Do the injectors now?

[boon]

Right, so I've taken the plunge and gone for a Link G4. It's going in this weekend and tuning etc. happening next week.

Now my question is, should I replace the injectors now, or are pinks not going to hold me back?

Setup as follows:

V7 STI

VF34

3" Downpipe

Tuned headers

Process West cold air intake

AVO silicon intake

Process West TMIC

Aeromotive Stealth in-tank pump

Link G4 plug-in

Basically what I'm wondering is given the potential output of the Turbo, and the safe power limits of the block, and the supporting mods I have, are the injectors going to hold me back when getting it tuned, or will the VF34 run out of puff first?

[funkytown]

Imo pinks will be fine but nearish their limits of the vf34 which should peak first. I wouldnt do them now

[Pappu1]

As above

Pinks will max the vf34 so no need to swap

[Wiretap]

Pinks are 565cc, so are decently sized, I don't anticipate you running out of fuelling before your turbo well and truly leaves its peak efficiency, as everyone else is saying

[Stoffa]

With that pump if you have an adjustable FPR you could just wind the fuel pressure up for enough head room.

Ive got a mate running a v7 sti and injectors ran out at 238kw at the wheels on STM dyno so, which should be about the limit of you vf34, so an extra 10-15 psi base pressure should make sure the turbo max's out before the injectors

[Wiretap]

 Stoffa said:

With that pump if you have an adjustable FPR you could just wind the fuel pressure up for enough head room.

Ive got a mate running a v7 sti and injectors ran out at 238kw at the wheels on STM dyno so, which should be about the limit of you vf34, so an extra 10-15 psi base pressure should make sure the turbo max's out before the injectors

This will also increase injector latency which will have to be taken into account (tuning latency is a friggen pig)

[johnny5]

Did ya have to go G4 since the standard ECU can be reflashed? but as everyone said pinks will do for your said purpose right now

[Wiretap]

 johnny5 said:

Did ya have to go G4 since the standard ECU can be reflashed? but as everyone said pinks will do for your said purpose right now

Got your standard ECU somewhere? I'll take it off your hands

[sultan]

i'd change them, i prefer a piece of mind over a few hundred dollars. especially as you'll want to run it a bit richer to compensate for the higher intake temps from your top mount

[boon]

 johnny5 said:

Did ya have to go G4 since the standard ECU can be reflashed? but as everyone said pinks will do for your said purpose right now

Well a reflash is $1295 and I don't have a boost controller so adding a respectable EBC would have been at least an extra few hundred dollars... it wasn't really that much more to go to a Link and the big difference is that touch-up tunes on a Link are cheap, re-re-flashing isn't. Plus closed-loop boost control is meant to be the shiznits, I feel much more comfortable having boost controlled by something that at least knows all the other factors such as IAT, knock and ECT.

[Wiretap]

 boon']

[quote name='johnny5 said:

Did ya have to go G4 since the standard ECU can be reflashed? but as everyone said pinks will do for your said purpose right now

/quote]

Well a reflash is $1295 and I don't have a boost controller so adding a respectable EBC would have been at least an extra few hundred dollars... it wasn't really that much more to go to a Link and the big difference is that touch-up tunes on a Link are cheap, re-re-flashing isn't. Plus closed-loop boost control is meant to be the shiznits, I feel much more comfortable having boost controlled by something that at least knows all the other factors such as IAT, knock and ECT.

Your factory ECU runs closed loop boost control that is at least as sophisticated as the Link. touchup tunes on an open-source (who the sh!t is charging you ECUTek prices for something they don't actually have to pay for???) reflash should cost the same or less than a Link tune as the Link is pretty dumb when it comes to learning (and man you should see how easy it is to make their sh!tty software throw errors turning on features!).

In any case, sell me your factory ECU since you won't be needing it anymore (all ECUs are used for open-source research purposes and no profit is made from them)

[johnny5]

hit pappu up think he may have some ecu's laying round, yea think my standard boost solenoid could hit the boost up faster than the hks ebc I'm using now