Injectors? Halp?

[Ghettopoptart]

Okay, to dive right into it, I searched all around to find my correct answer, lots of folks got dangerously close to it, but none addressed my specific question.
For an Sr20 to upgrade the injectors and make them run........

I know that the STi Injectors from the bug eye will work, the 560ccs.
And I am almost certain, supra injectors (440's and such) will work, and possibly evo ones.
And i'd have to go top feed rail for sure and get the connectors to go on them

Which ones cross over for sure, also

What do I use to tune the ECU with? I keep hearing haltec piggybacks are 400, they work fine, E-manage blue works, and even an AFC Neo would do it.

Essentially. What it boils down to, is i have upgraded from the stock T25, to a GT28RS, and the factory wastegate is set at 14lbs. i am worried ill max out my injectors before the car runs to its potential at 14 lbs. How would i go by ensuring the car wont max them out at 14, if that.

Also, side question! Will my head gasket give under such abuse?

thanks much -Paul

[compactfean]

with my experience no, your headgasket will not blow. Im running 14 lbs on my ser which is 9.5-1 CR. Yes you can get, haltec, nistune, e-manage blue or ultimate, Apexi power fc, Apexi safc. But its not as simple as just plugging in some software and taking off in your car. You will have to tune it, which to do correctly takes pretty much all day. You cam use whatever injectors you want but without a good tune will run like s***. Your other options are e-prom tuned ECUs from E-mance, enthalpy, or jwt.

[Ghettopoptart]

Well , not to be rude, but you didn't exactly answer any question. Its no secret that without a tune, the car will not perform to its maximum capacity.

Still looking for those answers.

[SX APPEAL]

You might not have found this because its in the KA-T section, I doubt they link to it in the SR section, but KA and SR injectors are interchangeable so the info should still be valid for you:

injector-spread-sheet-t109492.html

[compactfean]

Im not sure what your asking then. If your building a car on a budget than get what ever injectors you want from another kind of car. If there high impedance inj. Get resistors. If they are top feed than get a top feed rail. 550cc or even 440cc will work just fine and whatever tuning software you choose will tell you the duty cycle of inj. I would be more worried about maxing out the stock maf.. as far as direct drop in injectors, nismo/tomei makes direct drop in side feeds.

[Ghettopoptart]

That right there, is pretty much what I was looking for, as far as injectors go.

I just now need to know what tuning software to use, or which is easiest to fool with.

[compactfean]

Cool I kinda figured out what you were saying. As for tuning software I see alot of problems with aem reading the disc in the cas correctly. Emu is what I have and has easy principles but can be a pain sometimes saving data in the piggy back( I learned to save before importing/ reporting data) and has really great features. I've heard no complaints with callum and nistune. The Apexi is good too but has limits. What I would do is check out each program and see which one seems easiest to you. Most of them you can download there software free and play with. I would stay away from the safc because you cannot adjust timing.

[240man91]

for tune i would go rom no better way in my .02 i looked. an the stock maf i dont think will take that much air an read it right with out maxing it out i am just running 10psi an went with a z32 maf u can get one with a pig tail for a 100 off ebay well worth it. idk its your bulit do what you want with it but rom tune will not make your head hurt an u dont have to install all the wiring, an they are plug an play. way more fun lol

[Ghettopoptart]

You guys have been very helpful, along with the search function :P

As far as tuning software goes, would it be possible for you guys to link me pages to this stuff? and how to get it?

I googled things like calum and others but, its all greek speak to me. And i am having a good bit of trouble finding out places to buy this stuff.

[compactfean]

For Google use these words. Calumsult, greddy e-manage ultimate, Apexi power fc, aem ecu sr20det. And for e-prom tune setups there is enthalpy, jimwolftechnology.com, and E-mance.

[PyR0NiAk]

Try searching through the Tuning Forum.

[s14brennen]

I've had a gt28rs for a little while now with stock injectors and head gasket. Mine was steady boosting at 16lbs or so till I believe my actuator took a dump. Now it just spikes but it was hitting upwards of 20lbs and nothing gave but it did hall a**!

[Ghettopoptart]

Hah, well here's to hoping. I await my CS sports oil lines and i'll be on the road again.

[rc1honda]

Im not sure what your asking then. If your building a car on a budget than get what ever injectors you want from another kind of car. If there high impedance inj. Get resistors.

This information is incorrect. Stock SR's use high impedance side feed injectors. You will only need resistors when running low impedance injectors.

Also it's not as easy a buying a top feed rail and then installing top feed injectors. You have to make sure the injectors will fit the rail. You have to buy the correct O-rings as well.

As far as interchangeable injectors from other cars I really don't know.
What you need to know is:
1 if the injectors are top or side feed
2 the size of the injector port to fit the rail. Most rails are 9-12mm
3 If the are high or low impedance, low impedance are commonly called "Peak and Hold" injectors. High impedance are commonly called "Saturated" injectors.
4 You will need to know tuning options for your car. Search or ask a specific question and i could go into further detail on this