Fuel rails - why so expensive?

[Chiefgroover]

PE800's & stock rail & 1.6bar = bang sooner or later.

[Wez]

Why?

[captainchaos]

think i just paid £128 delivered for a HKS fuel rail from Japan inc delivery

Yup paid £127.73 delivered

[Chiefgroover]

Originally Posted by Wez

Why?

The fuel inlet line from the fuel filter to the rail includes a "fuel pulsation damper" to dampen the injector pulse noise. This dampener uses an orifice and fuel line only about 7mm in diameter. Thats a HUGE restriction. The factory fuel line is capable of supporting only about 520 RWHP at the most, safely. And if the filter is clogged the slightest, that figure can drop by 50HP or more. I would like to think anyone going single would aim at 500+RWHP.
Some bigger rails feed each end with a takeoff in the center for a FPR/gauge, which you can mount remotely to your FP observation advantage.
If you wish to turn your 510bhp into rwhp, your safer changing the rail.
I have used the PHR stage 2 kit, while the fuel line fitment is a bit ignorant, and I was never able to get instructions for the relay, apart from that the rail and injector combination worked excellent however hard I boosted.

[Wez]

I see, so before I turn my boost up higher I have to remove the pulsation damper?

[michael]

So what effect would a modified standard rail (to dual feed) and the pulsation dampener bypass have on the pending explosion?

[Chiefgroover]

Wez, it would be a good idea. Keeping the fuel system fairly stock and not spending a fortune is possible if say you want 600fwhp. Take a look at Nathan Lay's car on the tdi web site. That ought to inspire an economic way of dong things. He removed the pusation dampener, (uk spec fuel system) used a different pump, and a HKS AIC. Not big expense, but he did get reliable results, as he drove the car for years (tracked it often too), and would probably still be going except when he sold it someone stole it, never to be seen again. ( I am guessing it was stripped).

[Chiefgroover]

Originally Posted by michael

So what effect would a modified standard rail (to dual feed) and the pulsation dampener bypass have on the pending explosion?

Haven't tried that one, has anybody on here?

Bound the help reduce the risk. All down to the power level you seek.
I guess it would eventualy get restricted by the small diameter of the std fuel pipes?? alough you may be able to run a similar pipe from the tank top the other end of the rail.

Something else for you to consider
http://supra400hptt.homestead.com/files/diagram.jpg

Consider the cost of repair if you starve the engine of fuel vs buying a decent fuel system.

[Chiefgroover]

Originally Posted by captainchaos

think i just paid £128 delivered for a HKS fuel rail from Japan inc delivery

Yup paid £127.73 delivered

Do tell who you bought it from?

[Alex]

As you're building up over time..get parts like rails second hand. Get the rail to fit the injectors you want...I assume you want top feed ones instead of the stock side feed ones.

How does the prices of the BL/PHR/HKS etc rails compare?

[captainchaos]

Originally Posted by Chiefgroover

Do tell who you bought it from?

Now that would be telling lol

[captainchaos]

From Nengun.com
Product Code Delivery Price
6 x HKS - Fuel Injectors
HKS 1000cc Top Fed Injector 1402-RA002 TBA GB 432.54

1 x HKS - Fuel Rail
Toyota Supra JZA80 2JZ-GTE 93/1-97/8 11.0mm (From 97/9- VVT-i Not Suitable) (After market Injectors needed) 1407-RT004 TBA GB 112.14

1 x Trust - Greddy - Intake Plenum - Toyota Supra
Toyota Supra E-JZA80 93.5～97.8 2JZ-GTE 13512302 TBA GB 347.18




Sub Total GB ï¿¡ 891.87

Inc delivery 1,047.45




http://www.nengun.com/engine/hks/fuel-rail

[bondango]

Originally Posted by Chiefgroover

Yeah and how do you pass MOT with a big fuel line most of the length of your car cable tied to the oe fuel pipes?
Maybe you get away with it in G.B. but in N.I. where govt centers do the Mot you have no hope.

Ernie ive put a few cars through the MOT here no probs, and some with NOS lines aswell. The trick is to use the existing chassis trunking were possible, or mount your own Cable/Pipe Trunking.

[bondango]

Originally Posted by captainchaos

From Nengun.com
Product Code Delivery Price
6 x HKS - Fuel Injectors
HKS 1000cc Top Fed Injector 1402-RA002 TBA GB 432.54

1 x HKS - Fuel Rail
Toyota Supra JZA80 2JZ-GTE 93/1-97/8 11.0mm (From 97/9- VVT-i Not Suitable) (After market Injectors needed) 1407-RT004 TBA GB 112.14

1 x Trust - Greddy - Intake Plenum - Toyota Supra
Toyota Supra E-JZA80 93.5～97.8 2JZ-GTE 13512302 TBA GB 347.18




Sub Total GB ï¿¡ 891.87

Inc delivery 1,047.45




http://www.nengun.com/engine/hks/fuel-rail

and a few more options...


COMPLETE FUEL RAIL KIT FOR SUPRA 2JZA80 93-98 SUPRA TWIN TURBO .COMES WITH INJECTORS (YOUR CHOICE OF 750CC 850CC 1000CC,RODCHESTRER OR 1600CC BOSCH INECTORS ) SEALS UPPER AND LOWER AND INJECTOR CLIPS

£360 delivered

ALAMOAUTOSPORTS.COM or Via Ebay

[Gamer]

Originally Posted by bondango

and a few more options...

[qimg]http://i23.ebayimg.com/01/i/06/34/ea/6e_2.JPG[/qimg]
COMPLETE FUEL RAIL KIT FOR SUPRA 2JZA80 93-98 SUPRA TWIN TURBO .COMES WITH INJECTORS (YOUR CHOICE OF 750CC 850CC 1000CC,RODCHESTRER OR 1600CC BOSCH INECTORS ) SEALS UPPER AND LOWER AND INJECTOR CLIPS

£360 delivered

ALAMOAUTOSPORTS.COM or Via Ebay

Not really sure that last link (ebay seller) will be so inclined to send items over to the UK after getting stung by no1 boy racer..

Basically he did a chargeback on him for selling not as described and got the money payed back via the paypal claim and also kept the goods. He then came on here and attempted to sell the fuel rail to us.

Boy racers feedback with the transaction in question:
http://feedback.ebay.co.uk/ws/eBayIS...:feedback:2:uk

Thread selling the same injector rail:
http://www.mkivsupra.net/vbb/showthread.php?t=90793