Whilst having a couple of bourbons and making some jerky I got to thinking.
I've got a little extra tucked away in the cunning kick so, what can I do (motor wise 96cu, 07 fatboy, 22000kms) for 3k?
I spoke with the HD shop down the road and they will do a stage 3 for 3k. I already have SE Tuner, RSD cleaner and V&H Bigshot staggereds on.
Question is. Is this worth it? What other good options are there?
A mate has 204 cams in his but I would like a little extra. Some good torque 2500-4500 with more go etc.
I grew up on 2t MX bikes but have not yet delved into the world of motor wise pulling this one apart, so that adds on the fact that someone else has to do it.
Pretty basic and probably asked before but couldn't find too much using the search function.
Any ideas appreciated.
Cheers.
It's not rocket science to pull the top end apart if staying under 107 CI if you have worked on motors before, drain the fuel tank first, buy a couple of allen keys to modify with the angle grinder to fit the throttle body bolts, you may need a cam bearing removal tool. Buy a workshop manual for the procedures and torque values. M&M cycles have S&S kits for what you are looking at doing at a reasonable price, quality of the components would be better too. Some people don't think you need roller rockers etc until your over 600 lift on the cams, 120's don't even have them. Not sure which cam chain drive setup you have as they changed somewhere near 2007, the later twin cams have a better chain drive setup, mine is 2008 and it is fine with chain drive cams. If you buy a complete kit then those decisions have already been made for you by S&S. You can get your standard throttle body bored and ported which works very well and is a cheaper option and will outperform the S.E. one. Postage from the USA is not too bad and doesn't take that long. Support the local people when you can, but when they don't stock the bits I'm after (which happened a lot), it's US postal from the US, it gets to WA quicker than stuff from the eastern states does and the postage is not a lot more. M&M have S&S kits which I didn't see on the S&S site, they will also get the ones not on their web site if you ask.
Its cheaper to do what you want to your motor in one go then to keep upgrading in stages, or upgrading and then downgrading again, learn from the expensive mistakes a lot of us made there, "SEARCH" on this site at least, do some searching on the S&S site for recommendations (more believable than the Harley one) and Indie motor builders. Don't get carried away chasing the highest numbers on a dyno unless you really have to have them, aim for where you spend most of your time when your out riding. Top end power comes with the loss of bottom end torque. Everones got an opinion and mine is aim for a good wide midrange torque curve on a street bike. Chasing HP in a Harley is all top end power, it is a mathematical function of torque and thats why it always cross's the torque curve near 5,000 RPM on the dyno graph (forgot but think its 5250 RPM). A Harley twin cam red lines near 6,000 RPM so the HP part is not going to be a very wide power band, quite different to a jap or MX bike. Torque bikes are fun to ride too as the power is right on the throttle and no need to drop a gear or two to accelerate. A high point on a dyno graph giving a high peak figure is not as good as a nice wide flat curve. Sounds good for bragging or driving a generator at fixed revs, but not as useful on the road. The bigger must be better, or fashion looks good, line of thought with motor parts does not work so well when chasing torque.
The Harley oil cooler kit with the thermostat which only opens when the motor is hot, works well in Perth summers from watching the oil temperature guage, very happy with mine, works better than I thought it would. Got it on ebay or Amazon so it wasn't much and a lot cheaper than a overheating motor. Don't know if its the best system but it works.
Harley's have a patent on extracting money from your wallet, its like an addiction, expensive but fun. Am convinced they sell low spec bikes slapped together so they can sell a bucket load of bits to upgrade them at an inflated price.
A well built 106 or 107 is a probably the best value out there, cheap if you do it yourself. Get a good dyno tuner to tune it and its happy riding. A lot less than the $12,000 I was quoted for a drive in drive out 120 and you can still frighten a 120 owner. Lots of satisfaction from having done most of it yourself. Excellent value for money, well for a harley anyway.
Spend some of the money you've saved on the brakes and suspension, they are very ordinary as well. One word for the front suspension INTIMINATORS, best value for money I've seen in a long time. The rear depends on how much you want to spend, search function on this site or google. Lot of people like Lyndall pads as a good brake upgrade and value for money.
So after some procrastination I have some gear on its way over from the states for this upgrade.
I went with 103 cylinders, pistons, heads ported/decked (pic) and some cams.
All in all seems like it will be decent upgrade for the bike.
The heads were decked .010 so comp will be 9.93:1 with a .040 gasket. I am going to use Andrews 55's for this as well. I have the flow chart if anyone is interested.
This is the first crack I have had at this and I wasn't after anything out of control.
Something to widen the grin, stay rideable with some mid torque.
Thanks for all the info guys have supplied definately helped me make a D about this, especially doing it all at once.
Bucky
Why fix something that is not broken, why pull apart a low mileage bike, I often ask myself why would you spend more money to try and go faster on something that doesn't brake or handle.
Anyway that is my personal opinion, I think my 96ci Fatboy goes great the way it is :-)
Here you go Tuss, some more porn for you lol. Don't worry mate I thought it looked good too.
I thought of the 030.gasket, I guess that would take it over 10. Does that effect reliability etc??? Some say yes, others no. Happy just to get it together and see how it goes.
Yeah it does have 22k on the clock, but I want to start doing a couple more trips and with some kit on there I wanted some more go. Guess it is an addiciton. Hey, a blokes gotta have some vices.
Plan is down the track when I get sick of work, I would like to start doing this all myself, so this is dipping the toe in I guess.
Buck
there is a big picture to getting engines right , and head are % 20 of the build , now , % 80 to go guess which parts ?