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R1 owners... Graves velocity stacks
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Question R1 owners... Graves velocity stacks - April 12, 2007, 06:39 PM

Who has em?
Are they worth it?
Do I need em?


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April 12, 2007, 07:20 PM

i do
depends on your riding
probably not
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April 12, 2007, 07:30 PM

tell me more...
did you dyno?
increase in horse?
better/smoother power curve?
do they do anything?
if there not needd, why do you have them?


Everytime you cook up...a little boy gets crushed by a bridge. -JTG40cal



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April 12, 2007, 07:35 PM

Unless it's a track bike get the factory pro stacks. Graves will add power at the top end, Factory Pro will give you power down low where you need it for everyday riding.

I've got the Factory Pro stacks, PC3, smog block offs, termignoni fill exhaust, blah blah blah.

http://www.factorypro.com/Prod_Pages...,R1,04-06.html


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April 12, 2007, 07:35 PM

If you don't know why you would need them....then you don't. Simple rule of thumb.

If you aren't going to absolutely tune your carbs, etc for them....don't bother. Kinda like having tits on a bull.

Carry on....


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April 12, 2007, 08:58 PM

I know exactly why I need them... I just didn't understand why the one guy told me I didn't need em, but he had em. What I am looking for is someone who has em (know why they bought em) and can tell me iof the benefits are as described, or too suddle to notice.
Also... I have absolutely tuned my carbs (or fuel injection in this case). I have never riden a bike that wasn't dynoed and tuned to its maximum performance.


Quote:
Originally Posted by MudDawg
If you don't know why you would need them....then you don't. Simple rule of thumb.

If you aren't going to absolutely tune your carbs, etc for them....don't bother. Kinda like having tits on a bull.

Carry on....


Everytime you cook up...a little boy gets crushed by a bridge. -JTG40cal



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April 12, 2007, 09:35 PM

what class/org are you racing in?
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April 12, 2007, 11:03 PM

Quote:
Originally Posted by wildjester
I know exactly why I need them... I just didn't understand why the one guy told me I didn't need em, but he had em. What I am looking for is someone who has em (know why they bought em) and can tell me iof the benefits are as described, or too suddle to notice.
Also... I have absolutely tuned my carbs (or fuel injection in this case). I have never riden a bike that wasn't dynoed and tuned to its maximum performance.
I guess to expound on what I originally said getting graves stacks you wouldn't notice a difference on the street. You will see (feel) gains between 9,000 and 13,000 RPM but won't feel anything below that. If you're honest with yourself you'll know that you won't be in that RPM range much while street riding. The Factory Pro stacks give you a solid performance gain in the low to mid range that you can feel. If I were to buy another 04-06 R1 it would be a mod that I would definately do again. Obviously doing this without having a PC is moot so let's just assume you've got one or will be getting one. If money is an issue I'd hang there for a while and just use a map you've downloaded and tested on a dyno (you can sign up as a premier member and get a couple $30 dyno runs -- and a free one down in MD if that place is still a sponsor) Make sure you don't have any detonation issues and save up for an exhaust kit -- get the smog block offs (cheap) and get those installed. Dyno tuning without removing them is again, moot.

If you have any questions you can shoot me a PM. I'll give you my # and we can talk. -- You could also consider gutting your cat and doing race baffles. That's what I did when I couldn't afford a full exhaust. I'll add some pictures in a moment.

Quote:
Originally Posted by Chris2
what class/org are you racing in?
He's probibly not; and IMO there's absolutely nothing wrong with that. For me working on a bike is just as much fun as riding it.


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April 12, 2007, 11:09 PM

Pics
Attached Images
File Type: jpg P5140002.JPG (136.1 KB, 11 views)
File Type: jpg P5140003.JPG (212.3 KB, 7 views)
File Type: jpg P5140004.JPG (317.9 KB, 12 views)
File Type: jpg P5140006.JPG (175.1 KB, 10 views)
File Type: jpg P5150013.JPG (207.5 KB, 14 views)


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April 12, 2007, 11:12 PM

more...
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File Type: jpg P5170022.JPG (195.6 KB, 8 views)


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April 13, 2007, 06:25 AM

Quote:
Originally Posted by Michael.Terence
He's probibly not; and IMO there's absolutely nothing wrong with that. For me working on a bike is just as much fun as riding it.
i always ask just in case. My understanding of the Superstock classes is that you cant run them.
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April 13, 2007, 07:23 AM

Quote:
Originally Posted by Michael.Terence
Unless it's a track bike get the factory pro stacks. Graves will add power at the top end, Factory Pro will give you power down low where you need it for everyday riding.

I've got the Factory Pro stacks, PC3, smog block offs, termignoni fill exhaust, blah blah blah.

http://www.factorypro.com/Prod_Pages...,R1,04-06.html
Factory Pro will also give you a much smoother power curve opposed to the Graves.
Smog blocks are a must.


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April 13, 2007, 09:54 AM

MT: Have you removed your secondary butterfly's yet?


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April 13, 2007, 10:47 AM

Mike & Matt... I appreciate your help and information. Great pictures Mike!
I understand and it makes sence to me that on the street I will not need graves.
I do not race and will probably never use this bike for the track. I am mostly interested in mods that will give me real usable power on a daily basis. Let me correct myself... power is great (its got plenty of it now) but I am always hunting for the perfect power curve. Smooth throttle, no blips or burps, just straight up threw to the redline.



Quote:
Originally Posted by YaoMatt
MT: Have you removed your secondary butterfly's yet?
I have not done this mods... please explain?
The only mods I have at this time to the engine/trans are PowerCommander, full ti Arata, custom map, and a kevlar clutch.


Everytime you cook up...a little boy gets crushed by a bridge. -JTG40cal



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April 13, 2007, 10:53 AM

Jester: If you're not going to be racing, I wouldn't reccomend removing the secondary butterfly valves. It increases response and power at high RPM's for the track, but makes your low down weaker.

If you want to get smoother, linear power I woudl suggest:

Use the stock air filter unless you remove the flutterbies or change your cam's.
Get rid of the PCIII and use a Gen3 TFI module so you can adjust the torque curve.
Ensure the Lambda Sensor on your arata is connected. If you didn't get the one with it, isntall a bosche lambda sensor and feed it to the ECU so it can fully map AFR.
Get an ignition control module so you can retard and adjust ignition.


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