Xtreme-DI EVO fuel upgrade discussion

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1sikvic

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Ok awesome. I guess it's time to do the mod.
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Nitroturtle

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I was seeing fuel pressure drops with the undrilled line at high rpm wide open throttle. After drilling the line it helped quite a bit. All good now that I got retuned though fueling looks good.
In this position myself currently, looks like I need to drill my line. Did you remove the intake manifold or get it without? I was able to see it from underneath on the lift and my buddy got a hand on it so tempted to try it without. If you removed the intake manifold, how difficult was that?
 

ebatr24

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In this position myself currently, looks like I need to drill my line. Did you remove the intake manifold or get it without? I was able to see it from underneath on the lift and my buddy got a hand on it so tempted to try it without. If you removed the intake manifold, how difficult was that?
I didn’t want to remove the intake manifold as I thought it would be difficult. Apparently it’s really easy from what I heard. If you want to do it my way, remove the cold side intercooler piping bracket, the battery, and undo a few hoses you should be able to get to the bracket holding the fuel line to the block that way. Breaking the fuel line loose from the fuel rail was actually the easiest part. To get enough torque on the fuel rail side when putting it back I used a crows feet wrench socket, made my life easy easier after struggling with regular wrenches.
Honda Civic 10th gen Xtreme-DI EVO fuel upgrade discussion 74EE1296-BF53-4F93-AB0E-45AC4C8FBCDF
 
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I didn’t want to remove the intake manifold as I thought it would be difficult. Apparently it’s really easy from what I heard. If you want to do it my way, remove the cold side intercooler piping bracket, the battery, and undo a few hoses you should be able to get to the bracket holding the fuel line to the block that way. Breaking the fuel line loose from the fuel rail was actually the easiest part. To get enough torque on the fuel rail side when putting it back I used a crows feet wrench socket, made my life easy easier after struggling with regular wrenches.
74EE1296-BF53-4F93-AB0E-45AC4C8FBCDF.jpeg
Got a photo of the botl what you used a Crows feet wrench for
 
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Got a photo of the botl what you used a Crows feet wrench for
It’s the nut on the fuel line at the connection to the fuel rail which is under the intake manifold and almost impossible to get to otherwise without removing the manifold
 


ebatr24

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It’s the nut on the fuel line at the connection to the fuel rail which is under the intake manifold and almost impossible to get to otherwise without removing the manifold
Yup what he said, it’s where the fuel line connects to the rail. With a wrench it’s hard to get enough leverage maybe my arms were too big idk. It’s also hard to get the wrench on since you can’t see it. The socket makes it easy to put the nut on by feel and the socket makes it easy to put enough torque on it.
 

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Yup what he said, it’s where the fuel line connects to the rail. With a wrench it’s hard to get enough leverage maybe my arms were too big idk. It’s also hard to get the wrench on since you can’t see it. The socket makes it easy to put the nut on by feel and the socket makes it easy to put enough torque on it.
So which angle did you approach it from, the top or the bottom?
 
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Thank you for the info! I am more confident now in tackling the hpfp.
My big obstacle right now is how to safelly replace my camshaft
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