[53hp stock at crank!!] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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53hp stock at crank!!
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Posted by: GE4x4

According to the California resource board, the 700XX has 53hp at crank. Not to bad.700XX HP

Posted by: mcleod

im not very impress... since it's have a huge bore compared to 450R and it's have EFI for this lil' hp gain

Posted by: 07trx400ex

Heres a list of some comparable hp numbers.
It's laying down the hammer if you ask me.

08 250ex: 16.8hp
08 300ex: 22.1hp
08 400ex: 34.2hp
08 450r: 42.6hp
08 700XX: 53hp
08 KFX450r:42.1
08 KFX700:48.8
08 Z400: 36.6hp
08 Ltr450: 41.6hp
08 Raptor 250: 18.8
08 YFZ450: 38.6hp
08 Raptor700r: 46.9hp

Remarkably, it is making at least 10.4 more hp than any 450 and 7.1 more hp than than Raptor 700r while a modest 4.5hp more than the automatic KFX700 with the mighty V-Twin.

The numbers of from the California Environmental Protection Agency.

http://www.arb.ca.gov/msprog/onroad...y/2008/2008.php)

Posted by: FoxHondaRider

I assume all these numbers are at the crank. They are too high to be at the wheels. Still its beast... its a Honda... and it IS better than the other big bore models out there. I think if it lost the IRS more would become attracted to it.

Posted by: reconranger

This engine should be all about rev, similar to the 450's! It is unlikely to be a torquer, seeing it has a little slipper piston with low reciprocating weight.

Horsepower doesn't mean much if it isn't accompanied by the torque curve!!!

Posted by: blbraptor

Well you are certainly on to something there recon if what I have heard is true. Apparently the XX's engine is "sluggish" and stalls very easily when you bog it down. If this is true, this is not going to be the great trail quad that it was intended to be. Very disappointing if you ask me. I guess we'll see pretty soon as they should be on the floor next week and the magazine guys have already had them.

Posted by: #17YFZRACER

quote:
08 250ex: 16.8hp
08 300ex: 22.1hp
08 400ex: 34.2hp
08 450r: 42.6hp
08 700XX: 53hp
08 KFX450r:42.1
08 KFX700:48.8
08 Z400: 36.6hp
08 Ltr450: 41.6hp
08 Raptor 250: 18.8
08 YFZ450: 38.6hp
08 Raptor700r: 46.9hp

the yfz makes more than 38.6 and the raptor doesnt make 46.9 stock. but seriously 38.6 YFZ...come on

Posted by: 07trx400ex

http://www.arb.ca.gov/msprog/onroad...y/2008/2008.php

Look it up for yourself man. please back your answers up with a little more than "come on"

These numbers are from the .gov link above.

If you know the engines displacement and can convert then kw(assuming you can do that) to hp then that is all the verification you need.

You must become a victim of the common perception that hp is the ONLY variable involved in a vehicles performance.

come on

Posted by: mcleod

quote:
Originally posted by 07trx400ex
Look it up for yourself man. please back your answers up with a little more than "come on"

http://www.gtthunder.com/sitebuilder/images/trx450rdynorpm-650x487.jpg

41.2 hp here for yfz...

so your number isnt that goods... hehe

Blue = YFZ
Red = TRX

both 2005 if i remember

Posted by: #17YFZRACER

quote:
41.2 hp here for yfz...

so your number isnt that goods... hehe

thanks

ill find an 06+ dyno sheet and it will be even better than 41.2 not that 439cc

Posted by: 07trx400ex

I don't want to get started on the differences in dyno's. I see it has Laz's name on it, but anyone can whip one of those up in five minutes. I am not trying to bash anyone's ride.

I posted results from a non-biased third party hoping it would be a good reference point. If you have a problem with your yfz's numbers maybe you should contact the California Environmental Protection Agency.

Heres their number: (800) 242-4450

Posted by: UNBROKEN

yea those numbers seem off the 400ex makes 25 stock not 34

Posted by: 07trx400ex

Typically a street bike will lose 15% at the wheels so it should be even more with increased reciprocating mass on a quad.

Posted by: hotrodhonda400

quote:
Originally posted by UNBROKEN
yea those numbers seem off the 400ex makes 25 stock not 34

it makes 34 at the crank and 29-30 to the rear wheels....

Posted by: RATPACK Z400

It may have more HPs than other quads BUT the weight will be an issue it weights 508 pds the 450s are around 360 pds thats a big difference 10hps wont be able to over come ! And when it is tested Im sure its going to have the same problem the can-am had it cant be ridden as fast as the others cause it will buck you off on rough terrain.

Posted by: Def-e-nition

Atv riders have already Tested it , and walked away impressed by it . Frankly I am surprised that the tester commented it to be one of the fastest Stock quads out there , as I too noticed the 500 Pounder weighing in ...

Finally , we have a 700 in our midst with wings . It aint perfect , but it aint bad either .
As to the Looks - errmmm.... Look , I'm not pretty either , but I Know how to get the job Done . That front sweep from the fenders around the Radiator is ummm.. Interesting .

I am so glad this motor is Not the same one that comes out in the 700cc TransAlp Enduro. slow , sluggish , lethargic .Not my first choice .

Posted by: TRX450R014

The 508 lbs is the curb weight....I guess Honda is going to start listing their weights differently now.
Weights are normally listed as "dry weights"...no fluids,etc.

Once you add all the fluids most 450s are close to 400lbs....some are even more.

Posted by: Sick0

I also remember the factory saying the Z-400 was going to be over 40hp stock....
and back when the 400ex came out, it was reported to be as over 40hp.... dont beleive the hype...

At the radar run around here, the honda's were quit a bit slower the my yfz and a friends raptor ( about 7mph). quads were equally set up. n
Everbody was surprised the '08 450r was 7mhp slower than a my '06 yfz that had 3yrs of with out never being rebuilt.
so its hard for me, its hard to see how the 450r has 6 more yfz...

Posted by: slomofo

i wonder what type of easy and inexpensive electronic bolt-ons there will be, kinda like the cherry bomb for the LT-R.
the reason i ask is the LT-R makes 49.1hp at the rear tires with a cherry bomb, airbox lid off, and spark arrestor pulled from the stock pipe. if the honda can't do the same, why waste the time for all that extra weight.

Posted by: black_450

well guys i have rode the new 700 around the parking lot cause i work for the local honda dealership here and it does have some power-no doubt. It just didnt seem to have the power of my 450 but it does do wheelies on demand which i was suprised it did so easy but i didnt like the suspension either when i turned it feels real top heavy with the IRS but it should definately make for a fun trail four wheeler and the reverse is real nice as well.

Posted by: RATPACK Z400

We all have heard these statements before with EVERY quad thats come out from the all the mags and BS reports & reviews until someone in the realworld or not diehard or paid hondalover rides it we,ll half to wait for a real review on it.every quad that comes out is the best they NEVER tell you its junk,or how its rides bad, its always something to get you to buy it,then it never lives up to the hype.

Posted by: hungus07trx400

I agree. Its like going to a restaraunt and asking the waiter "How's the Veal"? Of course they're going to say its the best, because if they told you to just eat it on the toilet with the plate in your lap to save yourself the trouble of running to the restroom, you probably wouldn't order it.

Posted by: maddmatt02

quote:
Originally posted by slomofo
i wonder what type of easy and inexpensive electronic bolt-ons there will be, kinda like the cherry bomb for the LT-R.
the reason i ask is the LT-R makes 49.1hp at the rear tires with a cherry bomb, airbox lid off, and spark arrestor pulled from the stock pipe. if the honda can't do the same, why waste the time for all that extra weight.

I really dont see a LTR with cherry bomb, spark arrestor pulled from stock exhaust and no lid pulling almost 50 HP at the wheels....

when it takes the other 450's at least a full system, K&N, no lid, PCIII just to be in the mid-high 40's, and some even need a cam and bumped cr...

I cant say 100% it isnt happening because I dont have the money to buy that stuff and then go get it dyno's, but it sounds very unlikely. or the dyno took into account parasitic loss or whatever its called and gave you an estimated crank HP number.

Posted by: Jonas

I feel like I should have just let this thread go away but I couldn't quite leave it. Why don't some people take the time to read? The guy started out with saying the bike is 'listed' as 53 horse from the CRANK and there a bunch of comments after about how it couldn't have 53 horse 'from the rear wheels.'

First of all, I'm sure these horsepower numbers were submitted to the board by the manufacturer. The board does not likely have a device on hand that measures crank horsepower so take them for what they are (just a submission and not a dyno horsepower shootout.) The numbers don't seem that far off for crank numbers (let's say just for fun that they there is a 5 horse +/-, 48 horse from the crank for the new Honda would not be that bad.) Who's know exactly how far off because there are not many people out measuring crank horsepower to compare.

Next, I am not sure why we are comparing a LTR or any 450 with this quad being that it is designed for a totally different weight/performance/terrane class. When are people going to understand that is quad is not built to compete against a TRX450R??

This quad very likely has 53 or so horse at the CRANK. That makes perfect sense to me. If it's curve weight is 100+ more pounds than a 450 for instance then it will have to have 10-15 more horsepower, ROUGHTLY, to stay anywhere near in a drag.

Bottom line is that if you are happy with the 450's out like I am, but would like to see some imrovements then just wait for the coming years and they will improve them off the showroom floor. You could also just buy one and improve it to your liking with aftermarket parts. Why wait for Honda to come out with a sport quad with more power stock and great suspension stock with 1-2K higher price tag when you can just add those mods yourself NOW??

Honda is making progress in the 4-stroke sport catagory despite what some say. If they weren't, then all us 450 riders would still be riding our 92 TRX250X's with horsepower in the teens and 1992 styling. I think that this machine will please alot of people out there that are looking for what it offers. It is not for me, but will definately make many others out there smile.