• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

PCV...to autoune or not to autotune, that is the question

Coffee said:
Let me guess, Ty Davis is now a Dyno Jet dealer...
Click to expand...
Haha, I believe Zip-ty is. We do have full dyno services now too.

I would of responded earlier, but I have been mobile all day. I have been thinking about the ecu on the 449/511 platform and I have come to the conclusion that I don't believe it is the maps that are the issue as much as I think the Keihin ecu is just faulty. I don't believe that any map change from BMW or Husqvarna could of solved the flame out issues. The JD unit is an awesome unit, definitely the best bang for the $$ and can lessen the poor performance from the stock ecu, but because it amplifies a signal coming from a faulty ecu unit it too will not be 100% as reliable as swapping out the entire ecu like adding a PCV.

So should you use an Autotune with your PCV? If you can afford to, then yes. What Ty did on the race bikes, 511 and the 310's, is he built the map on location using the auto tune and then removed it for racing. You also have the option for dual maps, so you can switch between Autotune and map2. Is it worth the money? Dyno services typically cost around the same money, so yes, it's definitely worth it.

I will ask Ty for his racing maps for the 511 and 310s and permission to give out to CH members.
 
Tinken said:
Haha, I believe Zip-ty is. We do have full dyno services now too.

I would of responded earlier, but I have been mobile all day. I have been thinking about the ecu on the 449/511 platform and I have come to the conclusion that I don't believe it is the maps that are the issue as much as I think the Keihin ecu is just faulty. I don't believe that any map change from BMW or Husqvarna could of solved the flame out issues. The JD unit is an awesome unit, definitely the best bang for the $$ and can lessen the poor performance from the stock ecu, but because it amplifies a signal coming from a faulty ecu unit it too will not be 100% as reliable as swapping out the entire ecu like adding a PCV.

So should you use an Autotune with your PCV? If you can afford to, then yes. What Ty did on the race bikes, 511 and the 310's, is he built the map on location using the auto tune and then removed it for racing. You also have the option for dual maps, so you can switch between Autotune and map2. Is it worth the money? Dyno services typically cost around the same money, so yes, it's definitely worth it.

I will ask Ty for his racing maps for the 511 and 310s and permission to give out to CH members.
Click to expand...
I called ZipTy and talked to the kid about 10 months ago and he told me they couldn't get there bikes over 90 mph, I'm assuming that's in the dirt using pcv . Find out what's up with that too.
 
Rearwheelin said:
I called ZipTy and talked to the kid about 10 months ago and he told me they couldn't get there bikes over 90 mph, I'm assuming that's in the dirt using pcv . Find out what's up with that too.
Click to expand...
That's interesting, Ty took my decatted 511 to 97mph on race map 2 only. My new exhaust allows me to go to 115 and still only just the power plug in. I did find one thing odd about the experience and that was with the decatted exhaust w/o spark arrestor in, I had constant flame out issues, once I flamed out 8 times in only 2 miles. After I added the megabomb header, the flame outs nearly disappeared. Once I add the pcv I will be able to not only eliminate the flame outs, but I will be able to smooth the powerband at 250rpm intervals.
 
Tinken said:
That's interesting, Ty took my decatted 511 to 97mph on race map 2 only. My new exhaust allows me to go to 115 and still only just the power plug in.
Click to expand...
At what rpm is your engine turning ??? On a dyno jet at the rev limiter with 15-45 gears my bike spun 117 .... So to say your bike hit 115 I say what's your gearing.
 
The 97mph was with 15/51 on the rev limiter and the 115 was 15/43 on rev limiter (not on a dyno). My current top speed is about 65mph to the rev limiter (13/51 haha actually I haven't checked for reals).
 
Tinken said:
The 97mph was with 15/51 on the rev limiter and the 115 was 15/43 on rev limiter (not on a dyno).
Click to expand...
" like"...... If you need visual proof of the 115 mph claim with no handicaps and are ready to start a campaign against blowing smoke up people's asses !..... :)
 
Tinken said:
That's interesting, Ty took my decatted 511 to 97mph on race map 2 only. My new exhaust allows me to go to 115 and still only just the power plug in. I did find one thing odd about the experience and that was with the decatted exhaust w/o spark arrestor in, I had constant flame out issues, once I flamed out 8 times in only 2 miles. After I added the megabomb header, the flame outs nearly disappeared. Once I add the pcv I will be able to not only eliminate the flame outs, but I will be able to smooth the powerband at 250rpm intervals.
Click to expand...

Interesting, my 2011 TE511 with stock gearing tops out around 85 mph. That's maxed out. Isn't the tranny or gear ratio what ultimately determines how
fast your bike will go regardless of what engine mods you have ? Maybe with the KTM ownership the next generation of TE's will have wider gearing instead of
this rediculously close ratio box that these have.
 
jerbear610 said:
Interesting, my 2011 TE511 with stock gearing tops out around 85 mph. That's maxed out. Isn't the tranny or gear ratio what ultimately determines how
fast your bike will go regardless of what engine mods you have ? Maybe with the KTM ownership the next generation of TE's will have wider gearing instead of
this rediculously close ratio box that these have.
Click to expand...
You can get 97 with 15-51.... Your EFI is running your bike rich on top end , when you lean it it will pull 97
 
ascribner said:
This is also another alternative. I have used AEM in my track car. Very nice unit.

http://www.aemelectronics.com/engine-management-systems-9/plug-play-powersport-f-ic-4-59/

I am going to call AEM about this unit later today

http://www.aemelectronics.com/engin...ne-programmable-engine-management-system-90/#

555555555...no! I just looked at the price.

p.s. Special bonus prize to anyone that can tell me what the '555...' means.
Click to expand...


5 ft-lbs , 5hp , 5 mph is all you get for $555 .... What's my prize
 
jerbear610 said:
Interesting, my 2011 TE511 with stock gearing tops out around 85 mph. That's maxed out. Isn't the tranny or gear ratio what ultimately determines how
fast your bike will go regardless of what engine mods you have ? Maybe with the KTM ownership the next generation of TE's will have wider gearing instead of
this rediculously close ratio box that these have.
Click to expand...
My bike topped out close to 87 with stock big can. When I installed Randy's decatted big can, Ty took it out and did 97 to the rev limiter. After I installed the FMF megabomb + 4.1rct + slight gear change, I was able to push it to 115 or so. Backpressue is a big thing on these bikes, it needs it down low, but not on top and that is what the bomb header does for me.
 
Depends on how high of altitude. When we raced the 511's and 310's we used an auto tune at high altitudes to set the maps, then removed it.
 
I've been running PCV/AT... my riding buddys run JD.
My take is this... Trail riding- JD... easy to adjust on the fly, effective... Racing- PCV/AT... you can adjust everything and anything... but only with a PC, very effective.
That said I do like my PCV/AT set up... tunes the entire throttle range, and has an accelerator pump setting... wish I had a PC though... not Mac compatible (seriously!?).
I have a fuel economy map and a power map developed for my bike and area. Both are on to the machine.
 
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