A couple weird problems...

[WONit]

Okay here we go.....

I have an s13 with a red top in it with a blacktop head. bone stock with exhaust. fire's up on the drop of a dime. has no lack of power. now for the problems.

1- idle's rough as hell (engine jerks bad at idle). partially due to the fact that there is no trans mount in it atm. but it still shouldnt jerk the way it does.

2- when i drive kinda hard (like half throttle) it the rpm gauge jumps around real bad ,and so does the temp gauge. works fine just sitting still.

3- the oil pressure light goes in and out,i just put it on. do i need to prime it? sometimes when i hit the gas it wil go out,sometimes at idle it'll go in and out.

as for the idle problem i have checked the timing numerous times,checked intake for leaks.

gauge problems i have done nothing

oil light i have done nothing.

Any help is appreciated,thank in advance.

[WONit]

One other thing.... i cant remember if my last sr did it,but i can get boost without driving the car. i can hit 5-6 psi just by flooring it. by the time the tac hits around 3-4k i will be in boost. i own a turbo supra and it does not get into boost just by revving up.