starting my s13 without using the clutch

[Natty]

Originally Posted by mtbr64

no its not that i do it i just wanted to know why it does it? its like the engine vibrates hard because its not in a high rpm
also my car previously had a starter on it but it got taken out could that be the cause of me being able to start the car without the clutch?

I don't understand what you are saying about the RPM issue. If you are in 5th gear at 60kph, it will shake. Try using 3rd gear.
If by "starter" you mean a remote starter, yeah, that would be the cause of it. For the car to start, you have to acticate the clutch interlock relay, which is done by pressing down the clutche pedal. The previous owner would have to have disabled it in order for the remote starter to work.