Usually maintain torque all the way to redline.Torque usually comes on rapidly over a small rpm band causing traction problems.Don’t make as much power as larger turbochargers.Smaller turbine wheels cause more exhaust manifold pressure (EMAP) causing more cylinder reversion of exhaust gasses, raising cylinder temperatures causing the motor to become more prone to detonation and pre-ignition.Torque falls in the upper RPM of the power band.Easier install due to smaller dimensions.Spool faster providing more torque lower in the power band. ![]() While 90% of the internet would tell you to pick the smallest turbocharger that meets your horsepower goals I would like to offer a different point of view after we go over the pro’s and con’s of each. It would be nice if turbocharging was like many other decisions where bigger is better, but not so. ![]() So you have decided to turbocharge your car or upgrade your existing turbo, but are stuck on what size of turbo would be right for you. Does a large turbo car make a terrible streetcar? Things to consider when picking and deciding on a turbo size for your build.
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