Welcome to The Australian Hayabusa Club Forum - ARCHIVE ONLY VERSION - NEW REGISTRATIONS & POSTS DISABLED

Sounds about right for a 99, what mods do you have for that 20hp?

(22-10-2012, 08:23am)xxx Wrote: [ -> ]..just got in from a day trip to warburton and was busy buying a kwaka er-6n yesterday arvo so only just back online, but the news from the dyno shoot out wasn't good.. they 'measured' the busa at under 150!.. what a crock!!.. 175 stock + ~20 extra from mods = ~200 bhp.. ..whole thing stinks like something's rotten in denmark!.. rang the guy i bought it off straight after and he said, 'tell 'em to shove their dyno up their ass!'

Nothing wrong with that.
Depends how its was measured and with what machine.

Dyno's are good fun for shoot-outs and for checking A/F ratio's etc.

Mine have been on several machines and had VERY different numbers.

I won a dyno shoot out making a lot less than Suzuki claimed and a
lot less than it had a month before.

Folk think Dyno numbers are set in stone and compare them between
different machines on different days with different operators with
different weather / altitude settings etc etc.

I have mates who'd Dyno your bike at 200 if it keeps you happy.
They could probably find you an extra 10 ponys by tweeking a few
settings if you want to be really impressed. One of mine was on a
dyno and I mentioned it was soon to be up for sale. The Dyno guy
said "I'll make it look REAL healthy if you like..LOL"

There folk on here who know a LOT more about Dyno's than I but
I have learnt not to take their readings as gospel.

Funny, folk complain a lot less then they read the numbers high !

---

... and if they're measuring at the rear wheel a 99 never made "175"
and certainly wouldnt after be after 13 years. I saw a VERY quick
stock Gen1 bike dyno'd at 159 a while back. Owner didnt need numbers
to boost his ego.

The only indication is relative to how the other bikes performed on the same dyno. So forget the numbers and tell us how the other bikes fared in comparison.
The closest to 200 was 198 (from memory) on the Peter's (fasterfaster) Gen2 busa after he fully tuned it to exhaust etc. And he is one of the best tuners and knows waht he is doing.

(22-10-2012, 09:41am)Shifu Wrote: [ -> ]The only indication is relative to how the other bikes performed on the same dyno. So forget the numbers and tell us how the other bikes fared in comparison.

Spot on Shifu.




Did they invite any S1000RR's / ZX14's ?

(22-10-2012, 09:43am)Tony Nitrous Wrote: [ -> ]

(22-10-2012, 09:41am)Shifu Wrote: [ -> ]The only indication is relative to how the other bikes performed on the same dyno. So forget the numbers and tell us how the other bikes fared in comparison.

Spot on Shifu.




Did they invite any S1000RR's / ZX14's ?

+1, it is only for comparison to other machines on the day in this instance, the actual number carry's little weight in isolation.

ok just to fill you in so hopefully you guys can shed a bit more light on the busa; apparently 175 bhp is the rear wheel value and 99 busa's are actually 150-155 at the crank. still, i thought the mods mine has would add at least 10-15 bhp.

and my busa isn't 13 years old inside - she's only done 52,000 km's and runs like a dream.

mods include velocity stacks, micron race headers, kenny roberts tuned titanium pipe, smart tre, k & n air filter, and power commander which i don't have maps for, which could be the reason its not putting out as much as it should as its an older model dynojet power commander.

so we did 2 runs on saturday - 1 with power commander connected so it runs lean and 1 with it disconnected so it runs rich, and there was only marginal difference in numbers.

the guy who dyno'd it rang me today to confirm results and dyno set-up:

its a dynojet running as per dynojet recommendations on sae spec setting, not standard, with smoothing at 3.

its had rear hub calibrated and sensors replaced.

best run prior to busa was 05 fireblade (having sat around for a year with stale fuel) recording 148 with ambient temp at 23 degrees & humidity 18%.

busa did 147 with temp at 26.7 degrees & humidity 16%.

am hoping some proper mapping will sort out the issue but being an older model they're hard to get so maybe i should remove it completely and get it tuned again.

In summary the situation is very similar to this: imagine you had an appendix operation and just aftet you woke up, the surgeon comes in and says - I am very sorry Mr. XXX but I have a bad and the good news for you. As I was very excited to have operated on a legend like yourself, my hands were trembling a bit and unfortunately as a result the scalpel slipped a bit and I accidentaly cut off two inches of your penis. The good news is that after some minor surgical adjustment you will still have the bigest penis in the whole neighbourhood

So do not sweat about the numbers. It is still the fastest bike there is.

funny, but to put it another way, its not about having the highest sperm count or biggest donga that concerns me - its about making use of all the extra energy available from the mods, which it doesn't seem to be doing.

(22-10-2012, 08:02pm)xxx Wrote: [ -> ]funny, but to put it another way, its not about having the highest sperm count or biggest donga that concerns me - its about making use of all the extra energy available from the mods, which it doesn't seem to be doing.

Look, many manufacturers are claiming power increases on anything they sell. Even fender eliminators That is just a marketing bullshit.
However from the description, you have few bits that should really help in that department and I think all you need is a proper tuning to use them to their potential. The hard part is to find someone who knows what he is doing not some shit artist. There are few guys in the club that are very good. Shoot the PM to Peter (fasterfaster) and ask his advice. He is in Queensland I think but will probably know a reliable tuners somwhere close to yourself.

Cheers.

(22-10-2012, 07:21pm)xxx Wrote: [ -> ]mods include velocity stacks, micron race headers, kenny roberts tuned titanium pipe, smart tre, k & n air filter, and power commander which i don't have maps for

There is your problem, you havent had it tuned for the mods you have. Not tuning it for the pipes you have would actually reduce power on the standard map.
But in all honesty, stacks, tre, and a filter will gain you bugger all, less than 5hp if anything at all.
A good tune should free up 15hp or more, but you will only be looking at 170hp tops.
If you want to chase more, look at an airbox mod, 2 inlet cams. These will gain you a bit more bang for your $.

+1 Cas
every mod changes the motors needs , if you have not adjusted the fuel and ign to make the best use of the changes
chances are you going backwards in hp
good std gen 1 DEPENDING ON THE DYNO should be ~155-160 rwhp , to get 200 is a large step up
cams, compression, head work and good tuneup
powercommander is a tuning tool not a hp producing item