I am planning to go for the GT3071 but I don't want to grab its limit yet as I am on a TIP, roughly 630hp-650hp is my primary goal, as I know the GT30s has much to improve later on and I just want to reserve the upgrade later, so I want to ask, for my primary goal can I just add a 5 bar instead of bigger injectors? Thanks

 

you need injectors for sure...

 

As they are actually a huge set? Whats my plan was bigger turbo, low boost on the coming stage...Thought K16G could keep stock injectors with 5 bar producing similar power.

 

If you are going w/ 30s, you really need a full fuel system. Fortunately there is a tried and true solution that matches well w/ the 30s (2 Bosch 044, rails, lines injectors).

 

It might sound a little bit silly, my current average mpg is around 17 with tune, exhaust, headers, stock K16s, and my place I am currently located is more than double in US on the petrol price.
My concern is, running big injectors maybe running out many things like not able to being a DD, can you guys advise what's the differences between stock or let say 60 lbs injectors?

 

now your talking about fuel prices ? ... yet you want to run 30rs on a oem fuel system? is that your calculation? 17 mpg( run big turbos low boost to save money on fuel?)... if so stop what your doing.. get a smart car and forget it... your wasting your time and ours asking silly questions...
I don't know where to even begin and end...
bottom line: big turbos need more fuel because they push more air... what else do you need to know...
good luck
markski

 

Misunderstood anyway. Not about saving, injectors are pretty cheap actually, but refer to some threads, changing injectors will led some of the calculations on the dash is not accuracy anymore. And also, low 600 crank from 3071 looks easy,that's why I ask about stock fueling is fine or not. That's all. Thanks.

 

And I found some GT kits without upgrading injectors and fueling system.

http://www.sharkwerks.com/products.php?pid=172

 

plus 1. I f you are getting Gt30s the last thing you should be concerned about is gas mileage.

 

You can upgrade injectors without hurting mileage as long as you stay out of the throttle. LOL! The bigger injectors just provide the additional fuel if it is needed.

 

two GT30s on 440cc injectors lol....

 

Thanks guys, and a 5 bar? If I plan to not run more than 1.1 bar at the first stage.

 

you will run out of fuel at .9 bar with those turbos...

 

So is 60lbs + 5 bar enough to full fill not more than. 1.1 bar?

 

I meant just on stock injectors with a 5 bar you can run .9 bar... if you do injectors you do not need a 5 bar- at least we do not use it with our tunes.. and you have fuel for 630 rwhp...