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Old 04-01-2021, 07:28 AM
takid455 takid455 is offline
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Default E85 & Fuel pressure sensor location LT GenV

Any specific locations needed for these? Corvettes have the Fuel Pressure in the rear. Is there a known optimal location?

Would like to keep them next to each other mainly due to wire routing.
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Old 04-02-2021, 09:51 PM
randy randy is offline
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My fuel pressure sensor is in the y block 12” after my dual pumps. My e85 se sir is up by the fuel rail. I didn’t want to restrict fuel so I also have a y block at the firewall from my 1/2” feed. Two -6an going off it to each fuel rail and the drivers side rail I have my e85 sensor in line
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Old 04-02-2021, 11:28 PM
takid455 takid455 is offline
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How restrictive is the E85 sensor? Would something like this be a good idea?

https://www.amazon.com/dp/B08PFCDHHN...Y7FGZ8QMC3XJ68

Are you running a return system/ adjuatable regulator?


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Old 04-07-2021, 11:36 AM
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andrewb70 andrewb70 is offline
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Quote:
Originally Posted by takid455 View Post
How restrictive is the E85 sensor? Would something like this be a good idea?

https://www.amazon.com/dp/B08PFCDHHN...Y7FGZ8QMC3XJ68

Are you running a return system/ adjuatable regulator?


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The bypass is a good idea if you are planning on big HP...like over 1000HP

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Old 04-08-2021, 11:59 AM
mikels mikels is offline
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http://foreinnovations.blogspot.com/...el-sensor.html

I have run OE E85 Continental sensors in many builds - splitting the -8 (1/2") fuel feed line into dual -6 lines going to each rail and having sensor on one -6 feed line.

Long story short - even without splitting, unless making some very seriously big power numbers, the pressure loss through the sensor is much less than portrayed.

Of course, I am an engineer and from Missouri - so 'show me' data is how I like to operate!

Also - I am a HUGE fan of returnless systems using PWM pump control (Carl @ VaporWorx) and stagging pump(s) as needed for flow capacity. Solves so many issues and has worked flawlessly up to ~1800hp applications on E85.

Fuel pressure sensor (low pressure) should be mounted near the tank (fuel pump outlet) to minimize 'noise' in pressure of system from injectors. Reason OE's put them by fuel sending unit in tank. Flow losses from near tank to by engine increase with fuel flow rate (is actually calibrated into OE systems) but with well designed systems can be kept to very small loss - and no detrimental effects on engine operation.

David

Last edited by mikels; 04-08-2021 at 12:06 PM.
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Old 04-09-2021, 07:33 AM
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OLDFLM OLDFLM is offline
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Default VaporWorx / DrEFI / Rick's Restomod

Another vote for Carl @ VaporWorx!

Used his components on a GM fuel module in a Rick's Restomod tank on my Firebird and it's been flawless for over a year since the first start up!

Tuning done by Andrew (@andrewb70) aka DrEFI!
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