I am thinking of removing the fuel injectors from my '95 456 GT and taking them to a shop to have them tested and cleaned. Having done this for other cars, I've learned it can be a simple, cost-effective way to improve a car's performance. Have any of you guys done this to your engines? Any suggestions, warnings, or war stories? Also, it was suggested that I replace the intake manifold gaskets: seems pretty straightforward: is it? Torque specs? Thanks.
I did it on my BMW as preventive maintenance when it hit around 145k miles. They were removed, tested, cleaned in mulitple stages, then retested, and installed. I got a full report of the before and after results, but to tell you the truth, I noticed no difference. It was running fine before, and was fine after. But they did say a couple had poor patterns and a couple others were flowing less than the others. Cleaning them got everything back to a equal and balanced starting point. I'm at 161k miles on my BMW now. I will definitely do this on my 355 at the next major service.
I think the one improvement is likely to be cold starting on Ferraris. Cold start on many late model Ferraris is rough due to injector bleed-down after not being started for a few days. Injector rebuild should help that, I hope. Otherwise the solution is the old double start technique, which is only a band-aid. Taz Terry Phillips
