XR-1200 Engine Performance Mods

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#21

06-09-2011, 01:51 PM

grbrown

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Quote:

Originally Posted by Gpsjr10

There has been an XR circuit in Europe for a while now and it seems that they perform very well (with the proper mods and set-up).

Here you go!

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#22

06-10-2011, 04:07 AM

xr1200nl

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Quote:

Originally Posted by Captain Chaos

Yup, Buell XB; 10-15hp more out of the box, 125+ lb lighter, better suspension, better brakes, sharper handling, 15-20mph faster on the top end, ect, ect.... The XR was a HUGE step backwards as far as a sport standard goes from the XB. Of course, the XR has "heritage".

If you're looking for a sporty standard the XR is very nearly the worst performing one out there. I hope you're prepared to spend a LOT of cash to bring it up to par with the rest of the field and even more to make it run with your sportbike pals (unless they can't ride for crap, then you have a fighting chance).

a standard XB12 2008 model and a standard XR1200 2008 model, perform the same as they come out of the factory.

The tuning for both biokes cost the same and the power gain is also the same (-:

I can say this because my daily job is tuning Buell and Sportster models only since 2007.

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#23

11-29-2011, 12:37 AM

xr1200nl

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XR1200-XR1200X new Airbox

Development of a new airbox for the XR1200-XR1200X: http://www.twinmotorcycles.nl/artike...?cid=5&aid=186

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#24

04-04-2012, 09:27 PM

Snarvol

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XR Gearing...

There is a rumer going around that the XR1200 has 883 gearing. Note below from The Motor Co.
Also, I keep hearing the stealership and others claiming 90 HP from the stock US XR. Dyno curves on XR1200ownersgroup.com mostly show 75HP give or take a horse or 2. 90+ HP can be done with intake and exhaust mods, the best of which are said to be from Twin Motorcycles (.nl) in the Neatherlands. FYI...

Drivetrain:2012 XR1200X
Primary Drive Chain, 57/34 ratio
Final Drive Belt, 68/28 ratio
Clutch Multi-plate, wet
Transmission 5-speed
Gear Ratios (overall): U.S.
- 1st 10.782
- 2nd 7.702
- 3rd 5.728
- 4th 4.748
- 5th 4.071

Drivetrain, 2012 883
Primary Drive Chain, 57/34 ratio
Final Drive Belt, 68/29 ratio
Clutch Multi-plate, wet
Transmission 5-speed
Gear Ratios (overall): U.S.
- 1st 10.407
- 2nd 7.436
- 3rd 5.53
- 4th 4.583
- 5th 3.93

Drivetrain, 2012 1200C
Primary Drive Chain, 57/38 ratio
Final Drive Belt, 68/29 ratio
Clutch Multi-plate, wet
Transmission 5-speed
Gear Ratios (overall): U.S.
- 1st 9.315
- 2nd 6.653
- 3rd 4.948
- 4th 4.102
- 5th 3.517

Last edited by Snarvol; 04-04-2012 at 09:43 PM.

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#25

04-05-2012, 08:43 AM

grbrown

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In my 2011 owners manual the XR does indeed have identical gearing to 883 models, at 4.071:1, except in Japan.

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#26

04-05-2012, 01:06 PM

rickss69

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This one not set up for canyon carving, but if it were think of the possibilities...

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#27

04-05-2012, 04:45 PM

lh4x4

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Vance and Hynes makes a complete race kit for the XR at about $3,600. But for street use you could get by with their tuner and exhaust system.

The motor is essentially the Buell XB12 engine which makes 103 at the crank. the XR makes 90 at the crank because HD just did not engineer the air intake any where near as good as Buell so it is starved for more air.

HD also has the XR at about 100 lbs heavier than the Buell. To bad HD does not make Eric Buell the head of developing HD bikes.

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#28

04-12-2012, 02:13 AM

xr1200nl

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They have the new exhaust and upgrade exhaust products ready and online:

Twin Motorcycles
We have all our New Torque Hammer II exhaust combo Products online now The development can be found here:

http://www.twinmotorcycles.nl/artike...?cid=5&aid=186

- For the current XR1200 and XR1200X riders with our Torque Hammer full 2-1 exhaust system, we made a upgrade kit to upgrade to the new system:

http://www.twinmotorcycles.nl/websho..._race_exhaust_

- And here is the Upgrade Kit for the current Torque Hammer rider to our E-mark system:http://www.twinmotorcycles.nl/websho...-MARK_exhaust_

- And the Upgrade for the current XR1200 owners to our stage 1 upgrade KIT:http://www.twinmotorcycles.nl/websho...TM_stage_1_KIT

- The Upgrade Kit to stage 1 with airbox: http://www.twinmotorcycles.nl/websho...rent_TH_owners

- E-MARK Slipon only as a upgrade for Race system customers:http://www.twinmotorcycles.nl/websho...k_Muffler_only

- Race Slipon only as a upgrade for E-Mark system customers:http://www.twinmotorcycles.nl/websho...e_exhaust_only

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#29

06-04-2012, 02:18 AM

xr1200nl

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The first Harley Tuningshop that achieved 100 RWHP on a stock engine no other modifications then exhaust, airbox and ecm tuning with the Twin Motorcycles Stage 1 Kit http://www.twinmotorcycles.nl/artike...?cid=5&aid=223

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