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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > PWM failsafe, fails safe!



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      10-24-2011, 02:18 PM   #23
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Originally Posted by plague View Post
i just checked one log which i logged meth flow in and it looked fine. maybe its logging the activation of flow and the pump is pumping but flow pressure isnt there.. shiv any input
Nope... Methanol Flow % signal comes directly turbine rpm in the flow meter just upstream of the valve. So it is indeed actual flow. Not to be mistaken for Methanol Injector DC% which is the duty cycle of the valve.
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      10-25-2011, 11:29 PM   #24
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Quote:
Originally Posted by shiv@vishnu View Post
Nope... Methanol Flow % signal comes directly turbine rpm in the flow meter just upstream of the valve. So it is indeed actual flow. Not to be mistaken for Methanol Injector DC% which is the duty cycle of the valve.
got ya. and just to reassure myself, on way home tonight, i recorded a 2nd-4th pull, DTC totally off at 80% start boost.. is my gauge reading how you would anticipate it to read for 18psi?. i don't quite hit the 18 mark but just want to know if that is fine, whether its just slight inaccuracy or should i be seeing that needle shoot further up. that gauge has been very accurate thus far so im thinking i may be spike to 17 only. its only one psi difference but i want everything perfect and need to find why i would be boosting short if i am.. or is it me? it is consistent through the gears thats for sure just want to know that I'm seeing what i should be. i am asking shiv, but anyone running procede feel free to chime in.

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Last edited by plague; 10-26-2011 at 08:47 AM..
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      10-26-2011, 10:03 AM   #25
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I need to purchase a new failsafe as my Labonte one failed.

Where to buy? Which one?
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      10-26-2011, 11:01 AM   #26
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someone gimme input on my question 2 posts above
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      10-26-2011, 03:00 PM   #27
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I need to purchase a new failsafe as my Labonte one failed.

Where to buy? Which one?
Either buy Snow performance safeinjection or get the aquamist flow sensor (HE505). They both seem 100% methanol compatible. Both are quite expensive. Around 190 bucks.
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      10-26-2011, 03:03 PM   #28
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Either buy Snow performance safeinjection or get the aquamist flow sensor (HE505). They both seem 100% methanol compatible. Both are quite expensive. Around 190 bucks.
and bump for a reply to my post 3 posts up...
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      10-26-2011, 03:53 PM   #29
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To answer your question you should really data log with the procede reader or get an external boost gauge as its more accurate. It's hard to tell what psi your boosting with the hi jacked gauge read out. While it quite a novelty item it's not accurate. IMO from your video your car is performing quite well and looks as fast as hell. I would not worry about it at all.
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      10-26-2011, 05:03 PM   #30
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Quote:
Originally Posted by cn555ic View Post
To answer your question you should really data log with the procede reader or get an external boost gauge as its more accurate. It's hard to tell what psi your boosting with the hi jacked gauge read out. While it quite a novelty item it's not accurate. IMO from your video your car is performing quite well and looks as fast as hell. I would not worry about it at all.
i just want to know if this is what others see if they running their cars at 18psi. ya ill try to get around to logging a run or two tonight in the meantime.
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      10-26-2011, 05:43 PM   #31
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Quote:
Originally Posted by plague View Post
i just want to know if this is what others see if they running their cars at 18psi. ya ill try to get around to logging a run or two tonight in the meantime.
Like I stated it will be hard to determine the exact boost psi your running with the fuel gauge moving all over the place. Best bet to answer your concerns is to log with Procede reader.
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      10-26-2011, 05:57 PM   #32
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Quote:
Originally Posted by cn555ic View Post
Either buy Snow performance safeinjection or get the aquamist flow sensor (HE505). They both seem 100% methanol compatible. Both are quite expensive. Around 190 bucks.
Thanks for the reply.

Tomorrow will order this: http://www.snowperformance.de/boost-...ontroller.html

202 euros including shipping. That would be 280$
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