Had the bikes up on the dyno

[WINJA]

Seems strange to me that it's running rich when it's got a higher flow filter and exhaust...I'd have thought so much more air going through with the same amount of fuel would make it run lean. Unless the ECU is over-compensating already...or unless my theory is wack...

THOSE BMC FILTERS ARE NOT THAT GOOD , IVE READ SOME REPORTS ON THEM , NOT ONLY DO THEY NOT FLOW AS MUCH AIR AS A STOCK FILTER THEY DONT CATCH AS MUCH DIRT , IT WAS ALL DOWN TO THE SURFACE AREA AND THE STOCK SUZUKI PAPER FILET HAS A SHIT LOAD OF PLEATS.
I GOT A BMC RACE FILTER HANGING ON MY WALL IVE GONE BACK TO THE OE

[WINJA]

A change in sensed airflow will constanyly alter timing/injector rate. Adding extra air wont make it run lean (unless the injectors are maxed out). I think youll find what usually happens is that the stock airflow sensor measures too much air flow (even more than the added changes with the new mods), thus making the injectors dump too much extra fuel than is really needed... There is also the manufacturers oem margin of "tuning safety" too...
Based mostly on car experience tho~~~

HOW DO THOSE BIKES MEASURE AIRFLOW ? THEY HAVE NO AIRFLOW METER

[Lou Girardin]

HOW DO THOSE BIKES MEASURE AIRFLOW ? THEY HAVE NO AIRFLOW METER

Snap!

[Cajun]

Something i remembered is local suzuki dealer as the 'yoshi box' which can be used to remap the stock ecu, so i might go pay them a visit Since they haven't really used it. and see if we can figure something out, far better than spending $$$ on power commander and a bunch of dyno runs at this point in time

[imdying]

Was talking about this to Sportzone yesterday. Some box they plug into the stock ecu which tidies up the noise/emission dips. Cost a pretty penny for them to get was the impression I got, but they reckon it was the dogs bollocks. Apparently when I fit noisy cans at the 1000k service, they'll plug it in and 'remap' (I guess) to suit. Keen to know more about this though, anyone heard of it before? I got the impression that it was something that they brought from Suzuki (they're a Suzuki dealer).

[Cajun]

yes well the box my suzuki dealer as is a yoshi one so maybe got it thru suzuki

this is a site for teka tune.
http://www.factorypro.com/TEKA_SFI/T..._Adjuster.html

I think it does something simlar, it just doesn't give you as much chance to map as the teka does, but for just basic retune i think it should be fine.

Another bit of infor
- PowerCommander3. Unit acts as an intermediate between the ECU and the injectors. This unit stays on the bike and allows a lot of different configurations (maps), which you download via a computer with a USB connection. Sells for about $329.

- Teka SFI. Works as a ECU Reprogrammer (unit does not stay on bike) It's a hand tool that seems to have enough versatility but is even more expensive than a PC3 ($600).

- Yosh Box. Similar to the Teka but with less flexibility? ($429) As others mentionned, a dealer could offer the service so no need to actually buy the unit.
(prices in US $)

[DirtMad]

HOW DO THOSE BIKES MEASURE AIRFLOW ? THEY HAVE NO AIRFLOW METER

idunno haha
which ones? surely if its not carby it must have a map sensor or something in there.. ?

[Toast]

- PowerCommander3. Unit acts as an intermediate between the ECU and the injectors. This unit stays on the bike and allows a lot of different configurations (maps), which you download via a computer with a USB connection. Sells for about $329.

Where can you get a PC3 for $329 Cajun? Or is that $US?

[Cajun]

Yes thats US

But saying that i can land one here for my bike for around the $400 mark
or i know of a 2nd hand one for my bike for around the $250 mark from a contact in the states

[WINJA]

idunno haha
which ones? surely if its not carby it must have a map sensor or something in there.. ?

BIKES LIKE THE GPZ1100B HAVE AN AIRFLOW METER , BUT THESE NEWER SUZUKIS ARE MAPPED , GENERALLY WHEN YOU PUT A GOOD AFTER MARKET EXHAUST OR HALF SYSTEM ON THEY RUN RICH DOWN LOW AND LEAN UP TOP , THERES EXCEPTIONS THOUGH,
THEY CAN MEASURE AIR TEMP , AIR BOX PREASURE AND OTHER STUFF BUT THEY CANT REALLY ADJUST THEMSELF FOR A NEW EXHUST EVEN IF THE DEALER SAYS THEY CAN , BUT THEY DO HAVE THE ABILITY TO RUN A LITTLE RICH OR LEAN AND NOT BE TO BAD.

[DirtMad]

ahh cool , thanks for the clear up...

[Krusti]

Hehe, z1000 at GP's today for mapping PC etc, wont be finished till tomorrow, they tell me a strap broke under power snapped pipe bracket I think and took big chunk outa new rear tyre!

New tyre on way . At least bikes ok and no one was hurt!

[Cajun]

Hehe, z1000 at GP's today for mapping PC etc, wont be finished till tomorrow, they tell me a strap broke under power snapped pipe bracket I think and took big chunk outa new rear tyre!

New tyre on way . At least bikes ok and no one was hurt!

lucky that didn't happen on the road mate

i know dynos put a bit of extra pressure on bikes than road riding, but if it happen there it would have happened on road sooner or later

[Finn]

i know dynos put a bit of extra pressure on bikes than road riding, but if it happen there it would have happened on road sooner or later

This is true, however in may case I haven't found a dyno in NZ that can handle the raw power my bike produces. It blew the one at AMPS into next week.

[Krusti]

lucky that didn't happen on the road mate

i know dynos put a bit of extra pressure on bikes than road riding, but if it happen there it would have happened on road sooner or later

Except I don't ride down the road with the bike held with straps!