SE baffle removal

"Butchery, sheer butchery !!!! Is what some will say." Actually quite nicely done and good pics.

Nice going Steve, I bet they sound better now ?

 

No, no Steve, I don't remember that............................................................

 

Well done. It's a bit nerve racking to start with aint it! Butchered mine too last week, only I found I could not stop myself from drilling out the entire mess that was stuffing up the pipes. Mine are now straight thru (can see the cat) and boy do they sound fantastic.
Loaded tune 3 from TTP and removed the 02 sensors, it's a different bike. Unbelievable! I reckon I saved £800-1000 as I was gonna fit Arrow or Remus, so glad I didn't.

 

Hi Steve i'm glad you have taken this action as i wanted a better sound & tried the classic pipes without success. First have you removed the SAI system, & if not are you going to? Also compared to Youtube baffleoctomy video where they drill a hole through the second wall of the exhaust, is there a reason you haven't?
Basically you have removed the baffle which the dealers want about £350/400 for their TORS version.

 

Hi Steve, if you remove the SAI system you might make the bike run lean. Here's my logic:
1. SAI system permits fresh air to enter the header pipes/exhaust downpipes downstream of the head but upstream of the O² sensor;

2. The O² sensor is downstream of the SAI fresh air inlet, so it is measuring not only the exhaust gases (with any unburnt fuel) but also the the oxygen in the SAI. So the readings the O² gives to the ECU for fuelling calculations takes into account the SAI air.

Bare in mind the bike manufacturers are encouraged by pollution targets to run the bikes lean.

2. Now if you remove the SAI - in any form - the O² sensor is getting getting only the stream of exhaust gases with any unburnt fuel, so giving a different reading to the ECU which could interpret that reading as overly rich, therefore lean down the fuel input by the fuel injectors and make the bike run even more lean.

NB. All of these anti-pollution usually work at 0% to perhaps 10% of full throttle so it's important to see them in context.

If I had your bike Steve, I would be looking at the bigger picture - how can I remove this stuff without creating any lean-burn situations.

My feeling is this:

1. Remove the AI system and the O² sensor; remove any airbox restrictions and replace the air filter with a free flowing one K&N/DNA etc etc; Replace the std can with a free flowing version - not too loud but free flowing.

Do all these mods AT THE SAME TIME.

2. Go to TuneECU and select a Tiger 800 modified fuelling map that most resembles your configuration and install that map.

That of course is assuming that TuneECU will talk to your bikes ECU as the manufacturers are supposedly including lock-outs on some bikes.

Some clever so and so will get around them though.....................................

PS On EFi Bonnies you can turn off the AI component of the fuelling map using TuneECU, which allows you to totally remove the AI system including the solenoid. This means no fault lights are triggered.

It would be handy to know if that applies to Tiger 800 ?????

 

You have almost convinced me to do the same to mine, it's just a pity we can't hear them. Glad to hear you have had no issues at all, but have you been on a decent run since to compare the differences?

 

When I rode Erics (Tigcraft) Bonny - a 2012 - It felt smoother and more nippy than my 2010 bike so I reckon that they are improving them 'on the quiet' so to speak.

You know what they say Steve - if it ain't broke don't fix it.

 

I never thought about that Steve, I had a 19T on mine too !!!

 

Hi Steve, I've just come across this video and found it interesting. It shows a Power Commander being installed on a 2016 Speed Twin and clearly shows that the 2 O² sensors are disconnected as part of the install.

I'm not saying this is necessarily what you should do, but it is an interesting work around IF the ECU really is Locked out.

 

Who was the chimp????

 

Anyway, I've a spare set of cast wheel cans and also thruxton ones should anybody fokk them up!!