Triumphrat

mrcheese · 05-15-2006

what are the differences between all the engine types i.e t100, t140 and so on.

GrandPaulZ · 05-15-2006

Basically the cc displacement and the number of carbs.

2-cylinder
T100 = 500cc, single and dual carb models
T110 = 650cc, single carb
T120 = 650cc, dual carb
TR6 = 650cc, single carb
T140 = 750cc, dual carb
TR7 = 750cc, single carb

3-cylinder
T150 = 750cc, three carbs
T160 = 750cc, three carbs, electric start

mrcheese · 05-15-2006

which is felt to be the best single or double carb

KADUTZ · 05-15-2006

the one you own is ALWAYS the best!

mrcheese · 05-16-2006

a man which gives the best two or one, i would suspect individual jets to each pot would work the best, Asking because i am thinking about buying an old bonnie as my next bike. i need to be sold on the idea. And which one.

DAGAD · 05-16-2006

For me, a good starting place would be, mid to late 70s' TR7RV Tiger. Well engineered, easy to get parts, l/h gear change, single carb and not too expensive for a decent ride.
Roy.

GrandPaulZ · 05-16-2006

On the 650 engine, the single carb bikes lacked ALMOST nothing against the dual-carb Bonnies.

On the 500, I think there is a bit more difference.

Still, the Bonnie is the more desireable bike to have as evidenced by the pricetags. (Bonnies ALWAYS cost more).

The dual carb setups are a bit more fiddly to balance & tune perfectly than a single carb.

CarlS · 05-16-2006

Quote:

On 2006-05-16 00:34, GrandPaulZ wrote:
On the 650 engine, the single carb bikes lacked ALMOST nothing against the dual-carb Bonnies.

On the 500, I think there is a bit more difference.

Still, the Bonnie is the more desirable bike to have as evidenced by the price tags. (Bonnies ALWAYS cost more).

The dual carb setups are a bit more fiddly to balance & tune perfectly than a single carb.

I agree with GP's assessment. For me, I prefer the simplicity of the single card. I felt the same way back in the '60's when I owned and rode both. The TR6 required far less fiddling with. There was very little performance difference in the two.

panda · 05-16-2006

Quote:

On 2006-05-16 00:34, GrandPaulZ wrote:
On the 650 engine, the single carb bikes lacked ALMOST nothing against the dual-carb Bonnies.

On the 500, I think there is a bit more difference.

you are so right there. I had a 500 5ta witha a single 7/8ths carb It would do about 90mph and 55-65mpg. I put t100 ss bits in it and some. that included a pair of 1 1/8 Wal phillips fuel injectors.. a sort of simple carb that just poured fuel in, even with no venturi depression. this set up produce 42 hp. no idea as to mpg. but it was -fast-. alas i had to refit the distributer which left no room for teh injectors so i just put the old original single carb back on together with the original cams. It ran well and would rev high, but did not have the punch in top as before ( running 20 tooth gearbox sprocket) would wind up the speed downhill though. curious thing was, from then on it would d o close on 100mpg

. It was becaus eof this I later bough a 1970 TR6 . best bike ever. I still regret selling it and wish I still had it. But cant compare it to a bonnie as I have never ridden one

Much is often said about which bike is fastest, and fussing over afew bhp. In truth the fastest bike is usually the one ridden by the bravest rider. What many havent realised is that with the speed restrictions nowadays, range can have a bigger impact on speed over the ground than any other factor. When I had my old Triumphs, in the uk at least, once you were outside city limits, there were no speed limits. No national 70 mph like today, and no radar guns either. If they wanted to book you they had to catch you

Sometimes they would do that by trickery or just plain lying

mrcheese · 05-16-2006

thank you for all the replies. I have got some definate insight in to what im looking at. I am keen to build myself an old period style bobber. I have been keen for a long time to build it. Body style is not a worry, the power that she gives will be of interest, thaks again