Microtech Ltx 12

[tyra skyline]

I Have A Gtr 33 Vspec And Have A Microtech Ltx 12 To Install If I Remove My Original Computer Will My 4 Wheel System Still Operate , What Will Hapen If I Remove The Computer

[R31Nismoid]

dont use then microtech is the easy answer.

get a PowerFC

[tyra skyline]

The Reason For Changing My Apexi Power Fc Is Because The 444cc Is Maxing Out At 100% Juty Cycle And I Have Install 680 Cc But The Car Is Running Rich , I Have A Pc Commander But Dont Know How To Program The 680 Cc . What Should I Do

[Sydneykid]

Master fuel correction on the Commander, the pure mathematical subtraction (444/680) is 35%, but , try minus 20% to start with.

On the Commander, "Settings" Menu, "Fuel/Ignition Timing Correction" Menu, "Inj Adjustment" use down arrows. Reference is Page 30 of the Commander Manual (the English language version for RX7). Most items are the same for Skyline.

Remember the PFC will "forget" this correction when you turn the ignition off. But it is usefull for determining how much to take out of the Injector Maps. You will need a lambda sensor to achieve the correct A/F ratios.

[cameron]

Go to SETTINGS > INJECTOR change them to 65% same as what SK worked out 444/680 = .65

For the MS you'll will have to find the best spot the car idle's on. Try +0.15 for a starting point and go up.

[tyra skyline]

ok i will try that setting .

at presant my static timing at the cas is 20degrees,at 1.2 bar my ignition timing is as 800,12,16,20,24,28,32,36,40,44,48,52,56,64,,68,72, 80,84,88,92,rpm

20 ,25,25,26,26,26,25,25,25,25,25,25,25,25,25,25,24,2 4,24,24,timimg map

is this a good timing map for 1.2 bar booste, my mods are

hks ,2530

apexi fuel pump & fuel regulator

680 cc injectors

arc intercooler,

hks intake pipe kit

engine is still standard.