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biturbo
Joined: 22 Jan 2014
Posts: 18
Location: ITALY
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 Posted: Wed Jan 29, 2014 6:14 am Post subject: Sb6 and sb8 stock dyno ? |
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| how many horses should have the stock models on the dyno ? |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Wed Jan 29, 2014 10:27 am Post subject: |
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SB6 about 126hp
6R a bit higher 130 ish ... the 6R has a bigger airbox
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Jonny B Bad
Joined: 05 Dec 2009
Posts: 564
Location: NE London
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| Posted: Wed Jan 29, 2014 1:10 pm Post subject: SB6 & SB8 stock dyno |
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My stock 6r showed142bhp on a dyno that showed my 1030cc YB8 at around 130bhp. When I say stock, the 6r has an after-market exhaust and filter but no big bore.
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Wed Jan 29, 2014 3:00 pm Post subject: Re: SB6 & SB8 stock dyno |
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| Jonny B Bad wrote: |
| My stock 6r showed142bhp on a dyno that showed my 1030cc YB8 at around 130bhp. When I say stock, the 6r has an after-market exhaust and filter but no big bore. |
Bastid !!! 
Originally mine showed 100 and wouldn't move for love nor money (I tried both) I reckon it was a Frenchie bike
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biturbo
Joined: 22 Jan 2014
Posts: 18
Location: ITALY
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| Posted: Wed Jan 29, 2014 4:12 pm Post subject: Re: SB6 & SB8 stock dyno |
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| Evilchicken0 wrote: |
| Jonny B Bad wrote: |
| My stock 6r showed142bhp on a dyno that showed my 1030cc YB8 at around 130bhp. When I say stock, the 6r has an after-market exhaust and filter but no big bore. |
Bastid !!!
Originally mine showed 100 and wouldn't move for love nor money (I tried both) I reckon it was a Frenchie bike |
Were was the restriction ?
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Wed Jan 29, 2014 7:37 pm Post subject: |
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In the camshafts, they were low lift
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mad mundy
Joined: 06 Feb 2013
Posts: 25
Location: Australia
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| Posted: Sun May 25, 2014 9:18 am Post subject: |
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Ok most of the bikes built in the early 90's that were of European origin suffered "euro emission law" that means they were capped at 100hp/ps. So they made the power curve fat through the mid range to keep buyers happy & not going to jap bikes. I did extensive work to my SB6 only to reveal 130 at the back door. So my mate who has the dyno conferred with me on this point. The SB6 has a 'bus stop' in the form of the air box. It's big enough but no flow. You really need to slot the cams & dial them in. Magic #s are 106/108...10. That engine is capable of 220rwhp aspirated. Like I have said b4 throw a CDI from a 1991 750 & that will raise the ceiling. When you are failing the cams get the new head gasket & drill the rivets out & only use one shim,making sure to seal the non treated surface. Good luck.
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Sun May 25, 2014 3:46 pm Post subject: |
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Bimota used low lift cams to limit the bike to 100 brake but yeah its airbox that's the problem after that
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