We performance modify your JDM Spec CT20 Supra 2JZGTE turbo's to support the Evo 3 16G compressor wheel (or your USDM CT12b to GT28 spec) and machine in a custom Inconel turbine wheel to match. Like your stock twin turbos in your Supra? Like the drive ability and don't want to upgrade to a single turbo? Want to keep your factory ECU? Want to get rid of the weak and tiny CT20 ceramic turbos on your Supra? Tired of being limited to 350hp or so? Yes, Yes, Yes, Yes, and Yes again! We cannot make promises for a faster turnaround time Please expect a delay of 6-8 weeks or longer for this service to be completed. These are good uses of MMC.For example, consider a shaft that must go through a hole with clearance between the two.The MMC of the shaft would be the Maximum Diameter.The MMC of the hole would be the Minimum Diameter.If the MMC of the shaft is always smaller than the MMC of the hole, you have guaranteed there will always be clearance between the parts.APPLICATION (JDM/USDM/EURO) MkIV Supra or Aristo twin turbos: 2JZGTE. The other side of the tolerance range would be the Least Material Condition.The only GD&T symbols where you can apply Maximum Material Condition are:– Straightness– Parallelism– Perpendicularity– Angularity– True Position (the most common use for MMC)Why Use Maximum Material Condition?Let’s say you want to ensure two parts never interfere, or you’d like to limit the amount of interference between parts when they are at their worst tolerances.
Likewise, it is the largest pin diameter because a smaller diameter would remove material.On drawings, MMC is written simply as an M inside a circle:MMC is a circled MMaximum Material Conditional is one of the dimensional limits on a part.
Some examples of MMC include:– Smallest hole diameter– Largest pin diameterIt is the smallest hole diameter because a larger hole removes material, hence the smallest diameter provides for the greatest amount of material. Typical examples of features of size include:– Hole diameters (which are cylindrical surfaces)– Plate thicknesses (two opposed parallel surfaces)– Pin and Boss diameters (also cylindrical surfaces)– Ball Bearing diameter (a spherical surface) Maximum Material Condition (MMC)Maximum Material Condition (MMC) refers to a feature-of-size that contains the greatest amount of material, yet remains within its tolerance zone.
Beginner’s Guide to GD&T Maximum Material Condition Feature-Of-Size (FOS)Surfaces and sets of parallel surfaces associated with a size dimension are called features-of-size (FOS).
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