Proper Tuning ... what electronics does that entail

[KenW]

4npower wrote:
size of the turbo is not the issue. you could run a big thumper(t-100) on the stock motor if you wanted to. the stock pistons and rods are good for
375-400hp....with a properly tuned engine of course.

What does "a properly tuned engine" mean? particular plugs + mag wires. ECU tweaks and tricks (eg. the AFC compensating at a certain rate, etc). How do you know when your engine is properly tuned?

on a related line - i'd like to upgrade my stock stereo with a single DIN unit - leaving plenty of space under it for an AFC (or some other box) and a turbo timer. Does anyone know of a unit that combines those functions?

[4npower]

a properly tuned engine has nothing to do with a certain type of plug or a certain kind of injector or any other certain type of product. properly tuned means that your o2 voltages aren't to low or too high or your egt's aren't to high or to low. the timming isn't being pulled back at wot.
but properly tuned to me might be a little different to somebody else. meaning i might tune my car to .83-.86 o2 voltages at wot, but the next guy might want .88-.90.
i tune my car by timming, meaning i let the stock ecu tune the car for me then i use a dattalogger to watch the timming and other sensors. i try to keep the timming above 28* at wot clear to redline, if the ecu pulls timming back to 25* at 4000rpms then i know i need to add a bit of fuel with the afc at 4000rpms. other things play a big role in this though, outside air temp, mas air temp, humidity, elevation, etc, etc...i don't know of many people that tune a car with thier timming, but the stock ecu is a great thing to use to tune a car......up to a certain point, probably around 450hp is when a stand-alone is in order.

bill

[NOMIEZVR4]

what does it mean if the 02 voltages are real high, or real low. what about timing and all, can you explain the whole concept, i have a logger and need to know, thanks.

[Dsmman]

Moved to the Newbies forum.