i am just going to get started on trying to make my 1994 z28 a descent car to go race on weekends and i wanted to know what would be the best mods i could do to it with a limited budget of about 2000-2500 i would really appreciate any suggestions thnx people

 

Is it a manual tranny (M6) or an automatic (A4)? If its an A4, what rear axle ratio does it have? Have you done everything necessary to insure all the components are in top condition, including plugs, wires, fresh fluids, new filters, etc? Is "racing on weekends" drag racing or something related to Auto-X or road racing?

 

yeah, what he said, maybe post a signiture so everyone knows what car you have as well, the initial tune up is really the way to go, my car ran like crap with all of these mods on it and a set of plug wires changes everything.

 

my car is an a4 and i changed the plugs and wires already and i dont know the rear axle ratio how do i find out and i am basically going to race straight line 1/4 mile

 

Well, in San Antonio, you will probably mainly going against Hondas----so I believe that Nos is going to be the best bang for the bucks. So just make sure your engine is in good condition and add juice.JMHO

 

There should be a build code tag in the glove box. If it has "GU2", its got the 2.73 gears in a 2-series carrier, if its got "GU5" its got 3.23's in a 3-series carrier. Generally, if the tranny has a selectable 1st gear on the console, and a 150+ MPH speedo, it probably came with the 3.23 "performance rear axle" package.

3.73's and a higher stall converter are really going to wake it up. Sticky tires are necessary, as well. Cold air intake, as much of an exhaust system as you can afford - catback at a minimum, long tube headers + catback is better. Then upgrade the LCA's and add LCA relocation brackets for good traction. Don't forget the low $$ item - bypass the coolant on the throttle body, swap in a 160* t'stat, reprogram the fans for lower on/off temps. Even with a relatively stock engine, a custom mail-order tune will net you at least 12-15HP, so that's a good idea when you have the PCM corrected for the 3.73 gears, and the lower fan temps.

 

ok thanks a lot people