America ECU restrictions

Well, personally i have had over an indicated 100mph out of my America without a problem. Ive had sportsbikes & have done the 130+mph everywhere thing, but now i am happy to just ride about at legal-ish speeds on my cruiser.
Doing top speed on the America/Speedmaster isnt the most comfortable of achievements. The wind blast is pretty heavy at illegal speeds without a windshield. The America/Speedmaster werent really designed for speed, its a mid range cruiser. Where as the Thunderbord/Storm or Rocket would of possible suited you better if you require the best of both worlds.

 

As your Triumph America is an EFI model then i think you can use the tune ecu software which is free online or visit the Triumph Twin Power website. You will need a laptop & suitable comms cable. They may well have a map that makes the necessary changes to the software in the ecu to enable your bike to go faster.

Tune ECU - http://www.tuneecu.com/

Triumph Twin Power - http://www.triumphtwinpower.com/triumph-twin-power-efi-tunes.php

Having said that i do remember reading somewhere that the later EFI modeled America/Speedmaster has a rev limit of 8k in 1st-4th gear but 5.5k in 5th, the only reason i can think of for this would be the stricter emission laws? Apparently there is a speed restriction in the EFI map.
The earlier carb modeled America/Speedmaster rev to 8k in all gears i believe.

Alternatively, you could change the gearing. Going down a tooth at the front would increase acceleration but drop top speed, where as going up a tooth or two at the front would increase top speed at the cost of acceleration.

Hope this helps but please get back to me should you require more information.

 

I have to agree with Pig, these bikes were not designed with speed in mind, they are more of a cruiser. Most folks buying this sort of bike are not interested in hitting the ton, but I am sure there is someone out there who can modify or replace the ECU. Just beware that if you do have it modified you may have issues with the Triumph warranty .
Did the dealer explain about the top speed when you bought the bike?
Perhaps you would be happier with a Speed Triple???

 

Have you got open pipes? Try those with a more sporty air filter and the ecu map that Pig mentioned above. Did you have a test ride on their demo?

I'm sure you'll love it even if the top end isn't what you expected

 

With the speed restriction/5th gear rev limiter lifted you will hit 115-120mph, especially if you get TORS open exhausts & a K&N air filter. I would advise you get yourself a gym membership too to tone up your neck muscles..... You are going to need them! :wink:

 

If you go on the RAT forum, http://www.triumphrat.net/forum.php they are mainly people from America & are pretty helpful. The speed restricted later modeled EFI Americas/Speedmasters has been discussed no end, do a search, grab a beer or cup of tea, sit back & feed your mind with knowledge.
The answers are there & you can release more power from your bike with a few simple modifications & re-mapping.

 

This is a very interesting thread, I just passed 1000 miles myself on my 2011 reg 2012 model year America. I only did 80 though as im obviously not as strong as yourself Tinabiker:biggrin:

I will one day have a go at cracking that ton and report back.

Al

 

If your struggling lend it to me..

 

An EFI America wouldnt hit 100 with you on it...... Lard arse! :wink:

 

I would down hill you soppy sod

 

Fair point x

 

Take some stopping, though?

 

Just sit up....!

 

Glad you got it all sorted View attachment 2617