More tune questions for a Roadster

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Nitrous
Joined
Sep 11, 2010
Messages
1,431
Location
Brisbane South, Australia
Ride
2011 Roadster and 2001 Bonneville
I have down loaded the Tune ECU 20355' it says it's for stock Roadster with open exhaust and the seconderies 100% open, but when you open up the tune the seconderies are at stock settings, can this tune be trusted.

Does anyone know what are the changes to Triumph tune for TORS over the stock tune.

Is there a tried and tested tune out there for a stock Roadster with Stain tune exhaust.

Maybe the way to go when the warranty is out is the PCV with AT. But even then I have to get a tune with known correct A/F ratios.
 
I have down loaded the Tune ECU 20355' it says it's for stock Roadster with open exhaust and the seconderies 100% open, but when you open up the tune the seconderies are at stock settings, can this tune be trusted.

Does anyone know what are the changes to Triumph tune for TORS over the stock tune.

Is there a tried and tested tune out there for a stock Roadster with Stain tune exhaust.

Maybe the way to go when the warranty is out is the PCV with AT. But even then I have to get a tune with known correct A/F ratios.

It's a stock tune for aftermarket exhaust. The secondaries are partially closed. You should open them to 100%. It's not going to be perfect for Staintunes. Just compare this tune (for TORs) with the stock tune (20352). The 20355 tune is a bit richer. You don't have to worry about the warranty with the PCV. Just buy it and get it dyno tuned.
 
A tune intended to make the mix richer, say to accommodate freer flowing exhaust, and which doesn't have secondaries open 100% will surely run lean if you either open the secondaries or remove them. I know the TORS tune uses secondaries to make the mix richer. Don't other aftermarket exhaust tunes do likewise? If you just open secondaries 100% (or remove them) you risk making it run too lean.
 
A tune intended to make the mix richer, say to accommodate freer flowing exhaust, and which doesn't have secondaries open 100% will surely run lean if you either open the secondaries or remove them. I know the TORS tune uses secondaries to make the mix richer. Don't other aftermarket exhaust tunes do likewise? If you just open secondaries 100% (or remove them) you risk making it run too lean.

If you remove the secondaries, the mixture will be lean. I believe that when the secondaries are closed by the tune, the fuel is also reduced. Otherwise, with the secondaries set at 40% in 4th at 3000 rpm, as they are in the 20226 tune (TOR cat bypass for the first R3's), you'd be too rich. I've had it dynoed (in 4th) with the stock 20226 tune and I see no evidence of richness in the A/F at 3000 rpm. I've run the 20226 tune with the secondaries open 100% without any obvious bad effects.
 
An interesting question. If you simply remove the secondaries then I can see it being lean but what if you remove the secondaries and tell it to open them 100% all the time would the ECU know how much extra fuel to add. My guess is it would.
 
An interesting question. If you simply remove the secondaries then I can see it being lean but what if you remove the secondaries and tell it to open them 100% all the time would the ECU know how much extra fuel to add. My guess is it would.

If only. :(
 
running a 2011 roadster with pc5 and at, dealership said it doesn't void warranty.

Why remove secondary's if you open them up 100%. isn't it the same thing?.

Autotuner should also prevent from being too lean.
 
I have down loaded the Tune ECU 20355' it says it's for stock Roadster with open exhaust and the seconderies 100% open, but when you open up the tune the seconderies are at stock settings, can this tune be trusted.

Does anyone know what are the changes to Triumph tune for TORS over the stock tune.

Is there a tried and tested tune out there for a stock Roadster with Stain tune exhaust.

Maybe the way to go when the warranty is out is the PCV with AT. But even then I have to get a tune with known correct A/F ratios.

If you fit the tripple filters i have a tune for the roadster jim which would be a good base tune for you it is a modified version of the 20355 tune ecu tune secondarys open 100% ignition timing copied from higher gears speed limiter moved to 299kph but it is meant for tors so i would still be fitting the pcv and getting her dialed in to get the fuel rite on your beast the pcv will control your fuel and tune ecu will take care of the other stuff unless u can find someone with a good pcv air/fuel map for the roadster then u could use auto tune to dial it in for u. either way its always going to be better than messing with a canned tune. even the guys who think their bike is running sweet are usually pleasently surprised when they have a map specifically for their machine weather it be tuneboy tune ecu pc3 or pcv every bike is different and a canned tune is only ever going to be close. My bike never pops now she is mapped correctly and the power delivery is very smooth . Im still getting around 290k out of a tank even with the power increase. now i just wish i could find an alternative rear tire that doesnt wear out after 5000 - 6000 ks dont trust the avon after the past incidents they have had and the bridgy may be good but im not keen on the higher profile so for now ill stick with the metzeler:cool:
 
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