Rated Horsepower

[randazzle]

Anyone have any information about the rated HP for a DL650?
Thanks

[greywolf]

How about measured? http://www.mcnews.com/mcn/model_eval/VStrom05B.pdf#search=%27dl650%20060%27

[Kcwiro]

From review I read as 65 BHP ... only 6hp under my 1980 GS750... love it...

[Black Lab]

Tested mine at a dealer open house.

http://www.stromtrooper.com/showthread.php?t=25756

[MTNAdventureRider]

65hp.....yep, that's what I am telling everyone!!!!!

[silverstrom]

I thought the HP dropped to 63 for the 07 model year when the new heads came out.

By the way, that's the same as my 1987 RZ350! :mrgreen:


SS

[PonchoV]

My 06 DL-650 w/ over 20,000 & a fresh valve adjustment w/ new iridium plugs & new clean air filter, 5w-40 rotella T w/ new oil filter sat on a dyno in St Aug & burped out 64.? hp forgot the tenth of a HP. Don't know how much to get excited or disappointed about the whole thing. The guy said this was at the rear wheel & he suggested all the above listed things do make a difference.
Forget the name of the company but they go around to the different dealers & set up on a wknd during one of the dealers special events. Cost was $30.

[Jimding]

Hot Rod magazine did a story on dyno's a while back, and the gist of it was, they're fine for comparison purposes when tuning, but pointless, in most cases for getting an actually accurate power reading. The traveling dyno's generally use inertial resistance to infer horsepower, relying on tire friction and accurate time and rev measurements, along with drum mass, to compute power. Fixed dyno's can use resistance brakes (water, magnetic, or other) and a strain gage to measure torque, which can, with RPM, be used to compute actual horsepower. Different air temps, densities, and humidities will yield different power figures, and there is little consistency between different dyno's. Peak power is often less important than the area under the curve, especially for a street bike. As pointed out an RZ350 might make the same peak power, but I'd bet it is over a very narrow band of revs, which would make it a dog in a relatively heavy bike like a Wee. A broad spread of power tends to make the bike more friendly to ride and quicker, although a peaky power band can feel more thrilling when the engine hits the power band. Unless the engine has poorly designed systems (induction, exhaust, valves) increasing peak power usually narrows the power band, perhaps useful for racing, but not productive for the street. It should also be noted that the inertia dyno's measure fairly instantaneous 'power' (hence 200 HP Harley's) but do not indicate the ability of the engine to produce this power for more than a few seconds. OK for drag racing, I guess, but disappointing in extended usage.

[Rashnak]

My dl1000 hit 87 hp on the dyno at sea level.

[daddymakk]

"(hence 200 HP Harley's) but do not indicate the ability of the engine to produce this power for more than a few seconds. OK for drag racing, I guess, but disappointing in extended usage." made me laugh.
I've been saying that for years. My HD pals always talk about torque but it takes so long to arrive.
Thanks for the dyno info. I did not know that about them.

[MTNAdventureRider]

My dl1000 hit 87 hp on the dyno at sea level.



Yep, elevation is the real reason for differences. Naturally asperated gas engines, loose 3% per 1,000 feet above sea level.

So if my Math is right, assuming my Strom turns 62 HP at sea level.....only has 43 HP at 10,000 feet in Colorado.

[v wolf 1000]

guess what you get 2more .cant find my paper work. but it said 67hp. try google hp for dl 650.these bikes are fuel injected at least mine is elavation does not play a role . at least under 5000 ft. that dyno looks kind of old. susuki goes low on hp #s. it could be more . heck my kfx 700 says 49.4 sled 120. on title of origin edit my 1000 98.8 rear wheel with extras dialed in, this takes about 4 hours . i went to a guy that races in eping NH. tweaking he said. he races a gsxr. an a harley . this guy is always at least 2 months out . an is good as we wound out 140mph 107.8 rear wheel . you can put a bottle on a 250 four wheeler an make it go 100mph .course the engine wont last long. oh its true

[hotshoetom]

67 hp is the magic number for 07 and 08 dl650...not sure about the earlier models