What Is Harley Davidson Stage 4

These upgraded components will maximize the amount of fuel that your V-Twin can burn which in turn increases its ability to create more power.

What is harley davidson stage 4. So before you opt for one of our legendary Stage 1 2 or 3 Full House Harley upgrades be sure you know what it is you want when it comes to the performance of your Harley-Davidson. For the highest power upgrade available well address the top end of your Harleys engine. All of the gaines are in the upper end of the powerband.

It comes with the cnc ported factory heads with larger valves and bee hive springs and they flow much better than stock. The new Screamin Eagle Street Performance Stage 4 Kit 103 Cubic Inches PN 92500011 184995 from Harley-Davidson Genuine Motor Accessories produces the maximum horsepower output for a. A Stage 4 on the stock 103 platform will gain you 103 hp with 110ft-lbs of torque and the Bolt on 110Ci cylinders with stage 1 gets you 105 hp pretty respectable for a stock freedom machine with new jugs and stock heads.

In many cases it would include a larger throttle body injectors depending on the specific model. We start with the increased diameter cylinder and high compression pistons as the Stage 3 upgrade kit. Check out this new 107 to 128 HD stage 4 kit with Bassanni stainless exhaust.

Make more power than the Stage 4 up to 4000 rpm. Youre looking at high-flow cylinder heads and the Godzilla of all throttle bodies. Ideal for riders who want the absolute best performance upgrade available.

However what might make a good stage 2 cam might be a little weak for a stage 4 engine and what might be a good cam for a stage 4 engine might be overkill for a stage 2 you know what I mean. Stage 4 bikes are pretty rare on the roads because such upgrades give you huge power but your bike will lose the rideability. Harley Stage 4.

Along with larger throttle body and injectors you will be needing more headwork than what you have done in stage 3. Highest level performance upgrade available to provide a maximum increase in displacement compression and flow. So to recap a stock 2016 Harley-Davidson bagger is putting out roughly 76 hp and 956 ft-lbs of torque.