First off, im new to this forum and wasnt sure if this was the best place to post my questions, but i figured this seemed like the best place

I recently purchased a 1992 Sentra Se-r with 102,000 miles on the odometer

the mods on it were new wheels...although same size as stock, pop charger, headers, and an exhaust, however still the stock cat, im kind of curious what kind of bump i should have over stock with those mods, 10-15 hp?

im planning on advanceing the timing but until i do, would there be any dissadvantages to running premium fuel?

also, it came with some sort of crazy alarm that is driving me nuts *** its loud as hell and even looking at the car seems to make it go off, i located it under the hood, would cutting the wires attached to it possibly be linked with anything else? or should i be free to cut the wires and get rid of it?

thanks in advance!

there's absolutely no disadvantage in running premium gas, that was pretty much all of us do here anyways.

i would replace the cat before you advanced the timing.

good luck witht the alarm, theres probably some kind of knob or dial on the actual alarm to adjust the sensitivity, you should check that out, if there isnt then find what kind of alarm it is and find the instruction manual online so you can disconnect it yourself.

there's absolutely no disadvantage in running premium gas, that was pretty much all of us do here anyways.

i would replace the cat before you advanced the timing.

good luck witht the alarm, theres probably some kind of knob or dial on the actual alarm to adjust the sensitivity, you should check that out, if there isnt then find what kind of alarm it is and find the instruction manual online so you can disconnect it yourself.

Agreed..I run premium in everything Ive ever owned :D

Why would you replace the cat because of timing? Mine has over 200k on it and it's fine. It's not plugged up or anything.

As with any used car, replace all fluids, inspect all ball joints and tie rods, replace worn parts, do a full tune up, run a couple tanks of gas through it, then start modding.

i didnt say replace the cat because of timing, i said replace the cat before you advance the timing. as in throw a high flow one in there, then advance the timing after that.

thanks a lot guys!

I'd say the mods you have on there currently are good for about 10-15 HP.

There is absolutely no need to replace the stock cat unless it is damaged. Our stock cats have about a 2.5" innner diameter and flow quite well.

Bumping the timing up is a nice mod for a couple free HP if you can afford the 91 octane.

There are not any disadvantages to using premium fuel other than it being more expensive. It will improve your gas milage so it might even out in the end.

As for the alarm, I would do some research like lostinthemasses said and look for a way to adjust the sensitivity. Whatever you do, make sure and disconnect the negative battery cable before attempting to cut any wires or working on any part of the electrical system.

i would think that throwing a high flow cat in there would be a good idea because he already has headers and a muffler.

i would think that throwing a high flow cat in there would be a good idea because he already has headers and a muffler.

Not advised or necessary. An expensive way to get almost nothing. You probably would not even be able to tell the difference on a dyno. Especially since he has pretty low miles.

I notice better gas mileage with premium to the point where it is worth putting in. Advance your timing to the top of factory spec but set the idle first and check the rotor is properly centered. Make sure you are in timing mode.

well, i'll definitely keep that in mind for the future then, i've got 208k on my car and the cat's never been changed out, so when i replace it i'll just buy whatever's cheaper. the high flow cats and y-pipe made a world of difference on my taurus sh0, so i figured that it would make an even bigger difference for a b13.