What is the maximum boost I can run on a standard 7MGTE with 3" cat back exhaust and air filter? I am running 10psi now and want to turn it up to 14psi but am worried about my head gasket. Any comments or suggestions would be appreciated.
Knowing that these engines r prone to head gasket failure suggests to me that if you do intend to up the boost to 14psi that you make sure that the charge air is kept at a reasonable temp, and have the computer tuned to suit the fuel that you use and the mods you have done to the car. This should at least keep the engine from detonation hence causing head gasket failure.
Make sure u run the factory red toyota coolant too to stop corrosion on the head and increase head gasket weakening. Lots of 7mgte with blown head gaskets have been running on aftermarket coolant. You'll also hit boost cut if you tweak much more than 10-12psi.
Sun, 22 September 2002 01:01
