C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Modding my 90 coupe

Thread Tools
 
Search this Thread
 
Old Oct 7, 2002 | 12:19 PM
  #1  
aroulette's Avatar
aroulette
Thread Starter
Instructor
 
Joined: Sep 2002
Posts: 219
Likes: 0
From: The Colony Tx
Default Modding my 90 coupe

I am now stock. Could people list their first 5 mods, costs and gains I can expect? I am ready to compete with most anything on the road.
Reply
Old Oct 7, 2002 | 12:32 PM
  #2  
AS84's Avatar
AS84
Melting Slicks
 
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Default Re: Modding my 90 coupe (aroulette)

I don't really have a first 5 mods,I kinda did it with one shot. I would do TPIS headers, TpiS catback, open air lid with K&N, ADJ fuel pressure reg, and under drive crank pulley.
Headers-750
catback-600
air lid and filter-75
Fuel reg.-100
crank pulley with belt-100
With a solid launch very low 13's with a 6 speed car (possibly into the 12's....Vic89 for example)
Reply
Old Oct 7, 2002 | 03:27 PM
  #3  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: Modding my 90 coupe (aroulette)

I'll asume you mean engine/drive-train mods; mine are on my site.

I'm sending you mail with results of various engine mods.
Reply
Old Oct 7, 2002 | 04:00 PM
  #4  
Vic'89's Avatar
Vic'89
Safety Car
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Default Re: Modding my 90 coupe (aroulette)

All my mods are listed in the signature in the order they were installed.

I would do exhaust first, that is the biggest restriction.

All the other mods will give you small gains, but remember that 5 small mods will add up nicely.

All bolton L98's should run low 13's very easily.

Vic
Reply
Old Oct 7, 2002 | 04:05 PM
  #5  
BLUE ONE's Avatar
BLUE ONE
Racer
10 Year Member
 
Joined: Apr 2002
Posts: 415
Likes: 0
From: loughborough Leics ENGLAND
Default Re: Modding my 90 coupe (Vic'89)

Thats good advice your getting :)
Reply
Old Oct 7, 2002 | 09:41 PM
  #6  
90Z51Vette's Avatar
90Z51Vette
Racer
10 Year Member
 
Joined: Jan 2002
Posts: 355
Likes: 0
From: Sarasota FL
Default Re: Modding my 90 coupe (aroulette)

My first five on my 90 coupe were:

1. K&N air filter w/ open cover ($100)
2. Accel distributor cap & coil ($70)
3. Taylor SpiroPro Wires ($60)
4. AC Delco Rapid Fire plugs ($30)
5. Flowmaster Force II cat-back system ($500)

The most significant improvement from all the above is that it sounds cooler...

Mark

:cheers:
Reply

Get notified of new replies

To Modding my 90 coupe





All times are GMT -4. The time now is 05:36 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE