supertbird89
Registered User
I have an 89 t-bird supercoupe with some engine modifications. I have an 70mm bbk throttle body, proted heads and intake manifold, kook shorty headers with down pipes, 2 1/2 exhaust, supercharger pulley, spec 6 puck racing clutch and 11.5lb flywheel, 3:55 rear end gears, adjustable fuel pressure regulator, 38lb injectors, 75mm calibrated mass air flow sensor ,and 255lph fuel pump. And before i had put all these parts on i blew the stock head gaskets, both of them. So in tearing the heads off, i thought i would had some performance parts, so i figured it also wouldn't hurt to through some 99 mustang fel-pro 3 layer steel head gaskets on. And with in less than 200 miles i blew them and i mean between the cylinders i am missing about a quater of an inch. And on this second tear down i noticed that the head bolts on the outer edge of the head, the bolts were alittle easier to break free than the ones under the valve cover. And the guy i bought the car from had told me that the ecu had been chipped, havent looked yet to see if it is, but i was told that the early chips made for the SC messed with timing a lot. So i was thinking that under boast when timing is already advanced could this chip be advancing timing even more causing extreme cylinder pressures, which happens under a lot of advanced which would cause the head bolts to strech and let me keep blowing head gaskets? And what would be a could head gasket to run? And is there a good chip out there to maybe allow me to tune the engine alittle bit? And so i just ordered some ARP head studs to help the bolt streching a bit. PLEASE HELP