Performance Modifications

We are here to help you understand your performance needs and answer your questions. Please see Performance Products page to view specific items we endorse.

PERFORMANCE BUILD

Build of the week 2022 ULTRA 114” S&S 475 cam, Heavy Breather, 2N1 Bassani Roadrage 116HP 126TQ

PERFORMANCE BUILD

This week’s Performance build is a 2015 Ultra Classic. 110” Tire Shredder Kit, S&S583 cams, 2N1 Bassani Roadrage.

The more air, the more fuel... the more power.

Think of your motor as a large air pump. The goal is to move as much air as possible through your engine.

The more air, the more fuel… the more power.

Performance modifications can be made in steps, or all at once, however… ANY mods made will require that you re-tune your engine to adapt to its new components.

Read about what each stage consists of and determine which one fits your riding style and your budget.

Once you change your bike from factory specs no matter which modifications you decide to go with, you’re going to need to re-tune it. Your bike has an ECM that has a map that tells it how to react to airflow dynamics. Once you modify the components of your engine that “map” should change to best incorporate the mods.

STAGE I

Objective: Increase engine air intake & exhaust to provide engine with more air to burn more fuel and allow combusted gases to exit cylinder faster.

Modifications: New Exhaust & Air Filter/Cleaner

Pros: No internal changes to engine.

Requires: Dyno-tune – which is expected to deliver higher torque & horsepower, more efficient combustion (which may lead to better fuel economy), cooler engine running temperatures, and better throttle response.

Cons: You will never want to ride a stock bike again!

After a Stage I modification it is highly recommended (but not mandatory) that you also install a heavy-duty clutch spring since the power generated will put a lot more pressure on your clutch.

STAGE II

Objective: Is to get more air into the cylinder by lifting the valves higher and keeping them open longer thus allowing more air into the cylinder.
Modifications: Stage I + Cams
Pros: No cylinder work; rider is able to select what part of the power curve he wants to derive most power (Top-end, mid-range or out-of-the-gate)
Requires: Engine work (5-7 hrs avg) to install new cams + Dyno-tune – which is expected to deliver higher torque & horsepower, more efficient combustion (which may lead to better fuel economy), cooler engine running temperatures, and better throttle response.
Cons: Requires some engine work. You will never want to ride a stock bike again!

After a Stage II modification your bike may need a number of additional modifications, not specified in any one stage since it will depend on the specific parts and previous modifications, your engine and the miles on it. These modifications will/could include lifters, push-rods, valve job, valves, valve springs, cam plate, oil pump, clutch kit, etc. One modification that is highly recommended after a Stage II is a heavy-duty clutch spring since the power generated will put a lot more pressure on your clutch.

STAGE III

Objective: Generate additional power by inducing a higher compression in the cylinder.
Modifications: Stage II + High-Compression Pistons
Pros: Higher compression allows you to capitalize off of Stage 1 & 2 by squeezing the extra air in the cylinder that the first two stages created for more combustion. Performance is enhanced and the motor can accommodate a more aggressive cam.
Requires: Engine work (9-11 hrs avg) to install new high-compression pistons and rings + Dyno-tune – which is expected to deliver higher torque & horsepower, more efficient combustion, cooler engine running temperatures, and better throttle response.
Cons: Requires serious and professional engine work. You will never want to ride a stock bike again!

After a Stage III modification your bike may need a number of additional modifications, not specified in any one stage since it will depend on the specific parts, previous modifications, your engine and the miles on it. These modifications will/could include lifters, push-rods, valve job, valves, valve springs, cam plates, oil pumps, clutch kit, etc. One modification that is highly recommended after a Stage II is a heavy-duty clutch package since the power generated will put a lot more pressure on your clutch.

STAGE IV

Objective: Generate additional power by pushing a larger amount of fuel-air mixture into the cylinder.
Modifications: Stage III + Big bore kit, CNC ported heads, Throttle bodies, injectors and air cleaner backing plate.
Pros: More displacement, Larger throttle bodies and injectors allow more fuel-air mixture into the cylinder – thus generating more power. Larger cylinder volume (by boring or changing them out).
Requires: Engine work (10-14 hrs depending on work) to install new larger displacement cylinders& pistons, throttle body, intake manifold, and air cleaner backing plate + Dyno-tune – which is expected to deliver higher Horsepower & Torque, and a WOOHOO throttle response.
Cons: Requires extensive engine work. You will never want to ride a stock bike again!

After a Stage IV modification your bike may need a number of additional modifications, not specified in any one stage since it will depend on the specific parts, previous modifications, your engine and the miles on it. These modifications will/could include lifters, push-rods, valve job, valves, valve springs, cam plates, oil pumps, clutch kit, etc. One modification that is highly recommended after a Stage II is a heavy-duty clutch spring since the power generated will put a lot more pressure on your clutch.

STAGE V

Objective: To make your bike stupid fast! This is an “anything goes” option, with the right knowledge, tools and money the sky’s the limit.
Modifications: Stage IV + Stroker kit (longer stroke flywheels), you name it!
Pros: Once you commit to this type of investment in time and money, you would be well advised to do some in-depth research into where and how you want to add mods and spend $.
Requires: Engine work (? hrs) to install modifications + Dyno-tune – which is expected to deliver higher torque & horsepower, more efficient combustion, and better throttle response.
Cons: Requires serious and professional engine work. Possibly engine case boring. If you are concerned about fuel mileage this IS NOT the kit for you!!!

You will never want to ride a stock bike again! A stage V development basically means, Accelerate until you see God, then back off slightly!

After a Stage V modification your bike may need a number of additional modifications, not specified in any one stage since it will depend on the specific parts, previous modifications, your engine and the miles on it. These modifications will/could include lifters, push-rods, valve job, valves, valve springs, cam plate, oil pump, clutch package, etc.

Performance Modifications

Performance Modifications

PERFORMANCE BUILD

PERFORMANCE BUILD

The more air, the more fuel... the more power.

STAGE I

STAGE II

STAGE III

STAGE IV

STAGE V

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