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October 25th, 2015, 03:57 AM   #11
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If FP engineering can work with that unit so can we. I was curious about maKe's software setup so we know what might be unstable.

Last edited by jon andersson; November 10th, 2015 at 11:19 AM.
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October 25th, 2015, 06:21 AM   #12
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I am curious on how the bike feels with the stock ecu (modified by fp engineering for big TB).
Make are you running the bike with this ecu yet???
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October 27th, 2015, 10:06 AM   #13
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I beleive I read somewhere, while vacuuming the net for info, that make's tuner said it would cost too much to have him getting the softy to work rather than tuning. Im confident in what FP offers plus Im used to computers so Ill make it work, add I dont have an hourly rate to consider as Im tuning it myself in my dyno.

So if I may, I will go on with the thread for now and report back on the ecu and its software once I tried it out thoroughly, fair enough?

Today the Doma exhaust arrived, looks good to me on the floor, fitment is unknown at this point, but I will report back once I tried fitting it to the bike.

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Last edited by TomTom; October 27th, 2015 at 10:09 AM.
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November 3rd, 2015, 11:06 PM   #14
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Originally Posted by HusaBELGfs570 View Post
I am curious on how the bike feels with the stock ecu (modified by fp engineering for big TB).
Make are you running the bike with this ecu yet???
Too damn cold out here to ride (below zero on some days) and when it gets close to 10c it rains for a whole week.

Today and tomorrow looks promising... I'll have to rig up my wideband and logger on the bike before going for test ride. Wanna see how the afr's compare to my ecu so I don't make false conclusion if the performance is changed.
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November 4th, 2015, 08:56 AM   #15
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TB arrived

Edit: Measured it and the blade is 50mm and then tapers down to 46, so its a 50mm TB.

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Last edited by TomTom; November 5th, 2015 at 12:44 AM.
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November 5th, 2015, 01:29 AM   #16
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Have fun modifying the airbox for it to fit in.

My advice, cut a spare inner tube and use contact glue and some loctite 5970 or similar sealant when sealing up the hacked airbox.
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November 5th, 2015, 03:00 AM   #17
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Ill think of something no worries, its going to run in dust free environment (ice) so its not a biggie.
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November 5th, 2015, 03:21 AM   #18
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Originally Posted by TomTom View Post
Ill think of something no worries, its going to run in dust free environment (ice) so its not a biggie.
That helps a lot then. But it's still good to have air tight seal as much as possible to feed cold ambient air in.

I'm sure you have figured it out that you need to port the intake side quite a lot to blend in with the tb taper. If I remember right I had to use 990 intake boot.
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November 5th, 2015, 09:20 AM   #19
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Thanks for chiming in maKe, always good to get advice from someone that has been through it already.

I have the KTM 990 intake rubber ready on the table here yes, and obviously I need to make the head fit the TB, got that covered.

Regarding the box, imo there is no hot air on the outside of the engine as soon as you get above 50 kph, had a friend doing tests in a wind tunnel for a corvette and even under the hood of a car at 50 kph the airtemp was the same as ambient. If I could find a pod filter to fit Id go with that, dont think there is room for one though. Filtering is mostly for screws and such not being able to enter the engine, dont ask me why Im careful of that haha (not this bike though)

While at it may I ask what throttle cable you ended up using? I bought a 2-stroke KTM throttle grip and the wire for it, but the wire is too short on the TB side.
Edit: Throttle cable solved.

Last edited by TomTom; November 6th, 2015 at 08:35 AM.
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November 5th, 2015, 12:04 PM   #20
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Vortex ECU on my 663 is easy and flawless. Push the button on the program for a map change mid dyno pull and it will switch mapping in a second.
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