Hi Guys,

Newish to the site, looking at maybe buying a scooby, ive found a 2005 WRX which i like the look of, i think its standard (is it 260bhp?) but would like around 400bhp... whats needed to get this and make it reliable, it will be a road/track car so want it to be as reliable as possible....

also, due to transmission losses, what sort of power would that be at the wheels having 400atf?

also what sort of torque figures would it be with 400bhp?

 

A standard wrx is 225 I think, would be better to save a few more penny's and get a sti as the money it would take to get a wrx to a reliable 400bhp would be savage, plus engine and box would be on borrowed time!!

Harri.

 

welcome, a commonly asked question.

the car you are looking at WRX will require extensive money spent on it to be a reliable 400bhp. it will require a new turbo, injectors, air filter, recommended to upgrade intercooler, remapping, full exhaust with sports cat or decat and preferably ported headers or tubular headers for best gains.

then you have the weakest link which will be your gearbox, brakes and then the clutch which might not hold up too long at that power.

most people will tell you its false economy and you are better to start with buying an STI to begin with, this comes with a stronger engine, 6 speed stronger box, brembo brakes as standard.

entirely upto you but it is also alot cheaper to get to around the 350/360bhp mark with standard parts on a newage sti.

 

400 in a wrx is not the said thing I don't think the transmission would cope nor would the engine

Get an sti as a base 04 on the engine and trans are very strong 500+ has been had out of the standard 2.0 your on the edge then at that power so 450 would be ample I'm a great believer 400/400 is the perfect road car i won't talk about track as I'm not clued up on it

For 400+

Turbo md/sc/lm
Intake pipe
Induction kit
Fuel pump
Injectors
Maybe a meths map for cheap poke
Remap
If you want better ecu control then syvecs is the in ecu

 

cheers guys, so sounds like an STI is the way foward....

another question, i want pops and bangs from it lol so a decat will be put on, but i also have a softsport for antilag lol i know with the Evo8's this can be simply turned on in the standard ECU, is it the same with the STI or would i need a new ECU to allow this?

and what sort of price would i be looking for an average milage/condition STI? blobeye?

 

You can map the standard ECU to pop and bang on over-run,, but for antilag and more your going to need something like a simtec ECU mate...............

 

I thought AL was available through OS on that year?

 

As above STi will be better choice just due 6 speed,engine will hold the power as long is good treated,Brembo brakes etc.

Yes you can have pops and bangs on OE ECU,you can have ALS/LC too and switcheable maps etc


Jura

 

Ok,

So as some may have seen i ended up buying a 1999 impreza Sti Type R... its currently standard bar forged pistons and some handling mods....

Ive bought a FMIC, but what else do i need and what sort of costs am i looking at to get it running a safe and reliable 400bhp?

Im guessing:

Turbo back exhaust with decat
induction kit / air filter
remap
FMIC - already have this waiting to be fitted

so what else is needed and what costs are involved?

Cheers,
Ash

 

to get a standered type r to a reliable 400bhp will cost the same as the 05 wrx you were looking at first.

 

yeah i dont mind the costs, just wanna know roughly what im looking at so i can budget accordingly....

 

Turbo,injectors,fuel pump,fpr,induction kit air filter,remap,uprated clutch,6 speed as 5 speed box will be on borrowed time uprated brakes,suspension mods etc......

 

Cost if brand new a lot but keep your eyes in the second hand parts for sale on here or any reputable Subaru site 22b bulletin etc....

 

cheers buddy, as said dont mind about cost as it will be done overtime... most bits i will tyr to buy brand new just for peice of mind though....

 

Yeah that's the way slow and steady as my wife keeps on telling meMaybe start a projects thread we love them on here gives people a chance to see what other members are doing with there cars.mods,parts,cost,bhp gain,etc...get some pics up when you can.

 

Don't chase figures mate as it becomes very costly and as many on here will agree the end result can sometimes be very disappointing.

The type R on standard box and engine can handle 360-370 which makes for very capable car especially as these cars are so light.


It will cost you more money getting a healthy 400bhp than what you actually paid for the car

 

cheers guys, so say i was to go the other route and drop a newage lump in it, firstly do they just bolt in? and secondly whats needed all together? engine, box, loom, ECU do the diffs and shafts all still fit?

 

The fact that your car has had a rebuild with forged pistons I personally would use that existing engine as a base as it has had the main core part of the engine strengthened,and work up from that you could buy a second hand sti engine and put it in and it last for five minutes at least with your car you know who has done the build so it should be primed for more power.

 

But yes the engines are easily transferable between the various models classic through to newages.

 

You cant just drop a new age lump in unless its just the bottom end, and then you take the roll of the dice to see if its a good bottom end or not (they can go pop and most of those lumps are going to be 100k+ so you are better with a full rebuild).
But thats only about 25% of what needs doing.
You will need a bigger turbo, one with less lag will cost you more money as they are hard to get 2nd hand, so 1400 quid out of your pocket.
You will need:-
Bigger injectors
Exhaust
Aftermarket ECU and mapping
FMIC
Induction kit
Bigger brakes
Better clutch and gearbox
Gauges (not a must but highly recommended on a modified car)
Check your insurance for the BIG increase you will be paying.

Basically if you do this properly you are looking at the good end of 10k (hence why most just buy a new age STI).

Tony

 

Not exactly true unless you mean the bottom end of the engine (short engine)?
New age STI's have AVCS to start with, first problem encountered....

Tony

 

Also OP, why the hell do you need 400bhp?
There is no real need for it on the road (you cant use it properly anyway).

 

because its a figure i wanted to aim for in both my old cars and never made it due to expensive parts lol bits for the scoob are soo much cheaper! plus it should be a bit of a weapon on track with 400... tbh, like i say its pritty much standard at the mo but already gettign bored of the power lol

 

Thats what I meant I know you need a different ecu to run avcs heads and so on.

 

If that's the power you want mate go for it,I know what Tony is trying to say though and he's right about usable street power,but if as you say you are going to be doing track days power and torque is a must I'm in the process of getting my parts for a massive power build at the moment as well so I know where your coming from.

 

Not to mention the wiring, LOL........

Mine runs 400/400 or so.
It's VERY driveable, will hold it's own with EASE on a motorway without ever going near boost, and returns better fuel consumption than when it was 300 bhp if driven reasonably.
It can be driven round town easily and is docile until you want it not to be.

 

I know a car with power can be drivable around town I'm already over 400 bhp now,but that kind of power is more able to get you into trouble or out of it a bit to easy depending how heavy your right foot is.

 

How about tuning your existing type r to 350, I think you'll be surprised how much fun they can be at that level with the short gearing.

Then concentrate on handling.

95% of the time a 350hp car can actually be quicker in real driving situations compared to say a 450hp car will be due to the inevitable inertia of the larger turbos.

 

TBH, i will probably mod this one till i blow it up and once its gone bang stick a newage in it lol