AIKAB Harley prat

[jrandom]

This means the HP loss compared to the factory crank hp claims are around 40-60hp...that's ridiculous!

I said 15%. That takes 170 down to 144.5. Not a 40-60hp loss.

I'd love to read an unbiased article on them to see what's what. The factorypro readings seem lower than any other dyno readings I've seen.

If you're really interested, call John at TripleZee Cycles and ask him what's what. He knows his stuff and if he's not too busy he might be up for a wee chat.

I imagine my 600 would make 70hp if I'm lucky on a factorypro unit...

Remind me what your bike is?

[ducatilover]

I said 15%. That takes 170 down to 144.5. Not a 40-60hp loss.

It's been a while since someone claimed 170hp at the crank isn't it? I thought most claim near 190-200 crank hp now

If you're really interested, call John at TripleZee Cycles and ask him what's what. He knows his stuff and if he's not too busy he might be up for a wee chat.

Thanks for that
Always interested in knowing more stuff

Remind me what your bike is?

ZZR600d, 4-1, ignition advancer and silly intake.

[jrandom]

ZZR600d, 4-1, ignition advancer and silly intake.

Yes, you'd probably read 70hp or so on a Factory Pro with that.

It's been a while since someone claimed 170hp at the crank isn't it?

Yeah, everything's TWO HUNDRED HORSE POWERS now. Yawn. It's not making anyone a better rider.

[ducatilover]

Yes, you'd probably read 70hp or so on a Factory Pro with that.



Yeah, everything's TWO HUNDRED HORSE POWERS now. Yawn. It's not making anyone a better rider.

Interesting, was talking to a well known chap in pommy land a few weeks back and he said I'd be looking at 100rwhp SAE corrected with what I have on it, 105 on a very lucky day.
Looking at the FatoryPro website, their SAE readings seem to be lower.
Quite a confusing thing.

My point is, where is the claimed 200hp going...

FactoryPro say that some chaps ZX11D running 7.5 psi of boost pulled 150hp. I'd throw it off a bank if that happened.

[HenryDorsetCase]

I dinna understand. When Scotty is called on by Captain Kirk to produce more power, does he swap the Enterprise from a FactoryPro dyno to a DynoJet and say "Capn she canna taek na more!" The Klingons are still off the starboard bow!

In other words horsepower is a unit of measurement: surely the margin of error cannot be as great as you're saying?!??!

[merv]

It's running a V&H comp 2-1 and is actually baffled. It's seriously loud though for sure.

So back to the original point, the fricken noise. If it is that loud it can't have a WOF unless some place in NZ issued one when it shouldn't have. What is it with people wanting a noisy bike? Is it more badass the more laws you actually break?

[Crasherfromwayback]

So back to the original point, the fricken noise. If it is that loud it can't have a WOF unless some place in NZ issued one when it shouldn't have. What is it with people wanting a noisy bike? Is it more badass the more laws you actually break?

The bike was sold with the std exhaust, albeit modified to the 120R could actually breathe. He picked up the V& H pipe in Australia and we fitted it then retuned the bike for it. To get a wof next time (from us), it'll have to have the std one back on it, as this one is too loud.

Meantime...it's his problem if he gets busted for excessive noise.

[scissorhands]

Harley rider with ape bars, no number plate (cept for this tiny thing I could barely read) and no rear view mirrors, riding Great North Road this morning. I pulled up next to him outside Red Baron.

His back tyre was too small and had little air, bike wobbled from traction issues off the mark. Late model bike, turned into the lane with all the panel shops 400m west of Red Baron.

[GrayWolf]

This means the HP loss compared to the factory crank hp claims are around 40-60hp...that's ridiculous!
I'd love to read an unbiased article on them to see what's what. The factorypro readings seem lower than any other dyno readings I've seen.
I imagine my 600 would make 70hp if I'm lucky on a factorypro unit...

Ahhhh the age old japanese BHP at the crank ploy,,,,,, took a long time to get the 'real' BHP figures at the rear wheel, which is where it counts!!!! The 'rear wheel' BHP will always be substantially lower that at the crank!!

[GrayWolf]

Harley rider with ape bars, no number plate (cept for this tiny thing I could barely read) and no rear view mirrors, riding Great North Road this morning. I pulled up next to him outside Red Baron.

His back tyre was too small and had little air, bike wobbled from traction issues off the mark. Late model bike, turned into the lane with all the panel shops 400m west of Red Baron.

Which goes to prove.............being BADASS gets you noticed!!

[scumdog]

So would I...last I saw they were knocking 170 at the wheel.

My '01 T-Sport puts out just over 65hp at the rear wheel - and proud of it!

(and I use all of 'em, often)

[ducatilover]

Ahhhh the age old japanese BHP at the crank ploy,,,,,, took a long time to get the 'real' BHP figures at the rear wheel, which is where it counts!!!! The 'rear wheel' BHP will always be substantially lower that at the crank!!

I'm aware of the power losses, have spent countless hours with dynos but have never seen a FactoryPro unit and am interested in why they read so low compared to anything I've seen that's supposedly configured for SAE or STD measurements/corrections.

My '01 T-Sport puts out just over 65hp at the rear wheel - and proud of it!

(and I use all of 'em, often)

Yeah, but you have V8s to make up for it.

[tigertim20]

it will be something to do with the correction factor maybe?
Dynos dont meaure horsepower, they measure engine speed and torque, and then calculate the HP figure, hence why its never accurate.

[ducatilover]

it will be something to do with the correction factor maybe?
Dynos dont meaure horsepower, they measure engine speed and torque, and then calculate the HP figure, hence why its never accurate.

The correction factor difference is a bit silly though, don't you think?

[tigertim20]

The correction factor difference is a bit silly though, don't you think?

Yes.

I honestly find dynos a bit pointless, other than a wank factor 'my bike has xxx horsepowers' - Id rather do a seat-of-the-pants type measurement of the bike.