Quote:
Originally Posted by Starman
Guys, as I recall the LT-5 is programmed for a 12:1 fuel/air ratio with the secondary injectors on. It will be faster if you lean it out (ideal stochiometric ratio for gas is 14:1), but it is programmed rich to protect against detonation. Let's face it, the 90-92 cars have 2nd generation ECMs and only read every 25 RPM. With Speed Density control and batch fired injectors there is not much to work with here. You can detonate the hell out of the car without it responding enough to prevent it, just on a bad tank of gas.
The 93 up cars have the P8 ECM that read every RPM. I've often thought that there would be more driveability there but have not found anyone that has made the change.
|
Not to pick a nit, but I double checked and the LT5 injectors (according to my sources) are sequentially fired, unlike the L98. That notion is supported by the fact there are individual (ECM) injector control leads on the Zs - not "ganged" (L98s, etc) for what it's worth.
P.