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ArmyValker
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« on: August 22, 2009, 07:46:24 AM » |
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I just took off some Two Bros Pipes and put some stockers back on. The bike runs 200X better with the stockers, it had a lumpy idle with the Two Bros and seemed to lack the power the bike has simply by putting the stockers back on. Are you supposed to rejet for the 2-BR pipes?
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Willow
Administrator
Member
Posts: 16611
Excessive comfort breeds weakness. PttP
Olathe, KS
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« Reply #1 on: August 22, 2009, 08:49:40 AM » |
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No.
It shouldn't run better with the oems either.
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Gear Jammer
Member
Posts: 3074
Yeah,,,,,It's a HEMI
Magnolia, Texas
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« Reply #2 on: August 22, 2009, 09:40:21 AM » |
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Didn't change jets when I put on 2BR 6x6's. Can't say it ran any different, although the pipes I took off were OEM that had been cut and drilled completely. Keep us informed on what you find.
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 "The problems we face today exist because the people who work for a living are outnumbered by those who vote for a living. |
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MP
Member
Posts: 5532
1997 Std Valkyrie and 2001 red/blk I/S w/sidecar
North Dakota
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« Reply #3 on: August 22, 2009, 09:42:54 AM » |
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I took off 2 bros, and put Mark T's on. Dyno's both. Mark T plus 3 on hp and torque. But, both ran good, and dyno tech said both were fine with the jets in the carbs.
I do not understand the running much better. Does not sound right.
MP
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 "Ridin' with Cycho" |
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SteveL
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« Reply #4 on: August 22, 2009, 09:45:13 AM » |
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Nope, no rejetting with the 2Bros 6-into-6, (that is what you're talking about, right?)
You're prolly just not hearing the lope as much as you did with the 2Bros.
I went from 2Bros 6-into-6ers to Mark-Ts, then you feel a difference as the bike (at least my bike) reved up a bit quicker with the Mark Ts.
You do maybe feel a difference, the pipes aren't identical so the bandwidth/power curve is going to be somewhat different. It dosen't surprise me that you're feeling something. I thought my bike felt a little more "torqy" with the 2Bros.. but it might have been imgaination.. like how they run better after a thorough cleaning.
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ArmyValker
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« Reply #5 on: August 22, 2009, 10:05:59 AM » |
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It's quite noticeable. I just went for a 40 mile ride most of it at 55mph, up to 80 on the highway and 35 in town. It runs NOTICEABLY better, with a lot more get up and go. It's like a completely different bike.
I'd never been impressed with the torque and smoothness of this bike until now. It always felt like a noisy slow pig to me. Also had alot of popping and crackling with the TBR's that is gone now.
My 77 Goldwing could run circles around the bike with the TBR's on it.
I didn't mention that I bought this bike with these pipes on it and this is the first time I've ever ridden a Valk with stock pipes. I've ridden plenty of other goldwings (4 and 6's).
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« Last Edit: August 22, 2009, 10:08:27 AM by ArmyValker »
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Dogg
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« Reply #6 on: August 22, 2009, 10:10:01 AM » |
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did you buy the bike new or used? did it come from a higher elevation than where you are? It seems as tho in leaner conditions, the bike performs well with all that back pressure. open them up with the 2br and well, It only performs at wot. it seems as tho that bike was from Co or something. thinner air anyway. only way I can figger it being that noticable...
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Willow
Administrator
Member
Posts: 16611
Excessive comfort breeds weakness. PttP
Olathe, KS
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« Reply #7 on: August 22, 2009, 10:20:31 AM » |
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did you buy the bike new or used? did it come from a higher elevation than where you are? It seems as tho in leaner conditions, the bike performs well with all that back pressure. open them up with the 2br and well, It only performs at wot. it seems as tho that bike was from Co or something. thinner air anyway. only way I can figger it being that noticable... There is also the possibility that something that had been loose was tightened during the change out of the pipes.
Changing to the MarkT pipes should improve performance if the MarkT's have the crossover. Changing from TBR's to stock shouldn't show a performance improvement.
What's most important is that he likes what he has on the bike better than what he took off. Those TBR 6X6 are getting harder to find. Maybe he'll sell them cheaply.  |
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ArmyValker
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« Reply #8 on: August 22, 2009, 10:59:45 AM » |
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did you buy the bike new or used? did it come from a higher elevation than where you are? It seems as tho in leaner conditions, the bike performs well with all that back pressure. open them up with the 2br and well, It only performs at wot. it seems as tho that bike was from Co or something. thinner air anyway. only way I can figger it being that noticable... There is also the possibility that something that had been loose was tightened during the change out of the pipes.
Changing to the MarkT pipes should improve performance if the MarkT's have the crossover. Changing from TBR's to stock shouldn't show a performance improvement.
What's most important is that he likes what he has on the bike better than what he took off. Those TBR 6X6 are getting harder to find. Maybe he'll sell them cheaply. I'll clean them up and post some pictures. I'd be willing to let them go cheaply to board members.  |
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Hellcat
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« Reply #9 on: August 22, 2009, 12:31:32 PM » |
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My bet is with Willow - something was wrong with the TBR install, maybe just the header gaskets weren't sealed properly.
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