MotiveReflex On N55 (F22)

wheela

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Jun 4, 2021
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It would be sweet if you could stay DI though. Do you have a particular power goal? I'm curious what the DI limit is on 93 with the current hpfp options out there.
 

RuskiRacer

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Jul 17, 2019
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I don't understand whats sweet about staying di only ? Tons of carbon building up on the valves ?
 

wheela

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Jun 4, 2021
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Not having to have extra controllers to integrate into the car, and additional fuel lines, etc.. Not that those things are a problem, but more complexity provides more opportunities for failure. Probably boils down to personal preference. For me, I like to keep things as simple as possible - only add just enough complexity to acheive the goal.

I hear you about the carbon on the valves, definately a positive about PI. I don't think that build up is as big of a problem on n55 though?🤷‍♂️
 

RuskiRacer

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Jul 17, 2019
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Not having to have extra controllers to integrate into the car, and additional fuel lines, etc.. Not that those things are a problem, but more complexity provides more opportunities for failure. Probably boils down to personal preference. For me, I like to keep things as simple as possible - only add just enough complexity to acheive the goal.

I hear you about the carbon on the valves, definately a positive about PI. I don't think that build up is as big of a problem on n55 though?🤷‍♂️
Mmmm hard to say I've walnut blasted and put pi on a few n55s and they get pretty gunked up as well. Maybe since n55s are newer they have less carbon buildup than your typical high milage n54
 
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houtan

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Nov 2, 2017
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I may have missed it but what are your power goals? Are you good with using enough e85 to meet that goal or are you in the I want to run full e85 only camp?
 

Dumaurier7

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May 19, 2020
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Because I have a BPM4 and a CM5 water / meth controller (with 6 outputs) I also feel like I am underutilizing the Reflex since I will not be using any of the available inputs and outputs. A simple stand alone E content module will handle the flex fuel capability and the aux. input which I am using for fuel pressure can be wired to my P3 gauge. As for the intake carbon issue I am pretty sure my catch can will eliminate that since I don't see any other source of oil vapors.
 

Dumaurier7

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May 19, 2020
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I may have missed it but what are your power goals? Are you good with using enough e85 to meet that goal or are you in the I want to run full e85 only camp?
I don't plan to run full E85 because its not available at the pump here so that only leaves me the option of running lower content mixes.
 

Dumaurier7

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I want to be close to max torque on my tranny so I guess that'll be in the 600 - 650 whp range.
 

houtan

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I am no expert on f series fueling, but e50 should be plenty of octane for that whp. No clue if that DI setup can flow that fuel at that whp. I know PI can supply enough fuel though because I run that on my car.
 

SLOWESTN54

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I am no expert on f series fueling, but e50 should be plenty of octane for that whp. No clue if that DI setup can flow that fuel at that whp. I know PI can supply enough fuel though because I run that on my car.
Mixing just isn't fun especially when you have to go to 2 different pumps.
 
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houtan

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Haha. I personally don’t mind it but I get it that some people can find it annoying. The other thing is on Straight E85 my gas mileage is atrocious. Usually my E85 is right next to the super unleaded so I don’t have to move my car, just swipe my credit card twice
 

SLOWESTN54

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Haha. I personally don’t mind it but I get it that some people can find it annoying. The other thing is on Straight E85 my gas mileage is atrocious. Usually my E85 is right next to the super unleaded so I don’t have to move my car, just swipe my credit card twice
haha I dreadfully have to drive to 2 different pumps. But i don't want PI in my daily driver, and 94 octane here is horrific.
 
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Dumaurier7

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May 19, 2020
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Based on all the pro PI responses I hope its safe to assume ill get a buyer for my complete PI set up when it becomes available!!?? :grin:
 
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Torgus

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Nov 6, 2016
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Dumaurier7

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May 19, 2020
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:sweat: Then I guess I'll just keep it ! I've been piling up too many parts that just aren't getting sold.
I've decided to take the chance and sell my entire PI system on here it consists of the Reflex+, Fuel it PI plate and BMP 750cc injectors, (I will be keeping the fuel pressure sensor and my E sensor and harness,) please pm if interested .
 

Dumaurier7

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May 19, 2020
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Not really, I decided to simplify by going back to the OEM design but upgrade the HPFP and eventually the injectors.m, as stated before I was also under utilizing the Reflex so it just makes sense to sell it.
 
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