the only way i know how to do this is to get a v6 or v8 or use a manual transmission.. is there any other way possible i can make my car accelerate faster without getting a new engine or transmission? if so what do i do?
Look for a Merkur XR4Ti in the junkyards. They have exactly the same engine, except with a turbo. Thunderbird or Couger Turbo Coupes are the same story except that the later ones ('87 and '88 I think) also had an intercooler, like the Mustang SVOs. If you can find one with a bad tranny or accident damage and a good motor, I would grab the entire engine. Make sure to grab the ECM and all the relevant portions of the wiring harness(careful, some ECMs will only work with either a manual or an auto tranny, not both). If you want to put a turbo (or a supercharger) on your existing motor, I would keep the boost very low unless you plan to rebuild the motor to handle the increased pressure and resulting extra strain.
Otherwise, you can add a few HP with high performance spark plugs and wires, a higher energy ignition coil, a low-resistance muffler (the good old turbo mufflers are cheap and work fine), and advance the timing a bit, but not enough to start the engine knocking. To advance the timing you may have to trick the ECM. I had to on my '91 Bronco by unplugging a connector while I advanced the timing and then reconnectig it after. These things won't make a 'Vette killer or anything, but they will make it a little faster, and you won't need to open up the motor. You also might notice a slight improvement in gas mileage. I've done these things on several of my cars, and sometimes I got better mileage after. Good luck!
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