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| Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler. |
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06-26-2008, 04:31 PM
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#1 (permalink)
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Senior Member
Powerbike Favourite Bike: '07 Bonnie Black
Join Date: Aug 2007
Location: OH
Posts: 371
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Newbie with (probable) stupid question....
So, I'm looking to make easy modifications to improve (however slight) the performance of my 07 black.
I have been reading about simple things I can do, such as desnorkel and the AI elimination.
What I haven't read is simply whether I will need to rejet/adjust idle mixture with either of these simple procedures....or can I do them without worrying about hurting my engine????
I will be doing the airbox elimination in the near future, but looking to make these other minor changes sooner than that...
Any advice is greatly appreciated everyone -
__________________
2007 Bonnie Black 865, AI/Airbox removed, K&N Pods, Preds, 140, 42, 2.5 turns
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06-26-2008, 04:58 PM
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#2 (permalink)
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Loose Head Administrator
Site Supporter Supernova Favourite Bike: 2011 Tiger 800XC
Join Date: Mar 2008
Location: MN, USA
Posts: 21,419 Other Motorcycle: 2007 Bonneville Big Carbs Extra Motorcycle: G12DL, ZX1100, KLR650
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Pull the AI - that's simple, and does not require any rejet.
If you are going to pull the airbox soon, I really wouldn't waste time removing just the snorkel first, unless you are a purist and simply want to see how the performance changes for each scenario - go straight to pulling the airbox, and make sure you add diffferent pipes too.
And...............welcome to the group. Have fun with your bike - post pics - we love pics!
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06-26-2008, 05:20 PM
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#3 (permalink)
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Senior Member
Pole Position
Join Date: Jun 2005
Location: Stuart Fl
Posts: 3,753
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Simple (Free) easy slight perf mods
Desnork- 2 min . Debaffle- takes some time / free & will sound SO nice. A/I- cheap & easy.
Then open the D screws till you get the response you want! None of the above will req re-jetting. It will give you some more PEP! If/ when you get into airboxes & perf pipes- jets will be a necessity! Welcome & enjoy!! Try the above & see how much farther you want to go? Ride safe!!
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CAPT D
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06-26-2008, 05:44 PM
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#4 (permalink)
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Senior Member
Formula Extreme Favourite Bike: ST1300 and Bonnevilles
Join Date: Apr 2006
Location: Charlotte, NC
Posts: 489
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Just wondering, has anyone ever done any before and after dyno runs that show a HP increase just by removing the AI ?????? Had the chance to ride a Bonnie that had the AI removed and honestly, it was no faster than my stock T100.
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TCCox
Charlotte, NC
2007 Bonneville T100
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06-26-2008, 05:51 PM
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#5 (permalink)
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Senior Member
250 Grand Prix Favourite Bike: 2007 Bonneville America
Join Date: Apr 2007
Location: Connecticut
Posts: 108 Other Motorcycle: BMW K75 (sold)
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pulling the AI won't make any difference in performnance, but it will reduce pipe blue-ing. If you pull the snorkle and run a uni-filter and aftermarket pipe (including TORs), your bke will run better if you rejet it. It's really not as difficult as you think. Check out the Dinqua web site for some good reading material.
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06-26-2008, 05:53 PM
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#6 (permalink)
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Senior Member
Formula Extreme Favourite Bike: ST1300 and Bonnevilles
Join Date: Apr 2006
Location: Charlotte, NC
Posts: 489
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Quote:
Originally Posted by gilligan
pulling the AI won't make any difference in performnance, but it will reduce pipe blue-ing. If you pull the snorkle and run a uni-filter and aftermarket pipe (including TORs), your bke will run better if you rejet it. It's really not as difficult as you think. Check out the Dinqua web site for some good reading material.
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Yea, I keep reading that about the pipe blueing but my 2007 T100, totally stock at 4400 miles ,well the pipes have not blued and the bike runs great. Just trying to find out why I should remove the AI.
__________________
TCCox
Charlotte, NC
2007 Bonneville T100
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06-26-2008, 06:00 PM
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#7 (permalink)
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Senior Member
Powerbike Favourite Bike: '07 Bonnie Black
Join Date: Aug 2007
Location: OH
Posts: 371
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Thanks -
Thanks so much for the responses...
I'm off to find a job that will help support the mod habit I feel I'm going to have when all is said and done...
__________________
2007 Bonnie Black 865, AI/Airbox removed, K&N Pods, Preds, 140, 42, 2.5 turns
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06-26-2008, 06:11 PM
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#8 (permalink)
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Senior Member
250 Grand Prix Favourite Bike: 2007 Bonneville America
Join Date: Apr 2007
Location: Connecticut
Posts: 108 Other Motorcycle: BMW K75 (sold)
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Some people like blue-ing on the pipes. So you don't have to remove the AI. It also might reduce the popping you sometimes get if you took the snorkle out of the airbox, etc.
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06-26-2008, 06:28 PM
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#9 (permalink)
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Senior Member
Grand Prix 500 Favourite Bike: 1970 Triumph T100C
Join Date: Aug 2007
Location: Coastal Virginia
Posts: 111 Other Motorcycle: 2000 NTB
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<,pulling the AI won't make any difference in performnance, but it will reduce pipe blue-ing. If you pull the snorkle and run a uni-filter and aftermarket pipe (including TORs), your bke will run better if you rejet it. It's really not as difficult as you think. Check out the Dinqua web site for some good reading material.>>
Actually, mate, I'll beg to differ.
Reducing the tremendous heat that is recirculated back into the combustion chamber from the AI should net a small increase in horsepower. Additionally, it will allow the engine to live a more fruitful life, as a significant amount of heat has been removed from the equation.
Now, to expect any significant increase in power would be foolish, but perhaps 1-2 HP increase in the top of the range is feasible.
Cheers-
RaZOr
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06-26-2008, 06:40 PM
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#10 (permalink)
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Senior Member
Grand Prix 500 Favourite Bike: 1970 Triumph T100C
Join Date: Aug 2007
Location: Coastal Virginia
Posts: 111 Other Motorcycle: 2000 NTB
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Before you jump on the "airbox removal bandwagon", please consider the removal of the snorkle AND the arbox restrictor baffle, accompanied by a K&N filter. If you ride in the rain, whether by accident or on purpose, you'll find the stock airbox serves a valuable purpose, and despite any flack I receive for posting this, was very carefully engineered to create a necessary "pulse" to the stock 790-865cc engine. With 135 jets or larger, and 3.5 turns out on the idle mixture screws, and 1.5" ID silencers (most on the market today, other than TORs, including Bubs, Predators, D&Ds, Norman Hyde, etc., etc.,), you should be able to realise 8HP more at the rear wheel. You should lso consider having your Ignition control module re-programmed, or purchasing another one that allows you to shift @ 8100RPM or higher. Don't worry, you'd be hard pressed to break this engine.
It is grossly over-engineered, with a few folks pulling close to 400 HP out of it. Mind you, this is with turbocharging, heavily modified heads (larger valves, stiffer valvesprings, and heavy porting), a Barnett clutch and a 4340 non-twist crankshaft and Carillo rods.
Even if you decide on a 904cc bore with a stroked crankshaft, yeilding 988cc, you will only be seeing about 85HP at the rear wheel, which the stock appointments will easily handle.
Cheers-
RaZOr
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