yup it is it get 15 second quater miles im going to have some one look at the car and hopefuly resolve the problem
stop using quarter miles as a gauge of performance
its not an accurate measure of a cars performance
take it to someone who knows the zed and get it sorted properly
your just wasting money suing randoms to read a dyno output, you need someone who actually understands the Zed
Don't you live your life a 1/4 mile at a time like the rest of us?