100 ft lbs to the tire. Under 1200cc’s

[outthere]

Compared to stock XB with bolt on's what cost per ft - lb? Lot's of torgue @ 4000 revs might be nice on a track bike but oh my tire wear went right out the back.

 

[mike lowary]

This is definitely a ball park rough estimate. I think 3 grand would get you just the parts needed to for an 1170 build. i have way more money in my build but for the sake of the question we'll go with 3 grand. My bike dynoed at 65 wheel tq with k&n, open airbox and jardine exhaust right after i first bought it. IF i was to hit the 100 wheel tq mark on this motor it would be about 35 ft lb increase. Around 85$ per wheel torque. As you can see this is not a great bang for the buck deal. Yes you get waaay more bang but you have to pay to play.

 

[mike lowary]

full done 1050 with NO labor is about $3500. that includes header, tb, exhaust, air box lid etc. Add another $1500 to that for the 1170. and thats with no crank work.

 

[Cooter]

If everyone made good financial decisions, there'd be no racing.
Should be a sticker.

LOL.

Even in these days of seemingly effortless HP, building an NA engine is still quite the art form. I commend the people that can and do.:up: 'Murica

 

[34nineteen]

Man it's gonna be CLOSE. Friend of mine built this XB a couple months back:
View attachment 13341
View attachment 13342

Just barely eclipses 100lb/ft. It is a 1275 kit but I really don't remember him doing anything extravagant to it. Nothing one-off custom for sure. Lots and lots of tuning.

Lots of them seem to live in the 80's unless there is a lot of work done.

Kind of like Cooter.

 

[outthere]

Now wondering what those numbers would be if it was a big bore XB12.

 

[34nineteen]

This is definitely a ball park rough estimate. I think 3 grand would get you just the parts needed to for an 1170 build. i have way more money in my build but for the sake of the question we'll go with 3 grand. My bike dynoed at 65 wheel tq with k&n, open airbox and jardine exhaust right after i first bought it. IF i was to hit the 100 wheel tq mark on this motor it would be about 35 ft lb increase. Around 85$ per wheel torque. As you can see this is not a great bang for the buck deal. Yes you get waaay more bang but you have to pay to play.

The issue is that you are already starting with a pretty hot rodded out motor.

If you were starting with a stock 883, there would be a LOT more payback.

 

[mike lowary]

Exactly. Well said my friend

 

[mike lowary]

Now wondering what those numbers would be if it was a big bore XB12.

Same modifications I have but starting with a 12 motor would get 88”. Peak torque would be higher. Redline would be lower obviously. Peak horsepower I’m not sure. I think it would be close but the 9 motor would probably get more peak hp because of rpms. Riding both bikes back to back with said motors would be completely different feelings.

 

[mike lowary]

The 12 would feel like you could pull a house down. The 9 would feel like the power band never stops.

 

[34nineteen]

The 12 would feel like you could pull a house down. The 9 would feel like the power band never stops.

I know... and that is going to be what makes it rad to the bone. Make sure to leave all the XB9S badging on it also.

 

[mike lowary]

Absolutely. I’m very proud of my almost 1 year bike. That being said. Does anyone own or have seen in person an 04 xb9s? I’ve only seen the 03s and all the xb9sx’s. Which I think is 05 and up.

 

[outthere]

I don't know why 'I'm' asking questions about a souped up engine. Can't use what I have at the track now. Move on, I'm enjoying your progress.

 

[mike lowary]

I don't know why 'I'm' asking questions about a souped up engine. Can't use what I have at the track now. Move on, I'm enjoying your progress.

What do you have?

 

[Cooter]

Don't let outthere fool ya, he's fast as heck and has the pics to prove it... and FWIW, I'm with 34:19, leave on the 9 badging, keep the quietest muffler you can, and go make some money street racing it

If I ever stop light race, I make it a point to tell them it's a 600. Afterwards. When they finally catch up.

Allegedly

 

[mike lowary]

Don't let outthere fool ya, he's fast as heck and has the pics to prove it... and FWIW, I'm with 34:19, leave on the 9 badging, keep the quietest muffler you can, and go make some money street racing it

If I ever stop light race, I make it a point to tell them it's a 600. Afterwards. When they finally catch up.

Allegedly

Lol. I hear ya. I will say that I’ve been riding the new bike around and I’m really liking the way the buell race exhaust sounds. Much quieter than the jardine and sounds tits. Gonna be hard not to put that on the 1170 motor.

 

[mike lowary]

That being said. Most people haven’t heard a carbon jardine at 8k rpms. It sounds crazy. Screams like a banshee. Jardines get a lot of flak. Tuned rite they are awesome. I’m so amped to get this motor back. Nonstop day dreaming

 

[34nineteen]

I had a Jardine on my old XB9SX. I thought it sounded great. I've heard 9's are easier on them than 12's.

Check this out

https://www.ebay.com/itm/BUELL-MUFF...871318?hash=item1a963f28d6:g:aooAAOSwvxBemJwF

 

[mike lowary]

I had a Jardine on my old XB9SX. I thought it sounded great. I've heard 9's are easier on them than 12's.

Check this out

https://www.ebay.com/itm/BUELL-MUFF...871318?hash=item1a963f28d6:g:aooAAOSwvxBemJwF

That’s a cool idea. Looks like ray charles welded it with his feet though....

 

[outthere]

Get a Deans. Nice sound, quiet & won't fall apart. Great on the bottom with lot's of over rev.