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Tec cam

Howdy,

Recently had the Tec stick with lumps (cam) fitted to my 2018 Street.
Previously the bike had a mapping change by the dealer when the bike was new as i had the X pipe fitted at pre delivery. By dyno that was running rich across the rev range, dyno at a much later date.
Then i fitted Remus pipes, running without the baffles, then the dyno said that it was lean with slightly more torque but no change in HP. Fitted a BoosterPlug and seemed to fix it, the leanness and reduced the throttle roll off cackle? But no dyno run to confirm this.
Also have K&N filter installed.
After the debacle with the German cam, and heaps of stress and a return of the cam, I ordered the Tec cam.
All I can say is wow what a difference it makes. Probably only got about 500Ks on the new cam and had it fitted at the 10K kilometer servicing. Bike pulls better throughout the entire range above low end torque, possibly a tiny drop from the bottom but I also removed the snorkel at cam fitment, but wrapped in how much better it goes. Used to sort of slow down in acceleration around 120kph (top gear) now easily pulls to 140 and still feels like it will keep going but giving it a bit of a run in before I go balls to the wall/full loud.
As it doesn’t go asthmatic I am holding for longer in 2nd gear corners where as previously I would change up to third as it was running out of oomph although it really was a 2nd gear corner for my thinking and riding style. Now these definitely are 2nd gear corners.
I feel there is real need now to change the gearing to taller with the extra grunt, was thinking of 2 less teeth on the rear but it may be easier for me to get 1 more tooth on the front where I am situated.
Have access to a power commander and am wondering if it is worth going to the hassle of getting that sorted, a map then fine tuning on the dyno.
Currently, BoosterPlug, X pipe, Remus straight thru pipes, snorkel removed, K&N filter and the additional box thingy in the intake side with vacuum lines going to it, fitted here in Thailand, removed.
After fitting the cam and removing the snorkel there is a lot more burbling happening on throttle roll off than previous so maybe the BoosterPlug can’t fully adjust for the cam and all of the other mods. If I decide to fit the power commander will do a pre and post PC run to check on fuel air ratios, Tq and HP also, in the current configuration.
If I do another dyno will get the previous run sheets for comparison.

Am I missing something about people quoting exact RPMs from the street, are people using smart phone ap or an after market tacho?

Am keen to hear from anyone who had one of the 900 liquid cooled engines, Twin or Scrambler, with a cam fitted and then moved onto the Speed to get their opinion on the actual difference in real world feel. There is no substitute for cubes and another 300cc’s must make a difference and then of course there is that 6th gear and twin disc brakes.
Have a few reservations regarding the Speed over the Street, considerable loss selling Street to get Speed and seat height is real issue for me at 155cm/5’2” ish. Additionally i have a 765 for speed and high end brakes and suspension. Would love the extra cubes in the 1200 and the 6 speed box, tacho and twin 4 pot discs but the price difference at the moment is something i don’t think i could live with, maybe if a demo comes up at the right price or after a year or so there should be some low ks SH bikes floating around where some other poor bugger has worn that big initial loss.

Thanks.
 

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Brembo radial cyl

Talked to my dealer, and we decided to hold off on the cam for now. The bike is brand new, 3 weeks old, and installing the cam will void the warranty on the motor. He said it's better to wait till that first 10k valve check, which would probably be next year or so... by then I will have decided if I will keep the bike long term and the warranty will be more than half over, at least...

So we ordered up a new Brembo radial master cylinder from the Street Triple R and will fit that to help with stopping, a new black lever to match for the clutch, and I just ordered up the progressive spring and preload adjuster kit from TEC USA... Oh, and the X-Pipe. So it will breath a bit better, be a lot louder, stop better and handle better. I already have the Fox shocks on the rear, so the forks being stiffer will help.
Be happy to hear any updates about the performance difference in braking by fitting a good quality M/Cyl. Interesting to see how that cylinder goes as it was designed to move 8 pistons as opposed to two.
Previously fitted EBC HH pads which helped but i still feel the braking is woefully inadequate prior to fitting a cam let alone after.
 

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Be happy to hear any updates about the performance difference in braking by fitting a good quality M/Cyl. Interesting to see how that cylinder goes as it was designed to move 8 pistons as opposed to two.
Previously fitted EBC HH pads which helped but i still feel the braking is woefully inadequate prior to fitting a cam let alone after.
I will report back, parts should be here this week. X-Pipe is going on this week as well. Hoping that the bike doesn't run too lean with the X-pipe, debaffled stock cans, K&N air filter with snorkel removed, etc...

Some say the dealer has an off road map, others say it doesn't and that all they do is the "12 minute tune"...

Thoughts on that?
 

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Agreed. I was referring to the 1200 in the Bonneville and Bobber - both heavier bikes.

Speed Twin and Thruxton are a different class.

However. For $9k I have performance that I love and more like a more expensive bike.

I looked at a speed twin but it’s too tall for me. I am very short.

Additionally, if I get another bike, probably a street triple (LRH). Have a classic type and a sport modern.

Thank you for the distinction. I should have clarified.
Perfect pairing a triple and a twin. That's what I've done, never gets old.
 

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I will report back, parts should be here this week. X-Pipe is going on this week as well. Hoping that the bike doesn't run too lean with the X-pipe, debaffled stock cans, K&N air filter with snorkel removed, etc...

Some say the dealer has an off road map, others say it doesn't and that all they do is the "12 minute tune"...

Thoughts on that?
Possibly a BoosterPlug?

Was reading on another thread that the 12 minute tune at idle on the side stand in neutral doesn't work as the bike has to be in gear and clutch out for the learning to happen but the ECU learns as you are riding. But it will still only adjust to the lean OEM figures anyway. IMO better to fit a booster plug or power commander but the power commander is a lot more expensive and then requires dyno time, or a skilled operator with laptop and experience to fine tune it.

My oops if your bike is 2019 model as it will have one 4 pot caliper not one 2 pot caliper as my 2018 model.
Priced the 4 piston caliper from Triumph for 2019 model caliper and obviously have a high gold content by the Triumph price lol. Nearly as much, 75-80%, of a pair of Brembo M4 calipers!
Also think that the mounting bolt distance is different as my 2018 model is 80mm.
 

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Discussion Starter #26
I will report back, parts should be here this week. X-Pipe is going on this week as well. Hoping that the bike doesn't run too lean with the X-pipe, debaffled stock cans, K&N air filter with snorkel removed, etc...

Some say the dealer has an off road map, others say it doesn't and that all they do is the "12 minute tune"...

Thoughts on that?
I was told by George that if you do exhaust. especially CAT delete, you should either run his plug kit, or better yet, George say the V&H tune from Triumph works great for running rich with an exhaust, even his rebel 2-1.

My dealer said they have stock and Vance & Hines (V&H) and put the V&H tune on with all exhausts, mirroring what George at TEC said.
 

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Discussion Starter #27
Had my 500 miles post Cam install oil change today. Everything looks good and Maggie is running great!

The oil apparently looked good and there were no noticeable metal pieces, etc.
 

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Test rode the 19 Street Twin yesterday,
So now understand about the tahco figures mentioned before, hadn't kept abreast of all the differences from 18 to 19 models, oops. The digital tacho is so much better than no tacho on the 18 model.
From memory the bike seemed to have a bit more go in standard trim than the 18 model and the gearbox was definitely much smoother than the 18 model.
Wanted to feel the braking difference from my 2 pot caliper to one 4 pot caliper and although there was a noticeable difference it wasn't as much as i had hoped, but maybe the brake wasn't fully beaded in on the demo bike as it only had a few hundred kilometers on the bike.

This may be getting to off topic for the subject matter here and i may be better starting a separate post about brakes.
Rechecked and they 2019 street twin caliper mounting bolts are 65mm apart, same as the Speed Twin but the 2018 model with 2 pot calipers mounting bolts are 80mm apart, same as the T100/120 which are 2 pot calipers.
So there is no direct bolt up option that i can see for the 4 pot calipers to the 18 model. Web research found the 65mm and 40mm P4 type calipers, Speed twin and 2019 street twin type, so these would need a mounting bracket to be manufactured to fit 2018 street or T series.
 

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Had my 500 miles post Cam install oil change today. Everything looks good and Maggie is running great!

The oil apparently looked good and there were no noticeable metal pieces, etc.
Would have thought that if there were any metal bits they would have been trapped within the oil filter as that is its job.
 

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had a cammed and decatted ST, wrote heaps aboutit in another thread.. was awesome improvement.. just bought a 2017 Thruxton.. no real comparison TBH.. where the ST starts to topout, the Thruxton keeps pulling further and faster.
 

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had a cammed and decatted ST, wrote heaps aboutit in another thread.. was awesome improvement.. just bought a 2017 Thruxton.. no real comparison TBH.. where the ST starts to topout, the Thruxton keeps pulling further and faster.
Yes agreed, was on a ride on the weekend with a mate with a Thruxton R and although the cam is a huge improvement over std in the Street it just doesn't put it in 1200cc HP territory, maybe be closer to a T120? but the HP engine in the Thruxton and Speed are in a different league.

The cam is great and i am very happy with the power difference however compared to 1200 HP and say the triple engines (not a fair comparison) it still takes a while to get to those higher revs, takes a while to wind out, and as mentioned in other posts there is only one throttle body in the street and valve sizes, port sizes etc which are physical limitations to any performance gains and also another 300cc has to be of benefit.

I still like the low seat height of the Street, it's maneuverability in general and enjoy riding the bike especially in town and in some of the slower twisty type roads (braking inadequacy is further exacerbated as speed increases
(as half mass X velocity squared would dictate). Currently in the process upgrading the front brakes and front wheel to 17" so will continue with that and once sorted i will list the details in separate threads.
 

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Understood. The Street Twin is my first bike. I race a Formula car, have a 700HP Porsche 911 Turbo, etc, but this is my first bike. I wanted to stay in a safe range for a beginner bike. Speed Twin seemed like a little much in addition to the height. I didn't upgrade the CAM to be a speed demon. However, the bike feels so much better now. I recommend it to anyone who doesn't want their 900 choking.

Having said all that, I would definitely consider a Speed Twin, especially if I can a) lower it and b) can only have one bike. I have taken to going on long rides and I am not sure the Street Triple will be as comfortable. If I get a second bike in the future, well, then, Street Triple would be cool. Again, still working my way up though.

I am 5'4" with short legs. Would have to lower it a bunch.
I am 5'2".
With lowering the Striple you can use Soupys adjustable turnbuckles and slide the forks through a bit. Fork OD reduces so you are limited in how much they can sidle through. There isn't the option of a low ride height version where i am so i got the RS, only option available here, and used the Soupys system, including the adjustable length side stand. Compared to buying a pair of shorter shocks for the Speed this would be much cheaper and am not aware of shorter shocks that fit the speed other than Street/Scrambler Ohlins shocks but they are 40-50mm shorter which may have handling implications for the Speed. If i ever get a Speed i would be upgrading the shocks (both ends) to get some form of adjustability.
For a straight out performance and handling comparison the Striple far exceeds the Speed, power, suspension adjustablility and not to mention brakes and is cheaper than the Speed but they are two very different bikes. Striple comfort for long rides pretty well non existent.
 

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As a new Street Twin owner, I’m intrigued doing the cam shaft replacement. Stock, I can feel my bike start to struggle just a bit cruising at 75mph. I’d like to feel and hear that 65mph effortless purring at 75-80mph. Since a 6th cog is out of the question...

Also spec-wise, I’d love to bring my Street Twin to other middle weight bikes, just for bragging rights. :).

Thanks for your this thread and updates! Now i have till 10k miles to decide whether to do this ... lol
 

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On a Thruxton the new cams give about 98rwhp with an x-pipe decat and a PCV.

Don't believe all the twoddle about ECU's "learning" about cams, ECU resets, dealer-supplied updated tunes, and all that crap.
The "learning" mode is for idle, and makes zero difference to performance.
The ECU has no idea what cam you have installed, and these bikes don't even have a knock-sensor.
They do NOT run lean at any time, so don't fall for the "you need a Booster Plug" rubbish. They run rich under acceleration as stock, no matter which filter or pipes you fit. If you want to fix that, buy a PCV to lean it out at the appropriate points, not a BP to richen it everywhere.

The TEC Thruxton cams are the profile copied from the Triumph official race cam that was never released. A couple of the cams slipped through the "back door", and were copied. We have the same profiles on cams made here in Australia, so we know exactly which ones they are. They are relatively mild cams, so should cause no issues if fitted properly.
The two versions of ST cams came out because Triumph shifted the cam sprocket 1mm over when they discovered people were buying Thruxton cams and grinding them and fitting them into the 900s. If anyone bought a Raisch cam, check this carefully, because even though it should make no difference to running, the offset of 1mm on such a short chain will undoubtedly cause issues over time. Oh, and the "fixed PCV tunes" from Raisch have simply removed the ignition advance timings, whereas the real concern is the cam chain!

Yes, we have a dyno. No, we're not guessing. Yes, we have all the official Triumph diagnostics software. :)
 

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I have a T100 with the earlier version of the Tec cam fitted and I am really happy with the result.
I was always curious as to how this cam came about.
Is it a copy of an aftermarket Triumph cam?
Why the hell did they not roll out the bikes with it in the first place?
Thanks.
Simon[
 

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I have a T100 with the earlier version of the Tec cam fitted and I am really happy with the result.
I was always curious as to how this cam came about.
Is it a copy of an aftermarket Triumph cam?
Why the hell did they not roll out the bikes with it in the first place?
Thanks.
Simon
I'm not sure, but I would guess it is also a Triumph designed unit, primarily because TEC are not a tuning company and don't have a dyno. That suggests that they either spent tens of thousands creating cam profiles and experimenting, or they got hold of a Triumph internal unit.

Why were these not fitted as stock? Because they are not emissions compliant, as they have too much valve overlap meaning some fuel will be released with the exhaust gasses.
 

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George was showing dyno sheets for a Thruxton with around 107 horsepower without a PCV. Where was he getting those numbers?
You could see the dyno on some of the videos

He would probably have used a local dyno to test the project at the various stages - decat etc
 
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