yoshi tune ?

[black13]

g,day , I recall recently someone posted that they had a yoshi tune done to their busa, cant find the post on the new forum.interested to know whats involved as i,m getting a yohsi full system fitted when it l
lands in oz, i dont want the added expense of a power commander.

cheers&beers
paul

[BUSGO]

G'day Paul,
I am not sure if you think that a Yoshi tune has something to do with the Yoshi pipes.
It does in a way, but it is more a fuel map setting device that simply modifies the ECU to supply more or less fuel to the engine.
You can have a yoshi box adjustment made to any busa whether it has aftermarket pipes of any description, or just stock cans.
I had one done to adjust the fuel mixture and it made a world of difference to the torque down low and in the mid range where I use it most.
You have to have the idle set properly to about 1100 rpm and the Timing Position Sensor set to the correct position before playing with the fuel map.

[hgazbus]

I recently had a yoshi re mapping. Well worth the $100.00. smoothed the bike out, especially in the lower rev range. So before you spend extra $'s on a pc, the remapping is worth a try. I get slighty better feul comsumption.

[black13]

is this tune done with or without dyno?
paul

[hgazbus]

Paul.
They didn't dyno tune my bike just a re map. But it worked wonders.
really smoothed things out.
I have a set of yoshi cans (slipons). R22's. Rode it for about 10000ks before I had the remap. So I really noticed the difference.

[ROD]

is this tune done with or without dyno?
paul

you will need to take to a Suzuki dealer so they can plug in to your yoshi box on your bike i personly dont no of any other mechanics having the device used to adjust the computer on your bike

[Busabug]

Might of been me, I have full yoshi pipes and a PC3 had it dyno tuned about 8 mths ago as was running too rich. You can get away with stock black box for slip ons but not for full pipes a PC3 is needed for dyno tune.

Was quite expensive after a few runs (due to extra mods airbox,valve,gear sensor) and they had to apply a full akrapovic map for the best result. PM me for more info I keep meaning to post the reports but never got around to scanning them.

Bike has run awsome ever since, super smooth, very responsive and of course sounds awsome.

From memory I think it's somewhere around 145 rwhp and a very flat and wide torque curve over 100nm.


Cheers,
Dave

[Busabug]

Ah, sorry 174 RWHP not 145.. Must of been thinking of my old Gixer. :rolleyes:


Cheers,
Dave

[Gnarbunkle99]

Bit of mis info going on here, the yosh box allows some scope for adjustmet to the stock ECM and certainly enough to correct for a full 4:1 exhaust and airbox mod. Several of us have had it done and it works fine but find a tuner that knows what he is doing, not a boy scout on jobweek! The tuner uses the dyno to load the motor at various points and samples the air/fuel ratio. On that information, the yosh box can then be used to adjust fuel injection.