Engine Tech Talk

  • Paul.C
    Paul.C
    16 years ago

    Chris,

    The first thing you ca do for not much money is  SET OF SLIP ON MUFFLERS.

     

    If you want more noise and preformance then you go for a Stage 1;

    Full set of pipes

    Air cleaner and Fuel management system.

     

    It's a never ending spend

     

  • shadowhand
    shadowhand
    16 years ago
    General maintenance:

    Buy some cheap toothbrushes and a can of WD-40 for any rust what pops up on your bike. Spray WD-40 on the toothbrush and scrub the rust I've found this is a good way to keep rust at bay.

    When waxing the bike it's best to do it in the shade as waxing the paint hot causes the paint to fade rapidly.

    Wash the bike with any good car wash liquid and water. I use a 2 sponges one for the wheels and one for the rest.

    Check tire pressure regular and pump them up.It's important for handling, tire wear etc.

    Check all the fastners and bolts every now and again to see if there tight. You'll be amazed at how these buggers wriggle loose.

    De-grease under the bike 3 times a year the cheap red top degreaser works fine.

    Check all your lights every now and again see if you need any new bulbs.

    overtime you'll probably learn to hear and tell if anythings wrong with your bike, like a 6th sense.

    Engine:

    The 96 Engine is just mainly a bigger engine than the 88. More power/torque.
    Fuel injection is standard now so no choke which is more user friendly.
    Stick to Harley spark plugs with fuel injection. Its important for the management system.


    Mods:

    I would go for slip-on mufflers (Screamin' Eagle/Python 3/ Khrome Werks or S&S). I wouldn't get 'em too loud as its a drag on long distance.
    A new air cleaner Kuryakyn Hi-5, S&S teardrop.
    A re-mapped fuel injection module by dealer or a fuel injection system Ness Tech. or Power Commander 3.
    These mods will add more air to the engine and a slightly richer fuel mixture. resulting in more torque/ horse power and slightly longer engine life if re-mapped properly with no popping on de-acceleration or backfire. The bike will sound better too.
    There's enough power in the above changes for the road.

    My mods:


    I got saddlebags from the States for my Springer as I put shopping in it and use the space for stuff when touring. There convenient and practical. Throw over bags are fine or bolt ons.
    I got Santee Shotgun pipes (they are damn loud) as i got sick of my mates taking the piss so now I deafen them.
    I got a Arlen Ness Big Sucker stage 2. I love this air cleaner but I had to make a modified brake pedal to brake comfortably.
    i re-jetted my carb and it's been sweet for 7 years.
    i changed the grips as the stock ones are not wide enough for me. I got H-D Aileron grips there good for control.
    I changed the seat to a Le-pera there pricey but with it. i got it from the US.
    Got forward foot control extension Ness tech. and got braided cables for brake lines and clutch.

    Overall being comfortable on your bikes the main thing.

    p.s- great photo.
  • Bobtail
    Bobtail
    16 years ago

    Hi Chris

    You need to carefully think about the direction you want to go in re engine and performance enhancement. I took a lot of advice from my dealer and his mechanic about my upgrades. The possibilities are endless and so is the money spent..........

    The first thing I did was to get rid of polution control stuff, ie. Air cleaner (bigger) Pipes (less restrictive and more noise) installed PC111 to control fuel (richen fuel mixture)

    I am running a full synthetic oil as well.

    In doing the above with the dealer I am able to return everything back to stock if needed.

    With the above I had it dynotuned. All that made the motor run cooler and I gained about 9 HP, now getting about 83 HP.

    My next step is to put a different cam in to give me increased low down torque. Will than look at about 90 HP.

    All that I have done is also within warranty constraints, the dealer gave me that understanding. If he instals it he and HD warrants it.

    Hope that's some help.

    Bt

  • Paul.C
    Paul.C
    16 years ago

    Wozza,

     

    That's perfect,

     

    Thanks for posting

  • GREG
    GREG
    16 years ago
    I agree with what the others have said. I put on SE slip-ons, high flow air cleaner kit am about to install a Thunder Max Auto ECU. I also eliminated the exhaust valve as mentioned in other threads.

    After I have washed my bike I dry it with compressed air. It blows all of the water away and drys the bike ready for polish.

    Greg
  • Bobtail
    Bobtail
    16 years ago

    Wow Chris there are a lot of questions and all will have multiple answeres.

    The best I can offer is for you to ride your bike as is, ride with other Harley riders like ones from this forum and pick their brains, most of us have some you will soon see how much you need to change to keep up and what works and what does'nt. This forum is great but there is no substitute to riding.

    The net (Google) is a good source of info as well as are biker mags etc.

     With a brand new bike, changes should, I MHO be initially moderate unless you have no probs with money or warranty concerns.

    That little steam cleaner is a ripper................

    Bt

  • GREG
    GREG
    16 years ago
    In the general section of the forum the is a thread of 07 exhaust valve elimination. A heap of discussion there. Very simple to do as well.

    Slip on mufflers change the look and flow the exhaust gases better. Again an easy install. You do not remove the black tube (balance pipe) just un bolt the old mufflers and put on the new.

    High flow filter basically removes the plastic back plate to the stock air cleaner cover and you get a different air cleaner element.

    Do you need to get RE-Chipped? It depends. I have run with pipes and high flow air cleaner on the stock ECU (computer that controls fuel input etc) with no real problem that I could see. There is talk of those mods making the bike run too lean which is a concern. The dealer said its all OK. I am putting a Thunder max auto (replaces the stock ECU) on as I like to try things. Warranty will be voided for the fuel system, but I can live with that. Some are running the Vance and Hines fuel pack which allows you to enrich the fuel mixture only. T/Max allows me more flexibility in tuning and only cost a little over twice as much.

    Hope this helps, I'm no mechanical genius either, but I read a heap and have a go. Thats why I love Harleys, ya get to fiddle around and do different things.

    Greg
  • shadowhand
    shadowhand
    16 years ago
    Best thing to do is get some books on 4-stroke motorcycles and how they work. This way you will understand the principles behind each piece of your motorcycle.

    There's 2 books I can think of that are good: Mark Zimmerman M.M & Donny Petersen's Twin Cam book.
    Other books needed are mechanics books of 4-stroke motorcycles.(They can be picked up at 2nd book stores for a low price/or free at the library).
    This way you will realise how simple motorbikes/vehicles are.
  • Robbo
    Robbo
    16 years ago

    Wozza, thats a f*&king great idea using the steam

  • Robbo
    Robbo
    16 years ago

    Hey Chris,

                        you need to look around and see what you like, thats the best thing about our bikes. We can make them as individual as we want or leave them as they are, its all up to you man. Me I've got to dress her up and take her out on the town LOL

  • BlackDragon
    BlackDragon
    16 years ago
    This is my 6th Harley now so have looked into different things over the years.

    My last ride a 03 injected Deuce was the first injected harley.
    I changed to SEII slip-ons which were marked with cross flags for race only. They were fairly loud pipes.
    I also had the dealer install a stage 1 SE aircleaner and I put on the teardrop cover which I have on my current ride.
    By changing the air intake ie improving flow the bike would run way to lean and damage something.
    My dealer updated the ECU (electronic Control Unit) with a new map to compensate. The HD maps will always be on the conservative type.
    Biike run much crisper and accelirated a lot cleaner but popping was annoying on over run.

    My current bike I decided I would do myself.
    I didn't like the sound of the SE pipes for the 2007 on model. (sorry) I replaced the whole system with a V&H as per pics. Not excessivley loud but certainly flows better. Kept all origonal pipes just incase one day something happens.
    Also on all international bikes have an exhaust flap in the back pipes header just before where the muffler mounts. This is purley a noise natzi thing. The flap shuts while at slow speeds forcing the exhaust via the crossover (aka black tube) so exhaust is rerouted to fron pipe muffler. When at Hwy speeds it opens up allowing slightly deeper sound and better performance.
    You still have this big flap stuck in your pipe though, No good for increasing performance. Also the thing (ungly chunck of metal) that controls it sits behind pipe and just behind the 6speed cover. Fairly easy to remove (just a bit tricky getting the cable out of the exhaust- 4 me anyway)lol
    If you only want to change pipes removing this would help with flow. Using standard ECU will give you error messages so you would need to buy one of those Active exhaust eliminator plugs.

    The next to look at is the air cleaner. Replace the whole air cleaner assembly behind the chrome cover. SE stage1 etc as advised before.(as U want to keep the 105 theme U can still use the standard cover which most people do any way) Buy replacing the big plastic bit you will allow more air in. Problem is more fuel doen't follow on injected bikes as the injectors need to be told how much fuel to deliver. I don't know wheather your dealer can do a download to fix this like on pre 06 bikes. My dealer sujested a SERT (Screamin Eagle Race Tuner) which they can then re map the ecu to deliver more fuel etc. I am led to believe that You need to have a good Dyno Tuner to get the most out of this. You would probally also need the Active Air Eliminator plug as well. The air sensor is pluged into the bottom front of your stock aircleaner back plate. If you look at that little Squarish bit of black plastic that sticks and has a flap in there. When the flap opens it activates the sensor.

    I decided on a TMax w/ Auto tune (ThunderMax with an Auto Tune module) The Thunder max replaces not just the ECU but also the O2 sensors in your pipes.
    The HD sensors are 2 wire where as the TMax sensors are 5wire wide band.
    What this means is that by replacing the oem sensors and ECU you don't need to use any of those eliminator plugs just tape them up. Also with the ECU it is fully programmable and also with Auto tune and those 5wire sensors the continually tunes it self so any changes to bike or altitude etc will be taken into account by the system. U don't need to get a dyno and tune each time something changes. They are fairly simple to install and if you can drive programs in windows and have a laptop you can program a map close to yours in and start from there.
    link below on some info
    http://www.heavydutymotorcycles.com.au/accessories.html

    Hope this helps explain a bit about pipes , ECU and Air

    Also I am lead to believe that the sync3 oil from harley can help reduce the engine temp as well, Another plus is you can use Sync3 in Trans, Motor and Primary so instead of having 3 different oils for top up ypu just need the one bottle. More expensive but you get what you pay for.

    let me know if you need more info

    regards Greg


  • GREG
    GREG
    16 years ago
    gmeikle

    Wouldnt be able to chuck in a link to the pull baffels out of SE pipes thread would ya?

    Greg
  • shadowhand
    shadowhand
    16 years ago
    These engines are over engineered. The Harley engines and Porsche engines are built to last & there both air cooled.
    My bikie mates flog there rides & they still last as long.
    Lugging it is more damaging.


  • GREG
    GREG
    16 years ago
    Cheers for the link. Way too much stuffing around for not much gain I think. I'll just have to save some more coin.

    Greg
  • czarek
    czarek
    16 years ago

    Hay Wayne!

    When you talk about cams what are you actually talking about? Camshafts? How do you change them? How do they breathe?

    Thanks for all the info, Like Chris I am not mechanically gifted at all (actually I think I am mechanically challenged) but I learned a lot from this thread.

    Thanks again

    Czarek

  • czarek
    czarek
    16 years ago

    Hi Wayne

    Sent you my e-mail address today.

    Thanks

  • BlackDragon
    BlackDragon
    16 years ago

    Just on the tMax / PCIII/Sert issue.

    I was in 2 minds between the SERT and TMax but after doing a lot of reading/Web Surfing I decided on the TMax.

    If you buy the latest edition of Heavy Duty the Magazine on P28 they have a bit of info on the TMax and on Page106 they have an article on there hot up bike that had the PCIII which had been dialled in and than installed a TMax. There was no real difference on the Dyno but they said the bike felt snappier across the range.

    Not tring to sell U on what I have. But just think in long term would be a better product.

     

    Buy the Mag and have a look. Also is a dam fine Australian publication.