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Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

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Old 01-20-2011, 02:11 PM   #1 (permalink)
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1000cc big bore kit for T150 Trident ?

Has anyone fitted this to their Trident and is it worth the time and expense ? What does it do to performance and do brakes and suspension need upgrading ? I'm not mechanically competent so would need a professional rebuild hence major investment. I have modern Triumphs for performance and have just bought the T150 for the classic experience,so is it best leaving well alone ?
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Old 01-20-2011, 02:54 PM   #2 (permalink)
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T150 big-bore

RickR on Triplesonline just put the TriplesRule kit on his and had Acme Machine in Ft Collins do the work. We haven't ridden yet. I put a MAP 800cc kit on my 73 TR7 and am very pleased with that and would lean toward one of their triple kits. I would also inquire on Triplesonline, as most upgrades have been done by someone there. I personally would lean toward the smaller big-bore without stroking the crank and machining the cases. Bob
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Old 01-20-2011, 11:06 PM   #3 (permalink)
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Big D in Dallas built one up in a Rob North frame for a customer. I'd call them.

http://www.bigdcycle.com/stroker.html
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Old 01-20-2011, 11:21 PM   #4 (permalink)
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I don`t have any experiece at all with Triumph triples let alone triple big bore kits,but I have seen the trouble people get into when they get carried away with big bore kits that stress engine cases and cylinder head bolts to their limits,not to mention transmissions.

I would take Coloradobob`s advice and settle for his recommendation.

Good luck up on triple creek!
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Old 01-21-2011, 02:25 AM   #5 (permalink)
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back in the 1980s my mate had a norman hide 1000cc kit fittered to a t160,,that thing was fast nothing came close to him on that bike....it sat at120mph all day ,back then we were doing big miles all over australia,he did blow the middle piston a few times but as i say we were doing big long rides.. i had a 900 ducati at that time and he was much faster than me.. albert the tiprat
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Old 01-21-2011, 03:11 AM   #6 (permalink)
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.........and what more could I possibly ad to the statement made by a direct witness ,and I quote:

"he did blow the middle piston a few times",

your honour,I rest my case.
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Old 01-21-2011, 10:36 AM   #7 (permalink)
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Quote:
Originally Posted by tip rat View Post
back in the 1980s my mate had a norman hide 1000cc kit fittered to a t160,,that thing was fast nothing came close to him on that bike....it sat at120mph all day ,back then we were doing big miles all over australia,he did blow the middle piston a few times but as i say we were doing big long rides.. i had a 900 ducati at that time and he was much faster than me.. albert the tiprat
Back in the 1980s my mate also had a T160, standard except for a Piper 3 into 1 race pipe and jet kit this bike sounded incredible and went like clappers but, you guessed, it melted middle pistons for fun,
Bill.
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Old 01-21-2011, 10:11 PM   #8 (permalink)
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big bore kit

I neglected to mention the design-it-yourself option. Get bigger liners from LASleeve and Wiseco pistons to match. Have your cylinders bored to accept the bigger liners and have them pressed in. I've been waiting for 2 years for my buddies to finish their big-bore conversions. Jeff's has been done but he needs to tune it to idle. Hopefully we'll ride this summer. The Norman Hyde 831cc conversion is the tried and true one. But for the expense and trouble, I'd go for bigger power gains. It's a good kit for when your barrels are on their last rebore. One major benefit, is more torque and the ability to fit a 20-tooth sprocket and lower engine speeds, which I did with the standard bore. This is a major benefit in my area, with highway speeds commonly 80mph and interstate speeds 85mph in the fast lane. For a true 1000cc and a longer stroke, you get BIG torque gains at considerable expense. This will not increase durability. Enjoy the HOWL of the 750cc. It's as sweet as it gets. If you go for the big-bore you will need the better brakes. Then your skinny tires will hold you back. Rear tire options are very limited in a 19" tire. Almost all 19" tires are front tires, a few are universal (both). You can lace in an 18" wheel and go to a 130 to keep a similar diameter. You can shim the engine over to get the chain to clear the wider tire. Bob
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Old 01-22-2011, 11:55 AM   #9 (permalink)
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Thumbs down

Thanks for all the advice,I'm now thinking keep stock 750cc,after all I have a 955i Speed triple for speed and power so using the T150 as designed by the factory is clearly the sensible option.
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