2jz/1jz injector questions

[Jaguar]

I'm pricing fuel upgrades and I was curious about injectors. I really don't want to spend $900 for some injectors, and so I had a few questions.

What kind of power are the USDM 550s good for?

What is the best injector for the money?

What's maximum boost on 2jz-gte stock twins? With 550s?

I have heard everything from Sard to RX-7 injectors. Please shed some light.

 

[Mr.Cool]

I'm also lost on this topic, i spent half the day researching and i still cant find anything.

 

[soapra]

Jag

Buy a Fuel rail like HKS and buy some RX7 550's and be done with it.

 

[tissimo]

if you get a top feed rail just get some precision injectors.. they're like 400 or so a set..

550s on the twins can handle anything you throw at it.. ~ 500 hp youre going to start maxing out the 550s..

 

[Ric]

Are you 1JZGTE? If so you're not going to be able to install 2JZGTE twins.

550's are good for 500whp.

 

[Jaguar]

Okay so HKS fuel rail is the rail of choice then? I see that the Sard fuel rail is half the price, but I'm guessing that you all know something that I do not. :1zhelp:

 

[Ric]

Fuel rail is a fuel rail.

http://manictechracing.com/mtr1j50fukit.html

 

[Jaguar]

check this out: http://www.manictechracing.com/mtr2jromaraf.html

Helluva deal!

Edit:

http://www.manictechracing.com/romarafura.html

Ross Machine Racing Fuel rail machined from T6063 Dash 8 or 10 Fuel rail extrusion. This rail does have the optional center return on the bottom f the rail that you can either use or plug. This kit comes with (2) Dash 8 or 10 O-ring to AN fittings, clamps, hardware, Injector Bungs, and the Dash 8 or 10 Rail. This item is perfect for those looking to upgrade their fuel system. Why pay $400-$600 dollars for the same thing you can get here. This is not some mass produced overseas knock off. We stand by Ross Machine Racing products 100% and it can be seen in the fact that a number of proven race teams (paradise racing, MSP, Bullish) run their products. Comes in 2 size options -10 or -8

What are the -10 vs. -8 size options mean? Which is better? Why?

 

[jz*supra]

-10 has a larger inner diameter. -10 will flow more fuel than -8, however a -8 can flow allot of fuel.
People running dual walbro pumps run a -8 or two -6 lines. I would get the -10 and then if u decide on a -8 line just buy fitting to go from -10 to -8.

 

[Jaguar]

Thanks jz*supra! Good info.

 

[Rich]

Are you 1JZGTE? If so you're not going to be able to install 2JZGTE twins.

Oh yes you can, my best friend has them on his 1.5jz. You do need two JDM front turbo's though.

 

[Jaguar]

Oh yes you can, my best friend has them on his 1.5jz. You do need two JDM front turbo's though.

Interesting! But I'm swapping 2j. Was planning on the stock twins but leaning toward going single now. :1zhelp: :aigo: Lots to consider. Lots of money. But then, a lot of benefits as well. :naughty:

 

[hottscennessey]

Oh yes you can, my best friend has them on his 1.5jz. You do need two JDM front turbo's though.

Wow, that answers that question.