• 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 The previous version was outdated and no longer supported.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!

Need More Power - '09 SMR450

J

jaro51

Husqvarna
A Class
Long story short, I rode with a few other fellas on converted 450 MX bikes and they have WAY more power than my '09 SMR450. I have done the power up mods but haven't added a power commander or done any exhaust or motor mods yet.

What are the best ways to get more hp out of the Husky 450's? I wish i could say the Husky was the power king but the reality was that the Husky got destroyed in the power department.

My guess is that with a PCV with autotune, a new Ti exhaust system and MR9 race gas and I would be close to the MX bikes. The power difference was staggering, every lap with one of those guys behind me and they would storm past on the straight in a wheelie.

And they had stock motors. One was a '10 YZF450 fresh off the showroom floor out for it's maiden ride. It made the Husky look like a scooter.

I need more power!
 
Wasn't re-worked with iBeat since most people are saying the '09's map and fueling is pretty close and doesn't benefit greatly from an adjustment if it's left stock but in power up mode. Might be worth looking at though, just need to find a dealer close by that can hook it up and do some testing on it.

Thanks for the replies, keep them coming!

I'm just sad that the bubble I was living in thinking that the Husky was a powerhouse has popped :cry:
 
The stock exhaust is a big killer, and it's heavy. My 510 still isn't light but with an 08 single exhaust/arrow power up muffler and dynojet autotune its faster then 450s and still has the stock long gearing.
 
jaro51;117932 said:
.........I'm just sad that the bubble I was living in thinking that the Husky was a powerhouse has popped :cry:
Click to expand...
Atleast you can ride it to the gas station. Plus when the jap bikes go boom you will motor right by them :)
 
What is better? The PC 3 or PC 5? If I can get a used PC 3 for a good price ($150), would I be happy with it, or should I hold out for the PC 5 and autotune?
 
I have the 3 on mine and had it dynotuned where we built a full map and its great! If you dont plan on dynotuning the bike I would go with the 5 because you'll pretty much be guessing with the 3 and the 5 will tune it for you.
 
craigs449;118037 said:
hate to threadjack, but wouldn't I need the autotune also for the PC5?
Click to expand...

Yes you would. PCV is basically smaller/lighter and offers more features then the PC3, including the separate autotune module which works great.

The autotune modules are also universal, so you can share them if you know someone with one.
 
Jaro. I sold a guy a Leo Vince full system for his 510 and he tells me that the bike absolutely rips with it. I think that the cats in the mufflers really slow the bike down.
 
One thing you have to remember about the SMR, they were street legal which means a little under-tuned & made for longevity compared to the Japanese MX to SuMo conversions. Jap bikes have very light engine components which in turn must be replaced regularly & are expensive. They have very little flywheel weight so they rev a little faster, Ti valves, no catalytic converter in the exhaust, lighter pistons, ect. So to get on a more level playing field, get a full race exhaust, I've been very happy with my Ti Leo Vince header & muffler, but all the other options out there are better than stock in performance & weight. There has been some discussion about the metal backfire screen in the air box, I cut mine out long ago because it is a restriction to the airflow to the intake....Your bike is fuel injected? Smoothing out the intake side of the throttle body could help find some power, you want the air entering the Throttle body as smooth & un-turbulant (is that a word?!?!?) as possible. If money is no issue, a hi-comp piston & some head work(lighter valves, port & polish the head & you could install a TC 450 flywheel weight or aftermarket equivalent) would give great results but more maintenance. Finally, have the EFI re-tuned no matter what changes you make, getting the right combination of air & fuel into the cylinder is crucial to making the most power. Get the Power Commander so that changing the maps in your EFI will be much easier.

A dynamometer is the best way to see changes in performance but if you can tune at the track, do it. Also, think defensively at the track when you feel any pressure from behind, I don't GIVE a line to anyone, if you want to pass me, it may be on the gas, but not the brakes as I will do everything I can to get the best line, lay off the brakes as long as I can & get back on the gas ASAP.... I hope this helps & Good Luck
 
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