06 WRX stg 2 vs S4
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This is a discussion on 06 WRX stg 2 vs S4 within the Comparison: WRX vs World forums, part of the Community - Meet other Enthusiasts category; Last night I was up waiting for a few friends to call me to hangout and I was parked in ...

  1. #1
    Registered User Paintballguy's Avatar
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    06 WRX stg 2 vs S4

    Last night I was up waiting for a few friends to call me to hangout and I was parked in a local parking lot where people gather usually. So a EVO, SRT4 and a S4 roll up and they seem to be pretty cool so I was talking to him. The S4 driver jokingly asked if I wanna run real quick, so immediately I was like hell yea lets do it.

    We line up at this long strip and get ready. I rev out to 4k and go off the line; we were neck and neck up to 3rd then I started to pull him. I ended up getting a car length on him before we shutdown. I had a kindof ****ty launch too.

    How fast are s4's?
    2007 SWP STI
    2006 WRB WRX 11.5@119mph ~sold

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  3. #2
    Registered User DJSHADOW7's Avatar
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    What year was the s4?
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    Registered User Paintballguy's Avatar
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    dunno but i know it was the twin turbo one... He had it completely debadged and I don't know much about Audi's.
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    Registered User Chiketkd's Avatar
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    Quote Originally Posted by Paintballguy
    dunno but i know it was the twin turbo one... He had it completely debadged and I don't know much about Audi's.
    Stock the last gen TT S4's are very low 14 second cars (very high 13's with a good driver). They are easy to mod though and a simple chip can add 40+hp.
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  6. #5
    Registered User Paintballguy's Avatar
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    I think he mentioned something about having a chip....
    2007 SWP STI
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  7. #6
    Registered User DTR rex's Avatar
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    1) S4 was never a twin turbo. It was a bi-turbo. They are two different things.

    2) Stock they are very low 14sec cars (slightly quicker than a stock wrx, with a traps a few mph higher).

    3) You said he had a chip, which would put an S4 right around the mid-lower 13sec range, which right around where a stageII wrx would be... So the race outcome def. makes sense.

    4) Watch it though. With full exhaust and well tuned ecu/chip they are 12sec cars.

    5) Good kill
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    Registered User MagikMan's Avatar
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    Depends on whether or not they have a 1 bar chip or a 1.2 bar chi... however they are capable of running 12.8's chipped.
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    Registered User Chiketkd's Avatar
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    Quote Originally Posted by DTR rex
    1) S4 was never a twin turbo. It was a bi-turbo. They are two different things.
    What's the difference?
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  10. #9
    Registered User dcpatters's Avatar
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    I had a 2001 S4. Great car. The small turbo's made great low-end torque with very minimal lag. The top end thought was a bit flat I thought. What hurts the car is the vehicles weight.
    2008 Evo X GSR. Custom tuned, Works panel filter, Intercooler pipe upgrade, TBE.

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    Registered User dcpatters's Avatar
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    Quote Originally Posted by Chiketkd
    What's the difference?
    That's a good question. I'm assuming a traditional twin-turbo setup uses some kind of step or stage set up. I think the RX7 and Supra used a similar configuration. One small turbo to build boost and torque while the larger turbo was spooling for the top end?!? When I had my S4, each bank had a very small compressor. Again, I am not 100% sure that is the correct explanation.
    2008 Evo X GSR. Custom tuned, Works panel filter, Intercooler pipe upgrade, TBE.

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    Registered User Herknav's Avatar
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    Correct me if I am wrong, (and I often am), but I think a twin turbo utilizes one turbo for each "side" of the engine, utilizing the exhaust from half the engine to spool each turbo.
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  13. #12
    Registered User Chiketkd's Avatar
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    Quote Originally Posted by dcpatters
    That's a good question. I'm assuming a traditional twin-turbo setup uses some kind of step or stage set up. I think the RX7 and Supra used a similar configuration. One small turbo to build boost and torque while the larger turbo was spooling for the top end?!? When I had my S4, each bank had a very small compressor. Again, I am not 100% sure that is the correct explanation.
    What you say is true about the last gen RX-7 and Supra TT - they both had sequential turbos where the smaller one came on-line before the larger one. However, that wouldn't hold true for the '90-'96 300ZX TT and '91-'99 3000GT VR-4. They had turbos of equal size feeding each bank of the engine.
    Quote Originally Posted by Herknav
    Correct me if I am wrong, (and I often am), but I think a twin turbo utilizes one turbo for each "side" of the engine, utilizing the exhaust from half the engine to spool each turbo.
    That's possible, but does the Audi biturbo system in the last gen S4 or the current RS6 work completely differently? I always thought it was a marketing term more than anything else.

    DTR rex needs to educate us all on this.
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  14. #13
    Registered User Chiketkd's Avatar
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    Audi of South Africa to the rescue....



    The “bi” comes from Latin and means “two”. The “Biturbo” designation in connection with Audi V engines signifies that two turbocharger have been installed, one for each bank of cylinders. The driver benefits from increased torque at the low end, more power at the upper end and improved engine response. Audi uses these advantages in the Audi RS 4, for example as well as in its competition cars (the Audi R8).

    http://www.audi.co.za/glossary/b/biturbo

    So there's no difference in calling an S4, RS4, RS6 or R8 a twin turbo since the Audi biturbo set-up functions in the same way as the TT set-up in other cars.
    2006 Steel Gray WRX TR
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  15. #14
    Registered User WRX-ERROR's Avatar
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    My 2002 stg2 WRX raced my friends stock 2000 S4 and smoked it pretty bad. He just added a GIAC chip and tiptronic chip but we haven't gotten a chance to run them yet. But I drove the car and I think it's quicker then my WRX. Having the 2.5L and fxt tranny should help you out more. So the race sounds like a chipped S4.
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  16. #15
    Registered User WRX-ERROR's Avatar
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    Recap.. I ran my friends GIAC chipped S4 yesterday. From 20 to 75 the end was his front bumper was at my back door. before his chip he was like 2 to 3 cars back so that a big improvement for the money he spent.
    2002 PSM utec Stage 4
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