Jump to content
SAU Community

Recommended Posts

Hi everyone,

I have just put a set of Garrett -7s on the 34 GTR, with HKS boost controller to 1 bar, stock injector/fuel pump/fuel rail, with full WELDINA NE-1 exhaust.

Before doing that the injector is about to maxing out about 1 bar on stock turbo.

My question are:

* Is it safe to drive the car hard for the current mod? (new mod's on the way)

* What is the consequence of maxing out the injectors with a bigger turbo? is it going to damage the engine in any way?

* What happens if I increased the boost to 1.2 bar with stock injectors?

The car is not even on road yet so all these questions are hypothetical. however I would really appreciate if I get some answers.

Thanks.

Link to comment
https://www.sau.com.au/forums/topic/345748-is-it-safe-to-drive-the-car-hard/
Share on other sites

Maxing out the injectors means that they cannot flow or add any more fuel to compensate for the increased air flow when u turn up the boost so the engine will lean out and guess what.....BANG!!!!

Turn down the boost to 10-11 psi and u "should" be good until an injector AND ecu upgrade

Maxing out the injectors means that they cannot flow or add any more fuel to compensate for the increased air flow when u turn up the boost so the engine will lean out and guess what.....BANG!!!!

Turn down the boost to 10-11 psi and u "should" be good until an injector AND ecu upgrade

Thanks!

Got pfc. 550cc injectors are on the way. are they big enough for -7?

Also wondering which is more harmful to the engine: too much air or too much fuel?

"Give me your R34 GTR, you don't deserve it." :/

Seriously...

550cc will be good enough for pump...if u have plans to go E85 u might need to go bigger

Too much air with not enough fuel....as in your case

lol we all stay up a bit late...

Bosch 044 + 550cc will be the fuel set up.

E85, is it road legal? i'm not sure just asking...

i was running -7's on my gtr on the stock ecu and stock injectors for quite some time and it was fine, it was tad on the rich side though

good to know snozzle. thanks for the info.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • That ring thing is interesting how it's holding everything together 
    • Hey guys. I have a 400R on its way to Australia from Japan currently and have a few questions I’m hoping others may be able to help with.   Wondering if anyone here has had any luck getting the Sat nav unit to work in Australia!? Assuming the Stereo is as simple as a band expanded and tv won’t work?  Seeing as they’re based off a Q50 which is Aus delivered is there any way to link that system to the nav? Nav modules and head unit are different part numbers and appear slightly different at the rear with plug ins etc. can I put my xtrail sd card into the rv37 and will that convert the maps or update to Australian? Has anyone got any advice here?     also has anyone fitted the factory remote start and Security system once it’s landed in Australia? I put an enquirey to Nissan Japan in via a third party, and they suggested it needs a Nissan Japan dealers device to setup and couldn’t guarantee if one here could do it or not. They can supply and I can physically fit it but to setup I would need a dealers device. Any information here would be appreciated also. I’ve seen one here with it fitted already prior to leaving Japan at a dealer/inporter, so clearly passes compliance and works when fitted Japan and doesn’t need changing here.      also, does the tyre inflation sensors work here? Does anything change with them when the vehicle arrives? Where are they actually situated? I’ve read they have batteries and they need to changing at times and seems like resetting involves the nav system?    any help here would be appreciated and any other aust specific information to help would be great. Looking forward to see what the current generation skyline is like and eager to see how many of the gadgets can be utilised here.  Thanks in advance 
    • Do need to take it with a pinch of salt. One of the adapter failures, they clearly had setup issues with the flywheel.  One of the slipping ones I spoke to and it was pretty clear the throwout was riding, rather than fix, just swapped to a new clutch.    These clutches are being put in anything from 5k offroad 4x4 beaters, GR yaris, 500hp commodores to 1200hp barra monsters. Bound to be some issues in some of them when they are not a simple bolt in affair due to the changes in height.    There is a lot going on in this picture and unless I did the job myself no way to tell what really happened. 
    • I did this mod in 2019  You just have to modify the top bracket of the ABS/TC/Fuel Pump Control ECU so it sits more upright and closer to the back seat and run a good quality positive battery lead from the engine bay, the negative lead i just bolted down to the body in the boot.
    • Damn... Not the feedback I want to hear.
×
×
  • Create New...