1290 Super Duke - 990 - RC8 - Super Charger Project (SC16)

Hi guys just finishing the SC16 project ( super charged 1290 Superduke) just having high tensile rods and low comp Pistons made... Can't work out how to post the pics so check out http://www.urbanracer.net for build photos..full kits should be available feb / March next year.. I've also put into production my high level de cat exhaust system..

upload the pics to photbucket and then use the link option. post the link on here as an image and then it's job done

Outstanding! Blower on a 1290 will be insane! Any idea what the kit will cost? Look forward to seeing the project progress and what it does on the dyno.

Wow comrade: Would love to see more photo's with technical stuff like how you are driving the blower...

I suspect this thread is going to grow like topsy.

Any idea of how strong the internals are on the 1290? What do you think the safe max output is?

Hope the link works...

Hi guys the internals are going to be changed just in case, high tensile rods are in production as we speak , low comp Pistons should be with me early January, anybody racing the 1290 will shortly have the option to purchase F1 designed con rods to strengthen there bottom end... The caterpillar drive system for the charger has been designed to allow the drive pully ratio to be changed as and when required by the rider.. Just like the gear cogs on the drive chain... At full chat the charger is turning at 247,000 rpm...This system allows for alternative boost so if you didn't want to change your pistons and rods you could just run very low boost... But if you're keen on full boost with engine internal conversions (rods and Pistons) it is calculated to produce 225-250 bhp at the rear... I could go higher with a larger charger but then you loose the stealth look with the charger hidden under the tank and now your talking introducing charge coolers / inter coolers which again de tracks from the look of the bike.. All the best John.

If anyone can rewrite the ECU John @ Track Electronics can.

Ta CK.
Duly noted. Good prices too.

http://www.hilltopmotorcycles.co.uk
Geoff has some good results from flashing the 1290 ecu but it does leave a footprint and as soon as it connects to the dealer network it informs KTM that you have tampered with the ECU.
Better results can be obtained with up rating the fuel pump and larger injectors running a pc5 maybe another 10bhp at the top end and smoother power curve again with a straight through pipe... But without piston, valve and head work you ain't gonna get a lot more... So the cheaper option for bulk power is a supercharger... Strengthen the bottom end and fit low comp Pistons.. Easy ..if you go down the turbo route you start looking at charge cooling and the potential of the splines / fins on the turbo shearing and finding there way back through the inlets and into your Pistons .. ( turbos run hot !!!) Bang bang oh fook... Super charging is far the safest option for easy power.. When you put the engine back together after splitting the cases to fit the up rated con rods in... You blue print the engine so you know for yourself that's it's spot on... Don't forget it's a V Twin and not a screaming 4 pot

I had my Ducati 1098 Streetfighter blue printed. Gained 20 bhp with a custom map. That's from a lightened flywheel, extra 500 rpm to the limiter, skimmed and ported heads and revised cam timing. The shape of the curve is more important than the numbers though.
10 bhp gain at the top end for a remapped 1290 SDR sounds reasonable. There's some silly claims floating around on internet land about the gains from remapping. The Duke fuels pretty good to start with. You can only make it run right on a dyno, you can't make it run better than right without hard engineering.

I was thinking about a DNA/MH air filter, remap etc etc when the warranty expires, out of habit really because I've done that with my SMT. I'm not worried about upsetting kTM once the warranty is up. But Having done 9000 miles on my SDR since buying it in March I've got a pretty handle on it and I don't think the Duke is stifled in the same way the 990s are and I wondering if its worth spending the money. A charger on the other hand....

I would like to restore a 1:1 throttle ramp though and I didn't know who to believe about who can and who can't overwrite the ECU.

Urban - Yeh I get the pain in the ass stuff with turbo's thats why I was working on the supercharger idea but you are further down the track because I was still in the planning stage.
I thought long and hard about trying to hide as much of the assembly as possible and it was always a bit messy - I like your solution., its just a shame that we are still stuck with the drive system. Hopefully one of these days the electric SC will be developed enough to be capable.
At one stage I got to thinking "feck trying to hide everything" and just put the charger directly up top between the cylinders and run 2 big single throttle bodies vertically and just make a new ally tank with cutouts each side to allow for plumbing. That would look pretty wild.
Its kind of good that someone else has to do all the hard stuff as that always make it a bit easier for those that follow. Still a good effort mate and well done to you. I hope the ecu interface doesn't turn into a massive pain in the ass, thats the bit that I was most concerned about.

Gimlet - if you could map the throttles at a 1:1 ratio the bike would likely be unrideable without TC and with it on it would be constantly flashing in your face! Just looking at the stock ramp angles tells you that. Be careful what you wish for
There is heaps of potential in this bike once the ecu is truly cracked well beyond just AF/r's but that usually means a lot of data built up over a long period of time. Its a lot more than just cracking the ecu for fuel and ignition. Happy days!

Have you guys seen the Lantto Racing RC8 build? If you type Supercharged KTM RC8 on youtube you will see that it has the same power output to the supercharger as urbanracer is going to build. (Through the magneto/strator case)

My Ducati produces 162 bhp and 90 lb/ft of torque at the rear wheel - so on a par with a standard 1290 - and that has a direct cable operated throttle. It feels more controllable than the Superduke because noting gets lost in translation and you can feel every fraction of throttle movement through the seat of the pants. I feel move confident of putting the power down because I can feel what its doing in real time. There's a communication delay with the KTM which I'm assuming (?) is down to the throttle. The Ducati has no TC and no ABS and to be honest I don't miss it. I keep the MTC switched off on my SDR. .

See ignition system page of parts fiche - http://sparepartsfinder.ktm.com/Views/Shared/Page.aspx

Carbon fibre covers would be nice but as always the challenge will be making the design suit the SDR.

I'd quite like to be able to see the belts and pulleys. I'm guessing any kind of even partial exposure to moving parts that close to the rider's legs would be an MOT issue, so what about a transparent cover like the ones Rizoma make for Ducati cam belts and dry clutches?
Orange anodised or carbon sides and a see-through face panel. Quite like the idea of crinkle finish on painted bits too.

Hi guys in regard to the power take off on the 990 it looks similar to the design of the 1290, you could stil machine side casing and Strator mount to accept support bearing and lengthen the lock up bolt to get a drive... That bits easy
On the side cover I was thing of a orange trellis frame to mimick the engine frame with either a carbon cover or plastic, but carbon would easier to mould.. The trellis frame would also offer better protection in case of a crash and the cover could just be replaced as a cosmetic option... Or just naked trellis..

1290 EMPTY. ..Engine Block

On talking to my ktm tech it looks possible to build a charger kit for the 990 SD/SMT/SMR and the later RC8 using my power take off idea... The only difference would be the build and design of the plenum for each model..

Does anybody know the flow rates of the 990 injectors ?? And ohm rate ?? Regards John.

First draft of the Arrow con-rod design for the 1290..