Before/After our headwork on 1000rr dyno - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

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post #1 of 29 Old 10-24-2006, 10:00 PM Thread Starter
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Before/After our headwork on 1000rr dyno

We just finished doing headwork on a 1000rr. Cams put back to stock.
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post #2 of 29 Old 10-24-2006, 10:02 PM Thread Starter
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Re: Before/After our headwork on 1000rr dyno

Stock run 146.0 rwhp and 75.4 tq. After: 157.6 rwhp and 78.6 tq.

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post #3 of 29 Old 10-24-2006, 10:21 PM
 
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Re: Before/After our headwork on 1000rr dyno

Damn it..................... Add to the list of things to do.

Have SilverBullet work the head on my 954.
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post #4 of 29 Old 10-24-2006, 10:22 PM
 
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Re: Before/After our headwork on 1000rr dyno

11 HP for porting, not bad at all. Are the cams degreed or is that what you mean by "back to stock"?

Did you clean up the throttle bodies at all?
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post #5 of 29 Old 10-24-2006, 10:27 PM
 
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Re: Before/After our headwork on 1000rr dyno

Nice #'s

It's amazing how stupid some people can be.
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post #6 of 29 Old 10-24-2006, 10:59 PM Thread Starter
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Re: Before/After our headwork on 1000rr dyno

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Originally Posted by abtech View Post
11 HP for porting, not bad at all. Are the cams degreed or is that what you mean by "back to stock"?

Did you clean up the throttle bodies at all?

Headwork perfomed was shave/port/polish. Cams were not degreed, set back to stock settings. We didn't do the throttle bodies on this one.

Oh yeah, dyno runs perfomed on pump gas.

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post #7 of 29 Old 10-24-2006, 11:01 PM
 
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Re: Before/After our headwork on 1000rr dyno

Did you do a valve job? Sounds like there's room for a few more ponies in there.
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post #8 of 29 Old 10-25-2006, 8:58 AM
 
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Re: Before/After our headwork on 1000rr dyno

What does a Mod like that cost?
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post #9 of 29 Old 10-25-2006, 12:11 PM
 
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Re: Before/After our headwork on 1000rr dyno

Shave? You mean the head gasket surface.. What about the timing chain slack afterwards? That's a problem with all OHC engines.

Ports? Are the stock castings that bad? I'm assuming you didn't polish the intake, just the exhaust.

Start typing there, Silverbullet! Your Homies are reading.

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post #10 of 29 Old 10-25-2006, 12:16 PM
 
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Re: Before/After our headwork on 1000rr dyno

why did you decide to go back with the stock cams, and i thought that when you shaved the head you had to use an adjustable cam gear to get the properly timed. good looking curve on that motor though. was it an 05 or 06

i want to have mine done within the next year
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post #11 of 29 Old 10-25-2006, 12:37 PM
 
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Re: Before/After our headwork on 1000rr dyno

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Originally Posted by MSGT-R View Post
Shave? You mean the head gasket surface.. What about the timing chain slack afterwards? That's a problem with all OHC engines.

Ports? Are the stock castings that bad? I'm assuming you didn't polish the intake, just the exhaust.

Start typing there, Silverbullet! Your Homies are reading.
That is what adjustable cam chain tensioners are used for . . .
I think most builders polish the intakes and exhaust ports, just to a lesser degree depending on the application and relative flow. Any stock casting can usually be made better if you use someone with a flow bench that knows what they are doing.

I have also seen several applications where the stock cams performed better overall than racing cams (again depending on the application).
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post #12 of 29 Old 10-25-2006, 1:21 PM
 
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Re: Before/After our headwork on 1000rr dyno

But stock adjustable tensioners can only take up so much slack before they are at max. I know an adjustable cam gear can compensate up top (for timing).The '06 RR is about as much as you can run on pump gas now. I wonder how much was shaved off the head?

As for the polishing, I guess you can get away with more intake port polishing now that the fuel is no longer transported from a carb. Then again, you still have the shower head injectors...

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post #13 of 29 Old 10-25-2006, 1:34 PM
 
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Re: Before/After our headwork on 1000rr dyno

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Originally Posted by MSGT-R View Post
But stock adjustable tensioners can only take up so much slack before they are at max. I know an adjustable cam gear can compensate up top (for timing).The '06 RR is about as much as you can run on pump gas now. I wonder how much was shaved off the head?

As for the polishing, I guess you can get away with more intake port polishing now that the fuel is no longer transported from a carb. Then again, you still have the shower head injectors...
I have seen custom length cam chains used for applications where the tensioner doesn't have enough adjustment. Noting from another thread about the coolness of gear driven cams, the persons touting them have obviously never shimmed up a V-Four after milling the heads . It makes finding valve shims seem like playing with Necco Wafers . . .

From the last 2 motors I had built (one with carbs, the other FI), both had the intakes polished including the throttle bores on both. The polishing wasn't over the top, but complimented the subtle change in shape of the intake ports required to get the flow numbers we were looking for.
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post #14 of 29 Old 10-25-2006, 3:08 PM
 
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Re: Before/After our headwork on 1000rr dyno

I know where to go when i pick up my new 1000rr
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post #15 of 29 Old 10-25-2006, 3:15 PM
 
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Re: Before/After our headwork on 1000rr dyno

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Originally Posted by ND4SPD View Post
Did you do a valve job? Sounds like there's room for a few more ponies in there.
looks like just a rim job

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