Stock Exhaust Ok With Dp Ecu ??

[Mr Mike]

Been reading lots of threads RE exhaust and fueling.
Want to improve ridability and reduce lean hot running.
Think DP ECU is way to go but dont want to spend 2-3 grand.

I have a 796 and this forum is mostly 1100's but the same principles should apply.
DP sells the termi slip on ,ECU and airbox cover $1800
DP manifold kit(eliminate Cat) ECU, airbox cover $1200
DP full sysyem is over 2 grand and is 2-1
I like the underseat 2-2 but the only way is to buy both
manifold and slip on , $3000

Im thinking the best move would be to buy the manifold kit and keep the stock Can for now. Later , as funds permitt I can do something with the Can.
And adjust the trim

Do you think I should not install the airbox cover until the can is replaced ??

Opinions welcomed

[Monstaman]

The factory mufflers actually flow fine, the restriction is in the unequal length header pipes and the biggest is the cat which blocks it up.

Suggest DP ECU which will disable the valve and up your fueling and if you can stump up for Zard or similar headers (if made for the 796) to get equal length header set with no big hankie stuffed in the middle you will get good results.

Don't buy the DP airbox top, drill your one as this is the same thing, better still drill the bottom out too so air is coming in from two directions.

[MTScott2]

Yup ! My manifold kit came with the flapper eliminator pipe and manifold pipes with elec. plug for when disconnecting / removing the flapper motor .Also had the Race ECU...

Got it for $1000.oo Canadian , the Termis I had put on as New when purchased.....they were listed at $1800.oo got a deal for them at time of purchase $ 13-1400.oo I think..

Maybe try drilling just the top to start then you can always drill the bottom later???

Again the manifold kit eliminates the flapper pipe also ...

It can be a bit of a chore installing ,mine seemed long ..the cans were like an inch sticking out too far.and the 1/2 inch diameter pins/pegs didn't fit into the rubber lined support holes ...
You will have to get it set up properly after the installation too ..costs about $50 max...

Save some money do it yourself then take it in for the adjustments ... if the fit isn't just right . I used a ratchet strap ( around the frame and the mid-pipe) to pull the cans into place then did all the mounting hardware up
there is 2 different size clamps so don't mix them up or you will be taking it all apart to switch them...
Also clean all your fingerprints off the pipes or they will cook on there ...and you might want to buff all the machine marks off from the factory ....

Money well spent ...with some money saved..You can free up the original cans and make them more free flowing too..Also make it louder too

I spent $$$ on H-D mufflers were the originals would have done just fine..Lesson learned...

[Mr Mike]

I think you pretty much confirmed my thinking about keeping the stock cans for now.
I do not think the 796 has a flapper, It does have TWO gas sniffers that will be history with new pipes and ECU

[Chouch]

Originally Posted by Mr Mike

I do not think the 796 has a flapper, It does have TWO gas sniffers that will be history with new pipes and ECU

What do you call gas sniffers ?
If you are talking about the TWO oxygen sensors (1 only for 2007-2009 Hyper) lambda, the new DP ECU in 2010 retains them.
It was confirmed by euro owners of 2010 EVO and EVO SP who installed Temignoni 2-1 racing kit.

[Mr Mike]

Originally Posted by Chouch

What do you call gas sniffers ?
If you are talking about the TWO oxygen sensors (1 only for 2007-2009 Hyper) lambda, the new DP ECU in 2010 retains them.
It was confirmed by euro owners of 2010 EVO and EVO SP who installed Temignoni 2-1 racing kit.

Thats interesting. The Ducati website kit displays have no sensor fittings visible. Maybe new euro standard ? Old pics reused ? (False advertising) We will see.

[Chouch]

Originally Posted by Mr Mike

Thats interesting. The Ducati website kit displays have no sensor fittings visible. Maybe new euro standard ? Old pics reused ? (False advertising) We will see.

Yeah, Ducati is also showing off with a sick pair of spoke wheels that never hit the DP catalog...

For 2010, all the Hypermotard (796, EVO and EVO SP) are running with a Siemens ECU.
So far, the new Siemens ECU for the Termignoni 2-2 kit, Termignoni 2-1 kit and DP manifolds kit retain the 2 oxygen sensors. Dont know yet about the ECU coming with the racing cams.
From owners feedback, the bikes are working great, even tho the presence of the 2 oxygen sensors means the close loop is still there.

[Mr Mike]

Closed loop is good as long as the maps arnt trying to lean the thing to death

[dave2riff]

Originally Posted by Mr Mike

Closed loop is good as long as the maps arnt trying to lean the thing to death

Agreed. If the closed-loop air/fuel ratio targets are performance oriented, as
opposed to the usual low emissions AFR targets, the machine could run great.
In fact, with a wideband O2 sensor, you could have closed-loop from idle to
redline and still be using a race-oriented performance map. Wideband closed-loop
is the future of EFI; the problem will be to get access to the fuel maps and set
them up for optimal performance. The PC V is basically that set-up, except that
it appears the Auto-Tune gradually builds a map while you ride, rather than dynamically
adjusting fuel duration to meet AFR on-the-fly, which takes a bit more computing power.

[Chouch]

Originally Posted by dave2riff

Agreed. If the closed-loop air/fuel ratio targets are performance oriented, as
opposed to the usual low emissions AFR targets, the machine could run great.
In fact, with a wideband O2 sensor, you could have closed-loop from idle to
redline and still be using a race-oriented performance map. Wideband closed-loop
is the future of EFI; the problem will be to get access to the fuel maps and set
them up for optimal performance. The PC V is basically that set-up, except that
it appears the Auto-Tune gradually builds a map while you ride, rather than dynamically
adjusting fuel duration to meet AFR on-the-fly, which takes a bit more computing power.

Well that's very interesting.
My only concern then would be : will Ducati bother with race-oriented performance map ? From what I saw on the DP ECU on the StreetFighter, they did not as the mixture appears to be still very lean.

Anyway, from the EVO SP riders running with 2-1 kit, the bike is a blast, and that's the most important thing.