CVVT – What They Do & Why

Cvvt Hub

The CVVT job — burn off environmentally bad gasses produced in the first minute or so from a cold engine. CVVT technology superseded fussy air pumps after it matured enough to be a dependable component of passenger cars. See Wikipedia’s CVVT page. See MVS’s how to change the CVVT hub on P2 Volvos. See all […]

SAS Delete Theory


For those of you who also own Volvo, you would be familiar with “SAS Delete”. Remember that virtually all European cars (Volvo, VW, Audi, BMW, Mercedes, Porsche etc.) use the same setup for SAS, i.e., same Pierburg air pump, same air valve, similar ECU monitoring system.

Angle Gear & Transfer Case Terminology, Explanation

Awd Volvo P2 Haldex

The angle gear units do not have gear parts available from Volvo as spare parts. The bearings and seals are serviced but not the actual gears. One of the gears is mounted to a spindle using a specialized adhesive and is pressed on. The press fit makes that spindle not usable to properly retain a new gear pressed onto it.

Fast Friday #6 — Injectors, MAFs, and Power pt. II

Fast Friday Volvo Performance and Tuning

As performance levels rise so too do the necessary supporting components of the engine to reach the power goals you might have. Most fuel system upgrades are pretty straight forward and only consist of a fuel components I.E. Fuel pump, Injectors, and fuel pressure regulator. For the most part the Walbro series of fuel pumps are a popular cost effective option when it comes to replacing the factory pump.