Jump to content
SAU Community

Recommended Posts

go right ahead then, up your pressure 5psi or 10 psi. Then add the rising rate of 1:1 to it. I run 22psi on some days, hmmm, that would give my standard injectors (if they were still fitted) a good, 20psi+ extra pressure. And people with the stock turbos, gonig from 7psi to 13psi, thats an extra 6psi, plus your claimed 5psi or even 10psi. 10psi to 15psi is not only a lot of pressure, but a lot more flow for these 15yo injectors..

You'd rather risk doing that, and blowing your engine, than getting new, fresh injectors?

Do you know how many GTR's and GTS-T's I have seen with stuffed injectors, running at standard pressure? Oh, but you're the expert. My bad.

Edited by The Mafia
  • Replies 71
  • Created
  • Last Reply

Top Posters In This Topic

I won't tune a car with a malpassi FPR now. I turn them away till they put a stock one back on or get a sard or similar

Last one i had on the dyno had 3 different AFR's on 3 power runs in a row... 11.5 12.5 and 13.5 LOL. those damn italians.. they think they are gods gift to the world.

ALSO i would get rid of that ECU. it is shit. Sorry to break the news to you.

yuck.

The last 2 cars I tuned, we had to take them off and bin them.

The AFR's would be from one extreme to another. You go WOT, the AFR's would go to 11:1, not touch the tune, then WOT again on the next run, 13:1. Put the standard one on, and AFR's would hold perfect.

They are junk.

have you found any info about the latency of your injectors yet chris?>

Nothing that refutes the info my current tune is based off unfortunately. Ah well, loving the flames for the moment! My fuel efficiency sucks though >.<

from what i have heard... but it depends on where you want to take the car...

for the 300 rwkw you mentioned you'll want a better ecu, bigger turbo (hks 3037 pro s or similar), injectors, fuel pump, Z32 afm OR map sensor'd ecu, cams are an option and then you'll be dancing around the limits of the stock engine.

300 rwkw is expensive in gtst form...

stick to 250-280 tops imho

280 is pretty good tho right? hmm alright...

i have heard good things about Power FC and also Wolf seems to have a few ppl happy with it..

what do you guys recommend?

Also will the SARD 550CC injectors do well with the power i want to reach?

Edited by palmer

yeah the 550's will be fine but as previously stated bombtrack is having latency issues with his... they are shooting fuel for too long and makin teh massif flames...

nismo 555's are probbaly the easiest option

power fc > wolf

haltech also a good ecu option...

ok

so get some Nismo 555 injectors, Z32 AFM, maybe some Cams and see how it runs with the EMS Stinger at the moment... if im happy ill leave it... if not sell the Stinger and get a Haltech or the Power FC

what fuel pump would be a good option?

the EMS stinger is a map sensor ecu so you wont need the Z32 AFM.

Just get the injectors turbo and see how you go with your ecu. if you like your engine and want it to last id get something else.

But try your luck. a new engine is only $1500

:D

Do you know how many GTR's and GTS-T's I have seen with stuffed injectors, running at standard pressure? Oh, but you're the expert. My bad.

I post this;

Discussing this with you seems pointless since you have nothing of substance to argue with.

Then you post this. You're blind, and possibly stupid.

I won't tune a car with a malpassi FPR now. I turn them away till they put a stock one back on or get a sard or similar

Last one i had on the dyno had 3 different AFR's on 3 power runs in a row... 11.5 12.5 and 13.5 LOL. those damn italians.. they think they are gods gift to the world.

I said exactly this about 10 posts back, and agree with you 100% Guilt-Toy, I refuse to tune cars with them installed because they completely waste my time trying to diagnose fuel pressure problems.

Factory ones work fine.

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

    • Hi guys my TPS voltage is reading over 2v at idle.  My Haltech ECU is reading around 40% throttle position at idle also which is really strange. Note the actual throttle position sensor is brand new…    anyone have any experience with this or know how to calibrate it on Haltech ? 
    • The OEM disk will not work on any AEM ECU, you need to use the one they made. You shouldn't have to flip the CAS or whatever you were describing, if you set the ignition sync offset correctly it can't backfire. Make sure you're using a spark plug lead on coil 1 instead of the timing loop to avoid weird issues with the timing light. Double check that your timing settings are actually correct, like is the 24 tooth configured correct or should it actually be 12 teeth for 1 crank revolution? I also found this: 305817248-AEM-Undocumented-Settings-v1-2.pdf    
    • Yeah, I don't believe the M35 uses a deadhead system.
    • Have you done your thinking backwards? 3 bar, 43.5 psi pressure drop being the presumed specification for an injector, means you need 3 bar upstream when they are firing into atmospheric pressure, and more upstream pressure than that when on boost (you add your boost to your rail pressure to maintain 3 bar across the injector) and you need..... less pressure upstream when you have vacuum in the manifold. So, presuming that you're idling at -10 psi, then you only need ~23 psi in the rail. I realise that I did not need to say all of that to you specifically Matt, once you'd realised your mistake. It's mostly there for complete clarity for others.
    • Have you reached out to the guys at Spool Imports? They are a Ross dealer, I can imagine they would have the rings just sitting on the shelf (I could be wrong).  
×
×
  • Create New...