Main Motorcycle: Bonneville America
Join Date: Dec 2007
Location: Leicester-UK Gdansk-Polska !!
Other Motorcycle: 2001 Bonneville Custom
|Air Cooled Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.
Sponsored by: Triumph Twin Power Ltd
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Then I rode a EFI Thruxton with pod filters, Arrow exhausts, Re-map, the works.
Truth is, although in high revs it pulls much, much harder than mine, it isn't as nice to ride around town.
One doesn't get the feeling of a better, higher performing bike. It feels more like a dedicated racer's bike.
So, like I'm sure many others, I don't really know what my future performance up-grade will be. I mean, the bike is fine for what it is, but if I were a snorkel removal away from an extra hp...
Identical apart from small differences in CR and the exhaust system is slightly different.
Absolutely, manufactures must stay within the acceptable emission and noise constraints of the current standards and still produce acceptable power. This is exactly why Triumph ditched the carburetors for EFI. Less intake noise, more efficient A/F metering for various conditions.
This however doesn't suggest the engine is running at peak effeciency or can't be modified to run more optimally.
Hi again propforward, you should certainly give it a go!
Without a doubt removing the snorkle will lean up your mixture.
And will take it slightly above the 13 which we strive for.
The only restrictive factor will then be the airbox restrictor plate which you should also consider.
This really is a simple job, especially if you remove the battery and the four air-box securing bolts. This allows you to move the air-box around by just enough to give access to the elusive three screws which would give a problem otherwise.
If both are removed then a step-up in jets will be required, and you'll certainly notice the difference!
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