hey all just bought my second impreza after 18 months in a civic type r
(good to have a bit of torque under my right foot again) was wondering whats going to be the best way of taking it to about 250bhp its a 1998 sreg cheers.

 

Hmmmmmmm, that's ONE of the years when a remap isn't possible and it needs a whole new ecu

Mine DID go quite well after I fitted a decent panel filter, and had it decatted. It ran on a TSL Group N system front to rear.
Whether it would make 250 is debatable, probably nearer 240

Has yours had the front brakes modded yet? THAT is a decent road to take, the stock brakes are cr@p.

I've done quite a bit to mine, PM me if you are interested

Mine is away at present having the engine rebuilt onto a 2.5 litre forged short motor.

 

after market ecu on 97 and 98 only really at the moment

Simon

 

nah mate its totally standard apart from a scoobysport backbox sounds nice. have i got the 2 or 4 pot brakes on mine. which is the better section to decat the downpipe or the centre section all help much appreciated.

 

where is the best place to get a new ecu and how much roughly would it cost.

 

if you replace the downpipe you risk it needing a remap.. centre section it should still be safe and release a little power etc

Simon

 

would you recomend a pannel filter with that?

 

And the bailey twin piston

 

yes panel filter works well

 

will get them ordered then cheers

 

oh yeah and that

 

On your brakes, check if they have SUBARU in raised letters on the calipers. If so, you have four pots, if not, two.

Probably the cheapest most worthwhile upgrade is to go to four pots

Leave VTA dumpvalves to those who value the noise above a sweet-running, safe engine.

 

I always thought that 98-00 ECU were Mapable without the need for changing ECU.

quick question JGM i have panel filter,

if i decat and get re-map what power could u get from my MY00 Turbo 2k.

 

The 97/98 ones aren't remappable, AFAIK, the 99/00 ones are?

 

Ah I see that makes sense

 

thats correct..

uk 2000 with standard turbo around 270~280bhp

Simon

 

Any insider information as to if / when a daughter board type system for the 97/98 will be available? I don't want to do huge amounts to mine, but a decat dp and map would be nice to go with the 3" centre and rear.

 

Really that's a huge difference will that translate into alot faster or are we talking marginal difference on the road. what would I need to see say 300-320. Just a fuel pump?

 

Change of turbo, injectors and fuel pump for starters I'd have thought.

 

Really? Is 270-280bhp quick in a classic or not?

 

my 97 uk classic is running 260.1bhp.
i have full hks de-cat system,headers and up-pipe,induction kit,walbro pump and newage wrx intercooler fitted.had it on alan jefferies rollers to get checked out and is running sweet as anut with no need for ecu change etc..unless i want 300bhp upwards.
can play with sti's etc all day long.

 

standard turbo is then maxxed at that

 

So u could take it to that with just a fuel pump but my turbo will be close to going kaboom!!

 

Everyone talks about chasing bhp figures. But it the torque figures you want to chase. Most of it though comes down to the map and how drivable it is.

270 - 280 in a classic is very nice. My wrx ra was running 280/270 and was very nice power. However my Dad's uk 2000 is running 270/280 and that was quicker. Even though the RA had the short box. Torque is where it's at.

 

Considering that the classics weigh less than the newage cars, I'd say it was adequate. Mine certainly suprised a few people at that sort of level


Not really, it just runs out of puff, so you don't get any more power. it's to do with how much air the turbo can shift, once it's at it's maximum, it can't compress any more, so the engine can't breathe any more and "runs out of puff".

 

Hmm fair so what torque wud I be needing to leave a Clio sport in the dust my mates can keep up thoug with my current set up

 

Ah cheers mate now I get it

 

Just get a decent map so the turbo comes in nice and early. All the time you're waiting for the turbo to spool up he'll be on power. You'll probably see him off easy enough with 270 - 280 i'd have thought.

 

Lol I dunno I quite like the idea of him getting closer thinking he has me then I dissapear in a growl of noise and turbo whistle ha ha perhaps that's my evil side he he

 

I think everyone is missing the point here. The op said he had a 98 S reg - he never said what MY it is. That needs to be answered before he blows any cash on a new ecu