There are three ways to blow a Coyote and the difference is when the boost arrives. A centrifugal blower like ProCharger builds boost as the engine revs, so it is strong at the top and soft down low. Roots and twin-screw blowers — Edelbrock E-Force and Whipple respectively — are positive displacement: they make boost from just off idle and give a flat, torque-heavy curve. Centrifugals mount on the front of the engine; positive-displacement units sit on top, so hood clearance is usually what decides it.
| Centrifugal | Roots / TVS | Twin-screw | |
|---|---|---|---|
| Example | ProCharger P-1SC-1 | Edelbrock E-Force, Roush | Whipple |
| How it makes boost | Belt-driven impeller, boost climbs with engine speed | Fixed air volume per revolution | Fixed volume, compressed internally before discharge |
| Boost at low rpm | Little | Immediate | Immediate |
| Torque curve | Rises toward redline | Flat and early | Flat and early |
| Where it mounts | Front of the engine | On top, replacing the intake | On top, replacing the intake |
| Hood clearance | Rarely an issue | Usually the constraint | Usually the constraint |
| At HRC | 4 Ford kits, $7,898–$10,648 | 12 Edelbrock Ford kits, $4,720–$9,596; 7 Roush kits, $8,800–$10,399 | Not stocked — built to order |
Choose centrifugal if you want the big number at the top
A centrifugal is effectively a belt-driven turbo: an impeller spun through a step-up gearbox, making more boost the faster the engine turns. That means a soft bottom end and a hard top end, which suits a car that gets revved and a driver who wants peak power. It also mounts on the front of the engine rather than on top, so it rarely forces a hood change. HRC's forced-induction Coyote builds targeting around 800 hp are typically ProCharger or Edelbrock.
Choose roots or twin-screw if you want the car to feel fast everywhere
Positive-displacement blowers move a fixed volume of air per revolution, so boost is there from just off idle. The result is a flat torque curve and a car that pulls hard from low speed rather than waking up at 5,000 rpm — which for a street car is usually the more enjoyable end of the trade. The cost is packaging: the unit sits where the intake manifold was, and hood clearance is the first thing to check.
Twin-screw is the more efficient positive-displacement option
A roots blower pushes air through; a twin-screw compresses it internally between meshing rotors before it reaches the manifold. That internal compression makes it more efficient at higher boost and keeps discharge temperatures lower, which is why twin-screw dominates at the high-power end. HRC has built a Whipple-charged Coyote to a 1200 hp target, though the kits are not stocked — they are ordered for the build.
Whichever you pick, the supporting parts decide whether it lives
Fueling, cooling and the clutch or converter all have to move with the power, and at higher boost the short block does too — which is why HRC lists a boost-ready short block as its own tier. A blower bolted to a stock combination is the most common way to find the limit of the stock combination.
Common questions
What is the difference between a centrifugal and a positive-displacement supercharger?
A centrifugal blower spins an impeller and makes more boost as engine speed rises, so power builds toward redline. A positive-displacement blower — roots or twin-screw — moves a fixed volume of air per revolution and makes boost from just off idle, giving a flat torque curve.
Is a ProCharger better than an Edelbrock supercharger on a Coyote?
They do different things. The ProCharger is centrifugal, so it is strongest at high rpm and mounts on the front of the engine. Edelbrock's E-Force is a roots-type positive-displacement unit that makes boost immediately and sits on top of the engine. Choose on how you want the car to behave and on hood clearance, not on which brand is better.
What is the difference between a roots and a twin-screw supercharger?
Both are positive displacement and both make boost from low rpm. A roots blower pushes air through to the manifold; a twin-screw compresses it internally between meshing rotors first. The internal compression makes twin-screw more efficient at higher boost, with lower discharge temperatures.
Which supercharger needs a hood modification?
Roots and twin-screw units usually do, because they replace the intake manifold and sit on top of the engine. Centrifugal kits mount on the front of the engine and rarely need hood work. Check clearance before choosing on power figures.
How much does a supercharger kit cost at HRC?
ProCharger centrifugal systems for the Coyote run $7,898 to $10,648. Edelbrock lists 12 Ford supercharger kits from $4,720 to $9,596, of which six are 5.0L Coyote applications at $8,796 to $9,596, and Roush's seven Coyote kits run $8,800 to $10,399. Whipple twin-screw units are not stocked and are ordered as part of a build.
Do I need engine work before adding boost?
Above a certain power level, yes — which is why HRC offers a boost-ready short block as a fixed-scope tier on the Coyote program. Fueling, cooling and the clutch also need to match the new power. Final scope is confirmed at intake.
Does HRC tune the car after fitting a supercharger?
No. HRC fits the system in-house at Huntington Beach by appointment; tuning is handled by a partner shop, and HRC has no dyno. Any power figure quoted on this site is a build target rather than a measured result.