Jump to content
SAU Community

Recommended Posts

lol dont do that, though it would be hilarious....a better question either would have been....how much boost can i run with 'x' mods, or whats the highest kw the stock injectors can take. your next upgrade is afm and injectors

no i meant 78psi

i say this because PSI is pointless in comparison for this sort of thing. it means absolutely nothing.

PSI is only relevative to the compressor you are using. if he tried to run 14psi on a GT40 then the stock injectors have no hope.

if he tried 14psi on the stock turbocharger then its fine. so 78psi on the stock turbo is probably fine for stock injectors.

it wont flow any useful air past 12psi anyway so the other 66psi is just extra heat and nothing more.

so paulr33... im running 10psi on a GT30R on stock injectors. safe?

depends on the compressor model you are using

the compressor map would give you the true answer to this

but a 30R will flow quiet a lot of air even at 10psi

so you might be on the border line, a dyno plot will give you the answer if you cant find the compressor map info or dont care about the map and reading it

im running a GT3076R with a RB25 turbo's highflowed exhaust side.

84 trim, 0.82 a/r. (i think they the numbers from turbobygarrett.com)

Edited by Pauly33GTS-t

...the correct question is "how much power will stock injectors handle"

jump on some websites of injector makers. they have a calculation applet thing that allows you to put in all your factors and it will rate the injectors for power. rc engineering comes to mind

IF the stock injectors run to 220rwkw as mentioned before, then you can have a t66 turbo on your car, just cap the boost to that power.

get a nismo fuel reg

i would consider changing the pump or hard wire it to 14v (cubes did a howto guide), the wallbro's can be known baddies

what ecu or piggyback are u running? i see no mention of either.

i would suggest stand alone. powerfc is ideal, but pick whatever you like.

either way monitor injector duty and go from there.

stock ecu on those upgrades = bad idea and poor net results

the car will drive like brand new with a complete tune

My local tuner has a few Skylines running around town with 300rwkw with an upgraded fuel pump, rising rate fuel regulator and stock injectors (new turbos and other supporting mods too)... he says when I go to upgrade, I can get 250-260rwkw on a "really safe" tune with a similar setup, but he said the 300 ones aren't running dangerously or anything. This is a tuner that's had several cars feature in HPI (but I don't know how much credibility that magazine gets on here). Because of threads like this, I've been wary, and asked him several times about upgrading the injectors as part of my upgrade plans, and every time he says it isn't needed for my aims (even when I say money isn't a factor in the decision).

paul mate, im running on stock ecu and over the last shit it already seems like a new car...

Im getting hissing and clicking from the injectors tho, me thinks the o-rings have gone on them.

I'll be going Emanage ultimate it seems, as soon as I know for certain someone in adelaide tunes them well.

I would have thought the only real test was an AFR on the dyno?

Any specs on a website will be a guide only.

depending on mods the factory injectors may be fine if they can support a safe AFR at full boost.

Mike

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

    • @dbm7 and @GTSBoy thank you both very much! will give that a shot!
    • Sounds good. Provided the panel is flat/level I'd be happy to start the painting process.  While you are learning, for sure you could do this. Its only paint, you can always sand it all back and start again. Its only your time and money on materials, but while you're learning, really its time and money spent on your education.  Once you know how to do this bodywork and painting, you won't want to waste your time and money on frivolous activities lol. 
    • Yep I will use a guide coat after putting filler, I will do it on the whole panel as I'm a beginner so chances I've made quite a few errors. In that photo, I think that was a low spot, I just for example said to pretend it's flat but I will put filler + guide coat after to assess where I'm at. Yep with that picture, the panel is wet as it rained when I took the photo. But all those scratches are completely smooth, I went over it with 240 grit and can't feel it, even with my nail digging into it. I was legit thinking to buy a 2k can and spray primer to see how it turns out but then thought to myself it's going to be a mess doing it haha. Good mention there. Thanks for all that info I think I know what to do next.
    • Prior to laying down the primer, you need to make sure the surface is completely level. For example, based on this picture, I strongly suspect that the areas marked in blue are higher then the area marked in green.  If you spray primer over this entire area, then paint and clear it, the finished result will 100% show the low area. It will stick out like dogs balls. Unfortunately the paint won't magically level out the low areas as you lay it down.  Without seeing it in person, I expect that the green area will need to be filled, then use a guide coat and check that the entire repair area is level with a large sanding block.  With this picture, are you saying that even though you can see the scratches, the panel is in fact completely smooth and flat? If this is the case sure you could prep and paint it as it is.     The picture with the paint you described as blistering, it's hard for me to comment on from the photo alone. It looks like the panel is wet? Dunno, looks strange. Does the panel feel as smooth as glass when you run your hand over it? **** Going back to your question again, generally you would only sand the primer if you made a mistake while laying down the primer.  If the panel is prepped properly and you lay the primer down properly, you should not need to sand the primer.  This wouldn't work - Don't prep the panel. Spray primer and see how it turns out. Sand the areas where the issues appear. Spray more primer and see how it turns out. Sand the areas....... Yeah you'd go round and round in circles getting no where. 
×
×
  • Create New...