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  1. #101
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    i was kinda suprised when I saw the readings.

    I think they calculated the engine power a little high.
    when I calculate with a 15% transmission loss I get about 284hp @ the fly

    Well well. still good
    To bad the EBC wasn't setup properly Could have been a little higher.

    Topper, get your exhaust bits on and get those extra horsies
    Nissan GTR -09 Now with Cobb accessport stage 2

  2. #102
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    I have tried but cant get the car high enough to get the bolts loose

    Car is going in for a service next week, so will have them on by the end of next week

  3. #103
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    I get 286bhp using the quite accurate calculation (rwbhp+10 /0.88). Its just an estimate really. Better to use the RW figure. Even then its going to vary from Dyno to Dyno...

  4. #104
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    241.5 rwhp is still good

    Think i got 228.8 rwhp, will see later in the year how much its improved

  5. #105
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    Quote Originally Posted by Topper
    241.5 rwhp is still good

    Think i got 228.8 rwhp, will see later in the year how much its improved
    well the only thing engine spec-wise differing between our cars are the exhaust bits.
    Get those changed and you would probobly have more then what I've dynoed.

    I got my result with a peak boost of 0.74bar
    Nissan GTR -09 Now with Cobb accessport stage 2

  6. #106
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    And a Walbro, which i havent fitted yet either

    My peak boost was at 11psi, around 0.75 bar

    Would like to see the difference the Decat, Frontpipe and Elbow make. but it can wait

  7. #107
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    Quite a bit. They are three of the four main restrictions in the exhaust circuit.

  8. #108
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    Quote Originally Posted by Nicely
    Quite a bit. They are three of the four main restrictions in the exhaust circuit.
    lol
    the best performance-wise would be to run without an exhaust

    Most people change the cat-back first.
    For performance you should change the other bits first as the exhaust gases are hotter there and needs more space.

    Fit that walbro topper It's plug n play on the S15
    the hardest part was getting that plastic lid back on.

    Nicely's got a good guide on his site. I used that one for support. Didn't really need it as it was a pretty straight forward swap.
    But it always feels better to have a guide next to you when doing it.
    Nissan GTR -09 Now with Cobb accessport stage 2

  9. #109
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    The S15's exhaust isn't nearly as restrictive as the S14s. That's where they get most of the 50 extra bhp from.

  10. #110
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    Denso IK24 sparkies and braided brake-hoses on the way
    Nissan GTR -09 Now with Cobb accessport stage 2

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