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Check out this chart for the Yoshi RS5 on a CBR600RR

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crphillips
Borekit Bruiser



Joined: 17 Feb 2008
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PostPosted: 21:51 - 16 Mar 2008    Post subject: Check out this chart for the Yoshi RS5 on a CBR600RR Reply with quote
Below is a link for the Yoshimura website. It shows a power/torque chart for the CBR600RR with the standard can and then with the RS5 can.


There is a huge power drop around the 2,300rpm point but the main thing i can't understand is that the bike seems only to be tested upto 7,800rpm......the engine revs to 15,500rpm......unless i'm understanding it incorrectly.

https://www.yoshimura-rd.com/ps-3309-1284-rs-5-stainlesstitanium-full-system.aspx

It's power can't peak at 7,000rpm otherwise all the racers would change gear before 10,000rpm.
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thegubner
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Joined: 25 Mar 2007
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PostPosted: 22:21 - 16 Mar 2008    Post subject: Reply with quote
It'll be a government conspiracy to try and make us think cans that aren't standard are shit, and we wont use them. Rolling Eyes
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D O G
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Joined: 18 Dec 2006
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PostPosted: 22:54 - 16 Mar 2008    Post subject: Reply with quote
I would suggest that the x-axis scale is incorrect, and that the power drop that low down matters not a jot since the bike will never be down there anyway.

For a prestigious power graph after a replacement system, see this for the akra pipe for the BMW R1200S.

Power drop off at 5k sir? You'll be needing one of these!

https://www.akrapovic.com/typo3conf/ext/user_products/mod1/uploads/documents/9bcbaf6b54c1e81722d4a91024959064.jpg
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crphillips
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Joined: 17 Feb 2008
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PostPosted: 22:57 - 16 Mar 2008    Post subject: Reply with quote
bloody hell......there's around 25bhp difference at 5500rpm!
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chris-red
Have you considered a TDM?



Joined: 21 Sep 2005
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PostPosted: 01:39 - 17 Mar 2008    Post subject: Reply with quote
crphillips wrote:
bloody hell......there's around 25bhp difference at 5500rpm!


What are you looking at there is less than 10 Laughing
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craigs23
Mr Muscle



Joined: 08 Jun 2005
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PostPosted: 06:42 - 17 Mar 2008    Post subject: Reply with quote
Wonder what the differences are at part throttle openings.
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D O G
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Joined: 18 Dec 2006
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PostPosted: 09:23 - 17 Mar 2008    Post subject: Reply with quote
chris-red wrote:
crphillips wrote:
bloody hell......there's around 25bhp difference at 5500rpm!


What are you looking at there is less than 10 Laughing


Agreed, but look at the torque curve!

Yes, I know that is also only around 10lb ft, but the difference in profile is simply remarkable.

It's like a fooking table between 6250 and 7750 rpm.

Very nice.
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Fawbish
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Joined: 27 Jan 2006
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PostPosted: 13:55 - 17 Mar 2008    Post subject: Reply with quote
chris-red wrote:
crphillips wrote:
bloody hell......there's around 25bhp difference at 5500rpm!


What are you looking at there is less than 10 Laughing



I was just gonna say Laughing


Its like 5hp at 5500.


Still good though, its almost the same constant increase at 5000rpm to 7000rpm. Impressive stuff Thumbs Up
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crphillips
Borekit Bruiser



Joined: 17 Feb 2008
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PostPosted: 21:15 - 17 Mar 2008    Post subject: Reply with quote
yeah sorry....was looking at the torque curve....doh!
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chris-red
Have you considered a TDM?



Joined: 21 Sep 2005
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PostPosted: 21:20 - 17 Mar 2008    Post subject: Reply with quote
Damofo D.O.G. wrote:
chris-red wrote:


What are you looking at there is less than 10 Laughing


Agreed, but look at the torque curve!

Yes, I know that is also only around 10lb ft, but the difference in profile is simply remarkable.

It's like a fooking table between 6250 and 7750 rpm.

Very nice.


I wasn't arguing that the graph isn't impressive, just that there is no where near a 25bhp gain...
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Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.
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