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VF8, STI injectors, WRX I/C...Do I need Engine Management?

Posted: Thu May 10, 2012 7:26 pm
by batlegacy
Hey guys,

Recently acquired a vf8, wrx tmic, 565cc injectors, and already have a 3 inch catless turbo exhaust. Do I need to install any type of engine management for these parts or am I still ok with the stock turbo ecu?

All this is going in a 1994 Aspen White Legacy Turbo 5spd Sedan...131xxx original miles, bone stock (except for exhaust) and it is a very clean engine, never given me any issues...

Thanks guys,

BatLegacy

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Thu May 10, 2012 7:45 pm
by PhyrraM
The injector are to big for the stock ECU to handle.

The largest know to work reasonably well are the 440cc 'grey tops'.

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Thu May 10, 2012 11:40 pm
by CAV3MAN227
^ Great info, I was wondering about the injectors!

-Joe

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Fri May 11, 2012 1:04 am
by batlegacy
ok thanks phyrram...so injectors aside are the other upgrades ok?

Thanks,
BatLegacy

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Fri May 11, 2012 1:16 am
by PhyrraM
The other upgrades are cool with the stock ECU. Watch out for boost cut, the VF8 might hit it around 16-18 PSI. Search for "FCD" (fuel cut defender)

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Fri May 11, 2012 1:19 am
by CAV3MAN227
Turbo xs sells them too and there real easy to set up.

Joe

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Fri May 11, 2012 5:28 am
by batlegacy
Ok thanks guys!!! Upgrading the engine is easy to me lol...its engine management where I am at a loss haha...

Re: VF8, STI injectors, WRX I/C...Do I need Engine Managemen

Posted: Fri May 11, 2012 5:54 am
by CAV3MAN227
-Piggy-backs work, but stand-a-lone is the way to go. From what I hear, Rob's tune is a good bang for buck too!

-Joe