Thruxton TFC Dyno Results After Break-in - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 21 (permalink) Old 09-20-2019, 01:29 AM Thread Starter
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Post Thruxton TFC Dyno Results After Break-in

I got a Thruxton TFC and I've been wanting to get it broken in at a shop instead of trying to do it on the street/freeway. I took it to a local tuning shop that has a full chassis dyno that my friend recommended and had them break in it. After they finished breaking it in on the dyno, they changed the oil and did a few pulls to get some real world at the tire numbers. I figured you guys would be interested in seeing what the TFC actually puts down.

Here is the print out from the shop.
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post #2 of 21 (permalink) Old 09-20-2019, 03:28 PM
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Is that good?

TTP Tune#3, NH Toga's.

I'm no Gynecologist but hey I'll take a look.
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post #3 of 21 (permalink) Old 09-20-2019, 06:20 PM
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Is that good?
There's no way of knowing unless you're comparing it with something else on the same dyno on the same day with the same correction factors.
I would like to see it against the standard Thruxton r, or one with an x-pipe, looks like they've got most of the extra power by getting the engine to rev higher which is something I think the standard bike needs.
Does anybody know what the "significant engine mods" are they talk about in the spec, maybe they fitted the the race kit parts they were going to sell originally but then changed their minds, didn't that include a new cam?
Would there be any problems with the warranty if you hadn't follow the running in procedure, presume the bike hasn't done 500 Miles yet.
Have you posted any pictures yet, I was looking at one last week in a local dealers, I wonder if they'll make any tfc parts available separately to add to your Thruxton or they'll keep them totally exclusive, I imagine you will be wishing for the latter.
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post #4 of 21 (permalink) Old 09-20-2019, 06:32 PM
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There's no way of knowing unless you're comparing it with something else on the same dyno on the same day with the same correction factors.
I would like to see it against the standard Thruxton r, or one with an x-pipe, looks like they've got most of the extra power by getting the engine to rev higher which is something I think the standard bike needs.
Does anybody know what the "significant engine mods" are they talk about in the spec, maybe they fitted the the race kit parts they were going to sell originally but then changed their minds, didn't that include a new cam?
Would there be any problems with the warranty if you hadn't follow the running in procedure, presume the bike hasn't done 500 Miles yet.
Have you posted any pictures yet, I was looking at one last week in a local dealers, I wonder if they'll make any tfc parts available separately to add to your Thruxton or they'll keep them totally exclusive, I imagine you will be wishing for the latter.
Just found this engine spec for the TFC, more mods than I thought.
Engine mods give the 2019 Triumph Thruxton TFC considerably more power than the Thruxton R. Inside the motor youíll find high compression pistons, a new cam profile, updated porting, and lighter components. The result is a 10-horsepower bump, though Triumph isnít yet saying at what engine speed. The torque peak boost is a modest 2.4 ft/lbs to 85 ft/lbs at 4850 rpm (100 rpm sooner than the Thruxton R) though Triumph claims ďa punch of torque both low down and across the entire rev range.Ē The motor also gets three TFC-specific power modes with customizable ABS and traction control.
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post #5 of 21 (permalink) Old 09-20-2019, 09:13 PM
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Do you have a graph showing the AFRís?

They Ďbroke it iní on the dyno.


Last edited by Tricolour; 09-21-2019 at 12:57 AM.
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post #6 of 21 (permalink) Old 09-21-2019, 05:05 PM Thread Starter
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I don't have another graph other than the one I posted. The bike had like 28 miles on it when I dropped it off and 65 when I picked it up. I talked to a friend of mine that races and he told me that he breaks in all his race motors as well as new bikes on the dyno so I decided to have it done for this bike since it is rather special, at least to me it is. When I talked to the shop they told me they basically go through a predefined engine break in procedure that puts the engine under load in very specific ways which allows them to break the thing in quickly over the course of 2 days. He said they do 3 heat cycles worth of break in runs. At the end they changed the oil, got the bike up to operating temps and did a few dyno pulls to see how much power it made.

The numbers on the sheet are a power at the wheel, not at the crank which is where Triumph's posted stats come from so it isn't a shock they are lower as you always lose power through the drive train. The dyno shop did tell me that it was by far the most powerful Thruxton they have ever seen come through the shop and they were very surprised by the results as they thought the bike was mostly just a styling exercise. After the looked up everything about the bike the guy said everyone at the shop was really impressed with the bike as a whole.

I haven't posted any pics of mine yet but I did put a New Rage Cycles tail eliminator kit on it. I have two other visual mods I want to do to it before I post pics of the bike. Hopefully I can find the parts I want and get some pics up of her sometime this coming month.
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post #7 of 21 (permalink) Old 09-21-2019, 06:10 PM
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Yeah it looks good for the extra 10 horsepower that's claimed, if not more. Is it sold with the standard cat fitted, is that dyno run with the cat or decatted.
Not sure if it has standard Thruxton r gearing but I imagine it could easily cope with a 17 tooth on the front if not a smaller rear as well.
I wasn't questioning the running in process on the bench, I'm sure it's the best way to do it in a controlled environment especially for maximum power, just wondering what triumphs view would be, not that the triumph warranty is worth losing any sleep over anyway.
Hope you get all your mods fitted soon so we can have a look at the finished bike.

Last edited by CafRacer; 09-21-2019 at 06:13 PM.
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post #8 of 21 (permalink) Old 09-21-2019, 09:17 PM Thread Starter
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Unless they have hidden the cat somewhere remarkably discrete, I don't think there is one. The exhaust that comes on it from the factory is a titanium Vance and Hines unit.

The bike was completely stock mechanically when I had it broken in and dynod. The only change was the tail eliminator that I'd put on it, good for exactly zero HP on a dyno =-)
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post #9 of 21 (permalink) Old 09-22-2019, 05:54 AM
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Unless they have hidden the cat somewhere remarkably discrete, I don't think there is one. The exhaust that comes on it from the factory is a titanium Vance and Hines unit.

The bike was completely stock mechanically when I had it broken in and dynod. The only change was the tail eliminator that I'd put on it, good for exactly zero HP on a dyno =-)
The cat on the Thruxton is indeed remarkably well hidden, squeezed in between the frame rails, you'd have to literally lie on the floor under the bike to see it, looking at the pictures it seems to have the same little cover on the downpipes that disguises the entry and exit from the cat, i would imagine its still fitted if their selling it as an emissions compliant road legal bike.
if you remove the cat in the future it will be interesting to see a second dyno run as a comparison.
Did they give you any indication that there will be more power available if you fitted a power commander v or similar?

The more I read into the specs the more I realise the number of changes they've made, much more than the styling exercise I originally thought it was.
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post #10 of 21 (permalink) Old 09-22-2019, 04:23 PM
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10 more hp is not what Iíd say is considerably more hp. 20-30 hp is considerable. I dont know , but removing cat might be close to that # at thousands less for a new limited ed of the Thruxton R. . All i know is that with the few mods Iíve done my Ď16 TTR is perfect for me.
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