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Thread: high flow sv1000s exhaust headers

  1. #16
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    8th April 2013 - 19:33
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    Quote Originally Posted by layton View Post
    are they not 120 standard? or there abouts?
    yes at the crank they are around 118hp, I got a base dyno run which showed 109hp/66ftlb tq, @wheel, mtr had just been serviced and had yoshi mufflers and the tank lift mod which allows cooler air into eng.
    if the m4 exhaust system is anything to go by , it should gain 6hp, but I'm expecting 12-15hp from exhaust, + 1-3hp from air filter

  2. #17
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    14th July 2006 - 21:39
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    Quote Originally Posted by layton View Post
    are they not 120 standard? or there abouts?

    Crank hp at best. WRHP is what a dyno reads.

  3. #18
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    27th November 2012 - 11:25
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    i changed my oil, expecting 100HP gain right there, that would make the xtz125 108hp at the wheel

    isnt the suspension the real problem with the SV? make it go faster in the corners rather than wasting $$ and reducing engine life of the bike when its not going on the track? >_> anyway goodluck have fun with the build

  4. #19
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    14th July 2006 - 21:39
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    Quote Originally Posted by Scubbo View Post
    i changed my oil, expecting 100HP gain right there, that would make the xtz125 108hp at the wheel

    isnt the suspension the real problem with the SV? make it go faster in the corners rather than wasting $$ and reducing engine life of the bike when its not going on the track? >_> anyway goodluck have fun with the build
    Why would a better performing exhaust system reduce engine life? A better system (and fueling) will improve real life riding across the rev range.

  5. #20
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    Quote Originally Posted by Scubbo View Post
    i changed my oil, expecting 100HP gain right there, that would make the xtz125 108hp at the wheel

    isnt the suspension the real problem with the SV? make it go faster in the corners rather than wasting $$ and reducing engine life of the bike when its not going on the track? >_> anyway goodluck have fun with the build
    suspension was the first upgrade I advised him to make, and he followed that advice, Robert Taylor upgraded fork internals, and fitted a nitron rear shock.
    I also fitted some ebc higher grade brake pads as the stock ones were very wooden and had limited stopping power.

  6. #21
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    19th January 2006 - 19:13
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    Good work fella,more pics sometime if ya will.
    Be the person your dog thinks you are...

  7. #22
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    8th April 2013 - 19:33
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    so the tuner (brent) has been too busy to get to the sv this week, as he has the supersport 300 class on his mind.
    so hope it's gonna get done early next week, cause my bike is next to be tuned, been waiting about a month for a spot to get it tuned....

  8. #23
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    14th July 2006 - 21:39
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    Must be a good bugger if he is booked out.

  9. #24
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    8th April 2013 - 19:33
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    just pickt up Bretts sv1000, dyno said 121.2 hp, was thinking it was stronger, it is what it is, I managed to get my bike back together and swapped it over for tuning.
    it should be getting done next week at last!

  10. #25
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    14th July 2006 - 21:39
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    121 at the rear wheel is a decent gain from stock.

  11. #26
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    8th April 2013 - 19:33
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    better than a kick in arse, 11.5hp, still waiting on the dyno sheet to See the torque delivery, power curve was fairly progressive, but it gained most in top 1/3rd of delivery.

  12. #27
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    Click image for larger version. 

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    hi, so here's some pics of completed exhaust, I included before /after dyno sheets

  13. #28
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    24th February 2010 - 21:01
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    Either I'm too pissed, or they are all upside down !

  14. #29
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    8th April 2013 - 19:33
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    your not the only one, I'm sure they were up the right way when I uploaded them...
    so the airbox snorkel mod didn't help and it was too noisey, it was making alot of really loud pulsation reverberation, so ive got him a 2nd hand replacement to get it sounding quieter for the bro.

  15. #30
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    14th July 2006 - 21:39
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    The nice progressive link you have made for both headers looks like the set-up on my Ducati. Nice smooth flow.

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