My 4v motor has be detonating/pingin everytime i floored it. First it wasn't bad but it got worse and worse. On thursday i raced my friends STOCK 5.0 on the highway. I gave him the hit and a car and it was taking me forever to pass him. When i floored the car it was popping big time like it wasn't gettin spark and the RPMs were going a little up and down as it climbed.
Anyway i beeped my friend on the nextel and told him to hit it again. I gave him the same advantage as the first time car and the hit. This time i didn't floor the car i slowly gave it gas and he didn't even look like he was flooring it.
Well i figured out that it only pops hard when i'm floored the hell out of it. I haven't done anything to the motor since i got the car back so i figured it was the cheap Clark gas i was puttin in. It most likely was watered down. I called a few friends and tried to figure out how to fix it. I figured race fuel would be the best thing to put in and some Shell gas.
I put 3 gallons of 110 and 5 gallons of regular 93. I let my friend drive and we went on the highway. He asked me, "if he could floor it," i told him go ahead. When he floored it, it scared the crap out of me, the car hit so hard and was gone. All the popping stopped and the car pulled harder than i ever seen in every gear.
Has anyone ever put race fuel in and how different did your car act?
Anyway i beeped my friend on the nextel and told him to hit it again. I gave him the same advantage as the first time car and the hit. This time i didn't floor the car i slowly gave it gas and he didn't even look like he was flooring it.
Well i figured out that it only pops hard when i'm floored the hell out of it. I haven't done anything to the motor since i got the car back so i figured it was the cheap Clark gas i was puttin in. It most likely was watered down. I called a few friends and tried to figure out how to fix it. I figured race fuel would be the best thing to put in and some Shell gas.
I put 3 gallons of 110 and 5 gallons of regular 93. I let my friend drive and we went on the highway. He asked me, "if he could floor it," i told him go ahead. When he floored it, it scared the crap out of me, the car hit so hard and was gone. All the popping stopped and the car pulled harder than i ever seen in every gear.
Has anyone ever put race fuel in and how different did your car act?
thats alot of octane, seems ok for now but your best bet is to get a good tune, but its good to know your car is running better
Everyone i find in chicago that does tunes i'm afraid to take it to. I found on shop but they don't get there dyno for another month. I want to do the mail order tune but i have 19 pound injectors on the 4v so i really dont' feel like paying the money for the tune on those injectors. How much do mail order tunes cost anyway?


