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engine mods for turbo or supercharger

Time:2018-04-25 14:08Turbochargers information Click:

Intercooling IS absolutely necessary, if the charge air is not intercooled at high boost it is very unlikely that you will be able to control your detonation. Air gets very hot when compressed, and in anything other than low boost applications it is simply unacceptable to not intercool the charge air, since otherwise it will severely promote detonation. That is what intercoolers are for...cooling, the increased density is just a plus as a result of the colder charge, and I don't see why anyone wouldn't want that since a denser charge means more power.

Forged pistons and rods are NOT necessary, the only reason they would be is if you were planning on building a high revving motor or the combustion temperatures were wild. Granted, sometimes they are required, but the real key to a motors survival is tuning, not forged pistons...even a forged piston won't survive detonation for very long. The main stresses on a connecting rod are the tensile and compressive loads induced by the inertia of a piston at high RPM, the power load is less significant, clearly new rods are not always needed. Doubling a motors power output will not double the power load, however tensile and compressive load due to RPM increase exponentially proportionate to engine speed, meaning they get very high very quickly. So if you were to triple the engines speed the inertial loads the rods are subjected to will be nine times as great. Doubling the power output would maybe increase the power load by 20%.

A free flowing exhaust is an understatement, after the turbocharger you don't even need one. This would be ideal since the turbine is partly driven by the pressure differential between the two sides of the turbine. I would personally run a straight pipe out the back.

A new ECM is not required, since you will be supplementing fuel supply with a piggyback fuel controller, and ignition can be controlled with some sort of MSD unit, or left to it's own devices if knock sensor equipped.

Larger injectors and fuel pump may also not be required, they are only required when the stock ones are insufficient to support a proper air fuel ratio. Sometimes stock ones will be just fine for lower boost levels.

No one uses adjustable FPR's when turbocharging a naturally aspirated vehicle, they use rising rate FPR's, and those are completely inadequate for high boost levels, one must at least use a piggyback fuel controller.

An external oil cooler would be the last thing on the list of necessary things, again this is only necessary if the oil temperature is very high, overcooling of the oil can actually increase wear on the engine.

Headgaskets rarely blow due to boost pressure, and are by no means a weak link in the combustion chamber, when they do fail it is more likely the result of detonation. If one were to encounter problems with headgaskets blowing the best choice would be one with a built in wire that surrounds the circumference of the cylinder and creates a mechanical barrier against blown headgaskets.

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