saphcos

Is there a lot of difference performance wise? A 95 WRX looks to be 260bhp as opposed to 280 for the Sti so is the difference that noticeable?

Also, how easy is it to get a WRX up to 300bhp?

The main reason I'm asking is it seems much cheaper to buy and also insure the WRX (even with mods).

Thanks

myblackwrx

iTrader: (1)

Which Car is a WRX STi

If you get a late model wrx you're nearly at 300bhp.
Getting an early wrx to a reliable 300 bhp would require uprating the fuelling system ,injectors, a better tmic or go for fmic and a remappable ecu (all imo)

WRX_Dazza

late uk wrx's are around 240 actually.

imports are 260-280 depending on exhaust / intake etc... and they all vary car to car.

sti's are built to deliver 280+ bhp all day long, but like all scoobies, require good servicing and looking after.

wrx imports run a TD05 Turbo, which delivers better performance out the box than a uk car, as a comparison.

my import WRX required new injectors / fuel pump / replacements ecu / front mount and extensive mapping to get where it is today, and i still have to go easy on the gearbox as thats the next weak point.

its all about what you want and basically 250bhp is more than enough for most people.

also you could do worse than hop along to your nearest scooby meet and chat to a few people.

rbaz

iTrader: (1)

Did they make a UK WRX??
Thought all WRX classics where JDM imports.

myblackwrx

iTrader: (1)

No such thing all classic UK imprezas are called Turbo 2000 (except any special editions) and run 208bhp up until about 1999 i think when they had 215bhp.

Not all wrxs run td05 as late model ones had VF turbos

stevie boy

thats right fella, there was no uk wrx.

the wrx saloons started off with 240, the MY95 got 260 and then the MY97 got 280

rbaz

iTrader: (1)

That’s what I thought

When I was looking for one I almost went for a WRX but was advised against it as the cost to get a WRX up to STI spec would be huge.
I went for a V3 STI its the face lift model, has more power, better brakes, better trim, suspension, quick rack etc etc
Am very happy with mine glad I didn't go for a WRX.

StickyMicky

no such thing as a classic uk wrx lol

Godden87

I thought the WRX's come with TD04 turbo's????

saphcos

I should have said I was talking about imports. So, with only 20bhp or so I didn't think the gap would be so big (if it is big).

How much is it going to cost to get a wrx up to 300bhp and will the gearbox be ok with that? Obviously it might just be easier to get an Sti in the first place but I'm curious and it's not like I do many track days etc

Thanks for the help so far.

saphcos

Anyone else?

myblackwrx

iTrader: (1)

Saloons had td05 and vf series depending on year ,wagons were a different matter.

Wurzel

iTrader: (1)

lies all lies I tell you !!!! Don't believe a word of it

I have nearly 400 in my classic and it is nowhere near enough

172sport

iTrader: (6)

No noticable differecnce from my experience, my 95WRX is equal to my mates 96STI Both have a 3" stainless exhaust.

Now around Cadwell mine is 5sec a lap quicker, but thats the driver

Your looking at £200 for 300bhp PolarPerformance

The STI has better cylinder heads and forged pistons other than cosmetics there pretty equal in real terms.

mr hat

iTrader: (2)

u will not get 300bhp in a wrx with a £200 chip. and the sti is far superior to the wrx in soooo many ways.

172sport

iTrader: (6)

Please elaberate, I'm interested to know.

saphcos

Me too (hence the questions)

172sport

iTrader: (6)

The detail changes are purely homologation changes to enable evolution of the rally cars of the time,

I agree forged pistons are better, I've no doubt the cams and heads have more bhp potential, but thats it whats potential if it isnt used?
There isnt much in it in the real world, Ive proven it many times on trackdays.

My wrx has all the bits I need tbh, its got the alloy bottom arms and a strong enough engine for 300bhp.
You change the A/Roll bars, Dampers, Brake calipers/pads/lines to aftermarket regardless of wrx/sti.

I feel I dont need the DCCD or a plated rear diff but both wrx/sti had them dependent on year anyway did they not?

rbaz

iTrader: (1)

DCCD was on the type r's and some RA's the plated diffs was an option I think.
If there isn't that much difference why do reputable tuners not recommend using a WRX bottom end on an STI management system?

I was under the impression if you drive both standard cars the differences can be felt easily. Does the STI not have more torque as well as power?
But have never driven a WRX so can't comment from driving experience.
Maybe someone that has had both can comment

172sport

iTrader: (6)

I've driven both,

AFAIK bottom ends the same (classic) just pistons differ because there better lightweight forged ones,
95wrx td05 and 0.85bar
96sti td05 and 1.1bar

Thats where the extra torque is from i reckon

Skoobie Dhu

iTrader: (3)

I've had my V3 STi for 9 years now, standard except for a K&N and a full decat. It managed 326 bhp @ 7,500 rpm at a Subaru rolling road day - put a number of V9 STi's and UK STi's with PPP's in their place

Never tried a WRX but did test drive a UK classic car with the Prodrive upgrade - STi is a different beast altogether

rbaz

iTrader: (1)

Mine is a 1996 MY97 and it has a VF28 turbo on it.
Dont STI have steel cranks?
Arent the motors blueprinted too??

ImprezARex

To answer your questions mate there is a noticable difference in the sti n wrx. STIs the later models have forged pistons, shorter gearing, bigger injectors, bigger tmics and better brakes eg 4pots. Getting a wrx to 300hp is easly done with a boost controler, fuel pump, bigger injectors, and if looked after will be a reliable unit. My advise go test drive the 2 and then decide mate.

saphcos

What year did the Sti get the forged pistons? I'm guessing from 1996 on as the 1995 and before models were just modified wrx's weren't they?

ImprezARex

YEAH AS FAR AS I KNOW ITS THE STIs ver3 onwards

flashgordon666

When i went around for test drives, the uk was a lot slower then the wrx. I ended up buying a wrx but thinking about selling and buying a sti but then again is it worth it just for 20-30bhp.