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Thunderbird Twin - Technical Talk Technical talk for the big Thunderbird twin

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Old 07-19-2009, 01:28 PM   #1 (permalink)
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was in my local dealer yesterday drooling over the demo moaning when is mine coming when i had a good look underneath, i noticed how easy a cat bypass would be on this bike, you are only going to need a few inches of bent pipe and that bad boy is gone, i wonder how long before someone get it on a power commander with a bypass and see what it can really do
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Old 07-19-2009, 03:57 PM   #2 (permalink)
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Been anxious about that myself. The R3 guys claim thiers gain 18 HP with bypass ! If ours gain a similar amount in relation to engine size, we could get 12 HP, and with pipes and K&N filter more than the BB kit ! My dealer, who is not your typical triumph dealer in that he builds super high HP triumphs and develops performance parts for them says he\'s going to develp a set of short pipes for the Tbird AND a cat bypass, both the physical bypass itself and develop the tune for it. Needless to say this excites me beyond words. I will of course post about it the day he\'s done it.
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Old 07-29-2009, 04:02 AM   #3 (permalink)
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Quote:
Originally Posted by hundleton1 View Post
...moaning when is mine coming...
When is it planned to arrive? I'm having to wait till September sometime...

Got any info on possible CAT bypass mapping?
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Old 07-29-2009, 10:39 AM   #4 (permalink)
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No one is going to have anything for a while. It seems to have taken a year before the EFI bonnies started seeing custom maps starting to happen. I imagine my dealer will do it before anyone, or at least close. And you of course know i'll be racing towards my keyboard the second i hear anything.
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Old 07-29-2009, 12:00 PM   #5 (permalink)
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Just got word that the power commander was going to be released for the tbird on August 23rd.
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Old 07-29-2009, 12:12 PM   #6 (permalink)
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Thanks for that, thats awesome ! Hopefully things will start moving quickly. I hope to see a lot of tunes to improve the bike even further as i saw with the rocket. They came up with tunes that would improve performance a lot w/o even having done any physical mods. AFAIK stock EFI mapping can usually be improved considerably because it's mapped with EPA regs and other things in mind that are done at the cost of performance. I think there is no arguing the fact that an engine's performance today is sacrificed to a huge degree because of things like that. Back in the day you could get the same performance out of a 750 that today would probably require a 1200 to match. I can imagine what the Tbird would be like w/o all that BS.
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Old 07-29-2009, 12:15 PM   #7 (permalink)
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Well, I've got one preordered, so we'll see how that works out. Now, only two things left... figuring out pipes, and how to launder the money so my wife doesn't kill me. hmmmm
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Old 07-29-2009, 12:24 PM   #8 (permalink)
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Quote:
how to launder the money so my wife doesn't kill me.
At your size i don't think she'll mess around with you ! LOL!

How much did you pay for the PC?
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Old 07-29-2009, 01:28 PM   #9 (permalink)
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Haven't paid yet but as I recall it was $329.00

His take was that he didn't feel that the Triumph map would be enough for the bb kit and pipes. Now, that could of been a bunch of sales bs, but it would certainly help when it comes to further modding.
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Old 07-29-2009, 01:37 PM   #10 (permalink)
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How does he know that? Unless he's taken delivery on the BB kit already, according to my dealer he can't know anything about that map. Or maybe he's just assuming.

I need to get a Power commander, but my problem is i don't have a laptop. I may be able to get a cheap old one free from work, but unless i do that means a PC will cost me $329 plus the cost of a laptop which will likely be that much again for a old used one.
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