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Bonneville Aug 2010 TM set 2 world speed records

18-12-2013 - updated 04-09-2010. We set 2 world speedrecords at Bonneville with 3 different model Buells in August 2010. Because it is speed, what we need (-: BuB only runs motorcycles and they're under AMA and FIM rules.

Twin Motorcycles will be closed from the 20th of August 2010 till the

12th of September 2010 to try to set a speedrecord attempt.

We will do this together with Glendale Harley Davidson in California USA.

In the first week from the 20th of August Dris will dyno 3 Buell Motorcycles at Glendale HD.

1. Buell XBRR (special engine build). The XBRR is running in the APS-PF 1350cc

class, APS-PF is special construction partial streamline pushrod engine fuel.


2. Big bore XB9 (special engine build). The XB9 is running in the APS-PF 1000cc class


3. 1125R (special cams and pistons). The 1125R is running in the AG 1350 class.....

special construction / gas. All 3 Buells will go for a speed record attempt in a different class.


Pictures of the XBRR. The XBRR is running in the APS-PF 1350cc class, APS-PF

is special construction partial streamline pushrod engine fuel.



All engines are a special build by Glendale HD for speed purpose and

Twin Motorcycles will make the fuel maps foit and help with the maintenance at

the Speedweek. We will fine-tune the bikes at the salts to see what speed we can achieve.

Enthusiastic Buell riders are welcome. Because this is our first Bonneville experience,

we know we have a lot to learn, but if you don't try, you won't succeed (-:

I just finished testing stuff for the 1125R for Bonneville, these parts will also become

available for street use. The stacks will be available at the end of September.

They were made by my friend Pasi from Finland. The 1125R has special pistons and cams, that will become available also later this year. I just finished intensive testing for the intake stacks on a 2009 1125 CR Buell.




In the graph below, you see a 1125CR 2009 model with a Jardine slip-on, K&N airfilter and our tune:

It makes 139.4 HP and 110 NM of Torque, this was a difficult exhaust to tune right.




Because we tested 4 different intake lengths, I only will show the longest and the final version.

Important are the following notes. Same bike, same day, same gasoline, same dyno tuner, same engine temperature.

Below is a graph with the longest stack we developed, it made 134.4 HP and 113NM of Torque.

So we lost about 5 HP and gained 3 NM of Torque.



Then we opened up the air box with the K&N filter, left the K&N filter in place and made a run with

a open air box. The results were: 137.1 HP and 117 NM, so we gained 2.7 HP and 7 NM of Torque.

Look below:



Then the final version. It made 139.9 HP and 114 NM of Torque.

So we gained 0.5 HP and 4 NM of Torque, look at the results down in the graph,

compared with stock tune.



Then we tested the final version with a open airbox and also left the K&N filter in place,

only took the cover and inside cover off. The results were 141.6 HP and 115 NM of Torque.

So we gained 2.2 HP and 5 NM of Torque, look down for results.



Below is a result with the longest stack we tested and with the final version in a open air box situation.


After all the dyno testing, we made a final choice for the stack height and take them

in production. We will also use these at Bonneville, because we need a lot of HP and Top Speed. For people ,who race, this is real cheap Top end HP and Torque. They will be available

in September as  part in our shop exclusively.


update 12-8-2010

Stack's for Bonneville are ready and for sale.


Update 22-08-2010

After a long flight with KLM, we arrived in beautiful California.

Picked up our rental car and drove off to Glendale HD to meet up with Don.





It is really nice over  here. We started with getting everything working for the dyno the way

we liked it. The Buell XB9R was already on the dyno,  so we started checking stuff and

started dynoing the XB9R first.



We first needed to get the Dynojet dyno running properly with 2 wide band sensors.

So Dris started tuning  and we started  to do the last  preparation for the Buell 1125R and the

Buell XBRR, before we put them on the dyno.



And it is always (see picture below) nice to see our own developed products in a

world record speed attempt.



After some testing and different dyno runs, we decided that we take the XB9R off the dyno

to change some things. As you can see below we have long and busy days with friends wrenching.

I am lucky Martin is also here to take care of everything besides dynoing, Martin thanks for that (-:



So the 2008 Buell 1125R was ready and we put her on the Dyno. After some runs and

getting Idle and a lot of other stuff right, I made the first WOT run and gained 155 rear wheel

horse power SAE corrected on the Dynojet Dyno and there is still room for some more  :-) 

More to come, stay tuned.


Update 22-8-2010

Okay, I finished tuning the 1125R 2008 model today, with our pistons, cams, intake stacks

and Fuelmap. It makes on a Dynojet Dyno in de USA SAE AT THE REAR WHEEL corrected

161 HP and 92 ft/lb (125 NM of Torque). Look down for the graph.  THIS IS DONE WITH


The problem was that the Dynojet Dyno has a limit of 222 Mile per hour, it braked and all red lights in the screen hahahahahaha, that is 357 km per hour. Shitty Dyno that Dynojet Dyno (-:

I make that in 4th gear, so we were not able to see how much top speed the bike could make. Oh, well that's what the people at Bonneville will measure for us.


Update 24-08-2010

XB9R update. Because of some engine noise, we decided to pull her engine apart.

Good thing that we did, the crank had some small connecting rod play, and the valves

already hit the pistons.



Okay, where to find some rods and bearings..

Luckily we had a little help from the crank wizard of SOCAL, who brought us a new one.

Thanks Will. The XB9R engine was closed again and the bike rebuild, and now she is ready

again for Dris to do his magic on the dyno. 



When we pushed the 1125R back from the dyno to the work shop, I noticed there was

something dragging.. first thought brakes sticking or rear wheel bearings where gone ..

Nope the 1125R did chew her transmission , Damn Don made some calls and luckily

Buell Racing still had some transmissions in stock,  should be here today.

Thanks Michael from Buell Motorcycles Todays  job would be pulling out the 1125R engine

and taking it apart..

XBRR ready for the dyno

Update 24-8-2010

We got the XB9R fired up again after replacing the engine and checked everything twice and she

runs way better now  and gave her to Dris to complete the tuning.

I pulled out the 1125R motor and completely took it apart to find the binding gear.

Box of goodies from Erik Buell Racing


Mainshaft and the suspected 5th gear looked okay, the 5th gear was still the old type so it was a

good thing we opened up the engine and we replaced it anyway.


Engine out and on the work bench


We did find a piece of plastic that was being chewed trough the gears, we still are puzzeling

were that piece was coming from and how it ended up in the engine, all shields,  guards, 

guides and plastic gears were okay.


The above plastic pieces were binding the mainshaft


We're putting the 1125R engine back together, everything looked fine. This baby is going

to scream on the salt.


Cases ready for the crank to go in


Very heavy duty connecting rods and bolts.


The XB9R is almost ready on the dyno. we achieved 88 HP and 68 ft/lb not bad for 1000 CC.
We were able to let her make 180 miles per hour. So hopefully she will be able to run fast enough.


Update 26-08-2010


Okay the XBRR is ready voor Bonneville, I achieved 147. 45 HP and 140.36 NM of Torque SAE corrected.


And the XB9R is ready:  88.44 HP and 92.80 NM of Torque SAE corrected.



Be aware that this is 1000 CC.

We have no time otherwise we would be able to let her make more power. We are packing all our stuff and go to sleep. Tomorrow morning early we leave for Bonneville.

It is possible that there is no news a few days. Stay tuned I update through Facebook and Twitter. 






Update 28-08-2010

After a hot and long 16 hours drive through some very nice spots in California and Nevada, we arrived.

On the road

Nevada long roads

We reached the Salt, the first views are breathtaking, incredible how far you can see and there is a whole lot of nothing there.

 We got our pit area up. We needed tents to stay in the shade and don’t overcook ourselves.

Our driver is also in the lokal news paper:


A lot off sun overhere


Did our last checks to the bike and run the bikes up for registration and  technical inspection, which they passed without any problem.

Waiting game for tech


The salt conditions are good, still a little wet, but the wind picked up in the afternoon and this will help the Salt to dry really fast.

Tomorrow morning  the speed trails will start and the waiting game will start.

Did I tell you it's hot out here?


300 riders will start with the short  “5 mile mountain course”. After the first run the fast bikes will go to the long course, we need to let 2 riders pass for the test (fingers crossed).

Rachel, being the rookie, first has to go trough the briefing and run over the track to see where she is going and get a better feeling and understanding.

Rachael learing how to safetywire

Because the Salt Lake is so big you really get disorientated and you can get lost there. So a test run over the track to get a good focus point where to aim for while driving, is very helpfull.


new numbers on the bike

Tomorrow more news and pictures.

Update 29-08-2010





2. Pictures of the Big bore XB9. The XB9 is running in the APS-PF 1000cc class.




3.  Pictures of the Buell 1125R. The 1125R is running in the AG 1350 class.....special construction / gas.



The salt is really more difficult than we first thought. Our dragrace and road race experience will help us to understand this, but we have a lot to learn. After 1 day at the Salts, we focused on the XB9R and the XBRR. We have the XB9R stable and our driver (girl) Rachel is getting stable.

Mug shot from the drivers


Rachel did her first run 125 miles per hour, her first run ever on the Salt (Mind you, she did get her motorcycle drivers license only last December !).

Dris coaching Rachael

Second run was 141 miles per hour and getting more stable. The 141 was enough for a record, so we made the return run. We had a very bad wind 14 MPH in the front.

Rachel on her 141 mph run


She was leaning all the way to get the bike straight and still went 133 miles per hour. Way the go Rachel! The record is set at 137 miles per hour.

What happens is, that the average the 2 times from the front and return run and that is the average record time.

Camouflage leathers


Richard is driving the XBRR. He is a experienced Salt driver with 5 years Salt experience.

Richard back from his first run


His first run was already a record time. 166 miles per hour, the old record was 165 miles per hour.

After a record run the engine has to be sealed by the tech's


He was learning how the bike was going, not bad at all. His second run, he did 168 miles per hour. The current record is set at 167 miles per hour.

There is still speed, RPM and potential in the XBRR.

Rachel prepping for the second run


We are now focused on the 1125R. The swing arm was lengthened a lot and that made the bike very instable and impossible to open the throttle.

 It was spinning the whole bike to the left and rear. Yesterday evening we took the weight off the bike, brought the rear wheel back to his original position and started all over again.

Just to see how it handles the power.

Debriefing by Andi

Don prepping the 1125R to get more stable

The Buell Brothers and Sisters pit

The XBRR from NRHS


Update 29-08-2010

Tonight in our hotel we heard it rain very hard and the one thing you don’t want, is rain.

We were not permitted to the salt flats, because there was too much water on the salt.

Wet spots on the salt


After 10.00 in the morning, we could get to our pits and we started working on our bikes , it dried up good and fast.

We fitted the data logging system on our Buell XB9R and gave a little run over,  we could hear that she was running rich,

but we needed to analyze the data to see how much we needed to adjust the fuel.

Bikes lined up in pre stage


On the 1125R we changed a lot. We have an unexperienced driver and a very difficult and hard to handle bike with a lot of power. We shortened the wheelbase back to the original length and for the first time set the suspension up.

We started playing with the tire pressure and asked the driver to take her for a spin, just to check if we were going the right way, get more stability in the bike.

It felt a lot better right away. So with all the changes we were on the right track. We made some more changes and now he felt he could launch the bike for the first time.

The track dried out good and runs were started at 15.00. Both Rachel and Andi were lined up.

Line up at the 3 mile marker on the long course


And both made their first run of the day on the long course starting at the 3 mile marker.

Rachel did very good again and made an 141.6 mph run, faster than she ever did go.  Andi shake down run felt also very good, bike handled so much better,

only the speed was not what we expected it to be.

Rachel did not get the back time she needed for her run. So no upgrade for her personal record yet, but the Buell XB9R has the potential to go much faster.

Rachel ready to start


Andi at the starting point


We checked the bikes and lined them up for their second run of the day, but we ran out of time and the track was closed for the day.

Early mornings at the salt


The weather conditions for tomorrow looked promissing, the XB9R and the 1125R are lined up as first to go, to get some runs today.


Rachel on speed


Update 30-08-2010

Very early 05.30, we went out to the salt flats. Rachel and Andi are the first to line up.

So the pit was set up and drivers got themselves ready to go out,  we checked the bikes and the data logger was mounted on the XB9R, so Dris could check the changes he

made to the fueling.

Our little record breaker, we're proud of her


We programmed the 3 bikes for this altitude, but a little on the save side, because we had no experience with the salt, the fuel, the conditions with the humidity and barometric pressure. The 3 bikes were running  a little rich, but better that than way too lean. Understanding the conditions on the Salt Flats is not an easy thing to do.

You need to spend a lot of time to understand what’s happening.

Andi back from his run


We tried to let Rachel shift a little lower in the rpm range, just to see if that would give her some more speed and if the bikes was able to do that with the gearing.

That did not work very well, because she shifted back to 4th gear to keep the power up. The gearing choice was maybe not the right one.

Andi finally got some speed in the 1125. That bike is a real mean bitch to ride, so much power to get to the salt  and the rear wheel slips about all the time and when really giving

full throttle, it feels like a rolling burn out all the way. 140 mph was all he could get out of it.

We started experimenting to get more grip on the rear wheel,  we dropped the gearing down to make the bike pull a little less hard, lowered the rear tire pressure even more,

looked again to the suspension. After everything was done, both riders lined up for their second run of the day , this was going to be a long wait.

Richard took the XBRR out to see if we could improve the record a little more than he did the day before.

Richard was flying again to just get a little more


The first run was 171 mph… that bike is flying with wheel spin all the way. We went back to impound, to let the technical people inspect the bike and get their approval

for the return run.

To make it an official record nothing on the bike is allowed to be changed, only fuel and repairs can be done under supervision by a technical inspector.

He was ready to go to the line up at the other end of the track for the return run. He was able to do that with an 167mph run.

That was all he could push out of that bike with a lot of wheel spin in all gears. We were going to try and make some changes to see if the bike would run any faster.

The biggest problem was to keep the power on the salts. The bike makes power enough.

After being cooked at the starting line for 4 hours the drivers needed some shade and relaxing.


Looking at the starting line, it would take them 3 to 4 hours, before they could have a next try. We decided to call it a day and prepared the bikes for tomorrow.

We took the bikes to a car wash area to get all the salt off, nasty stuff this salt. It is really getting in everywhere, in the most impossible places.

the ugly bunch

Last update,

Boy what a experience,

Last day on the salt, we decided  to stop racing the XB9r  and the xbRR

also because the XBRR hit a big pothole witch with the long swingarm and all that lead fixed to here broke the swingarm axle

swing arm axle broke on the RR

They bought have records and upgraded their record during the week

But for the records to be official the bikes need to be scrutinized and the front cylinder head need to be removed to measure the bore and stroke , this has to be done in the impound aria

The RR striped for the Tech inspection

So pit was set up in impound to remove the heads from bought bikes

bought bikes where ok at the tech inspection

Nasty stuff that salt, we already could see parts corroding, basically all the bikes need to be taken apart after this week and part for part cleaned , washed, cleaned again, washed again , bead blasted and cleaned in a hot bath for all the salt corrosion to stop and be removed

salt allready corroding at the battery terminal

we had still time to run the 1125, and after a week of changing things she was finally getting up to speed, swing arm extensions off, bigger gearing, other rear tyre, fixed some lead to the original swingarm  to get more traction.

But long waiting in between runs, did also mean the motor was not at temperature , in the 1125 is a cold engine protecting system, that means you can’t get here over 8000 rpm with a cold engine.

But having so much other problems with the handling stability, we never thought off disabling this protection.  Only after one off the last runs, the bike finaly was hooking up, stable, and fun to drive

The rider came back and said “well , she would go over 8000 rpm “ Dris recognized this problem,

But no more time to fix it.. Dham. We really had our hopes set on this bike to excel and improve the record with miles, this will be something for the following years,

Still we go home with 2 new speed records, and a lot off testing and problem solving done  

Well done Rachael and Richard and Andi

Thanks to Oliver, Don,  it was a big experience for us  

Special thanks to Micheal Righter from Erik Buell racing for sending us the parts we needed so fast to us, and to Will who came up with a new crank for the XB9


 the long 16 hour drive home