The info in your post describes exactly why I have a hard time with Coober. You're going by everything "they say". For me, claims that an engine is somehow very different than every other engine out there needs to be explained and explained more thoroughly. I'm very open to learning why they come to their conclusions, but I haven't found anything that Coober explains "clearly"; just statements, pictures, and confusing graphs.
This is very simple to answer, we had a good talk with KTm, with coober and with AVL who developed this engine.
most unique on this engine is exhaust flow regulation on cat converter, they totally build the head based on the exhaust pressure. This is so far unique then the engine was buil on eur5b focus. This is not a cas at any other bike produce actually.
The 790 is the first KTM with emissions built into it and not added to it?
Yes. Now ther is a second engine coming, the new version of 1290.
Tell me how Coober. What's internal that's different?
The name of this is Thermodynamic regulation, basically my daily brad at the university.
But ktm bolted the engine to 99% of its performance.
Seems extremely similar to other parallel twins with an evap system, o2 sensors, and a catalytic converter welded/bolted into the exhaust.
Not even close. There are worlds between my mt07 and my both 790 bikes.
The only thing left is the ECU, which we know is more complex and different than say, a 1290 ECU. Coober makes an ECU that clips in-line with the injectors, coils, and other bike sensors like most piggyback controllers so they're essentially just altering the tune as well. What's so different Coober?
Not really. based on coober and this is also what i found out, they are a standalone with extreme accurate system.
If you consider, they work for bosch, for avl, for ktm, i am 100% they know more about the 790 then we do. I guess they know they are unique with their stuff.
My biggest issue with Coober is that they were putting out a lot of pictures and graphs with no real context to prove their theories.
I guess, based on their facebook postings, there is a very thin line of giving information to the public and contract to OEM. But so far it looks the hit it, with claims they did.
All the testing i was able to do on a dyno, confirms their theory.
Their Facebook posts were pretty much scaring people into buying their product. Claiming a decat or another companies piggyback fuel and/or ignition controller will detonate an engine needs a little more explanation since it goes against long-established modifications to internal combustion engines.
But this is true, PCV does not work at all an, Duke decat does work but in a engine load range of 95%, this is confirmed by Akrapovic,, but not working on a regular drive base. On the ADV, decat does not work at all, the reason is the Bosch ECU and the engine design.
I guess most people are scared by companies who only try to sell you crap with false claims.
I'm sure their product works as advertised and works well (plenty of good reviews out there) but I'm the type of customer that asks questions and wants to know why things are the way they are. Seeing their claims really had me wondering what's going on with the 790 engines and digging for more info and clarification was met with a "We're engineers and you're not so you have to just believe what we tell you" attitude which didn't sit well with me.
Every time i had a question i call coober or send them a email, normally they answer in a day.
My theory is that yes, they work closely with KTM and do warranty engine inspections for them, but they also are selling a product. Having some blown engines laying around seems convenient enough to snap a few pictures, post them up, and claim a competitors fuel controller is the cause of the damage. The 790, being a brand new engine for KTM, has it's issues and there's reports of them failing while completely stock.
When i spoke with their tech at Eicma in italy last year, he told me they had 12 engines running parallel for data collection. The amount of time and money is huuuge, there is no such a tuning company doing this.
Coober, being closely tied to KTM, aren't going to publish factory defects or in any way blame KTM for the failures so the next easiest thing to do is to say some other outside modification is the cause. Working this closely with a manufacturer can bring upon some bias which doesn't always help the customer make their own informed decision.
Working this closely with a manufacturer means to me, they have more info then any tuning company, they are forced to keep the work serious and most important to me, if the manufacturer trust them, then i do it also. if you look to youtube and see the videos of tuning companies telling you crazy things, then i can understand why my dealer call them all, potential spare parts customers.
I have their ecu for over a year now and i am happy. Most of the friends and people i know moved from non worked pcv to coober, most of the ADV guys use it anyway from beginning on.
Not doing marketing here, having all the options on the table and being neutral to all tuning shops.
