JMB RetrofitsAH Fabrications
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  1. #1
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    Best way to find out power gains?

    Whats the best way to find out my actual power gains on my audi s3 which i bought just over a year ago. I asume i have to take car to a specialists etc, is this costly?. And where do i start looking. Live not far outside glasgow.

    I have been told car has

    REVO remap, taking it to 265 bhp
    And it also has a BMC carbon filter and a forge recirculating alloy dump valve.


    Any help is well appreciated

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  3. #2
    LiveWire's Avatar
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    The only way you will find out the true BHP of your car is to get it on a rolling road...and get a print out of the power your car is producing.
    52 plate S3 / Ming Blue / 60K / Celtic Tuning Re-Map, Allegedly 278 Bhp-256 lb/ft (not proven/no chance)

  4. #3
    IIIadidasboy's Avatar
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    Rolling Road is the obvious answer.

    But you can also do it via VAG-COM - if you have access to it - by logging certain blocks and then transferring to MS Excel. There are spreadsheets available on the web that are already set-up to do this, think it's called "butt dyno" or something. Some say it's more realistic / accurate, because you're doing the runs with correct air flows etc - but you'll need a very long and quiet road to do it - remember, stay safe!!
    2003 ARY A3 TQS - totally bog except for 18" Dezent Motion Blacks - Hopefully the Brembo Jr will fit these and I can start to update my sig!!

  5. #4
    S3fan's Avatar
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    Evo - May 2002 "...For keen drivers, the revised S3 is currently the best car Audi makes."

  6. #5
    voorhees's Avatar
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  7. #6
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    much would it cost to have car tested on rolling road

  8. #7
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    any rolling road in glasgow for s3 quatro?

  9. #8
    1animal1's Avatar
    The Clar!! it mouves!!!

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    Vagcom works it out from various signals from various sensors..... personally id be finding a specific type of rollers (cant rem the name of them) as a lot of rollers really dont tell the full story..... throw in your haldex and your left with an even bigger problem to identify the power

    no help im afraid, we're all in the same boat
    Xbox 360 gamer ID : Timffy

    Grey Triumph Sprint 1050 ST
    Silver BMW 535D Tourer - Fully loaded 340BHP 700NM torque
    2009 8P3 S3 Brilliant Red - Sold
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  10. #9
    Andrew@A.L.D's Avatar
    Cylinder Head Master

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    To get a true reading then you need a engine dyno

    Rolling roads are not the most accurate when it comes to true figures
    RIP S3dave/David Marshall stickers now available

    FOR SALE
    None resonated Milltek exhaust,
    Adjustable FPR from 1-5 bar, 2 sets of Unused ARP 3/8 2000 rod bolts, relentless 200 cell cat pipe, Std AGU Crankshaft. Ported & Reconditioned Cylinder head service.

  11. #10
    1animal1's Avatar
    The Clar!! it mouves!!!

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    knew someone more experienced would pop up, cheers Andy
    Xbox 360 gamer ID : Timffy

    Grey Triumph Sprint 1050 ST
    Silver BMW 535D Tourer - Fully loaded 340BHP 700NM torque
    2009 8P3 S3 Brilliant Red - Sold
    2001 F/L S3 Dolphin Grey - Sold
    1999 Pre F/L Silver A3 1.8T - Sold

  12. #11
    Andrew@A.L.D's Avatar
    Cylinder Head Master

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    Put my old ford engine on one

    more details here

    http://en.wikipedia.org/wiki/Dynamometer

    One in action, it gets good at 1:20
    RIP S3dave/David Marshall stickers now available

    FOR SALE
    None resonated Milltek exhaust,
    Adjustable FPR from 1-5 bar, 2 sets of Unused ARP 3/8 2000 rod bolts, relentless 200 cell cat pipe, Std AGU Crankshaft. Ported & Reconditioned Cylinder head service.

  13. #12
    S3KO4's Avatar
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    doubt 265. I have stage 2 with all the mods, and only getting 263
    S3-8L REVO stage 2, Milltek, 3" DP & custom 3" decat, RS2 spark plugs, 4 bar FPR, Green-Cotton uprated upper/lower boost hose & TIP, Front Zimmerman & Ferrodo. LCR spliter. boost gauge, smoothed AB. Aero blades, H&R 5mm spacers. Best time 14.03sec, 0-62 in 5.7sec. 207gs @ 25psi , polished inlet mani. VAGCOM 805.1

  14. #13
    Chlippo's Avatar
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    u still need the FMIC mate

  15. #14
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    All RR differ, some over read, some are pretty much spot on (which usually leave the owners upset)
    What I used to do was to get a RR figure before I start modding & during so then I can see what difference the mods have made. A RR can give you a rough idea, it really does depend though. I think some RR will have to pull the Haldex fuse to do the runs...
    I think Thor have a better way of doing things with hub dyno's but as said above, bench dyno is the only way to get a true figure without fudge factors.
    Ebony black 99 S3, Forge 007, cone filter, goodridge braided lines, apex lowering springs. More to come...

 

 

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