Burlington Bike Night (Every Tuesday from 5:30-8pm)

[catamount]

Does anyone else think that this guy looks like Mark?

Meanwhile, in Russia - YouTube

[markbvt]

I wish I had a bike...... *sadface*

You have no one but yourself to blame.

--mark

[markbvt]

I hate carbs.

Carbs aren't so bad. They're a hell of a lot easier to tweak than fuel injection to get the bike running great, unless you happen to own a dyno and the appropriate software to adjust EFI maps.

--mark

[Dichotomous]

Carbs aren't so bad. They're a hell of a lot easier to tweak than fuel injection to get the bike running great, unless you happen to own a dyno and the appropriate software to adjust EFI maps.

--mark

wouldnt you also need a dyno to tune carbs in that reguard? other than that you have laptop interface with 1 wire, easy to return to saved tunes at any time, far more flexibility and you dont have to strip any tiny carb screws. For my money thats progress

[korndogg]

I have years of knowledge and experience tuning EFI systems and more. No practical experience with carbs. :p

[Dichotomous]

any work on triumphs korndogg?

[korndogg]

Haven't played with those. Most of my experience has been with cars and far beyond just EFI.. Fuel maps, timing maps, injector and airflow scaling, conversions to speed density, much more..
I'm familiar with the power commander interface as well and while it's easy to tune, it certainly makes sense to do it on the dyno unless you want to just pull someone else's map from the internet. Especially considering how easy dynojet makes it with their automatic loading on the dyno and everything. Too easy.

[catamount]

Dichotomous, with your new Triumph all you need to do is pick up a $20 ODB II cable and you can get to the ECU using some freeware.

TuneECU (free TuneBoy & TuneECU) software demo on Triumph Tiger 1050 SE - YouTube

http://www.tuneecu.com/

And I'm not sure if you saw my other post already, but you should plug your VIN into this website:


http://www.triumph.co.uk/uk/7094.aspx

[Dichotomous]

yeah I know, but if he's good at tuning.....

Dichotomous, with your new Triumph all you
need to do is pick up a $20 ODB II cable and you can get to the ECU using some freeware.

TuneECU (free TuneBoy & TuneECU) software demo on Triumph Tiger 1050 SE - YouTube

http://www.tuneecu.com/

And I'm not sure if you saw my other post already, but you should plug your VIN into this website:


http://www.triumph.co.uk/uk/7094.aspx

[korndogg]

yeah I know, but if he's good at tuning.....

Problem with street tuning is you need to measure and log air/fuel ratios. So you need a wideband o2 sensor if you don't have one and you need to log your AFR as you ride to see where it needs to be adjusted.
I did this with cars but I didn't see any reason to buy a wideband for $200 and start messing with it when I could get it dyno tuned for the same cost. With my cars I was constantly changing things so I needed to be able to re-tune it myself. With my bike, I did what I wanted and had it tuned. done.

I'd be happy to help with whatever you're doing, but it would be tricky without the appropriate sensors and logs..

[markbvt]

wouldnt you also need a dyno to tune carbs in that reguard?

Nope.

Edit: I'll expand on that a bit. Carbs are very simple. Two jets (pilot and main) and a needle. Pilot jet controls idle fueling up to about 1/4 throttle. Main jet controls fueling at roughly 3/4 to WOT. The needle plus the main jet controls fueling from around 1/8 to 7/8 throttle. There's also a pilot screw that helps fine tune idle mixture a bit.

So if your bike has carbs and you've installed an aftermarket exhaust without touching the carbs, you can surmise that it's now running a little lean. So it's an easy matter to pop in the next larger main jet and adjust the pilot screw a turn or two, and the bike will probably be much happier.

Yes, carb tuning can get tricky depending on setup and how anal you are, but the point is that carbs are easy to adjust with basic hand tools.

--mark

[korndogg]

In fairness, you can reflash a power commander blindly very easily as well.
The dyno (with assumed AFR metering) comes into play for accuracy in either case.

[catamount]

After pulling plenty of carbs apart to play with jet sizes and needle shims, mixture screws and messing around with mercury carb sync gauges, I agree that editing a fuel map is MUCH more user friendly.

The nicest thing, imho, is that with EFI you can go online and find a handful of people with the same setup who have had their bike tuned on a dyno, and borrow their map.

Regardless, both are shooting in the dark without dynos or sniffers.

[Dichotomous]

After pulling plenty of carbs apart to play with jet sizes and needle shims, mixture screws and messing around with mercury carb sync gauges, I agree that editing a fuel map is MUCH more user friendly.

The nicest thing, imho, is that with EFI you can go online and find a handful of people with the same setup who have had their bike tuned on a dyno, and borrow their map.

Regardless, both are shooting in the dark without dynos or sniffers.

well, its just as easy in the regard to ask what jets and needle settings someone else is using

[pk4882]

Hey Parker, What have you done? Why no bike? - PK

[markbvt]

well, its just as easy in the regard to ask what jets and needle settings someone else is using

Exactly -- I'll use my Bonnie as an example. I deleted the airbox and mounted British Customs Predator pipes. All I had to do to rejet was go online and see what the correct jet sizes are for that setup. Easy, and runs great.

--mark

[Dichotomous]

Exactly -- I'll use my Bonnie as an example. I deleted the airbox and mounted British Customs Predator pipes. All I had to do to rejet was go online and see what the correct jet sizes are for that setup. Easy, and runs great.

--mark

and if/when you do something to the tiger, you can do the same thing, only instead of stripping screws and putting tiny things in place with sausage fingers, you can type on an extra large keyboard.
ooops, thats MY story

[Baggey22]

BIKE NIGHT!! TONIGHT!! I'll be there!

[Dichotomous]

couldnt find insulated pants this morning, guess I'll have to head home at lunch and ride the bike in for the second half.

[Baggey22]

Yay bike night!

[markbvt]

You guys are aware that today is only Monday, right?

--mark

[korndogg]

Adam's accustomed to prematurity.

I'm missing this week guys. Gotta be in Randolph. Worse yet, I gotta take the truck there. No fun. Eat some Sicilian for me

[Baggey22]

I can say YAY BIKE NIGHT anytime I want. Doesn't have to be Tuesday. So

[Huffer]

Side note on fuel injection. Talked with the guy that custom mapped my Ninja. He told me that the new "auto tune" accessory for the power commander 5 makes a really good map. He's seen several and was really surprised how well they worked. I just wished I new that before I paid for a dyno session and a custom tune. He also mentioned it's very helpful if you do a lot of changes, like an exhaust then an air filter etc etc. You don't have to pony up the dough for everything right away or have multiple dyno tunes every time you add a mod. The auto tune will make all the changes as you go. You just need to ride for a little while and it will make tiny changes on the fly. You just can't do that with a carb...period.

[Dichotomous]

I might actually be able to attend bike night tommorrow!!!
just gotta check/clean/replace my plugs, balance the tb's, calibrate my TPS, check/reload fuel maps tonight and I should be good to go!