T3 520 chain conversion kit (looking for)

[tritonwow]

I have a Daytona 1200 and have been trying to source such a kit. Anyone with the knowledge or experience?
Thanks!

[trypcil]

Why, may I ask?

[tritonwow]

My chain needs replacing so I was looking at:
1. 520 and alternate sprokets for the weight savings. The whole rotating mass business. Without much deeper analysis I believe that type conversion is touted to free up (not increase) a couple of HP.
2. alternate sprockets for gearing change. It's a road bike which sees predominately town driving. I was looking into different sprocket ratios for snappier "off the line". I can't cruise at 75mph around here.
3. The bike is in bits so I'm trying to address other repairs while I wait for parts.

Now to highjack my own thread... I was looking at making a carbon fiber air box (copy of the original). I've also thought about a clear "Lexan" type box (with the same cc as the original) to fit around the individual K&N airfilters). My main goal as I work through this in my head is:
1. Reproducable in small quantities.
2. Snap in replacement into the existing intake tract.

My biggest problem is I hit the road again real soon so I won't be able to work on the bike for a few months (SWMBO loves it when I occupy all the garage space...then leave!)

[ervdrvr1]

Well, you could go with a 17/45 set up that should work fine. I don't think you really want to go with a 520, unless you want to replace every few thou miles(if the chain doesn't snap first, wrap around the counter shaft and tear up VERY expensive bits). The 1200 has too much HP and torque for a 520 to be reliable. That, and I don't think you would even notice the lb and a half of weight savings.
My 2.5 cents worth.

Erv
Deep in the Heart of Texas!!

[Buckwheat]

I've been wondering about the possibility of a 520 conversion also.

In lieu of arguing the reasons for such a conversion, any mention of a source would be appreciated.

Thanks,

[trypcil]

Whatever you do, when you put on that new chain - rivet it to join, throw the clip link away - it's a liability, use of will cost you dearly, possibly your engine! Stock, mine (s3) came with a clip link and dumped the chain as I speed away from a green light after 6k miles! The engine is torquey and will even dump the chain on a down shift if you use a clip link. I'd left my bike at LA Triumph(back in 1998) to do a valve service, some suspension work, a new chain (with emphasis on the Rivet) and tyres. Six weeks later I took possession of the bike(away working) again and in 75 miles dumped the chain on a decaccel-down shift brake into a corner and shattered the primary drive/oil filler case to pieces, dumping all the oil out! Methinks that a 520 mighten stand the torque affect that this engine delivers - staying with the 530 might be prudent! Sprocket changes are great - 17/43 is stock for a 95 S3, 17/45 is great for wheelies and the such like - but 18/43 is worth considering. Gives you a top speed of about 144 mph, @7k you're at the ton in 6th.! I find the torque spread of these engine 5k - 8.5k rpm is better used with that ratio - but that's me and where I ride - highways and canyons!

[Buckwheat]

Agreed on the rivet. That's what i put on with the current 530 15K ago. (it's still fine for now...)

Been thinking that if AMA can run with 520's then so can I. I know they probably change 'em after every race weekend, but I'm not running 150 horsepower either. Yea it's not gonna last as long as a 530, but I'm hoping to find out if anyone is realizing more HP and snap from the lighter reciprocating chain weight alone.

Now regarding sprockets, where to find 'em other than the dealer in different sizes? (520 & 530)

Thanks.

[trypcil]

Custom, good luck and keep us posted!

[sailfish]

Here are some charts to look at regarding 520 vs 530 chains. The plate thickness could be a big deal. Will you really notice 1.3 less pounds so close to the center of rotation? A non-o-ring chain might free up more horsepower.

http://www.didchain.com/specs.htm

[Buckwheat]

I'll give this thread more time to reveal more info. I find it hard to believe that nobody has run a 520 or 525 chain yet. Maybe the sprockets are not available for these bikes (96 S3)

What about the S3 Challenge series? Did they try it or were they limited to standard equipment (530 chains)?

I would not consider a non-Oring chain for S3 road use. RK 520 O-ring versions are now rated up to 8800 Lbs tensile strength.