DreXeL

I have an MY97 with full decat, Dawes at 1.2bar and K&N Induction, I also have Samco's, ARF Meter, Boost guage and a Knocklink.

I Suppose I'm probably pushing about 260bhp with these mods (correct me if I'm wrong)

Would these further mods see me to 300bhp:

Fuel pump and regulator,
Turbo (TD05? One of the VF series?)
ECU, This is difficult being an MY97, would a Unichip be any good in this situation?

Will these mods give me the 300bhp I'm looking for or is this not going to happen on my standard piddly injectors?

Thanks.


[Edited by DreXeL - 7/27/2003 6:48:40 PM]

[Edited by DreXeL - 7/27/2003 7:09:41 PM]

David MY99

Walbro fuel pump
unichip
VF23/VF35
Samco hoses
different spark plugs (NGK pfr7b)
Full decat

if properly mapped, the output shall be around 310bhp/400NM

Richard Curtis

BTT because I would like to know too

I also have a 97 with a very similar spec.

Full decat
Dawes at 18 PSI
Samco hoses
K&N induction
STI intercooler

But I have a unichip fitted too.
It was 240bhp & 240 ftlbs when mapped at powerstation without the induction - i.e. 255-260 bhp on any other dyno so your estimate is probably not far out.

Just got a secondhand VF28 and would like to get a new fuel pump & regulator.

If I can get away without new injectors I may go for new headers (the bargain gruppe s ones) before getting it all fitted with a remap

Rich

rapac

My97 OZspecs was getting 271hp with 1.1bar(anything more than 1.2??? is a waste as TD04 is out of puff)full 3" from turbo ,K&N filter.
To get 300hp and beyong safely u ll need:
Chip or ECU???
Check injector duty with the 380cc on my97(safe is 85%)and pump
Any of VF22-34 will do lots more
Maybe fmi
Finally a conservative tune on dyno and road for happy wrx days??

Cheers

RICH WILD

I have a 97 UK turbo with 344bhp on the standard ECU and injectors.

You don't NEED to remap if horsepower only is what you want. Sure, a fully mappable ECU will allow you to optimise things, but if you want to do it cheaply (as most people do), leave the ECU alone, it can easily handle 300bhp.

Turbo swap is essential for 300bhp really on a 97, unless you want it to last about 1000miles. I have a TD05 on mine running 1.4 bar which gives 344bhp.
I have actually run it at 1.8 bar before now and it's still in 1 piece, but I wouldn't recommend you do that.It has an uprated fuel pump but standard injectors. Intercooler is an uprated topmount but you can run 300bhp on you standard intercooler providing it has Samcos and is in good nick.

I recommend using an octane booster though.

Cheers

Rich

[Edited by RICH WILD - 7/28/2003 11:42:12 AM]

Rich Curtis

Rich,

Wow - that’s good figures for a UK spec car. How long have you been running it at that power and any problems with reliability etc.?

I assume you have 380cc injectors like mine.

Am I right in saying that with the standard ECU the injector duty is unchanged from standard?

And that you have just compensated for the extra boost with the fuel pump helping to run richer for a given injector duty and the adding octane booster.

Cheers

Rich

DreXeL

Rich Wild: I've read your spec before in another post, VERY Impressive car. TBH I still want some sort of remap for drivability and torque, as well as the extra safety margin.

[Edited by DreXeL - 7/28/2003 6:02:12 PM]

RICH WILD

hi Rich,

I've been running over 300 for almost 12 months now and yes I still use the standard 380s. I use injector cleaner regularly to make sure they are A1.

Touch wood, no reliability problems yet and the car is driven daily.

My injectors are probably running very hard and I understand it isn't an ideal situation to have a standard ECU (which things it's running a TD04) with a TD05, bigger intercooler etc. etc. but the thing is damn quick nevertheless and it has been done FAIRLY cheaply. I ran the car on a dyno with the uprated pump and standard reg and the old TD04 (the day before I had the bigger turbo fitted) and the operator said it was the richest running Subaru he'd ever seen, so the pump made a fair old difference.

I uprated the intercooler and run 100ml NF per fillup to counteract det and even at 1.85 bar (which I hit this week)
I only lit the 1st yellow on the knocklink.

The 344bhp was managed at 1.5 bar peak 1.4 held.

Eventually I am going for an ECU swap as I agree with Drexel that it is the best way to go but it's not something you HAVE to do if you can't afford to.

Cheers

Rich

Weenie

Rich Wild,

Thats some impressive bhp you have got there on a standard ECU. How do you get Around over boost? Are you using an FCD?

RICH WILD

Hi,

Yep.

Rich