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Thread: Had car on rolling road today

  
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    Had car on rolling road today

    I went on a rolling road today at Triton in Bournemouth.
    They specialise in Subaru and Evos.

    On my graph the AFR was about 10.6 when the boost starts then levels off at about 11.4.
    The rolling road operator said it should be a bit leaner at about 12-12.5 without the big dip in the AFR.

    It made the same power as i had when it was mapped at Thorney a year and a half ago. 204.1 BHP at the wheels
    242.7BHP at the flywheel
    280lb/ft torque.

    What are other peoples Air fuel ratio?
    Maybe my AMM is on its way out. I've never changed it in the 2 and a half years i've had the car.

    Any coments please?


    SMIC, miltek catback, precat, Thorney remap 242.7 bhp 281lb/ft torque

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    nice graphs there! i noticed it says gear 3? thought most runs were done in 4th gear? are you pleased is whats important. i was told at cortenay the afr should be around the 9 mark. my afr was 5 so it was running lean, new afm sorted that out! isnt yours a thorney map? give them a call and ask as im sure they will help you!!!

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    On dyno dynamics rolling roads they are run in gear 3 for some reason. it produced the same results as other rolling roads i've been on that weren't dyno dynamics.
    Just been doing a bit more research on the AFR and from a fiat coupe turbo ownsers club they are saying a AFR between 11 and 12 is good. and leaner than 12 you might get detination.
    So looks like mine all ok then.
    if your AFR is 5 then they must be going off a different scale.
    SMIC, miltek catback, precat, Thorney remap 242.7 bhp 281lb/ft torque

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    Quote Originally Posted by dazerc View Post
    On dyno dynamics rolling roads they are run in gear 3 for some reason. it produced the same results as other rolling roads i've been on that weren't dyno dynamics.
    Just been doing a bit more research on the AFR and from a fiat coupe turbo ownsers club they are saying a AFR between 11 and 12 is good. and leaner than 12 you might get detination.
    So looks like mine all ok then.
    if your AFR is 5 then they must be going off a different scale.
    it was running at 5 as the afm was knacked. courtenay swapped it and they then said it was fine at 10-11! stange that there rollers run in third? must work ok if you got the same results

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    Quote Originally Posted by webbo gsi View Post
    it was running at 5 as the afm was knacked. courtenay swapped it and they then said it was fine at 10-11! stange that there rollers run in third? must work ok if you got the same results
    yeah 2 weeks after i had it mapped and rolling roaded we had a rolling road day in Northern Ireland on the same rollers that courtenay use (well graphs look the same) in gear 4 and it was 2 bhp more than at Thorney. so allowing for differences in temps etc they were the same.

    Think i'll try a new AFM as i've never changed it in 2 1/2 years since i've had the car. can't do any halm to change it.
    SMIC, miltek catback, precat, Thorney remap 242.7 bhp 281lb/ft torque

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    Gnasher's Avatar
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    Mine was off the bottom of the graph anywhere above 3000 RPM on mine - it was a good 20-25BHP down on standard power too (Z20LEH)
    2006 Astra VXR on 19's in Arden Blue
    ExhaustsUK Catback, Eibach Sportlines, DS Ultima, Roose hose kit, Forge recirculating dump valve, Full self modded SMD conversion

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    I put a new AMM on the other day and it seams to be better low down power.
    Can't tell for sure if its sorted out the over rich on boost. only way to tell would be to put it back on the same rolling road again.
    SMIC, miltek catback, precat, Thorney remap 242.7 bhp 281lb/ft torque

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