Looking at buying a 93 Z28. Noticed for upgrades that they leaveout the 93's, and start at 94. What gives? Is it the red head step child? Is there years I should avoid?

 

...(No, I'm not going to say that)-delete thought about search button.

 

speed density is the biggest difference between 93 and other years...

 

There's nothing wrong with 93's, they just have a different type of engine control (as was said- speed density) than the 93-97 year cars. It's really no big deal at all.

 

What parts are you looking at? Just about every aftermarket part I see lists 93-97.

 

This link goes through the differences in detail:

http://www.f-body.org/oldfaq/html/faq/index.html

 

thanx, and even thou new here...I tried the search for lists of differences for lt1, nothing popped up.
The mods on this "Z" is headers, and cat back. Program upgrade. I havn't talked direclty to the current owner yet. Wish me luck.
great board

 

93's got some of the better parts actually, such as the m6 trans used a steeper gear ratio, hardned pushrods, etc.. checkout speeddensity.org (website w/ all people who own 93's)

 

The emissions compliant headers for the 93 are harder to come by because the a.i.r. hoses are different. You cna use a majority of the performace parts interchangibly. The biggest differences are the pcm, no maf, fuel components, and headers.