Shopping for a TOP-FEED fuel rail...JGY vs. JWT vs. Phat KA-T...Want some input!

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MarkEmark
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Hey there,

Many of you know that I just got my engine completely rebuilt (it's installed now, and I've already put 100 trouble-free miles on it too!). Anyway, my fuel system was maxed out before I even rebuilt the engine (370 cc fuel injectors, stock MAFS, JWT ECU), so before I can crank up the boost on this expensive engine, I need to upgrade the fuel system.

I'm going with top-feed 50 lb MSD style fuel injectors (found a set of 4, brand new for $160 SHIPPED....real good deal), a Cobra MAFS, and I already have the JWT ECu reprogrammed for it.

What I'm looking around for now is a TOP FEED KA24DE fuel rail, but some of them seem like a pretty big rip-off for the materials and manufacturing involved. They look about as straight forward and easy to make as it gets.

That being said, the cheap ones, like Boost Designs, I've heard are complete crap, and they are the cheapest. Obviously I'm not going that route.

JWT should make a decent top-feed fuel rail, but I remember Foster posting about how his JWT rail did NOT fit well and caused a fuel leak, and that he needed to make custom brackets to make it fit better (and he eventually upgraded altogether to a Phat KA-T one). Is anyone else using a JWT fuel rail without any problems?

JGY customs seems to make a pretty good one, and very competitively priced at $135. Is anyone using one of these, or has anyone heard of any quality issues with this? I really do NOT want a leaky fuel rail.

Project Siliva makes what looks to be a nice top feed KA fuel rail, but they do not fit MSD style fuel injectors.

So that brings me to the only other option I've heard of, the PHAT KA-T one, which is probably undoubtedly the best, but is also $65 more expensive than the JGY one ($200 total). Being that my financial situation is downright deplorable after the massive amounts of $ I spent on the engine rebuild, $65 makes a pretty big difference to me.

So I guess the main point of this thread is to ask about the quality of the JGY customs fuel rail, and if it's as FUNCTIONALLY good, as say, the Phat KA-T one.

Here's the link to the JGY one.

http://www.jgycustoms.com/240sx/fuel.htm

Are there any other good top-feed fuel rails I haven't heard of out there?!?

As always, I appreciate the input.

Now fully built,

Marc
My fully-built turbo s14: 343 rwhp @ 6000 rpm, 16.5 psi on a GT32 Articles on turbocharging your car


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Warped
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http://www.rossmachineracing.com/extrusion.html

or

http://turbonation.com/rail.htm

or

http://www.atpturbo.com/Mercha...e=FUL

or you could also have them make a custom one here or maybe 10 for some of us

http://www.rossmachineracing.com/customrail.html

i know im not answering your ? , just giving other options
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fiznat
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Keep in mind also if you decide to go with the phat ka-t rail that you HAVE to use an aftermarket, in-line fuel pressure regulator. The PK rail does not accept the factory FPR like JWT and others do, so you need to consider that when adding up your cost. Also PK uses AN fittings on their rail which must be purchaced as well (and are not cheap).

That said though, I still reccomend the PK rail because it is just absolutely 100% top notch. Compared to the PK rail the JWT looks like a horrible piece of trash, honestly. It adds up to be a lot more money but I just feel much safer with it and I'm glad I decided to upgrade.

MarkEmark
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fiznat wrote:Keep in mind also if you decide to go with the phat ka-t rail that you HAVE to use an aftermarket, in-line fuel pressure regulator. The PK rail does not accept the factory FPR like JWT and others do, so you need to consider that when adding up your cost. Also PK uses AN fittings on their rail which must be purchaced as well (and are not cheap).

That said though, I still reccomend the PK rail because it is just absolutely 100% top notch. Compared to the PK rail the JWT looks like a horrible piece of trash, honestly. It adds up to be a lot more money but I just feel much safer with it and I'm glad I decided to upgrade.
I have an aftermarket Aeromotive FPR mounted right near my passenger side strut tower. AN fittings are expensive, but then again the aeromotive FPR only had AN fittings too and they make AN to hose barb style fittings so I was able to use standard fuel line....although it wouldn't make much sense to use adaptors on both the FPR and the fuel rail just to get around using stainless steel aeroquip fittings lol. But that is just more $.

Anyone have experience with the JGY?

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fiznat
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Cool... hey BTW you're coming to the 240 meet right? Check my sig and IM me!

MarkEmark
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fiznat wrote:Cool... hey BTW you're coming to the 240 meet right? Check my sig and IM me!
I'm still not sure...I'd like to though....hopefully I'll have broken in the engine by then.

Back to the topic, I wonder if GReddy's fuel rail for their 240sx turbo kit is available separately? I know the RC fuel injectors it uses are top-feed, and they look very similar to MSDs...wonder if they have the same dimensions...

-marc

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jmwenick
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Is the top feed fuel rail a necessity? How much horsepower can we make on the stock fuel rail with side feed injectors like the 550s on IAP? Just trying to help and learn at the same time
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uncle_louie83
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i too am trying to locate the best bang for the buck fuel rail...i dont wanna make one. i want one with all the shiz i need....but i dont have the money for the phat-ka stuff.....so i was prolly gonna go with the JWT setup since it looks nice and i hear is fair priced...they dont have prices on there website....can anyone tell me the price off the top of there head?

lewis

USsil80
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te top feed injectors are just more avilable and cheaper..from what i have seen.....plu si think it looks better
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jmwenick
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ok, thanks for the input, i just checked and you're right. top feed injectors are wayyy cheaper.

dsylvia
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i paid $220 for my JWT fuel rail. Fitment was ok, but could have been better for the price you pay.

it was easily fixed though. just had to elongate on of the holes on the each of the two mounting brackets.

i havent actually fired up the car yet though, so im not sure if it'll leak or not, it shouldnt though
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Structure240sx
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usually greddy doesnt sell individual peices

i have a jgycustoms fuel rail. actually worked out nicely. i just had to put 3 washers between the mounting brackets and intake manifold. i havent had one leak issue. its tapped for the factory fpr but i have a nismo on it
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catty
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I have the project silvia fuel rail, fitment was perfect and no leaking issues. But like you said they dont fit MSD type injectors. But for 80 shipped its a great buy for those using nippon denso style injectors (RX7,DSM, etc.) You may try and contact them and see if they have any that will fit the MSD style injectors, worth a shot.
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uncle_louie83
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hey catty...where did you get that fuel rail at...im interested because i have dsm injectors?

Projex240
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I have a JGY rail and i didnt have aproblem with it at all. It requiers spacers for the brackets that hold it to the manifold, which it may come with, i cant remember.

BUt it s a really nice peice, ZERO fitment problems, and you can order it made to use the factory FPR(or nismo one), or an aftermarket FPR. I got mine for 135. Compared to other cources, its the bets priced one out there.JWT is redunkulous and expensive. Stay away from JWT for anything other than ecu's.

-Josh
You realize you just smoked a z06? You do realize that, right?-D.J._my first race with the turbo_

MarkEmark
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Projex240 wrote:I have a JGY rail and i didnt have aproblem with it at all. It requiers spacers for the brackets that hold it to the manifold, which it may come with, i cant remember.

BUt it s a really nice peice, ZERO fitment problems, and you can order it made to use the factory FPR(or nismo one), or an aftermarket FPR. I got mine for 135. Compared to other cources, its the bets priced one out there.JWT is redunkulous and expensive. Stay away from JWT for anything other than ecu's.

-Josh
The JGY would have been my second choice...I went ahead and bought a phat ka-t one for $175. It's $40 more than the JGY but I'm sure the quality is also better too. I don't like the idea of spacers being used on the bracket...seems like an after-thought to me.

Structure240sx
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definitly a smart idea

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grimple1
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Ivan and Gary at Phat are friendly/knowledgeable people. You won't be disappointed with their track record of high quality work .
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DRIFTEADOR
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do rc's use the denso sized supply port or msd sized? rc's can be found for pretty cheap.
KA-T in progress...

MarkEmark
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DRIFTEADOR wrote:do rc's use the denso sized supply port or msd sized? rc's can be found for pretty cheap.
That's a good question, but I just bought four brand new MSD 50# injectors off of ebay for $142.50.

Man I love ebay!

Projex240
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LOL--for real

NExt stop if ebay didnt turn up anything is http://www.racetronix.combest prices on top feed injectors out there.

-Josh


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