Difference between 98 and 99 (did a search)
Thread Starter
Teching In
Joined: Jul 2004
Posts: 4
Likes: 0
Difference between 98 and 99 (did a search) Ok I was reading in another thread that people were recommending someone that was looking into getting a used C5 to get a 99-up rather than a 97 or 98. Can someone give me reasons why? I read that it was harder to tune, is this true, and why?
thanks
thanks
Thread Starter
Teching In
Joined: Jul 2004
Posts: 4
Likes: 0
how much extra would it cost? I cant imagine to much.
I was reading a link from JRP's sig that stated this:
Is there something wrong with the 97,98 PCMs, are they harder to tune, are there less people that will tune these cars? Can you swap in a 99+ PCM?
I was reading a link from JRP's sig that stated this:
24. 1998 cars have a completely different PCM from 99+ cars
TECH Enthusiast
Joined: Jul 2003
Posts: 507
Likes: 2
From: Ankeny, IA
97 and 98 cars do require different tuning software than 99 and later cars. It's out there, but the pre 99's always seem to lag in support and features. I also recall a limitation on pre 99 MAF tables that limit the amount of airflow they can be tuned to accept. Although to be completely honest I have no idea if this is a big deal or not. The heads as mentioned above are another issue. The last difference is the availability of Active Handling and the HUD. If you want either of these options, you'll have to get a 99 or newer car. So there isn't anything really wrong with a 97 or 98 car. They just may be a little harder to get tuned and a head swap may cost you a bit extra. The cost difference to get a 99 is small enough that I usually recommend going that route to avoid these hassles. But if you find a pristine 97 or 98 that you really like, go for it.
Staging Lane
Joined: Oct 2003
Posts: 90
Likes: 0
From: Roselle, IL
The 97s and 98s and 99+ have different PCMs. However, HP Tuners (www.hptuners.com) is available for 98 and 99+ now.
Trending Topics
Thread Starter
Teching In
Joined: Jul 2004
Posts: 4
Likes: 0
when you say "different tuning software", do you mean shops that dyno tune cars need different software? And if so, is it harder to find a shop to tune the 97, 98s?
Can anyone link me to some info on the active handling and HUD?
thanks a bunch
Can anyone link me to some info on the active handling and HUD?
thanks a bunch
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo TECH Enthusiast
Joined: Jul 2003
Posts: 507
Likes: 2
From: Ankeny, IA
Shops will need specific software to tune the older PCM's yes. Most will have it. Development and support usually lags for the older PCM's, but is there. In a nutshell the HUD (heads up display) will display gauge information up unto the windshield similar to what you see in a fighter plane. Active handling is cornering aid that selectively applies individual brakes to correct the car when it senses the vehicle is passing its cornering threshold. I nice aid to learn the car and also nice if you hit that unnoticed patch of gravel in a corner.