You can make a Honda Civic go 160 mph. For about 20 minutes.
You can make any high performance car go 160 Mph, driven in anger, for maybe 20 hours.
You can make any high performance car go 80 mph for about 2000 hours.
That works out to about 160,000 miles of respectable high performance driving.
You can buy a Ford Mustang. And at 70–80,000 miles the transmission will fall out. And if you drive said Ford at the same speeds you would drive a high performance car, it will not get anywhere near 70k worth of enjoyable miles. I’ve seen Mustangs “pushed hard” die at 30k miles.
Why does a 6 cylinder early Jag E Type cost allot more than a later 12 cylinder version? Because the 12 Cylinder version is four times more expensive to maintain.
Why do 70’s to 80’s Alfa Romeos cost twice as much as a !@#king magnificent Porsche 944? Because the Porsche will cost you 10X to maintain. A rebuilt transmission on a 944S will cost more than the car. Been there, done that.
If you like a hit and run Mustang, you can swap out an engine with a new one for under 6 grand. Swap and enjoy! For the gear heads that’s 90% of the fun.
But I fail to see the point of spending 30k in performance parts to get a 30k car perform like a 60k car. 60k puts you in BMW M3 territory. Get real.
4 cylinder high performance engines make high horsepower (and low torque) at high RPM’s. Nothing wrong with that, except that you will wear out in short order clutches, alternators, water pumps and starters. A lower rev’ing 8 cylinder engine will not.
Whether its your CPU or your engine, heat destroys all.
Substituting horsepower for torque, will cost money. So if you replace a normally aspirated six cylinder piece of kit, with a high rev’ing four cylinder engine with a heat producing turbo on top, you will compound your maintenance costs.
Do the math.
You cannot drive any high performance car anywhere near fast enough on the street to do any damage to the car.
If you do want to drive the car in anger, go to the racetrack. Get a Porsche 911 or go to Ferrari Corse Clienti, and get factory support. ()
For the wealthy the Ferrari FXX will do the trick. For the rich the F-488 will get you 95% of the fun of the XX program.
Plenty of competition!
Little or no competition!
One last refinement: since 1971 (at last in the USA) it has been illegal to tune an engine.
You can tune a Weber or a Solex or a an old skool Holley carb, but you cannot tune a fuel injection system, mechanical or electronic.
Yes, you can drill out your Bosch air flow meter and get to the adjustment screw. But you are not passing inspection. You can reprogram the electronic control unit (ECU) but you will void your warranty.
Tuning is done via software. Its a self adjusting system. More air, more fuel at the injectors. Too much fuel at the injectors, the oxygen sensor will indicate increased resistance (unburnt fuel) and the ECU will cut the power to the injectors. Not enough fuel pressure in the rail, the ECU will spin up the fuel injection pump until the pressure regulator pops open. Etc.
Its a closed loop system.
You cannot tune a Bosch or Magneti Marelli electronic fuel injection system. Or any other. The fuel injection system cannot go out of tune.
You cannot increase valve lift or timing without changing the cams. You cannot get more air through those intake valves without changing the intake manifold. And you cannot get more exhaust out of the manifold without putting new exhaust manifolds upstream of your new exhaust pipe.
What can happen is you wear out your piston rings, and having lost compression, you loose power incrementally with the wear. Until your spark plugs are fouled in engine oil crud, burnt and unburnt, and the engine fails to fire.
Which happens allot quicker with hot running turbo engines, especially when spun at higher RPM’s…
Regardless, a perfect tune is a perfectly designed geometrically congruent closed loop system.