Apexi Safc

[LedZepLen]

I'm looking at solutions to my problem of getting my rb20det running right at arround mid to high 300hp next year when i install a new plenum, top mount turbo setup with a turbonetic turbo and GTR 444cc injectors, fuel pump and SARD regulator with my own fabed turbo to catback exaust.

I'm really interested in how simple the Apexi SAFC looks to be and i'm curious if this would be good enough to tune my engine to run a safe air fuel with 444cc injectors and 14-18psi boost. This would only be what i'd use for next summer and i'm gonna do a full build up with probably a greddy E-manage ultimate or a stand alone computer. This year all i want is a safe air fuel with the setup i want because this year i'm getting all the right bolt ons and want them plumbed and capable of 700hp (with a larger fuel pump then the GTR one i'll use next year) when my engine gets built enough to use the full potential of the Turbonetic turbo.

I'm gonna run it at 8psi off the bat and work my way up till i know how to use the unit enough to confidently turn up the wick to 330hp-380hp (no i dont respect the internals).

Any knowageable help would be aprreciated.

[The Mafia]

Nope, they just don't have enough features or ability to do the job.

Here is what I would do.

1. Two ECU options:

a. GTR Powerfc, and Harness. Probably about $1400, and fully tunable by you or lots of tuners.

b. Remapped RB20 ECU - not many options in regards to tuners, but they apparently do quite a good job.

2. Forget about the Fuel pressure regulator. Standard GTR injectors at standard rail pressure will scratch 400rwhp. (75% sure on that one, if not 400rwhp, then pretty damn close)

3. I think the Standard Plenum should do the trick, I know the RB25's support heaps of power (500hp) not sure on the RB20

4. The RB20 will laugh at 18psi. (AS long as its not f**ked already). Put 20psi into her

5. Go and find yourself a 3.0l bottom end, and hopefully one day you'll trip over a RB25DE head..

Edited October 22, 2007 by The Mafia

[aquariuz6]

Sorry to jack your thread.

Mafia your saying to throw 20psi on his rb20 engine.

If it was a healthy engine will it cope with it? And for how long?

How much boost can you put into a stock rb25 engine safely that is?

[The Mafia]

Sorry to jack your thread.

Mafia your saying to throw 20psi on his rb20 engine.

If it was a healthy engine will it cope with it? And for how long?

How much boost can you put into a stock rb25 engine safely that is?

well, I've seen RB20's handle 18psi ok (after market turbo of course) I'm running 18psi - 20psi with water methanol injection.

RB25 should take 18psi easy as long as its not pinging. There are people here that have them turned up to 21psi, but I don't know how they went.

[LedZepLen]

Now i'm thinin 18-22psi (22psi as a second boost setting that works in conjunction to a water/metholinjection system). So if the Apexi unit is out of the question then is their any problems with using a Greddy Emanage Ultimate unit with the Profec e01 boost controller i'm ordering. I figure the Profec unit should beable to go really nicely into the spot where the ash try sits and as a data logger and programmer tthe Emaage unit it would be a really sharp setup.

Will i beable to even start my car once i've got GTR injectors, a supporting fuel pump and regulator with all new turbo setup or will my computer say "no way"? And once it's started would it be fairly straight forward for me to tune the wir fuel good enough to bring it somewhere? I'd probably need it to be driveable even if it's running way to rich as a respectable tuning shop is no less then 8-10 hours drive away and i dont even know of one off hand. I'm sure i could tune it half descent if i could get it running.

[_Ryan_]

Profec only talks/displays with the Emanage blue, not the Ultimate... can still use it as a standalone EBC tho.

-Ryan

[QWK32]

emanage is the better option by far. with the gtr injectors your car will start and run as long as you install the resistor pack along with the injectors. if you get the emanage make sure you get a support tool (computer software and cable) aswell.

i don't know about the EMU but on my emanage blue when i install new injectors, i can go into the settings and tell the emanage that my old injectors where 270cc (rb20det standard inj) and the new ones are 444cc (gtr inj) it does the correction itself.

[DECIM8]

Just on the topic .. my mate is running 20 psi through what we think is a stock turbo (could be high flowed but it came from japan like that, so we think its stock) its been running issue free for a good 1.5 years ..

However some turbos can do it some cant I guess.

To clarify its a rb20 gtst

Edited October 24, 2007 by DECIM8

[LedZepLen]

emanage is the better option by far. with the gtr injectors your car will start and run as long as you install the resistor pack along with the injectors. if you get the emanage make sure you get a support tool (computer software and cable) aswell.

i don't know about the EMU but on my emanage blue when i install new injectors, i can go into the settings and tell the emanage that my old injectors where 270cc (rb20det standard inj) and the new ones are 444cc (gtr inj) it does the correction itself.

haha thats the best news i've heard all year. Thank you very much, my biggest headache has now been cured. Now i can confidently order in parts knowing i wont have the pritiest GTS-T inside and outside the engine compartment and it wont be as a garage show peice. Strangely enough, hearing about the e-manage self correcting for injector size (rough tune i soppose but good enough to workoff) is the same day i got offered a better job at work.

Greddy E-Manage Blue and Profec e01 boost controller allong with a new battery for my lap top are gonna be on their way in the next month or so. But i have till late April to early May to get it ready and a little more after till the roads are cleared.