P1 FEK

iTrader: (1)

As title....

hux309

Newage are 2.5l while classics are 2.0l

You do however get some newage that are still 2 litre i believe.

But it's not all about power, the newage tends to be 200kg heavier which robs the gain made anyway.

corradoboy

New-age started in 2001 with the bugeye's and 2.5's didn't appear until late 2005 at the end of the blobeye model and the start of the hawkeye, so the vast majority of newage are 2.0 litre. All newage JDM imports are still 2.0 litre too, regardless of year or model.
If you look back, early UK classic Turbo 2000's started out with 208bhp and IIRC, except for specials or performance upgrades ended at 215. Bugeyes started where they left off and then they rose to 220 through the 2.0 litre blob's and up to 225 with the 2.5 hawk's. The increase has been slight and slow, and probably to do with the evolution of the engine components, design and ECU capabilities.

Off the top of my head, and open to correction.

P1 FEK

iTrader: (1)

But when tuning and mapping etc why do the newage cars make better power gains for the same modifications than the classics do on the 2.0 engine?

DJ_MOD_WRX

normally due to wear and tear

hux309

Plus they use different turbo's and the six speed gearbox can handle more power.

MartynJ

They might make more torque than yours m8 , but this is due to the VVT pulling in boost some 500rpm earlier on a like for like basis...
For someone with a VF34 producing 350bhp I don't think you are doing bad...

P1 FEK

iTrader: (1)

That's what I wanted to know. How the newages made more power for the same mods.
I'm quite happy with mine, sorted the idle problem, turned out to be the lambda and fitted a RCM induction kit and it's going well

Slick81

iTrader: (1)

Classic Injectors limit the power that can be put through the engine safely. MY99 onwards have bigger injectors.

Take all the above differences in to account and kinda explains the differences in power.

dunx

iTrader: (3)

JOKE WARNING !

All the problems subaru had with the classics were fixed by releasing the bug-eyes, (and cosmetic upgrades later...)

END OF JOKE WARNING !

Seriously, UK classics were engineered down to a price, IM are notorious skin-flints.... New-age engines are closer to JDM spec., so are a bit stronger and (maybe) more reliable. Think most classic STI's could match my 2002 model with similar suitable mods. TBH

DunxC

whitewagon

all previous posts do cover certain aspects,mostly true. Press releases at the time of newage car were quite succint and mentioned better airflow, so for that read airbox& exhaust as standard,then onto some improved internals,as previously said. injectors for uk were 380 then to 440 on classic. Then the newage needed a decent remap,often via ecutek,and of you go. However, a number of respected tuners were talking power to weight ratios, and quite understandably, conclusions did not always favour the newage over classic.

dunx

iTrader: (3)

Sadly I never had a high spec classic, but the 2002 STI with Brembo's and EBD was enough to keep a Type-R honest as standard. He pulled distance out of the corners, I pulled it back on the brakes....

I liked the fear factor with my classic, but as I'm old now I enjoy mine as it just feels more "planted".

IMHO

DunxC

P.S. lots of >2002 STI's are running over 400 bhp on standard internals....
in 1997 that sort of power was un-heard of...

jasonius

iTrader: (1)

IIRC, the main reason is the later ECU's are far more advanced than the (basic) earlier ones, which enables better mapping via ECUTEK..

Prasius

iTrader: (1)

Can you even seriously compare the two engines?

Comparing standard classic engine to a classic newage engine and asking why the power differences are so different is a bit like me looking at my engine and asking why I'm not making the power of the Zen/AndyF/RCM's of this world.

I don't make their kind of power for exactly the same reasons as a Classic doesn't make newage power. Internals and ancillaries. The blocks and general layout might be the same - but I think you'll find thats where the similarities stop.

BLACK V5

Versions 5 to 6 wrx (my98 to 2000) 2.0 litre. About 1250kg and 276 bhp standard. 2008 wrx 2.5 litre about 1400kg and 230 bhp. So 500cc more and 10 years of development to end up with almost 50 bhp less in a car that weighs 150kg more. Know wonder subaru are losing the plot.