FUEL CUT and 180kmh/112mph SPEED CUT

[Callan]

right i want to clear this up as it seems not to of been explained on here in a sticky, so il start

FUEL CUT

Fuel cut is where your stock ecu limits the boost pressure to a maximum of 12-15 psi (it will be different on cars with a different turbo setup BUT you should have a fuel cut defencer and fuelpressure regulator for this)

This can be caused by simply changing your air filter or exhaust system to a better free flowing item or can even be caused by cold weather as the air is more dense

The way to get rid of this fuel cut is to fit a manual 'hks' fuel cut defencer or self setting 'JAM-Greddy' boost cut controller

These are simple to fit and will get rid of any fuel cut issues, however on stock turbo 15-17 psi is the safe maximum limit, Also if raising boost to a safe level eg. 1 bar (14.7 psi) the standard actuator will not be able to hold boost andwill drop off, a Toytuning actuator or a HKS actuator will be needed

SPEED CUT

This is where the speed of your car after 112mph/180kmh is limited, in japan they make all factory cars limited to that speed, if you wish to remove this limit a mechanical speedo convertor will need to be purchased, this also makes your clocks into MPH and is very simple to fit, PM me or MsN if any questions about that

If your speedo is out byt this, this could be due to after market wheels changing your speedo, but thats a different kettle of fish

any questions cosworthcal@msn.com or PM

CheeRS.CaL