What sort of modifications (short of getting a smaller turbo) can one do to reduce the turbo lag on a 03 WRX? I just noticed that alot of modern cars have maximum torque at very low rpm's and was thinking if it's possible to achieve that with the WRX.

Also, if the above is achieved (say I do manage to get maximum torque at 2k rpm), what is the effect on fuel consumption? I'll only imagine it will skyrocket upwards

2.2l stroker

twin scroll setup

exhaust changes

tune in combination with strong fuel

super short ratio gearbox/diffs

antilag setup

trade car in for v8

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Variable vane Turbo will do it too.

Supercharging will too.

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[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

Standard WRX hardly has any lag! Sell 2.0L 03 WRX, buy 2.5L 06 WRX. Bigger engine, same size turbo.
But, what TJ said, stroker kit or 2.5 conversion.
Or just change down gears

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F.B. Racing
01 WRX (STI badged)
2010 XR5 Focus
06 Impreza Hatch 2.0i

clutch kick.........

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- 1997 GC8 STi Track Weapon

- 2006 VZ Maloo R8 II Cammed and Cromoly Caged Street Weapon

- 2004 VY SS II Daily driver

Twin scroll with Dual AVCS(not worth the conversion imo), lots of boost

or a front mount works well I've heard

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forester TF035 turbo. Practially make boost coming right off idle.

Useless top end though.

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RS Liberty - Because WRX's are only good for parts...

nitrous

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Lower your boost. Will hit the target sooner.

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

bigger dump pipe, TMIC = less piping - silicon turbo inlet pipe for better flow - better tune

works for me - my turbo starts spooling from 1800 hits peak boost at 2500 / 4000 rpm @ 19psi

also note that my engine is a 2.5 ltr but the steps remain the same

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Ewrxion87

P-West TMIC / ecutek / HF CAI / Turbosmart / Apexi / Federal / 19psi / bc racing & whiteline / Perrin Performance / Rays