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Old 01-13-2008, 11:35 PM   #1
dexterous
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Default 2005 STI - Perrin Fuel Rail install help needed (Looking for Picts)

Guys,

After a good bit of searching, I have given up on finding what I am looking for and have decided to start a new thread.

I am looking for pictures and information on house routing for my side feed style Perrin fuel rails. It just seems that no matter how I try to route the hoses, they end up looking like crap. The other issue is that I am trying to setup the lines so that they will work with both my stock FMIC setup AND my APS DR725 FMIC that I have on backorder.

I did find this thread which helped a lot with the placement of the junction block but I also need to know where to route the rest of the hoses. Does everybody just run the lines on top of the intake manifold?


I am looking for picts of the entire engine bay and suggestions on making the install look the cleanest possible. My motor is currently out of the car and sitting on an engine stand so that should make the line placement much easier. I do want to get everything back together asap so please post up some info. Thanks.
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Old 01-14-2008, 05:06 PM   #2
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Anybody?
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Old 01-15-2008, 01:26 AM   #3
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Hello, dex. Do you have the older model with the braided lines? Or the newer one? I didn't see any way to route my braided model anyway other than over the top.
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Old 01-15-2008, 10:14 AM   #4
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Quote:
Originally Posted by DroppedClutch View Post
Hello, dex. Do you have the older model with the braided lines? Or the newer one? I didn't see any way to route my braided model anyway other than over the top.
I have the new kit without the braided lines. I have started setting them up to go over the top of the intake manifold.

By the way, do you think that it would be an issue to put a 90 degree bend brass fitting in the return side on the way to the FPR? I just want to make sure that I don't screw up the flow to much or something.
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Old 01-15-2008, 11:56 AM   #5
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ask andy, he did mine.
his ID is [email protected]
good luck
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Old 01-15-2008, 07:01 PM   #6
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A 90deg fitting shouldn't be a problem at all, esp. if it is a bent one and not a corner.
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Old 02-18-2008, 04:46 PM   #7
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This is what I ended up with:










Hopefully everything will fit with my APS DR725.
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Old 02-18-2008, 04:48 PM   #8
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Note that I decided to keep the FPR in the stock location. I cut it out of the stock fuel rail bracket and bolted it back to the bottom of the intake manifold. I then ran lines from the fuel block down to it and then to the return lines on the rails. This setup seemed so much cleaner than the perrin instructions.

The only downside seems to be that if I were ever to have an issue with my FPR, I would need to pull the intake manifold again.
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Old 02-18-2008, 05:31 PM   #9
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Feel free to comment on how this install looks and any suggestions on how I may have done better. Thanks!
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Old 02-18-2008, 06:25 PM   #10
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keep your lines ON TOP of the intake manifold.... the farther away from the block/heat as possible... remember... colder fuel is more power....
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Old 02-19-2008, 08:08 PM   #11
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Quote:
Originally Posted by All4bSpinnin View Post
keep your lines ON TOP of the intake manifold.... the farther away from the block/heat as possible... remember... colder fuel is more power....

All4bSpinnin,

Thanks for your feedback, this is very good info for others who have not done this before. By the way, I don't have any feed lines near heat sources. If you look closely, you will see that only the return lines get near the block.
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Old 02-20-2008, 02:06 PM   #12
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Dexterous,
Sorry just saw your post now! The routing is up to you, just making it smooth and away from heat is important. Even heat isn't that important as the hose cover will protech the line from most anything you are going to route it by.

I actually like how you cut the cover in the middle for the tees. Normally i just cut separate pieces, but that looks nice!

One thing i see, where is the Fuel pressure regulator? If you had an 08, i wouldn't be worried, but maybe you have an aftermarket one??

While people have now seen both braided and the rubber hose, and now see the savings of the rubber hose version, what do people think? We haven't gotten much feedback either way.
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Old 02-20-2008, 05:27 PM   #13
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Default Here ya go, picts!




Sorry.... good luck!
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Old 03-01-2008, 11:00 PM   #14
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Quote:
Originally Posted by PERRINJeff View Post
Dexterous,
Sorry just saw your post now! The routing is up to you, just making it smooth and away from heat is important. Even heat isn't that important as the hose cover will protech the line from most anything you are going to route it by.

I actually like how you cut the cover in the middle for the tees. Normally i just cut separate pieces, but that looks nice!

One thing i see, where is the Fuel pressure regulator? If you had an 08, i wouldn't be worried, but maybe you have an aftermarket one??

While people have now seen both braided and the rubber hose, and now see the savings of the rubber hose version, what do people think? We haven't gotten much feedback either way.

Jeff,

The FPR is in the stock location. After a lot of thought, I decided to cut the bracket that held the FPR to the bottom of the intake manifold so I could separate it from the fuel rails. I then routed the return lines from the rails to the T and then down to the FPR. This totally removed the need for that small hose that you supply and made for a much cleaner install. It did require a lot more work (pulling the manifold), extra parts and some careful planning but I think it turned out very nice.

Check out the pict of the FPR:

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Old 03-03-2008, 08:27 PM   #15
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Very nice! That makes alot more sense! I thought you were nuts, when i didn't see the FPR!
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Old 04-08-2008, 03:57 PM   #16
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Old 04-08-2008, 09:50 PM   #17
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Quote:
Originally Posted by pawlooo View Post
The OP linked to that thread in their original post.
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Old 04-08-2008, 10:43 PM   #18
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Quote:
Originally Posted by DroppedClutch View Post
The OP linked to that thread in their original post.
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Old 07-04-2008, 09:49 AM   #19
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Just to quickly update this thread, I actually installed these as part of a much larger install including a APS DR725 FMIC. Here are a few picts of the finished product. I ended up ordering more pyro-shield to put on the lines tha go over top of the FMIC piping.



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Old 07-20-2008, 12:21 PM   #20
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Quote:
Originally Posted by dexterous View Post
Just to quickly update this thread, I actually installed these as part of a much larger install including a APS DR725 FMIC. Here are a few picts of the finished product. I ended up ordering more pyro-shield to put on the lines tha go over top of the FMIC piping.



wouldn't you have more lag due to the extra amount of hose from the IC pipe to the bov ? wouldn't it be less if it was closer or on the IC pipe so your not having to pressurize the bov hose .
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Old 07-22-2008, 07:59 PM   #21
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Looks nice! And yes its a good idea to cover those going over the boost tubes. You might find better routing buy twisting the junction block and routing the lines under the boost tube. Under is safer for rubbing and what not!
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Old 11-07-2008, 12:33 PM   #22
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My Perrin Fuel rail is intalled underneath the intake manifold...
Is it ok to be like that?
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Old 11-07-2008, 12:52 PM   #23
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my V1 looks like that



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Old 08-13-2009, 12:38 AM   #24
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why wouldnt people take off the IM and hide all of that stuff? I have a kit coming now so I was looking for instructions and that looks like crap for all that money spent. Am I missing something?
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Old 12-21-2009, 09:26 AM   #25
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It really depends on how worried about heat you are.

My STi had the v1 perrin rails, with the SS lines. The lines were routed above the IM. While re-building the motor, I went went with the new style Perrin lines covered in pyro shield. I wasn't worried about heat with the insulation, so I routed the lines under the IM.

Old:



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Nick
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