HFS-1 Failsafe kicks in at launch and high rpm high boost
May 19, 2008, 03:26 AM
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HFS-1 Failsafe kicks in at launch and high rpm high boost
My failsafe keeps kicking in whenever i launched. I turned the WL all the way counter clockwise and it seemed to fix the problem, although it did it one more random time after that. Also, if i try to run boost any higher than a 28psi spike, it will trigger the failsafe at around 6k rpms. Im using a tru-boost so once it hits failsafe, i have to hit the button on the tru-boost to reset the gauge/controller and have boost go back up. Currently the WL and WH are both turned "out" all the way.
May 19, 2008, 09:25 AM
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Can you tell me the serial number of your system, printed on the flow sensor. I like to check the "grace peiod" before the system is looking for methanol flow window.
May 29, 2008, 04:42 PM
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I also found out that in 5th gear, playing around on the highway, the failsafe kicks in alot if i floor it. I floored it for a little bit in 5th gear and not much after i hit full boost, the failsafe kicked in
May 30, 2008, 01:02 AM
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Can you try backing off the SC to read about 5 bars (~4 click counter clcokwise), it will allow the WH more room to manoeuvre.
Please let me know the serial number on the flow sensor so that I can check back the specifications of your system.
Please let me know the serial number on the flow sensor so that I can check back the specifications of your system.
May 30, 2008, 09:58 AM
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My failsafe keeps kicking in whenever i launched. I turned the WL all the way counter clockwise and it seemed to fix the problem, although it did it one more random time after that. Also, if i try to run boost any higher than a 28psi spike, it will trigger the failsafe at around 6k rpms. Im using a tru-boost so once it hits failsafe, i have to hit the button on the tru-boost to reset the gauge/controller and have boost go back up. Currently the WL and WH are both turned "out" all the way.
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May 31, 2008, 04:25 PM
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The WL and WH reacts very fast when the SC crossed outside the set window. Can you tell me the serial number on the flow sensor so that I can check against the response time of your system.
Another possibility, If the flow sensor is too close to the ignition coil, it will pick up the radiated magnetic field and caused the flow sensor to read too high and high RPM.
Another possibility, If the flow sensor is too close to the ignition coil, it will pick up the radiated magnetic field and caused the flow sensor to read too high and high RPM.
May 31, 2008, 08:56 PM
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The WL and WH reacts very fast when the SC crossed outside the set window. Can you tell me the serial number on the flow sensor so that I can check against the response time of your system.
Another possibility, If the flow sensor is too close to the ignition coil, it will pick up the radiated magnetic field and caused the flow sensor to read too high and high RPM.
Another possibility, If the flow sensor is too close to the ignition coil, it will pick up the radiated magnetic field and caused the flow sensor to read too high and high RPM.
Jun 1, 2008, 01:09 AM
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The WL and WH reacts very fast when the SC crossed outside the set window. Can you tell me the serial number on the flow sensor so that I can check against the response time of your system.
Another possibility, If the flow sensor is too close to the ignition coil, it will pick up the radiated magnetic field and caused the flow sensor to read too high and high RPM.
Another possibility, If the flow sensor is too close to the ignition coil, it will pick up the radiated magnetic field and caused the flow sensor to read too high and high RPM.
Jun 1, 2008, 01:28 AM
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Once the sensor is scaled for a given flow (SC). The scale being 0.5V to 4.5V. This covers the range between 0-300cc/min to 0-1200cc/min.
WL= covering 0.6V to 2.5V in 20 clicks
WH - covering 2.5V to 4.5V in 20 clicks.
In some ways, the SC will affect the WL and WH if it is not calibrated to cover the system's flow range. SC is a control key within the micro's conversion table to either squeeze or stretch the constants in the table.
It might be complex way to tackle a simple job, but a flow sensor's output is not linear to flow. Look at the turbo charger's flow map for example. As we making good progress during last few years, since 2002. The performance of the sensor has exceeded any commercial flow sensors to date ( compared to the ones we studied).
The log you did confirmed it.
WL= covering 0.6V to 2.5V in 20 clicks
WH - covering 2.5V to 4.5V in 20 clicks.
In some ways, the SC will affect the WL and WH if it is not calibrated to cover the system's flow range. SC is a control key within the micro's conversion table to either squeeze or stretch the constants in the table.
It might be complex way to tackle a simple job, but a flow sensor's output is not linear to flow. Look at the turbo charger's flow map for example. As we making good progress during last few years, since 2002. The performance of the sensor has exceeded any commercial flow sensors to date ( compared to the ones we studied).
The log you did confirmed it.
Jun 1, 2008, 02:09 AM
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Once the sensor is scaled for a given flow (SC). The scale being 0.5V to 4.5V. This covers the range between 0-300cc/min to 0-1200cc/min.
WL= covering 0.6V to 2.5V in 20 clicks
WH - covering 2.5V to 4.5V in 20 clicks.
In some ways, the SC will affect the WL and WH if it is not calibrated to cover the system's flow range. SC is a control key within the micro's conversion table to either squeeze or stretch the constants in the table.
It might be complex way to tackle a simple job, but a flow sensor's output is not linear to flow. Look at the turbo charger's flow map for example. As we making good progress during last few years, since 2002. The performance of the sensor has exceeded any commercial flow sensors to date ( compared to the ones we studied).
The log you did confirmed it.
WL= covering 0.6V to 2.5V in 20 clicks
WH - covering 2.5V to 4.5V in 20 clicks.
In some ways, the SC will affect the WL and WH if it is not calibrated to cover the system's flow range. SC is a control key within the micro's conversion table to either squeeze or stretch the constants in the table.
It might be complex way to tackle a simple job, but a flow sensor's output is not linear to flow. Look at the turbo charger's flow map for example. As we making good progress during last few years, since 2002. The performance of the sensor has exceeded any commercial flow sensors to date ( compared to the ones we studied).
The log you did confirmed it.
Just want to check to make sure I get what your saying. The SC is a parameter in the conversion from volts to CC, or maybe just flow sensor revolutions to volts rather.
So for example (I'm just guessing with numbers to get an idea, not trying to be accurate).
if the SC is all the way down, and flow v = 2.5 then cc ~ 150
if the SC is all the way up, and flow v = 2.5 then cc~ 500
In this way the SC is used to help "zero in" the 0.5V to 4.5V range into the actual flow range that is likely. So if someone only has one .3mm jet they will never go above .7v if not for SC scaling.
Am I understanding this correctly?
Jun 1, 2008, 01:27 PM
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Yes, you can calibrate the sensor as you described. Within 100-1200cc/min, the result is repeatable, provided you don't change water/methanol concentration.
The 0.3mm (68cc/min) will register on our latest sensor (March 08 on), but we cannot guarantee repeatability. This is low flow for any type for turbine based sensor. The SC needs to be set to fully clockwise.
The 0.3mm (68cc/min) will register on our latest sensor (March 08 on), but we cannot guarantee repeatability. This is low flow for any type for turbine based sensor. The SC needs to be set to fully clockwise.