PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Can Someone answer this??

Thread Tools
 
Search this Thread
 
Old Dec 28, 2002 | 01:59 PM
  #1  
LS1 CRAZY's Avatar
Thread Starter
Launching!
 
Joined: Nov 2002
Posts: 246
Likes: 0
From: Houston,TX
Default Can Someone answer this??

Is there really a difference between hpp's of say the same car but different yrs as long as everythings the same?? Ie, 98-02 T/A 6spd. Or even between a 98 T/A or Camaro?? I know the manufacturer has different part numbers and all but what the heck would the difference be?? Same Engines, tranny's etc?? Is it just a money maker??
Reply
Old Dec 28, 2002 | 03:44 PM
  #2  
Jake99SS's Avatar
TECH Resident
 
Joined: Nov 2001
Posts: 894
Likes: 0
From: Chicago, IL
Default Re: Can Someone answer this??

I would imagine there's a difference. The '98 LS1s had 28lb/hr injectors. In '99 and maybe '00, they used 26lb/hr injectors. At some point they switched back. GM also changed cams, intakes, and removed the EGR system over the years. All of those could potentially affect the code needed in the HPP3s.
Reply
Old Dec 28, 2002 | 11:38 PM
  #3  
Doc99SShome's Avatar
Staging Lane
 
Joined: Feb 2002
Posts: 97
Likes: 0
From: Newport, Michigan
Default Re: Can Someone answer this??

I am selling my HPP3 for my '99 LS1 SS. To check on this point I called Rob Rymer, he told me that the HPP3 units are year specific. So mine will work on any 1999 LS1 Camaro/Firebird auto or M6.

So if your car is a 1998, you need to buy an HPP3 for 1998 cars.
Reply




All times are GMT -5. The time now is 08:02 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE