If changing pipes (V & H straightshots or short shots) on an '08 Sporty 883 do you have to fit a fuel pac and an AC at the same time?  What if you don't?

thanks for that.  I have also heard something about 'popping' from the exhaust when changng pipes, is that right or have I got it wrong?  And what is 'popping' anyhow?

i have a 07 883 sportser . i put a set se 2mufflers on it first . worked okay no poping , put on a se hi flow filter 1 week later made a big differance . put a dobek pro tuner on it , 3mths later , i spoke to a couple of the better mechanics up here in townsville and they said the same thing . the stock ecu will only work up to a certain point , if you are doing a lot of highway work it would be adviseable to use some kind of tuner with them.
i have a vand hines fuel pack which i had on my bike for a few days sitting around here doing nothing. i now have a set of v&h shortshots with quiet baffles for some back pressure. they work well . look good and sound great. i hope this helps u out .
cheers bruce

The Pop Is your Bike Leaning out, I wouldn't,

Jill was lucky, The weather condtions also have a huge efect on running Lean or Rich

Ok i will throw me 2 bob in lol! 08 883 with SE pipes, (with all these mods i pulled the plugs to see what was happening, it is still the best and easiest way to check how the engine is running, ie lean or rich.) was definatly running on the lean side so fitted a set of night rider 02ied,s, ran a hell of a lot better and more mid range and cooler. fitted a SE ac and it was way too lean so took it back off and added a dobek electronic jet kit and refitted ac, heaps better and runnning way better. next got ride of the SE pipes and made up my own drag pipes. what a difference now it realy is breathing better and the plugs are almost perfect, not just my judgement but a realy good HD maniacs opinion as well. the only down side is fuel economy has gone from 20k/l to 17k/l but i do have a very heavy hand as i like to RIDE! the bike has done 16,000 k,s so far and it is the fastest 883 at least around here and gives the boys on their big toys a bit of a hurry up lol! hope this helps a bit, like i said pull the plugs and have a look the dont lie, never! stay safe and have fun boys and girls, cya

no i mean i added a dobek electronic jet kit, thats what dobek call it so i guess they should know lol. gee realy efi dont have jets i didnt know that lmfao! but the dobek acts like a jet kit and is tuned the same, ie with a screwdriver! the first pot is the air fuel mixture, second pot is the acceleration fuel adjustment up to 70% of throttle, the third pot is main fuel jet adjustment and adds most of its fuel above 70% throttle, the 4th pot sets the rpm that the main jet kicks in. i like it because i dont need a computer or maps! i adjust it with a screwdriver ( do people on here know what they are?) just like a carby, it is infinatly variable to suit your bike and your riding style and i adjust it by the seat of my pants and how the plugs look, simple old school style of tuning so it suits me, stay safe people and have fun!

Hi retsurht, ok so i cant spell either it is dobeck lol i brought my TFI or electronic jet kit direct from them in mid 2008 so i think it is newer than yours, they seem to make a lot of them that are sold under other brand names and i have seen the electronic ones like yours but i prefer the screw adjustment, just my old school mind i guess lol. stay upright!

Hi All,

damn, you don't look ata thread for a day and everyone gets their 2 bob in .

What PUB has is the Gen2 unit. And yes, it is referred to as a electronic Jet kit.

The Gen IIIs are more electronic cause they have push buttons, not trim pots.

There are also extra modes, 6 in total in the FuelShot.

They are :
1- Cruise Fuel ( relate this to a carby jets)
2- Acceleration Fuel ( again relate this to a carby jets)
3- WOT (Main jet equivalent in a carby)
4- Decel Fuel ( allows addition of Fuel on Decel to eliminate "pop")
5- Cruise to Acceleration transition ( based on load setpoint)
6- Acceleration to WOT (based on load setpoint)

The units do not marry to the bike and do not require the SERT or SEST or the Thundermax.

 

Now to the original question.....

"If changing pipes (V & H straightshots or short shots) on an '08 Sporty 883 do you have to fit a fuel pac and an AC at the same time?  What if you don't?"

no you don't have to fit an aircleaner, but adjusting fuel is recommended. If you don't, you will get decel pop, which is an indication of running lean. The O2 sensors do not have sufficient capacity to deal with the mods and they only run in closed loop mode when the bike is cruising. In open loop, there is no compensation.....

Remember a couple of simple things....

The new bikes run lean from factory.

Getting the bike to breathe better, even if only slightly ( eg exhaust only) will expel burnt gases better allowing more air to flow in. Without changing fuel, this will definitely run leaner.

The more free flowing pipes you install, the more likely the lean condition will be effected. If the pipes you put on are no different to stock, then you can get away with it ( although I would put a fuel tuner on a stock bike also- as the first step- you will understand why once you ride it.)

Will it damage the bike?

Time will tell. If you do the damage do to lean condition, then expect warranty to be void unless it is in stock trim. The reality though is that you probably won't know about any damage until well after the warranty period.

 

Hope that helps

 

Cheers

 

Mick

 

 

I have a Dobeck FI-1250ST GenII TFI Plug & Play (new in box with instructions for easy installation and tuning) for sale. This unit fits all 07up 96 EFI V-twins exept V-Rod & Sportster. I am asking for A$299.- plus postage from Sydney, pick up from Northern Beaches would be ok! If anyone is interested please sent me a PM.
Cheers, Hazza.