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View Full Version : advice on parts about to be installed on my 99lgt



Svenerachi
03-17-2007, 08:58 AM
ok, so from reading past posts and all i can tell that the general concensus is to stay away from nitrous.

Is it the fact that subaru engines do not react well to nitrous without significant modification?

let me explain my situation. I just gota great deal ona zex dry kit. I've got a 99 legacy 2.5gt 4eat. I'm looking to buy a new turbo legacy at the end of the year and want to spend as little bit of money to get a little bit more oomph from the leggy for the meantime just so i can spank on the hondas a little bit.

now i'm only planning on running a 25-35 shot, my question is what other supporting mods do i need to look into before i install the nitrous kit. if you're not familiar with the zex kit, it has all of the components contained in a little "brain" that measures the fuel pressure and automatically will cut off the flow of nitrous if the "brain" detects a lean condition before any damage has a chance to occur. atleast thats what the website told me.

to start with the obvious:
1) upgraded fuel pump
2) upgraded injectors
3) air/fuel guage

optional stuff:
1) fuel rails
2) electronic management
3) dry to wet conversion kit

the extras that have been needing to get installed:
1) Agency lightweight Power Pulley
2) OBX equal length headers


so. any comments or advice? anybody actually run nitrous that is still active on the forums? i've tried getting in touch with reddevil and others that have experience, but haven't gotten any responces... so any help or advice is greatly appreciated.

and hey, if you wanna flame me, have at it. judge not lest ye be judged.
(thanks Kevin Smith........oh, and God)

Huffer
03-17-2007, 10:28 AM
I'd do it - you won't need a new fuel pump if you're only planning a mild "boost" - Subaru's need a little leaning out anyway, they run rich in stock maps.

The A/F gauge won't do much without a wideband O2 sensor though. The stock sensor doesn't read fast enough or wide enough.

Personally though, this could get into the thousands (and potential engine damage), and I think that money would be better spent paying for the new vehicle.

Svenerachi
03-17-2007, 12:18 PM
yeah but i need fun now. i've had this car for 4 years with it being totally stock aside froma K&N filter, and about 3 months ago i decided to de-snorkle it

i've already bought the nitrous kit, its sitting here next to me taunting me to hook it up today, but I'm worried about my noobiness causing serious issues

you say i don't need a new fuel pump? i've got 150K miles on it.... i was thinking if i'm going to replace it due to it being old as dino shit, may as well replace it with something better. am I wrong here, i don't know anything about fuel pumps.

so what would you guys suggest as far as fuel injector size?

fuel rails are a dream, unless i find them CHEAP, its not going to happen.

and as far as EM, i was thinking of having someone to local do an opensource custom map that would replace the WOT map. unless the oem ecu is able to compensate..

thanks huffer +1