Hello everyone. I own a 98 Contour V6 and have a little problem. I don't dare to race other people on the road anymore because I don't know when the car is going to start behaving badly. Every day, at least 3-4 times when I gun it, car hesitates. Sometimes, it shakes until it reaches 3-4K RPM but once I shift to next gear, it starts again until it reaches that RPM. Sometimes, it will not do that, but it will accelerate like a yugo. It would take forever to get RPM going and gain speed. It takes sometimes 15sec to get to 60 because of how slow its accelerating and RPM going up. Sometimes of course, car will drive just as it should and it will fly right of. I raced a friend at work who has a 05 spec v with headers, exhaust and nismo cold air intake. His hp should be around 200. First time we raced, car was going the way it should, I had him in 1st easy and once I got to 2nd, car started acting stupid. We tried at the next light, but car was stupid even in 1st. Then from the 35MPH roll, same problem. But I just don't know when it will happen. This might help. If I disconnect air box and rev engine by hand under the hood couple of times, the engine will of course make load and beautiful noise because air box is off and its sucking direct air from outside. If I do that, the car will fly once I start driving it right after that. So, I'm thinking its something with the air supply but I'm just not sure. I was thinking about installing cold air intake kit. Please help.
Thanks