Thruxton R at Bonneville Salt Flats starting Saturday - Page 8 - Triumph Forum: Triumph Rat Motorcycle Forums
Water Cooled Twins Talk Discussion of water cooled Triumph Twin related matters and topics.

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post #71 of 95 (permalink) Old 08-17-2019, 06:38 PM Thread Starter
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Ashman is the winner at 139 mph. He must of had a crystal ball and knew the course was slick as snot.

Here is a link to that run, sorry about the quality.. I banged my helmet against the Gopro.


https://youtu.be/UkHcGZcMoWA
Do I get your fairing hehe, I put that speed from your runs from last year and thought 139 would be just right but didn't know about the condition of the salt at the time, I am glad you made it, anyway what speed was you hoping for.

Ashley
I was thinking about 145 to be a good number if we had that hard Salt from 2018.

I'm seriously thinking about finding a open country road to see what if any difference there is, of course the distance will have to be shorter.

I can use the GPS on the Gopro and unlike Bonneville it will be the peak speed not an average over a mile.
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post #72 of 95 (permalink) Old 08-17-2019, 06:53 PM Thread Starter
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Yeah usually when we run 8 times we change the gearing several times but this time we only changed it once in the three runs. I think we got it right with the change for the course condition. Still studying the data and Gopro footage.
your machine is gorgeous.

why are you changing the gearing? are you lowering the numerical ratio in order to decrease the torque at lower speeds so you don't break loose from the salt? can you still reach your power peak doing that?
The bike we stock gearing ran 131 before hitting the rev limiter. The next time I went with higher gearing and the bike would pull but fell about 600 rpm short of red line but increased speed to 136 mph.

This time we went in with lower gearing than the last time but taller than the first time and actually went slower than the first time.

The course was bumpy and soft to very soft in places do I lowered the gearing to help pull through the muck. It worked and we were on the right track increasing the speed to 139 mph.

We always have wheel spin on bumpy courses but it is usually hard and bumpy but this time it was soft and bumpy. So if it wasn't a bump causing wheel spin it was the soft spots.

It was a fair course because everyone had to run it. I left before the last day and at that point there were no new members in the 200 mph club, which may have been a first.
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post #73 of 95 (permalink) Old 08-17-2019, 10:19 PM Thread Starter
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I was thinking about 145 to be a good number if we had that hard Salt from 2018.

I'm seriously thinking about finding a open country road to see what if any difference there is, of course the distance will have to be shorter.

I can use the GPS on the Gopro and unlike Bonneville it will be the peak speed not an average over a mile.
Come to Australia lots of open flat roads here that go for hundreds of miles<img src="https://www.triumphrat.net/images/TriumphRat_2015/smilies/tango_face_grin.png" border="0" alt="" title="Big Grin" class="inlineimg" />
Australia is on my bucket list. Just need an excuse to bring my bike along with a side trip to Lake Gardiner. Just wondering if I did come down to race if any of the Australians on this site would be interested in coming along as a support crew?
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post #74 of 95 (permalink) Old 08-18-2019, 05:18 AM
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Australia is on my bucket list. Just need an excuse to bring my bike along with a side trip to Lake Gardiner. Just wondering if I did come down to race if any of the Australians on this site would be interested in coming along as a support crew?
Count me in, I am retired and have plenty of time on my hands the wife won't miss me.
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post #75 of 95 (permalink) Old 08-18-2019, 05:30 AM Thread Starter
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Australia is on my bucket list. Just need an excuse to bring my bike along with a side trip to Lake Gardiner. Just wondering if I did come down to race if any of the Australians on this site would be interested in coming along as a support crew?
Count me in, I am retired and have plenty of time on my hands<img src="https://www.triumphrat.net/images/TriumphRat_2015/smilies/tango_face_grin.png" border="0" alt="" title="Big Grin" class="inlineimg" /> the wife won't miss me.
Alright ....alright...alright.
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post #76 of 95 (permalink) Old 08-19-2019, 04:49 AM
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Australia is on my bucket list. Just need an excuse to bring my bike along with a side trip to Lake Gardiner. Just wondering if I did come down to race if any of the Australians on this site would be interested in coming along as a support crew?
I'm there ...

It's only 2500 kms from here,via the most direct route. so I could take the scenic road and take in the sights...
my wife tells me I need to get out of the workshop more!!
Peter H
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post #77 of 95 (permalink) Old 08-19-2019, 05:17 AM
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I'm there ...

It's only 2500 kms from here,via the most direct route. so I could take the scenic road and take in the sights...
my wife tells me I need to get out of the workshop more!!
Peter H
I am packed already lol, I also got a spare 900 Truxton for another crew member.

Ashley
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post #78 of 95 (permalink) Old 08-19-2019, 06:34 AM
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Not too far from me in Adelaide.

COUNT ME IN.
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post #79 of 95 (permalink) Old 08-19-2019, 06:05 PM Thread Starter
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Looking forward to the videos!

Do I remember from your previous runs that the factory ECU seemed to speed limit the Thrux R to about 136 indicated? You've gotten around that?
Sorry I missed this earlier. I don't think they have a speed limiter on it in that it cuts the power, however I do believe the ECU does starting closing the throttle body at higher speeds.

By removing the abs fuse once the bike is started the ECU doesn't allow it to close at higher speeds, but this is my opinion. I didn't post my first run with the abs in as normal vs the 3rd run with it out. I wish my Gopro videos would have been better to show the difference clearly.

My first run was done at 7:56 am at 5570 feet and ran 127.974 mph at 3 miles with 5 mph wind from SW with abs fuse in

My third run was done at 8:29 am at 5994 feet and ran 132.250 at 1 mile and 139.162 at 3 miles with 3 mph wind from SW with fuse out. The bike should have been slightly slower because of the conditions but was faster in the first mile without the fuse being than the bike was with it in after 3 miles.

To me and I'm not trying to convince anybody to do this but it was clear to me the bike was stronger at the top without the fuse being end.

The bike will set a P1521 code and engine management light which can be reset with OBD device.

I have the video up of the 3rd run and if anybody wants to see the first run I'll post it. I did make a few other changes to help traction but I'm just talking about how the motor pulled.
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post #80 of 95 (permalink) Old 08-19-2019, 06:26 PM Thread Starter
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I have an interesting proposition for a few members since I don't know when I'll get down to Australia to run Lake Gardiner.

In August 2021 I am planning to go back to Bonneville, the vlogger The Missenden Flyer is planning on being my co-rider at this event.

I'd like to offer up three crew positions for 2021 to: Meerkat, Ashman, Tricolour, Wachuko, Ranger995, Vitesse, and AJ Cycles.

I know it would be long way to come and pretty expensive, we leave from Boise Idaho. I do cover entrance fees, hotel rooms, food and drinks on the salt.

Generally we arrive on the Salt 2nd Friday in August and leave the following Wednesday or Thursday.

This is for 2021 Not next year. Give it some thought if you ever wanted to see Bonneville then being part of it is the best way.
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Last edited by retjustdad53; 08-20-2019 at 11:08 AM.
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