Good advise coming from a Honda rider Rocketman!
Don't they miss you when your not on the Viffer discussion board???
Things do go out of tune Raz. The cam chain stretches and does put things outa wack!!! If I could afford a Dyno tune that often I'd do it too. Keep that beast running purrrfect.
Plus scare non Busa riders with the figures...
Well you just answered my question ,"if the cam chain stretches".Well you replace the cam chain,you dont retune around it.Hmmmm it funny how a 10 year old bike doesnt need to worry about cam chains?He but thats progress for you. Phuck its the phantom!
mmmm,
ok, you both have valid points.
GDYUP, my line of thinking is the same ;)
However Rod does have a point as well.
So my last question Rod.
When I took mine for its last service, (Not long ago at Petes Pits Stop) I asked Pete how the bike was when he started and how the first run was before he did the dyno tune.
His answer was that it was all out of whack and had a few flat spots as well. (also noticed the diffrence as soon as I starting riding)
Before this, the bike was last dyno'd when it was modded by Cole with his own custom ECU and such and then dyno tuned after all the mods were done & no mods since.
So I guess the question is, why was everything out of "whack" & do you think this could have been corrected with out the dyno tune?
I know the computer on board will adjust the air/fuel mix as best it can, but I don't think the on board computer was ever made to keep the engine in "tune"? Also other reasons I have read & been told to do dyno tunes is that the dyno can correctly check the on board computer, check that the engine is running as efficent as possible as well as having peak performance from the engine.
I like this, I am learning stuff
PAN sorry about all that
To answer you question, the BTL is mainly modded for a VERY quick take off, like drag racing take offs. The BTL's main function from what I understand (I am sure others could clear it up more if you wanted) stops or helps to stop the rear locking up if you gear down too early. I left this because I have also shorten the chain and will be using it for track days and getting it in to the corners. I am shooting for getting my knee down with this thing one day, and I reckon having the BTL might save me one day if I am going at it too hard or get a little careless. Apart from helping with the gearing down I am not sure what other functions it has.
Boy's wanna fill in all the blanks ?
*Edit: I was just thinking a little more about this whole dyno tune thing, I guess we also need to define "Tuning" & "Servicing" as I guess what myself & Rocket are really talking about is if a dyno tune is needed or is worth it the way myself & GDYUP think of using them.
Edited by: RaZ80 at: 27/7/05 2:34 am
Ok Raz,when you were told things were out of whack,i think this means things like your throttle butterflys and tpi.(throttle position sensor).As these are all a mechanical thing and can wear slightly,i think this is your out of whack thing.
When i had my busa,i decided to have a go at syncronising my throttle butterflys and setting the tpi up myself.
What a huge difference it made.The bike was much smoother down low and the fuel economy went from about 17km/l up to about 22km/l.So this was what i called tuning,not remapping the computer.Hey if you want to get it remapped every 10,000kms,go for it,its your money,but i personally think its a waist of time unless as i said,you have done some sort of mod to the system.The guy who does the dynoing is always gunna say you need it done because its money for jam to him.
As himself says,"never wake up a mug"!!! Phuck its the phantom!Edited by: rocket rod 7777 at: 27/7/05 10:10 am
Thanks Raz.
I'm having my first run at the drags tonight. Guess I'll know if I want the BTL done or not after that... (maybe?)
"sometimes, crime does pay"
Yeah I know that in the service things like this would have been adjusted.
But still, over all your saying that putting it on the dyno is useless? Correct?
Because I am still yet to know of a way to check that the engine & on-board computer is running 100%. Surely adjusting the butterflys & the tpi will not show this and I am more then sure that the good old days of listening to an engine to tell if its running well or not are gone due to the computers.
Well like i said a computer is not a mechanical thing,and as such should not wear out.If the engine was off song,wouldnt you know by fuel ecomany and power?????Im mean really,after a dyno tune the guy says,oh its great now,i just got another 2 hp from it.Do you really think that you are going to notice this from the seat of your pants????
Like i said you would notice if your butterflys were out and then they were put in sync again.Also i think a lot of guys get a dyno just for the bragging rights so that they can show their mates their dyno graphs.
insert your 2c worth here! Phuck its the phantom!
ah come on Rod ;) thought we chatted enough for ya to work out that I know I am not going to feel an extra 2hp. I guess I have been more under the impression that having a "Dyno Tune" was a good thing and a good way of making sure everything is 100%.
However, my down fall has been I have never watched a full "Dyno Tune" from start to finish so I don't know what is done point for point. But if a dynos only use is to program the mapping of the ECU, then yeah. it has been a waste of time & money!
All of that would have been taken care of Raz. It only takes a mechanic with the right tools a few minutes to re-balance the butterflys and a few minutes more to adjust the TPS. But you do need the right tools!
The dyno would have taken care of the air/fuel mixture and the re-mapping. The guys that have dynoed your bike know what they are doing. THEY OWN BUSAS...
Does Rocketman really think I go there to hear the Busa at full roar in an enclosed room? (It is a sweet sound all the same. I love the sound of an Ackro at 10 000 RPM in the morning... )
Riders out there think their bike goes well Raz. We fugen know ours does! THE END
Rocketman is quite handy with a spanner, I know! But there is a difference between lawn mowers and complicated modern road bikes...
Now to check the Viffer BORED! (I mean board) Edited by: GDYUP at: 27/7/05 1:15 pm
Ok, I decided to go and ring a few people about this and find out as much as I could.
In short the reason why Dyno tuning is a good idea is that with a dyno you can tune the engine while putting it under load. This is something you can not do if you do it manually! No two ways about it, you can adjust things as much as you want at idle and still go out riding and find a problem @ 100kph. Also add on my own reasons, such as checking the ECU is functioning as it should and being able to tune the engine through the entire rev range.
So its not a waste of money at all, its something I do and would recommend other do as well for the same reasons. Maybe not as often as I do (Altho really... 10 to 15,000km for a really good tune up on your baby aint that bad... depending how much riding you do I guess ) and Dyno tunes aint that costly at all these days. I think mine was all off 110 or so ??
So all in all, I see your points rocket, but for the money I paid for this bike, the money I have spent modding it and the power I want out of it and the performance, I am more then will to spend that bit extra to make sure my engine is running 100% and not just 100% at idle
Looks like we're posting at the same time Raz.
Your right on the money!
Now, all together now f*** OFF ROCKETMAN.
cHEERS,
hahaha, yeah we are
But yeah... not a f*** off to Rod I learnt stuff and maybe he did as well as others which is what makes this club rock! We can all look at this now and see reason why to dyno your bike but as well as keeping Rods points because they are valid as well, you don't wanna be masking up a problem ;)
So all good in the end I think.
Phil, fun is a bit of fun,but thats twice you have told me to f*** off and i take offence to that.I accept your appology or you can f*** off!!!!
As i said Raz a dyno is good for fault finding,but in the end all it does is test settings you have made to your computer or carby mixtures.Some people think that a dyno fixes your bike,believe me it doesnt.
Ps Phil,buy the way,i may fix mowers as you put it,but i am a qualified mechanic,what credentials do you have to back up your knowlege?????? Phuck its the phantom!
Hey Astro, are you out there?
"sometimes, crime does pay"
yeah hence my post above your Rod ;) no need for a "go get f****d" ;) still..... read below, i am not saying it fix's anything but then again I wouldn't be telling people not to do it. the reason below are good enough reasons to use the dyno in this with a Hayabusa... well IMO
In short the reason why Dyno tuning is a good idea is that with a dyno you can tune the engine while putting it under load. This is something you can not do if you do it manually! No two ways about it, you can adjust things as much as you want at idle and still go out riding and find a problem @ 100kph. Also add on my own reasons, such as checking the ECU is functioning as it should and being able to tune the engine through the entire rev range.
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