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cbrtrx

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Yeap, was definitely not gonna try to run a vacuum line that long.
Also yeap, running the rails in parallel with the HPFP feed coming of the passenger rail (using supplied nipple) similar to stock.
Will post up pictures here when I'm done.

This is how it'll be setup

Hose Routing Full Rail.jpg

If you use the nipple screwed directly to the rail though you'll be supplying your hpfp and about 50 percent of your fueling between the 1 and 2 cylinder. Also the factory setup does not feed off of the passenger rail although many think that because of the location, look closer at how its distributes.
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Exploded_Muffin

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If you use the nipple screwed directly to the rail though you'll be supplying your hpfp and about 50 percent of your fueling between the 1 and 2 cylinder. Also the factory setup does not feed off of the passenger rail although many think that because of the location, look closer at how its distributes.
You're correct. The HPFP has a direct line from the main feed line on the stock rail.
The aftermarket rails I've seen so far for the 2018+ are similar to the one I got though regarding the plumbing for the HPFP feed.
This is my first fuel system install. Have you had any issues previously with a similar setup?


stock_rail.jpg
 

cbrtrx

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You're correct. The HPFP has a direct line from the main feed line on the stock rail.
The aftermarket rails I've seen so far for the 2018+ are similar to the one I got though regarding the plumbing for the HPFP feed.
This is my first fuel system install. Have you had any issues previously with a similar setup?


stock_rail.jpg
I personally would not feed the HPFP between the 1st and 2nd cylinder if possible. Yes I've done multiple configurations. It's better in my opinion to feed it similar to the stock setup. The actual volume in the stock rails is better then most aftermarket rails it's just the horribly small crossover point. I'd feed the DI pump first then come over and feed both rails in parallel then return back. That would have better distribution. Most of these kits and rails were designed around a gen 1/2 car and the DI pump was an afterthought. You must realize that you want to use as much DI as possible because it yields far better knock supression, it's not uncommon to still use about 50 percent of your fueling from the DI side if you don't you're just leaving power on the table.
 

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So I’m going to be in a position to order one of these in the next couple of months.
Im pretty much set on the G2 with the larger G3 intercooler. Will be running 93. Just not sure which size pully to go with (125 or 120). Reason being, I’ve got stage 2 cams and shift point around 7500-7600.
My car is a 2018 GT A10 with 3.73 rear gears, headers and Borla catback
 

BoostN IT

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So I’m going to be in a position to order one of these in the next couple of months.
Im pretty much set on the G2 with the larger G3 intercooler. Will be running 93. Just not sure which size pully to go with (125 or 120). Reason being, I’ve got stage 2 cams and shift point around 7500-7600.
My car is a 2018 GT A10 with 3.73 rear gears, headers and Borla catback
120mm should be fine imo unless your tuner says otherwise. Also depends on your fueling setup
 

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MrWolf

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120mm should be fine imo unless your tuner says otherwise. Also depends on your fueling setup
I guess it’s the fact I’m running higher shift points then normal so the PSI will be that much higher (also, ID1050 and DW400)
 

kenand1988

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I guess it’s the fact I’m running higher shift points then normal so the PSI will be that much higher (also, ID1050 and DW400)
Fueling should be golden with that on pump gas.
 

BoostN IT

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Jonyxz

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So I’m going to be in a position to order one of these in the next couple of months.
Im pretty much set on the G2 with the larger G3 intercooler. Will be running 93. Just not sure which size pully to go with (125 or 120). Reason being, I’ve got stage 2 cams and shift point around 7500-7600.
My car is a 2018 GT A10 with 3.73 rear gears, headers and Borla catback
Depends on your goals but you can always pulley down later
 

MrWolf

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Thanks all. My original plan was to go with 120mm so I’ll stick with o that.

Kit should be fun with 3.73 and A10
 

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Brad1810r80

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Kit is going to be insane with that combo. I'm actually going from 3.55 to 3.31. I'm shifting into 6th just in the 1/8 mile.

Thanks all. My original plan was to go with 120mm so I’ll stick with o that.

Kit should be fun with 3.73 and A10
 

Exploded_Muffin

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First 1/8 pass of the day! Went to the 115mm pulley.



69571719-D345-41A5-B192-5D9CD8A9C2E2.jpeg
Damn nice run Brad!
That looks like a low 9 run at around 150 if not a touch higher. Really impressive with just injectors, rails, BAP, and E30.

Did you have any fueling issues or pressure drop with the 115mm pulley?

Also what rails are you running and how do you have it connected to the HPFP?
 

TEXAS HEAT

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Also what rails are you running and how do you have it connected to the HPFP?
I'll answer this one for him, he's running VMP's 2018-up fuel rail that connects to the HPFP in the same manner that the factory does, so it has one port on each side. I'm looking at these as well.
 

Brad1810r80

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Thank you sir!! Lowest the pressure dropped to was 58psi , running the VMP rails.

Damn nice run Brad!
That looks like a low 9 run at around 150 if not a touch higher. Really impressive with just injectors, rails, BAP, and E30.

Did you have any fueling issues or pressure drop with the 115mm pulley?

Also what rails are you running and how do you have it connected to the HPFP?
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