring pressure.
there are a lot of ways to lose boost up in the rpm besides the gate control. I could be the contoller is working good and is at its limit
I'm setting it up the other of the 2 ways. One port to the compressor housing, one to the top of the gate and the last port to the bottom. My understanding is that help keep the gate from cracking early and better controls boost drop up top. Otherwise it's gonna be just spring pressure.
there are a lot of ways to lose boost up in the rpm besides the gate control. I could be the contoller is working good and is at its limit
Like said previously, you really need to read the turbosmart literature...
Turbosmart describes gate pressure as ramp rate. In their own words "This feature helps bring boost on faster at lower rpm and will give an increase in torque." In no way do they imply that you'll get a certain amount of boost at any certain setting.
You also need to understand that without a compressed air source (like CO2) your controller can only give you up to about 2x spring pressure.
Turbosmart describes gate pressure as ramp rate. In their own words "This feature helps bring boost on faster at lower rpm and will give an increase in torque." In no way do they imply that you'll get a certain amount of boost at any certain setting.
You also need to understand that without a compressed air source (like CO2) your controller can only give you up to about 2x spring pressure.
The e-boost CAN get to 40psi with a setup that can do more than 40psi without a wastegate. Doesn't mean you can push 40psi with a turbo surging at 20psi or with a boost leak.
Try to run a full mechanical setup and see how it works out. In my experience, nothing will spool faster than full mechanical wastegate doing its thing. Granted the wastegate better be setup tight enough to reach full potential.... or disable the wastegate and see what happens LOL
Try to run a full mechanical setup and see how it works out. In my experience, nothing will spool faster than full mechanical wastegate doing its thing. Granted the wastegate better be setup tight enough to reach full potential.... or disable the wastegate and see what happens LOL
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From: Norn Iron
The e-boost CAN get to 40psi with a setup that can do more than 40psi without a wastegate. Doesn't mean you can push 40psi with a turbo surging at 20psi or with a boost leak.
Try to run a full mechanical setup and see how it works out. In my experience, nothing will spool faster than full mechanical wastegate doing its thing. Granted the wastegate better be setup tight enough to reach full potential.... or disable the wastegate and see what happens LOL
Try to run a full mechanical setup and see how it works out. In my experience, nothing will spool faster than full mechanical wastegate doing its thing. Granted the wastegate better be setup tight enough to reach full potential.... or disable the wastegate and see what happens LOL