Hi guys, mine is a 348 of 92, w/o cats and standard exhaust. My mechanic (not from Ferrari) said he could improve the perfomance of my car by reprograming the chips, is that true? How reliable is this? I know one of the bad things about Ferraris, especially the 348, are the electronics, so I'm afraid of putting myself in troubles by letting someone re-mapping the chips. Isn't there any side effects ? The bhp gains are notorious? Please I need some advice...probably I'ld better by a 355... Thanks for you help.
I bought and installed the Powerchip from DEXM . Quick and easy install and haven't had any problems with the electronics also missing cats and installed a spider exhaust
We can't really say. It varies from car to car. The whole *point* about changing chips is to get your own air to fuel mixture closer to that magic powerpoint of 12.7 to 1 while at Wide Open throttle (WOT). So first you've got to know how close you are to *already* running to 12.7 to 1, which means that you need access to an exhaust gas analyzer to measure your own car's air to fuel mixture. If you are at 11.5 to 1 (i.e. too rich), then you've got to reduce fuel (or increase air to the engine. On the other extreme, if you are at 15 to 1 (i.e. too lean), then you've got to add fuel (or reduce air). Now, with all of that said, your air to fuel mixture most likely *changes* as you increase your RPMs from idle up to red line. If you have a steady air to fuel mixture that doesn't change, then all that you'll be able to do (along this train of thought) to increase power is to change your air to fuel mixture via the screws beneath your blue caps on your MAFs next to your air filter. If you DON'T have a steady air to fuel mixture ratio, but rather, have one that changes with different RPMs, then you need to change your fuel mapping curve...meaning that your car will need two new chips (one for each ECU). So you see, it all depends on your particular car. Some cars benefit greatly from new chips; other cars will perform worse with new chips. Getting the right fuel to air mixture ratio is known as "tuning" your car. Good luck!
Thanks guys for your help, but I'm thinking not do any thing for the while. After what i read it is not sure the car will be faster and in my case it was to be done by an amateur ferrari mechanic. the 348 is a a gorgeous sports car, not very fast, but it is still a Ferrari. It must stay as it is ...standard. Nuno Maia.
I have aftermarket chips in my 1993 348 tb. Can't notice much of a difference. However, I think it bumped up the rev limiter a bit higher.
I've been asking the same question. What guarantee's come with a chip upgrade? Unless it's specifically tuned to your engine I'm not sure that a guarantee can be given. Carobu Engineering has a chip out for the early 348 using 2.5 Motronic. I'm interested but would like some assurance that I will get a power gain. Anyone have any relavent experiences?
