alright folks, i just got my first car, and it's a good one. i've come into an 85 GS, with a new 12a in it (only 115k on the body, 12k on the engine) and i have a few questions. i've been reading up a little but i still wonder



a) when i let off the gas the car shudders a little...it's noticeable and just a little annoying - is that normal? the car is an automatic



B) what are the best performance modifications for my first generation, the best bang for my buck, (i'm just a high school student) i've already looked at all the performance pages, but i need someone to give me their opinion based upon personal experience.



c) what oil do you recommend i get it changed with? my brother uses mobil1 in his eclipse gs-t, but maybe i should go with something else??



thanks



ian

First, welcome to the rotary world.



Not real sure about the shudder that you are getting. You might have the U-joints checked. But I would definately say it is not normal.



Best bang for the buck is an aftermarket exhaust system. Headers and a free flow exhaust make the difference between night and day. Check Racing Beat or Mazdatrix for systems. You want to shy away from some of the cheapo mufflers. The heat that comes off these rotaries will melt the insides, causing them to clog.



As far as oil, I've known people who have used synthetic oil with no problems. I think that you will find that most rotary guys(and girls B))

use regular dino oil. Most use Castrol. I've always used Castrol 20W-50 with no problems.



Anyway, good luck.

thanks viper, i apprieciate it



another question, i'm putting a cd player in there, but i can only find the harness for the 2nd generation...what's up with that? will that harness work in the 85?



here's another question after going out and running with a g-tech.



i read that my car's supposed to run around a 10 second 0-60 and a 18 second quarter mile at 83 mph...the best i can get out of it under any circumstance is 13 sec 0-60 and a 20 second quarter mile :unsure: any particular reason why this isn't working out like it should? i'm assuming that the car is just so old, but maybe there is something i can fix.

with the harness, youre SOL. youre gonna have to do some rewiring there.



ive never used a gtech. but those numbers are close to a stock auto rx7. if yours is, go with what viper suggested. it should be a noticeable difference.

do you know of any wiring guides or install pages for putting a stereo in there? i'm not exactly the best at the wiring thing. https://www.nopistons.com/forums/pub...DIR#>/wink.png

omfg 18 1/4



My best run is 15.6 on the 1320 ...and Im gonan run it again Tomorrow (Friday) and tring to get in the 14s and my engine is not ported..



Im gonan bring alot of ice with me ..to keep the intake cool on resting times between runs..Im gonan try to wrap the intake with a towel and ice ..colder gas..better runs..

ooh **** @ EmpDenied



I didnt notice your car is an automatic..The car looks clean as hell ..and sweet..BUT an auto on a RX is very bad...you cannot get the power gains that you can at high revs like a 5 speed...keep the car clean..learn abotu them..and try to get a 5 speed

take it easy on the guy.

the numbers came off a gtech thingy, stock exhaust and its an auto. not that its a bad thing, but slower than a 5 sp.

I wouldn't put too much stock in the Gtech numbers, you have to get it angled just right and drive on a nice level road to get a good accurate reading.

I had to reread his post,I didnt know it was an auto on the first post..









Its nice though...