Stock '08 Header mod.
- Thread starter hawaiian08busa
- Start date
that would be a brave shop owner... IF they got caught doing that it would be a $$$ problem.. If they knowingly render a federally mandated emission contrl device (off or on the vehicle) they are liable..
I would not gut a good cat in the first place as the replacement costs are pretty outrageous and you could probably buy a new system for less than the cost of new cats should they be required. (and never say never)
anyway, just a personal observation gained after watching a lot of people pay to have this kind of stuff fixed...
3ft lbs torque gain? seems like a lot of work and money for nothing..
Installing slip ons or a full system is no different as is installing a PC3 and dyno tuning. All alterations of emission devices. Race only mods not street legal.
Just not strictly enforced..........yet. You know it's comming though. I'll bet the Calif Air Resources Board, C.A.R.B. will be the first to implement it. They've been given God like powers over an unbelievible range of things that go far beyond vehicle emissions. It's frightening.
hawaiian08busa
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Why critisize when this is useful info for the board. Maybe for nothing to you, but to someone who was considering doing the H-pipe can now determine if it's worth thier time or not. For Nothing?? Just the opposite...This is one of the many reasons the board is here. To share information about trial and error and learn from others successes and mistakes.
Mine fortunately cost me a cold pack and I have an extra header in case the process is a flop.
Couldn't snap any pics because the area the work was done in is restricted, but I'll get some pics of the rest of the work.
hawaiian08busa
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I think he was referring to the demand for pictures.
He wants pictures, those are the rules.
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shean1
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Gutting any factory exhuast system nine times out of ten will not yield much true power gain.. It will add noise and reduce some back pressure but not a whole lot more than that... Yes it will reduce some weight.
More than likely what may happen is without adjustments for additional air flow the bike may actually run worse/ idle ruff, back fire..
In my opion, your much better off saving and getting a complete system then having the bike properly tuned for increased air flow..
More than likely what may happen is without adjustments for additional air flow the bike may actually run worse/ idle ruff, back fire..
In my opion, your much better off saving and getting a complete system then having the bike properly tuned for increased air flow..
hawaiian08busa
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Got it...Thanks wharthog3..
Pine
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shean1
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Been riding fast bikes now for more than 25 years, I have never seen a
"street bike" that could be shown to have any substantial power gains by cutting up the stock exhuast.. Most gain substantial noise and run ruff because the bikes come from the factories set to run somewhat smooth with a specific amount of back pressure, and a specific mix/ amount of fuel, once that back presure is reduced without making more adjustments (fuel air mix ratio) the bike usually runs worse not better..
BUT some guys like the sound any way... If you looking for solid power gains,the best way is always to go with a full system & a good tune,
ESPECIALLY WITH THESE NEW FUEL INJECTED MACHINES...
I have owned ALL the following bikes: and left off a few, mostly the smaller cc models..
Yamaha Turbo Seca
Yamaha FZR1000
Kawasaki GPZ750
Kawasaki ZX-10
Kawsaki ZX11
Suzuki GS1150E
Suzuki Hayabusa
Honda V65 Magna
"street bike" that could be shown to have any substantial power gains by cutting up the stock exhuast.. Most gain substantial noise and run ruff because the bikes come from the factories set to run somewhat smooth with a specific amount of back pressure, and a specific mix/ amount of fuel, once that back presure is reduced without making more adjustments (fuel air mix ratio) the bike usually runs worse not better..
BUT some guys like the sound any way... If you looking for solid power gains,the best way is always to go with a full system & a good tune,
ESPECIALLY WITH THESE NEW FUEL INJECTED MACHINES...
I have owned ALL the following bikes: and left off a few, mostly the smaller cc models..
Yamaha Turbo Seca
Yamaha FZR1000
Kawasaki GPZ750
Kawasaki ZX-10
Kawsaki ZX11
Suzuki GS1150E
Suzuki Hayabusa
Honda V65 Magna
hawaiian08busa
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As mentioned here earlier in this post, I will be having a power commander installed along with a few other items like the tre, braided lines, K&N air filter and .....that's about it for now. That'll be done tomorrow and the shop will be installing the moded header to see how it runs. If it's not what we thought it'd be, I'll have the stock unmolested header re-installed and that's that!Well...I did't have he right tools and a co-worker took it and had some guys cut each chamber open w/a plasma cutter. Not sure how, but cleared the chambers out completely and welded the chambers shut. Ground off the slag and repainted the bare areas and looks good. Installing them either tomorrow or the next day.
This week I'll also be adding a race K&N filter, X-TRE, steele braided brake lines & Power Commander. Going to have the shop knock it all out at once with dyno runs in between each mod...
Aloha,
Scott
So...that should take care of any air'fuel mixture issues. Right
Thanks & Aloha...
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hawaiian08busa
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Well...I had the PC-3 installed for several reasons..air/fuel mix fix, decel popping etc. Had the TRE installed (Ivans = POS) or maybe I got a defective unit, but the shop said the shift indicator was jumping from 1 to 5 and whatever else, so they removed it and we scratched that mod. Next time I'll order the right one: (XTRE from Pashnit). Had the K&N air filter dropped in, braided brake lines, and they installed the modded header
. Now the last time I had my Busa on the dyno, they got 165 rwhp. This time before the mods they got 162 w/92 ft lbs torque. After all the add-ons they ran 166 rwhp and 96 ft lbs of torque.
So 2 rwhp and 4 ft lbs gained for about $50.00 + $35 for the dyno..
Nothing worth bragging about, but compared to some stock #'s I've seen posted here on the board, it seems these #'s are on the low side. I am not complaining about the performance and by the way...The noise level hardly changed with the free-flowing stock exhaust. At idle, almost no difference. On the throttle, you can tell the difference, but still tolerable. With my helmet on, I really can't tell
The Busa has way more pwr than I'll ever use. I wonder if there's anything about the dyno and if it would do any good to run it on another dyno to see if they differ and by how much???
Aloha for now and thanks for the input and sharing!
. Now the last time I had my Busa on the dyno, they got 165 rwhp. This time before the mods they got 162 w/92 ft lbs torque. After all the add-ons they ran 166 rwhp and 96 ft lbs of torque.So 2 rwhp and 4 ft lbs gained for about $50.00 + $35 for the dyno..
Nothing worth bragging about, but compared to some stock #'s I've seen posted here on the board, it seems these #'s are on the low side. I am not complaining about the performance and by the way...The noise level hardly changed with the free-flowing stock exhaust. At idle, almost no difference. On the throttle, you can tell the difference, but still tolerable. With my helmet on, I really can't tell
The Busa has way more pwr than I'll ever use. I wonder if there's anything about the dyno and if it would do any good to run it on another dyno to see if they differ and by how much???
Aloha for now and thanks for the input and sharing!
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Pine
Registered
Yea sure but the Gen 2 Busa with its O2 sensor mixes the fuel air ratio automatically regardless of back presure? So back pressure is not an issue here except on older bikes.
Pine
freponyryd
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Pictures please.
hawaiian08busa
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Pics..Sure.
I'll snap a couple, but the only thing different are the weld beads with a coat od high heat rattled on. Haven't had much of a chance to get out with her since yesterday when I picked her up, a storm decided to roll in and now we're having flash flood and high wind warnings. Why warn us, the problems already here!!
Anyways, I'll let you all know how it runs and if there's any notable difference. Pics, I'll try and get that done asap. but you can't see much. Anyone have any hints on how to post the pics? Do I need to resize or what?
Alooooha!
I'll snap a couple, but the only thing different are the weld beads with a coat od high heat rattled on. Haven't had much of a chance to get out with her since yesterday when I picked her up, a storm decided to roll in and now we're having flash flood and high wind warnings. Why warn us, the problems already here!!
Anyways, I'll let you all know how it runs and if there's any notable difference. Pics, I'll try and get that done asap. but you can't see much. Anyone have any hints on how to post the pics? Do I need to resize or what?
Alooooha!
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