What kind of numbers could I expect to achieve if I threw $5000 at my '08 FXDC and did the work myself so all $5000 was for parts? Is 150HP attainable? 175HP? How about torque numbers? What can I squeeze out of my bike?

 

If you don't know what numbers to expect, don't do the work yourself.

 

Dont' just throw money at it, take careful aim and you will have a monster that has very few original parts on it.

 

Capt, sniper is right on.
Choose the components carefully for a balanced package.

I do believe 150/175 HP is out of reach for only 5000.

Below, results at about 7000 bux.

mud..............


.

 

Guy at work won't shut up about the VMAX and I was curious what can be done for about the same total cost. Realistically, I'll be doing a full stage 2 over time but it might take a couple years or more.

 

One alternative would be to add $3k and get a used ZX14. It will likely be faster (they have nearly 200 hp, and are lighter), and more reliable (it would be stock).

Plus, you'd still have a Dyna which would be fun and reliable.

If you aren't an experience engine builder and tuner, you might never get maximum numbers, and you might make errors such that you don't save as much $$ as you think....don't ask me why I say this

 

So this it what you want to complete with:

Engine type - 4-stroke, DOHC, 4-valve, V-type 4-cylinder
Engine cooling - Liquid cooled
Displacement - 1,679cc
Bore x stroke - 90.0 x 66.0 mm
Compression ratio - 11.3:1
Maximum power - 147.2 kW (197.4 HP) (200 PS) @ 9,000 rpm
Maximum torque - 166.8 Nm (123.01 lb/ft) (17.0 kg-m) @ 6,500 rpm

 

Not really, I just want to shut the guy up before I revert to my younger self and end up getting fired. We all have annoying people at work but this guy is really getting to me. Not that I expect my bike to be the top performer it's just the incessant comments, dozens a day... and we're not even close to being friends so it's malicious in my opinion.

Really annoying...

I really just want to know what's possible.

If I wanted to compete with him, I'd kick his bike over and stab him.

 

You could always take his girl for a ride on your bike....but then she wouldn't be his girl....rotflol!

 

If the guy is proud of his bike being faster, or having more power then good for him. Harleys weren't geared or built to be a race machine in anyway. The closest that Harley got was with the VR1000 that never went through to production, instead the motor was put into the VRod.

The Twin Cam motor in the Dyna will make some good power, but building one that is naturally aspirated won't gain you anything unless you spend upwards of $8000+. The other thing you have to consider is the injectors. Screamin Eagle offers a set of High Flow injectors that flow 25% more than stock, but they are still only about 34-35lbs/hr. The majority of fuel control systems will run the injector at an 80% duty cycle and with these numbers the SE High Flow injectors will only feed a 110-115 hp motor adequately. If you go big, don't skip any part of the fuel system or you won't ever see the bigger numbers the motor can really make. For the current turbo market you can get a Trask kit for $5000, build the motor good for around another $3000-$5000 and really have an intimidating machine making above 150Hp, if not more depending on the bore you go up to.

You would be better off showing up on a Vrod that hasn't had a lot of money thrown at rather thn showing up on a Dyna that had another $10K tossed into it just to compete with a less expensive, more powerful stock bike