Dedicated 1299 exhaust. Will there be one?
- Thread starter Blade Runner
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If Kaido is talking full Akra systems, and I believe he is then the PATHWAY is different if the flapper valve is there. Not sure what the point of all this is anyway. Put a less restrictive system on and you will get some more HP.
As I posted when I fitted my Akra system last year, the only difference I felt, and more to the point heard, was the noise. It was only after a custom TB tune that I actually could tell a real difference.
Speedy14 - try wire locking the flapper valve open, a friend with the same setup as you had problems with the flapper valve closing, especially higher up the rev range. Dealer was convinced there wasn't a fault till they stuck it on the dyno. Apparently Ducati are aware and looking at a fix.
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I'd say this is a prime example of what happens when the product line gets fragmented. The R models will always be the bikes that matter when it comes to Ducati's development efforts/dollars and the rest of the line will get scraps from that table. Works fine when the rest of the line consists of lower spec versions of the Rs but becomes problematic when there's something somewhat different in the fold.
My guess is that 1299 specific performance parts will never exist.
My guess is that 1299 specific performance parts will never exist.
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every dyno reads differently. so absolute numbers are meaningless. most of us know this already.
dynos can be useful for back-to-back comparisons if done on the same day, same conditions, etc.
what's a better exhaust then? one that makes the owner happier
I personally feel that Termignoni hit a home run with the front-exit slip-ons. Maybe it took just that amount of out of the box thinking to come up with a solution so simple. It cuts out a ton of weight, looks beautiful with the carbon fiber, can be used with either the 1199 or 1299, and with stock or aftermarket collectors, and the bike basically just rides better and stronger, if the few of us who've done the swap can be believed
dynos can be useful for back-to-back comparisons if done on the same day, same conditions, etc.
what's a better exhaust then? one that makes the owner happier
I personally feel that Termignoni hit a home run with the front-exit slip-ons. Maybe it took just that amount of out of the box thinking to come up with a solution so simple. It cuts out a ton of weight, looks beautiful with the carbon fiber, can be used with either the 1199 or 1299, and with stock or aftermarket collectors, and the bike basically just rides better and stronger, if the few of us who've done the swap can be believed 
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every dyno reads differently. so absolute numbers are meaningless. most of us know this already.
dynos can be useful for back-to-back comparisons if done on the same day, same conditions, etc.
Im going start an argument and get numerous feedback by saying this but the statement above is a myth.
One particular manufacturers dyno may differ from another manufacturer due to proprietary software . The SAE or STD correction factor will be the same but how different manufactures calculate drive train loss will be different . But the same manufacturer Dyno (same model i.e. Dyno jet 250i) does not or should not differ. SAE correction factor make all things equal (air Temp, Barometric pressure, Altitude, etc). I know two machines are truly not identical in terms of mechanical so there are some differences but it is very minor and really wouldn't affect the results. As long as the dynos are calibrated they shouldn't vary. It all in the software.
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What's all this ........ about lock wiring ?
Unless it's different to the 1199, there is a big ....... spring that holds the butterfly valve open.
Once you remove the cable it will always stay open, that is the default position.
And speedy, I bet my left nut that the flapper valve has nothing to do with your throttle problems. I hope you get an answer to that soon.
Unless it's different to the 1199, there is a big ....... spring that holds the butterfly valve open.
Once you remove the cable it will always stay open, that is the default position.
And speedy, I bet my left nut that the flapper valve has nothing to do with your throttle problems. I hope you get an answer to that soon.
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Sounds good to me!
I was wondering if that's The stock position when disconnected! I will disconnect mine this afternoon
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Dealer sorted problem not me on Ducati's info at the time , valve was sticking closed not able to fully open , so there's your ........ !
Unfortunately the big ....... spring isn't ....... strong enough. His bike wouldn't rev past 9K, every single time. Dealer put it on the dyno & recognised the fault. Once wire locked in the open position the problem was fixed. I can't beleive he's got the only bike affected so why not share the information with other members?
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^^^^
That's my symptoms! (Max 10k in 5th/6th)
I'd like details then on how/where it was lock wired etc?
I'm assuming the default position with spring is open?! The spring feels like there is a bit of tension in it!
I have just disconnected the power to the servo so that means it's permanently in the open position? Will give it a try like that before I do anything else
That's my symptoms! (Max 10k in 5th/6th)
I'd like details then on how/where it was lock wired etc?
I'm assuming the default position with spring is open?! The spring feels like there is a bit of tension in it!
I have just disconnected the power to the servo so that means it's permanently in the open position? Will give it a try like that before I do anything else
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every dyno reads differently. so absolute numbers are meaningless. most of us know this already.
dynos can be useful for back-to-back comparisons if done on the same day, same conditions, etc.
what's a better exhaust then? one that makes the owner happier
forget the numbers just look at the 2 graphs, from stock to full akro system.
The improvements in the torque graph speaks for itself.
It's clear the 1299 still has the same problem the 1199 despite the increase in displacements which tells me afew things. The design of the exhaust system is ....... ...., either and the engine needs more air.
But as you said the one that feels better to you is the better. I went akro as it was the only one out at the time that had promise (compare to the old termi design)
Either way stock exhaust with stock mapping is ....... ....
I don't have pictures but disconnect the cable from the flapper valve itself, you're correct its spring loaded to the open position. He wire locked it in place so the valve can't physically move. Are you running Akra Slips with the Racing UPMAP?
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Just took it for a run and hit 10.5k in 5th (shift lights came up) and pulled an indicated 185/186 in 6th (10-10.5k rpm). It felt better at the top end but not totally sure!
Unless the speedo is very accurate I expected it to pull a bigger number giving a bit of over read etc?
What is the max top end speed people have seen?
Mine is stock with 1450miles on the clock currently!
Unless the speedo is very accurate I expected it to pull a bigger number giving a bit of over read etc?
What is the max top end speed people have seen?
Mine is stock with 1450miles on the clock currently!
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That sounds about right Chillo , although not totally maxed it out in 6th yet , roads n coppers just a wee problem
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1299 stock Exhaust to 1199
So, would the 1299 stock exhaust fit the 1199? I have a friend that would give me his 1299. So i can put it on my 1199 then? Let me know how I can reach you and do the mod. thanks!
So, would the 1299 stock exhaust fit the 1199? I have a friend that would give me his 1299. So i can put it on my 1199 then? Let me know how I can reach you and do the mod. thanks!
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