joshnosh

iTrader: (1)

got some small mods planned for my 04 wrx

could someone tell me the bhp gain from a remap on a totaly stock car and then the bhp gain for each mod in the list

remap
aftermarket headers and decat up pipe (unequal length)
decat exhaust
port and polish TGV valves
silicon intake, y pipe and uprated inter cooler with fans


any other mod ideas would be apreceated
would be nice to break the 300 mark

joshnosh

iTrader: (1)

the car already has a prodrive backbox and green pannle filtter

Dan wrx

iTrader: (2)

Them mods will see you to about 270-280 I think mate, turbo would probably be maxed out if it's a td04 turbo, you would probably need td05 of vf34 or similar, pink sti injectors 255l fuel pump 3 port and decent panel filter.

joshnosh

iTrader: (1)

whats a td05 or vf34 like to drive? do they still spool up quickly

Dan wrx

iTrader: (2)

Not 100% sure mate as people say different things! I've got a td05 waiting to go on mine, from what I can gather the td05 is better for top end as the vf34 spools up slightly quicker but then dies of in the higher revs, I'm sure someone will be along to correct me if I'm wrong, try searching the forum for the differences mate, there's 1000s of different threads about these turbos

Tidgy

depends which td05 version it is, theres 16g, 18g, 20g

joshnosh

iTrader: (1)

fair enough
i dont want to lose the short spooling. the td04 dose seem to run out off puff at 5k though

Tidgy

yeah it will, sc32 would be a good option, will crack the 300 and spool like a stabbed rat lol

scoobyboy1

iTrader: (16)

VF34 will spool up quick, TD05 is a old turbo now you will make the numbers with this turbo but I find them a bit laggy for my liking!!

Also depends how much you want to spend?? as Tidgy said a SC32 would be a really good turbo, but new there over a £1k, used there about £700-800, where as a VF34 will probably set you back £350-400

Comboflip

Best turbo would be vf 43 -48 generally these will be lower mileage than used vf35.brand new then sc turbos and afp turbos

scoobyboy1

iTrader: (16)

Heard the vf43-48 can be laggy on a 2 litre, there great on the 2,5 litre though!!

Best to look at some rolling road graphs and see when the turbo's make full boost, before you make your mind up, Dont just buy a turbo because it says it can make 400bhp, because its no good if you got a power band of 5000rpm-7500rpm!!

Tidgy

vf43 on a 2.0 lmao, epic fail

Comboflip

I would of thought that the vf43 and 48 would perform ok on 2litres but on the 2.5litres they perform even better .abit like a 20g on a 2l good but obviously even better on 2.5l

Mustoe91

iTrader: (2)

I've gone down the Andy Forrest hybrid TD04 route getting fitted and mapped in 2 weeks with Sti tmic, 650cc injectors, Sti manifold, Sti up pipe, induction kit, already got a hrc fuel pump and 3port boost solenoid, hoping to see over the 300mark maybe a route for you to consider ?

Full boost at 2500rpm to

Sam