DCR Camshaft Set??

shush319 · Aug 11, 2021

Anyone have any feedback on these, or dyno sheet proving their +6 hp gains?? Also curious what happens after the stock rev limiter, since the PowerTronic lets me set it to my liking. Price is a bit spendy, but the added HP could actually be beneficial, I wouldn't find the need to wring it's neck as much with the added hp.... LOL, yeah right!

https://danielcrowerracing.com/i-22755378-ktm-390-duke-camshaft-set-2021-15.html

AMv8(1day) · Aug 13, 2021

Can’t actually speak to these camshafts, but I know that the company was called out in the past for making big promises on their 390 cam kit and failing to deliver. Including holding a customer’s bike for months with no progress beyond an initial dyno pull.
It may have been on the RC390 forum, but shouldn’t be too hard to find.

I would really like to see a quality 390 cam option though. I haven’t found anyone else currently offering a kit that would broaden the power curve past 9k. Making companion upgrades like titanium valves, retainers, etc. kind of pointless beyond “while you’re in there” peace of mind.

I’m sure a fully built, potentially 3mm overbored 390 could make 60+ BHP, but without a cam upgrade, it isn’t likely to be usable.

Personally, I’ve got a Husqvarna Vitpilen 401 that I’d love to see keeping up with the 650’s…
Really embarrass those “No sub-500cc bikes allowed” elitist clubs.

1jzsupra · Aug 13, 2021

They use to have springs but they stopped making them.

AMv8(1day) · Aug 14, 2021

1jzsupra said:
They use to have springs but they stopped making them.

Do you recall whom made the springs? I would bet that an equivalently specced model could be found. I would reach out to Chad, but I haven’t seen any activity from his accounts in over a year.

1jzsupra · Aug 15, 2021

AMv8(1day) said:
Do you recall whom made the springs? I would bet that an equivalently specced model could be found. I would reach out to Chad, but I haven’t seen any activity from his accounts in over a year.

No information on the manufacturer. I know it was produced and sold to several companies. I wish I knew as I am also looking for a set.

duke200 · Aug 15, 2021

In order to have an opinion about a cam you have to know stock cam duration and lift so you can compare. Usually 15 percent more in lift and duration with proper fuel adjustment can add about 10 % power. So that make about 5 HP more at duke.

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mustu588 · 2023-03-14T12:22:14-0400

@shush319 @duke200

I checked their latest site/ page and found that they have added item specs:

https://danielcrowerracing.com/i-23175783-ktm-rc-390-radius-follower-cam-set-with-gears-2015-23.html

KTM RC 390 radius follower cam set with gears
.257"/.257" lift, 236°/236° duration, .006"/.006" clearance
2015-23 years model fitment

Rectangle Font Screenshot Parallel Software

shush319 · 2023-03-14T14:02:06-0400

mustu588 said:
@shush319 @duke200

I checked their latest site/ page and found that they have added item specs:

https://danielcrowerracing.com/i-23175783-ktm-rc-390-radius-follower-cam-set-with-gears-2015-23.html

KTM RC 390 radius follower cam set with gears
.257"/.257" lift, 236°/236° duration, .006"/.006" clearance
2015-23 years model fitment

View attachment 56092

Spec were listed in the screenshot I originally posted, looks like duration changed though....... They are cheaper now also

mustu588 · 2023-03-14T14:10:15-0400

shush319 said:
Spec were listed in the screenshot I originally posted, looks like duration changed though....... They are cheaper now also

I just checked your screenshot again, it does.
The link is a new link though.
I might go to the Malaysian market here, and see if I can find aftermarket engine parts here.

shush319 · 2023-03-14T14:58:17-0400

mustu588 said:
I just checked your screenshot again, it does.
The link is a new link though.
I might go to the Malaysian market here, and see if I can find aftermarket engine parts here.

Was just poking around and found this, which seems a better choice all around it everything was done right. KTM DUKE/ RC 390 COMBO PACKAGE – nmwracing.com

shush319 · 2023-03-14T15:11:49-0400

Even crazier, 408cc BBK, with everything but a tune...... KTM DUKE / RC 390 POWER PACK PERFORMANCE KIT BY NMW RACING – nmwracing.com

1jzsupra · 2023-03-14T18:19:28-0400

Interesting. I actually just installed a set of those DCR cams.

shush319 · 2023-03-15T09:40:49-0400

1jzsupra said:
Interesting. I actually just installed a set of those DCR cams.

Notice any improvement with the cams?

mustu588 · 2023-03-15T13:31:11-0400

1jzsupra said:
Interesting. I actually just installed a set of those DCR cams.

What was the result?

Noeserd · 2023-03-16T12:11:25-0400

shush319 said:
Even crazier, 408cc BBK, with everything but a tune...... KTM DUKE / RC 390 POWER PACK PERFORMANCE KIT BY NMW RACING – nmwracing.com

bet it would push close to 60hp with the right tune

JingalalaHoe · 2023-03-16T23:36:41-0400

shush319 said:
Even crazier, 408cc BBK, with everything but a tune...... KTM DUKE / RC 390 POWER PACK PERFORMANCE KIT BY NMW RACING – nmwracing.com

These NMW folks are pretty famous for their 2 stroke drag bikes, I'm not sure how competent they are with 4 strokes.

I found a video with the 390 camshafts, it looks like they have different options regarding decompressor and duration/lift. Maybe its worth prodding them and see if they can share specs of all the variants they have.

1jzsupra · 2023-03-17T14:15:11-0400

mustu588 said:
What was the result?

In progress. Still getting the tune down and then I'll give it some more power pulls

1jzsupra · 2023-03-17T14:16:43-0400

Noeserd said:
bet it would push close to 60hp with the right tune

I wonder if there is any info on springs and retainers. That is really the main thing that concerns me on my setup

DCR Camshaft Set??

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