Gents,

Quick query which is doubtless covered but the search doesnt work too well for me, oddly.

Ok so I have a 2003 WRX with PPP which will have X turbo?

What options do I have for upgrading, I want to ultimately increase torque and bhp to about 350 and, well 300+ lbs/ft but I dont want a million tons of lag.

I have seen VF34, VF35, TD04, TD05 all bandied about but I dont know the pros and cons of each...

Ideally I would like to only upgrade the fuel pump, injectors, exhaust, mapping, breathing etc - ideally not engine internals!!

Help me out (again) and I will be very grateful!

Cheers
Matt

 

You have TD04, which although not the most powerful turbo, does provide great spool and responsiveness.

How big's yer piggy bank mate ?

 

For the 300+ bhp and lbs/ft I could go to, 4k. I've asked before about Tuning Packages and there are like, 7 companies offering the same deal...

VF34
Dpipe
Exhaust
Ecutek
Fuel Pump
Injectors

Some little differences, all around £4000 - £5000

I wondered if there was an alternative that was either, cheaper and similar, or more expensive but significantly better...

I think for the price I am willing to pay I will be needing some confirmation of work, ie a Warranty or certainly a recognised collection of mods that a few people have done before.

Matt

 

Well, good news, you'll be able to get it done for half that !

If you have PPP you should have the sportscat downpipe, AFAIK.

VF35 is a popular choice here for those looking for near enough 350bhp (a bit less, to be fair). By all accounts it's an excellent all rounder. The TD04 Hybrid is popular for those just looking to get over the 300bhp, cos it's ultra responive & low spooling. TD05 16G good power, but maybe a little more lag than the other two.

HTH - it's late !

 

The VF34 with the supporting mods you mentioned is what I would be looking for and a conservative sports tune if you're not contemplating internals...want more then start with at least a 207 block.

 

G'day cobber !

 

ive put a vf35 on mine with pink injectors and full decat including the up pipe and ive got 324bhp, but my vf has only lasted about 7000miles so now im looking at the andy forest td05 18 or 20g, the vf is a good unit but if i was u, i would go for a td05 16g it keeps a early spool and will give u a good power figure with a bit more realiability

 

And you mate trying to get my head around the different jargon WTF is a PPP? (I was thinking point to point protocol)

 

PPP prodrive performance pack

basicly, sports cats and a remap from subaru to increase performance

 

Sports cat is not included in the PPP for the WRX, only the STi....

350bhp (with the mentioned mods) will possible depending on which RR you are using, ie some read high, some break your heart.

I would throw an STi TMIC, possibly headers and an EBC such as the Apexi into the mix for the goal you are aiming for.

As other's have said, you could probably do that little lot for circa 2k if you bought the parts wisely.

 

Taken from the Andy Forrest site...

Level 3 360-390 bhp

Full Decat turbo back 3” bore exhaust system
Tubular exhaust headers and flow matched uppipe
Walbro 255 l/hr uprated fuel pump
K+N panel filter
EcuTek custom ECU calibration.
Twin boost set up for high/low power switchable in-car
550cc Multi Spray Injectors
Fuel Lab turbo specification fuel pressure regulator with fitting kit & gauge
STI TMIC from 01-06 STI including undertray
AFP 05-20G custom ported turbocharger modified to fit with TGV
NGK PFR 7B uprated spark plugs.

Now then, if I went for an 05-18g instead of a 20g (I dont want that much power or to overstress the gearbox and engine so the 20g is not neccesary)

EDIT - I would also want a sports cat and not a decat, which will probablycost a bob or two more I guess...

What do you guys think? I'm guessing Andy is quite dear, even though he certainly appears to be very highly rated!!

Matt

 

I got 353 bhp with a 20g on a 2003 uk wrx.

* gt spec-ii headers (incl up-pipe)
* ppp sports cat downpipe (btw, the PPP for the WRX does not include this, so you need to procure a sports cat (or go de-cat))
* decat centre cat, 2.5" centre section, ppp backbox
* autobahn88 fmic + apexi intake (needed for the fmic, unfortunately)
* ecutek3 remap
* walbro fuelpump and sti pink injectors (505cc/min)

It set me back about 3000 quid including the remap, but I did all the mechanical work myself.

The map is not a bleeding edge map, as I don't have gauges etc in my car so you could potentially push it a bit further (might need a 3-port boost solenoid).

If I got to do it all again I'd change the FMIC for a top mount, change the apexi intake for a panel filter and get larger injectors.


Edit: just did a fresh calculation, and it looks as if it cost 3540 with the parts above (injectors, sports cat, decat centre, ppp back box were all 2nd hand)

 

Also, if you're going for higher power, in my experience you need to budget for a clutch-replacement (i'm saving up as we speak)

 

Thanks chaps, £4k could be the budget, but it would need to include labour!!

I am assuming that an STI TMIC would be cheaper and almost as good if I dont mind losing out on those last few ponies so I guess I can save there?

As my car has 48k miles I reckon a clutch is on the cards soonish anyway!

Matt

 

If I was on a budget (which I was originally, before major feature creep set in), I'd do the following:

decat up pipe - 50 quid'ish used
decat down pipe - 100 something (possibly cheaper used)
decat centre pipe (e.g. the ppp section you have already) - nil
different back box (the ppp box which you have already) - nil
fuelpump - 85 quid
panel filter - 40'ish (?)
td04 hybrid from andy - 470 incl vat (?)
sti top mount - 250'ish? although to be honest, I'm not sure if this is needed at the level the td04h produces.
ecutek remap - 650

I personally don't like the idea of buying a used turbo (e.g. a vf34/35), although it may be perfectly reasonable to do so (and it would net more power)

The above comes up to about 1645 leaving plenty of change for labour to fit and a clutch change Should net you over 300bhp/300ftlbs. Alternatively, go for a used vf34-35 turbo or td05 for more shove in the back but also a bit more lag and later spool.

A car with the mods above would be more driveable than my setup, and would probably **** all over it on anything except a straight motorway / drag strip. In fact, buy my set-up and I'll get the list above instead

The above are just my own opinions, of course, and I'm not a mechanic so there's every possibility that I'm wrong

 

vf34 are rare as rocking horse poo, when i wanted one could find one for love nore money and ended up going for a new one

 

It's weird, isn't it... when I was speccing up the mods, there were loads of them about (was originally gonna go for one), and then when I was about to buy one, they all disappeared off ebay!

The same thing happened with the STI intercoolers, which is why I ended up with a front mount

 

lol, i wanted to go front mount route.

the turbo i was origionaly gonne use (second hand vf30 off here) turned out to have a cracked houseing. was booked in and set for all the work to be done, front monunt, autronics, fuel pump, induction kit etc and then suddenly no turbo, looked for other on here and nothing doing except a couple that were way bigger than i wanted gt30 etc, so ended up going new vf34

 

 

Nice mods list

Do you know roughly how much power your car is making?

 

Sorry to crash the thread but I am looking at doing something similar in the new year(ish).

I plan on adding a TD05 16g or 18g turbo with injectors to the mods already listed.
Do the standard internals handle that sort of power? I do about 10K miles a year.
I appreciate the clutch will take a beating but what about the gear box?

Cheers
Dan

 

i also got wrx 54 plate with ppp so what does it include???? i know they have remap and back box and i can see a blue pipe in the engine bay??? is that it for a wrx?????

 

An 18G is more than capable for destroying a WRX gearbox, even a VF34/VF28 is capable of breaking a 5 speed box.

330ish bhp can be done cheaper than £4K:

decat up pipe - About £60
decat down pipe - About £150-£200 new (less for used)
3" Exhaust system - About £450 (less for used)
fuelpump - £85
filter - £40
VF34/Vf35 used - £400
Sti Top Mount or FMIC - About £300
Labour for fitting - £500ish
Tek3 remap - £650

Total - under £2700, just over £3000 if u buy the turbo new.

BTW i will have a VF34 for sale in about 2 months that has done less then 10K miles, will be looking for £400.

 

301bhp on Dastek's RR, which is one of the more conservative ones (or perhaps I should say more realistic).

Doesn't sound much, but it's pretty quick nontheless and you get those razor sharp responses & ultra low spool. Perfect for me as I do a fair bit of town driving with the odd bit of B road.

 

i got a vf34 that needs a good home, check out the for sale section

 

Matt, I have just removed my 351/350 set-up from my own 03 WRX. It consisted of;

Walboro 255 fuel pump
APS FMIC (Not neccessary as an STi TMIC will suffice at this level) (prov sold)
650cc (yellow) injectors (STi pinks will do you)
GGR induction kit (prov sold)
3" Turbo back exhaust system (available if your interested)
VF34 turbo(prov sold)
Remap at the Racing line in West Yorkshire.

 

PM's sent where applicable.

L33, Dean,

Bit soon for me to be looking but if either is still for sale early next year I will take a look!!

Matt

 

if its a goodun bite his hand off lol

 

I see what your al saying, but im just not sure if a VF34 will be enough in the long run which is why I am considering the TD05 Hybrid options.

Matt

 

how far are you planning to go? what are your eventual goals?