FrankM

Hi all

I'have ordered a APS SR30 turbo due to my VF23 has gone.

Has anybody in the U.K. this turbo already fitted an can give some details about his experiences?

My car:
Impreza GT MY99 - Euro Spec
New Age STI VII Engine short block combined with the "normal" cylinder heads
APS - High Flow Air Cleaner
APS - TMIC
SAMCO Intake hose
Scoobysport Downpipe ("open mouth" design) and Backbox
FORGE Blow-Off
IHI VF23 - 'til it died..
Mapped Unichip+Boost Module (max boost around 1,25bar)
uprated Walbo Fuelpump GGS341 255L/h
Power before the engine damage (broken conrod) was around 290HP/380Nm

My question is:
Which boost values under WOT should we use when we do the Unichip Remapping?

The STI short block can handle more boost than the GT/WRX one. What would you recommend for the maximum boost level?

What about rpm over 6000? Can we keep the boost high at 1bar til the revlimit at 7200?


Best Regards

Frank :-)

carlos_hiraoka

Frank,

Could you please comment a little bit more on your short block ..... ?????
Did you encounter problems fitting a new age (STi VII) short block with the older heads and gearbox. Will be interesting to know if this will also apply not only to MY 99-00 but also the previous models MY 97-98.

Thanx,

Carlos H.

FrankM

Hi Carlos,

the block fits without problems.
Even all the nessessary gaskets are the same ...

The inlet and outlet valves of the STI VII fit the old headers as well.
Gearbox matches to the block without a problem.
We tried also to fit the STI clutch inlcuding flywheel but this hasn't worked because it's too big for th 5-speed housing.

All other components oilpump etc. could we use again.

Frank :-)
PS:New Engine block costs around 2700EURO

dowser

Hi Frank,

Can't help with your questions I'm afraid - but am interested in how, and why, your vf23 failed, and at how many km's?

Thanks
Richard

FrankM

Hi Richard,

that's a long story................

The first STI engine was taken from a STI which was involved in an accident.
The front of the car burnt heavily so that the firemen had to use a lot of water.
The engine stayed in my dealers garage for nearly 2 months and during that time the internals get rusty but my dealers wasn't aware of this.
The result: After 132,7 km the engine died, no oil pressure was there anymore, that combined with very high oil temperatures 150°C - and I guess that rusty oil as well - caused in my opinion the VF23 to fail.

So I am not totally sure about that but it's the only explanation for the moment.

Conlcusion: Never use an engine who has burnt ;-)))

Regards
Frank :-)

Adam M

Does this mean the six speed gear box could fit the old shape car?

Floyd

iTrader: (9)

I think it would, the bell housing should be the same, just check the gasket part numbers.

F
PS just buy an STi7 and be done with it.

Adam M

errrr no.

I will stick with a good looking lightweight impreza with significantly more power, and better handling, not to mention rarer, stiffer and more desirable!

uditted dew 2 crisp speaking!

[Edited by Adam M - 6/17/2002 3:46:51 PM]

TopCat

here here Adam;-)

Mmmmmmmmmmm 6 speed box;-)


Moe

dowser

Thanks Frank - let us know how the turbo is

Richard