Cyclemania Charlotte, NC - DYNO

[Rettic]

Met up with je2wheeler for some lunch and then a ride into Charlotte to swap stories and check out some custom classics at Cyclemania. Last year when I went to Cyclemania (aka Mods vs Rockers) they had a dyno but my clutch was slipping something awful so I decided not to have it run. This year I didn't see any advertisements that they had the dyno, so I went expecting not to run her this year, but I have upgraded to Barnett clutch springs and new friction plates.

Well, they had the dyno One of my friends who rides a Rocket III said if I ran mine, he would run his. It was only 20 bucks to have it tested, so naturally, might as well. The dyno operator was really cool, owned one of these bikes as his first bike and was stoked to run mine.

She puts out 83 hp and 60 lb/ft to the wheel. Running a bit rich (read cloud of black smoke) but still pulled off these numbers. I am really happy, thanks to you guys she runs and rides great, now I know pretty close to stock power and have her almost perfect. The guy running the dyno told me that I may need to go down a main jet size to lean her out a little. Might try that and see if it helps the smoking. Do you guys think leaning out the floats a little more will do it?

Also met a guy who is working on an 11, and is trying to get registered on the site. I already forgot his name, CRS, makes life hard, but je2wheeler has his information. Needless to say, any doubt he had about the 11 was gone after watching my bike on the dyno.

[je2wheeler]

Met up with je2wheeler for some lunch and then a ride into Charlotte to swap stories and check out some custom classics at Cyclemania. Last year when I went to Cyclemania (aka Mods vs Rockers) they had a dyno but my clutch was slipping something awful so I decided not to have it run. This year I didn't see any advertisements that they had the dyno, so I went expecting not to run her this year, but I have upgraded to Barnett clutch springs and new friction plates.

Well, they had the dyno One of my friends who rides a Rocket III said if I ran mine, he would run his. It was only 20 bucks to have it tested, so naturally, might as well. The dyno operator was really cool, owned one of these bikes as his first bike and was stoked to run mine.

She puts out 83 hp and 60 lb/ft to the wheel. Running a bit rich (read cloud of black smoke) but still pulled off these numbers. I am really happy, thanks to you guys she runs and rides great, now I know pretty close to stock power and have her almost perfect. The guy running the dyno told me that I may need to go down a main jet size to lean her out a little. Might try that and see if it helps the smoking. Do you guys think leaning out the floats a little more will do it?

Also met a guy who is working on an 11, and is trying to get registered on the site. I already forgot his name, CRS, makes life hard, but je2wheeler has his information. Needless to say, any doubt he had about the 11 was gone after watching my bike on the dyno.

je2wheeler here - and I spent the day with the futrure XS11 Rider Rettic mentioned, he is an alright guy and will be an asset to the forum once he gets elbow deep into his SX.
His name is Tony Briceno. He did not know just what he had in his to be restored XS11 BUT HE KNOWS NOW.
Please help Tony into the forum.

[TopCatGr58]

Hey guys,

All Tony needs to do is use the CONTACT US link at the bottom of any main forum page, provide his bike info, what username he would like, and I'll get him registered.

T.C.

[jetmechmarty]

Did you guys invite him to XS Southeast? There should be some inspiration there!

[Rettic]

Did you guys invite him to XS Southeast? There should be some inspiration there!

Of course we invited him.

He told us that he did try to contact and never heard back. The digital postal service... Gotta love it.

[Bonz]

Thanks for posting up the dyno chart! Been wanting to see one of an XS1100 on the forum for a long time. Nice flat torque curve, verifies torque is not that much for a 600 lb machine below 3000 rpm, and visually explains the kick from 3000 rpm and above. Also, explains what myself and others have said for years as to why Yamaha geared the XS1100 so short in order to get the 1/4 mile time into the 11's. This engine needs to get above 3K rpm quick and stay there to keep it boiling once it leaves the line.

[Eveready1100]

Bonz, here's another one for your viewing pleasure....

[IMG][/IMG]

[IMG][/IMG]

[IMG][/IMG]

Wish they were mine, but they're not.

Here's a clue........ Taken at a previous event.



^ Click on pic to watch. Enjoy!

[Bonz]

107 hp and 73 ft/lb is square in line with my 1997 Bandit 1200S that I jetted and drilled out the stock airbox when running a Kerker slip-on.

The only difference I saw in the dyno notes was the jetting? Seems like a lot of power to gain from the base run with just changing jets given what looks like the same cams, big bore, port job and larger carbs for each run?

My old gen 1 iPad doesn't do you tube videos anymore, you tune doesn't support it, so who was the person running that bike?

[motoman]

Howard, what Eveready1100 posted was FIRST posted here many yrs. back, from that person that used to be a participating member here.

[Bonz]

I had not seen that dyno chart before, is this one of those "banished" things?

[IanDMacDonald]

I had not seen that dyno chart before, is this one of those "banished" things?

I'm not familiar with regard to Bryan being a banned member on here or not. His username is AussiXS11G or something of the sort. I really love his bike. He's active on the Aussie and UK forum. Great guy to chat with. Very informative.

[Bonz]

An uncle of mine has a new CB1100, the bike has about 83 Hp and 64 ft/lbs at the rear wheel. The main difference in power curves between the CB and the XS is the CB torque comes on a lot lower in the rpm range effectively filling that pre-3000 rpm hole the XS has, and really only has a few ft/lbs advantage the rest of the way once both torque curves flatten out all the way to the top end. the CB's torque curve (when comparing to the same numbers on the XS curve) goes from 1700-7100 rpm, the XS from 3000-7200 rpm. As well, the CB has a 50 lb less weight advantage.

Interesting how the CB is marketed as a gentlemens bike, with the nostalgia factor and the XS was a no-holds barred flame-thrower on wheels. Considering Yamaha was 35 years it's senior, they did pretty well with two-valve heads and carbs.

[motoman]

An uncle of mine has a new CB1100, the bike has about 83 Hp and 64 ft/lbs at the rear wheel. The main difference in power curves between the CB and the XS is the CB torque comes on a lot lower in the rpm range effectively filling that pre-3000 rpm hole the XS has, and really only has a few ft/lbs advantage the rest of the way once both torque curves flatten out all the way to the top end. the CB's torque curve (when comparing to the same numbers on the XS curve) goes from 1700-7100 rpm, the XS from 3000-7200 rpm. As well, the CB has a 50 lb less weight advantage.

Interesting how the CB is marketed as a gentlemens bike, with the nostalgia factor and the XS was a no-holds barred flame-thrower on wheels. Considering Yamaha was 35 years it's senior, they did pretty well with two-valve heads and carbs.

.....and part of reason GM went back to that configuration.