These are available on e-bay suggesting

 

 

 

This is a Tuned Eprom chip from a Japanese tuner, the affects of the chip are as follows:

 

Remapped timing and fuelling

Removes top speed restriction, common 180mph top speed on standard engine and gearbox

Increases Rev limit to 7300 rpm

Removed Boost Cut, so you can increse boost up to 17psi if desired

Fitting instructions included*

This chip will give approx 75hp at 16psi boost. This chip was tuned on a rolling road facility using the appropriate programming in Japan to produce a chip that could be safely used by every Z32 300zx Twin Turbo engine 1990 - 93. Please note that this does NOT include boost jets or controller for turning up the boost. Auction is for chip and socket only.

 

Please let me know at the end of the auction if this is for a Auto or Manual.

 

*Fitting of this Eprom Chip will require the ECU to be opened up and the Eprom soldered in. This is not a DIY job unless you are good at soldering. But a Computer repair man or similar should be able to do this cheaply.

 

Would this actually increase power without any boost control or jets????

chips may *slightly* increase power without a boost increase, but the main reason for fitting one IS to increase the boost ;)

 

theres plenty of people on here that may be able to help you anyway :)