Horse Power FE501e

Around 50

morris

eric is playing with you. that is a fully tuned machine. i believe the standard 501 was something like 38 rear wheel horse power.

regards

Taffy

Taffy said:

morris

eric is playing with you. that is a fully tuned machine. i believe the standard 501 was something like 38 rear wheel horse power.

regards

Taffy

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I wasn't joking, this graph was done with a stock carb and exhaust, how much tuning could have been done? Only 38 ya think? .......huh...........if you say so.

well you know dale!

he's a lad hey!

if we're talking knobblies and a standard bike it would be 38.

regards

Taffy

Wow taff if me 501 only has 38 bhp then your 400 must be in mid 20's after riding yours last year in iom
regards gruntunberg

my bog standard FC470 with an FCR39 had 46bhp at the wheel so I'd expect high 40s low 50s for a 501

RWHP

Depending what dyno you ride in, i would guess that a average RWHP for a 501cc would be 46-49 RWHP.
We have on the dyno we use, 53RWHP on the 628cc stock engine, when we take it from the crate. ( we dont use these small 350-500cc engines)
But i would say that this is not importent on a 501cc Enduro, caracteristics and handling would be the thing to look for.
If the reading would be 40-50-60 HP, what will you do with these figures if you are not planing to modifiy the engine????????

Regards
Thomas

I haven't dynoed my 98 501 but seat of the pants tells me it puts out a similar amount of HP to a modern KTMYamHonHawSuzi 450, maybe a couple less. What it does better is grunt. Properly setup Bergs have no 'hit' in the power band, with torque off the bottom just a linear pull from idle to max, so no surprises. The 501 out torques 450s which means fewer gear changes and a more forgiving, easier ride. My 650 has 63 dynojet hp and I'd guess my 501 is about 40, but the bottom of the curve wouldn't be that much different.

Steve

spiney said:

my bog standard FC470 with an FCR39 had 46bhp at the wheel so I'd expect high 40s low 50s for a 501

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knobblies or road tyres vorman?

regards

Taffy

Taffy said:

spiney said:

my bog standard FC470 with an FCR39 had 46bhp at the wheel so I'd expect high 40s low 50s for a 501

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knobblies or road tyres vorman?

regards

Taffy

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road tyres. On X Bikes dyno at Kings Lynn. Still got outdragged by CRF"450"s on the start/finish straight at Cadwell though :roll:

ok the 501 probably produced the same peak as the 470 but more torque. 46hp with a jetted carb would be 44 standard and rich. the knobbly is worth three for sure making 41hp.

hp is about the same as a modern 450 which i see produces 46 or so.

i guess 38 could have been 40-42 to be fair but i don't think any more.

regards

Taffy

dudes, if your 501 puts a smile on ya dial,who cares how much hp
if it dosnt put a smile on ya dial get a 650.

steve said:

I haven't dynoed my 98 501 but seat of the pants tells me it puts out a similar amount of HP to a modern KTMYamHonHawSuzi 450, maybe a couple less. What it does better is grunt. Properly setup Bergs have no 'hit' in the power band, with torque off the bottom just a linear pull from idle to max, so no surprises. The 501 out torques 450s which means fewer gear changes and a more forgiving, easier ride. My 650 has 63 dynojet hp and I'd guess my 501 is about 40, but the bottom of the curve wouldn't be that much different.

Steve

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Hello steve,

Can you please tell me what had you change to your FE 650 and produce 63 HP?I own a 07 FS 650 with complete exhaust,racing filter(DNA something like KN) and a Denso irridium sparkplug.I like to know "where am I"

Enginehardware is right!Dyno from dyno shows different amount of power!In Greece this is a drama.Most of the people belives that the dyno guys had tune the dynos for showing more power to their customers............I dont know if this is true or if you suspect the same to your country,but this comfuses me a lot.I know that even the weather and the humidity is important parameters.

And now something strange:A friend of mine gets to a dyno,here in Greece before 2 months,to adjust his tuned crf 470.The resault was 54 HP.The strange thing was that the dyno guy told him that the amount of HP could be more if he didnt have slick tyres 8O .What a **** is going here,is this right?

Thanks
Regards sotosberg

Sorry for any mistakes

Hi sotosberg,

What mistakes? I wish I could speak any other language let alone write it half as well as everyone who participates here whose first language is not English.

Here is a plot of my 650 dyno curve http://www.husaberg.org/index.php?set_a ... _photo.php

You'll note its 43 hp, not the 63 hp I quoted. That because the dyno that the tuning was done on is a dyno dynamics and not a dynojet. The dyno operator quoted the 63 DJ hp to me for comparison. Dynojets are cheap and only work on full throttle, whereas for tuning to make it rideable, part throttle is nice to have too. The DD does this, but its peak numbers are not directly comparable. DJ numbers are what people generally quote, so that is what I mention too. The reality is that a dyno is a tuning tool and the value is the before and after result.

My bike has a modified end cap on the stock muffler, more or less now straight through and marginal for noise, but OK, just, and jetted to optimum. I haven't stripped the carb yet to have look. It is seriously fast though and scares the crap out of those who try it. It is however perfectly controllable and linear i response, just lots of it, I love it. cafey18 and MeDogRocket that I know of have also had theirs done on the same dyno by the same tuner.

The reality is forget about the numbers, and worry about how good the tuner is and the difference achieved between before and after tuning. I didn't think it was slow before, but now it launches through an indicated 160kph with me sitting up in the breeze.

Steve

Hi Steve,

I think you are right about dynos.They used more for adjusting-development and less for seeing the final output of the engine.But really,its hard for me to believe that your monster fe 650 is only 43 hp.You see,a local magazine had a test with all 450 enduros and for the Husaberg fe 450 the dyno rought 43,1 if I am right.Nevermind,different dyno............ :wink:


Regards sotosberg

And note that before tuning, the standard, but Lineaweaver kitted carb 650 put out 33 hp on the DD dyno. After tuning, 43 hp, 30% increase with end cap and jetting. I had to back the AP off to get rid of the snap to make it rideable. That is the value of the dyno as a tuning tool, a 30% increase, but it is only as good as the tuner. Forget the absolute numbers, look at the shape of the curve and the before and after changes

Steve

That is a very good result buddy!!!I understand for what you taking about.Dales jet kit must be very good,I am thinking to buy it also

Regards sotosberg