Hey guys, I've got this 91 gt 347 stroker. I've had it for awhile now and I wanted to get more performance. It was recommended to port and polish the intake and exhaust ports on my tfs heads. We found out a lot of porting places use an abrasive material to do it, like gritty sand and flow it thru the head port. So I got with my friend that works at shop and we decided to try it ourselves. We got a bag of sandblasting sand. He wanted to suck in the sand through the intake so it would port it out and then push it to the intake runners and out the ehxaust runners so it would port the exhaust ports as well.
I was worried that it might cause problems but he said it'd be OK as long as we didn't suck to much in at once. After running the car and letting it suck in sand we got about half way through a 25 lb bag. The check engine light was on and the engine was bucking and kicking and sounding really weird. We stopped took off the sand supply and hooked the car back up normal. We tried to start it again and it was really hard. Once started it couldn't idle and kept making weird noises. We took it out and drove it and it started to make scraping and knocking noises.
Help! Can anyone tell me what to do! My buddy only has Hondas so he doesn't know much about modded stangs. Im worried I messed up my motor.
I was worried that it might cause problems but he said it'd be OK as long as we didn't suck to much in at once. After running the car and letting it suck in sand we got about half way through a 25 lb bag. The check engine light was on and the engine was bucking and kicking and sounding really weird. We stopped took off the sand supply and hooked the car back up normal. We tried to start it again and it was really hard. Once started it couldn't idle and kept making weird noises. We took it out and drove it and it started to make scraping and knocking noises.
Help! Can anyone tell me what to do! My buddy only has Hondas so he doesn't know much about modded stangs. Im worried I messed up my motor.