Triumphrat

Mezambo · 03-03-2006, 01:40 PM

I'm just wondering how the Thruxton generates more horsepower than the T100. The specs look identical. Anybody know?

raproe · 03-03-2006, 01:53 PM

Ask the Triumph marketing department. I doubt that their engineering department can figure it out either.

Panthermark · 03-03-2006, 01:56 PM

That question has been around for a long time.

My guess is that the stock Thrux pipes (and maybe the kink-less header pipes) has a lot to do with it....

iandel · 03-03-2006, 02:50 PM

G'day,

Maybe it's the tapered needles. :razz:

Moggy · 03-03-2006, 03:37 PM

A 'Standard' T100 may have less HP than the Trux. Better pipes, rejetting etc and they are probably comparable.

ohiorider · 03-03-2006, 03:38 PM

The info we don't see (I don't see, anyway) are the specs that show:

- differences in carb setup, if any
- ignition timing advance curves
- cam timing and overlap
- any diff in airbox
- any diff in intake runner length/shape
- probably a bunch more

New BMW twins spec out basically the same re bore and stroke, but subtle design differences allow them to build flat twins that range from 100hp (R1200 GS) to 122 hp (R1200S) with other models rated at approximately 110 hp. This is all measured at the crankshaft, not the rear wheel.

I think I'd find the same thing if I pulled up the specs for Triumph's various models using the 955cc triple. Bore and stroke would be the same across all models, but hp would vary considerably between the Tiger, Speed Triple, and the Daytona 955.

raproe · 03-03-2006, 04:55 PM

Quote:

On 2006-03-03 12:50, iandel wrote:
G'day,

Maybe it's the tapered needles. :razz:

Nope, they both have the same NBZT needles. All the carb specs are absolutely identical. Valve timing and overlap are also absolutely identical.

[ This message was edited by: raproe on 2006-03-03 14:59 ]

CYNCRZR · 03-03-2006, 05:10 PM

Having ridden side by side.. my Thrux and a T100 I met along the road, I don't think there is any difference (in a straight line..) Although I did leave 'em when the road got twisty...but I don' t think that had much to do with the bike, just me knowing that particular stretch of road REAL well

WANG · 03-03-2006, 05:20 PM

Quote:

On 2006-03-03 11:53, raproe wrote:
Ask the Triumph marketing department. I doubt that their engineering department can figure it out either.

I'm with raproe on this one. The difference in output between these two bikes is, in all likelyhood, nothing. Then again, Triumph like to play fast and loose with specifications, so anything that they publish should be taken in with some degree of skepticism.

FattRat · 03-03-2006, 05:39 PM

More horsepower means little..... look at the differences in how/where the torque is delivered. Maybe not to the naked eye, but the T100 may actually be quicker from stop-light to stop-light.... i.e. 'torque'.

What differences CAN be seen would be to include the positioning & length of the carb's intake, the length/distance of the header to it's first bend, and the cans. Hasn't it been suggested that the cam's are different too?

But the differences between the T100 & Thruxton are not limited to the engine, consider where else one's money is going when springing for the Thruxton......