C4 General Discussion General C4 Corvette Discussion not covered in Tech

L98 Performance Parts?

Thread Tools
 
Search this Thread
 
Old Aug 27, 2010 | 10:37 AM
  #1  
BlackJack325's Avatar
BlackJack325
Thread Starter
Instructor
 
Joined: May 2010
Posts: 110
Likes: 0
From: McAllen TX
Default L98 Performance Parts?

Just wanted to ask you guys with L98's, what go fast parts you got, in what order did you get them and which upgrade gave you the biggest power boost? Also, where is a good place to get the parts?

1/4mi times would be good if you dont mind.

Need ideas for a 90 L98 4Auto

Last edited by BlackJack325; Aug 27, 2010 at 10:39 AM.
Reply
Old Aug 27, 2010 | 04:31 PM
  #2  
mdlfcrss's Avatar
mdlfcrss
Burning Brakes
 
Joined: Aug 2006
Posts: 1,123
Likes: 1
From: Rockland County NY
Default

Originally Posted by BlackJack325
Just wanted to ask you guys with L98's, what go fast parts you got, in what order did you get them and which upgrade gave you the biggest power boost? Also, where is a good place to get the parts?

1/4mi times would be good if you dont mind.

Need ideas for a 90 L98 4Auto
You might as well start with the free stuff, like opening up the air box and removing the "frisbee". Your next logical step should be the exhaust. That's one of the biggest power robbers the L98 has. Look for a set of long tube headers, maybe a free-er flowing cat than the original and finish it up with a nice cat back system. My personal preference in cat backs is the Corsa...almost no droning! I happen to have Hedman headers and getting to a couple of the plugs can be a real challenge...you might want to investigate them a little before making a purchase. Good luck.
Reply
Old Aug 27, 2010 | 05:19 PM
  #3  
jeffs40thgtp's Avatar
jeffs40thgtp
Racer
 
Joined: Sep 2009
Posts: 306
Likes: 0
From: broken arrow ok
Default

air intake , no cats and only tpis headers are the way to go for long tubes... F hedman, and i also have a set of brodix track1 heads, next on the list is tpis ram intake and 52mm tb and zzx cam it should make 425-450hp easy after that good thing i have the 6 speed i would hate to keep blowing up a 700r
Reply
Old Aug 27, 2010 | 05:20 PM
  #4  
jeffs40thgtp's Avatar
jeffs40thgtp
Racer
 
Joined: Sep 2009
Posts: 306
Likes: 0
From: broken arrow ok
Default

Originally Posted by BlackJack325
Just wanted to ask you guys with L98's, what go fast parts you got, in what order did you get them and which upgrade gave you the biggest power boost? Also, where is a good place to get the parts?

1/4mi times would be good if you dont mind.

Need ideas for a 90 L98 4Auto
start with TPIS.com they make some of the best stuff for the c4
Reply
Old Aug 27, 2010 | 05:22 PM
  #5  
TXUSAF's Avatar
TXUSAF
Instructor
 
Joined: Jul 2008
Posts: 101
Likes: 0
From: NC
Default


replace the whole exhaust system, makes a night and day difference. upgread your airfilter, its cheep, and lets your car breath. i also have hedmen hedders, i put them on myself. took about 6-7 hrs. thoses spark plugs are a pain. also, clean the intake manifold, i took my ENG apart, it was so dirty, i don't know how the car even ran. another thing to look into would be a good tune up on a dyno.
Reply
Old Aug 27, 2010 | 05:26 PM
  #6  
jeffs40thgtp's Avatar
jeffs40thgtp
Racer
 
Joined: Sep 2009
Posts: 306
Likes: 0
From: broken arrow ok
Default

Originally Posted by TXUSAF

replace the whole exhaust system, makes a night and day difference. upgread your airfilter, its cheep, and lets your car breath. i also have hedmen hedders, i put them on myself. took about 6-7 hrs. thoses spark plugs are a pain. also, clean the intake manifold, i took my ENG apart, it was so dirty, i don't know how the car even ran. another thing to look into would be a good tune up on a dyno.
i had some hedman's befor the tpis lt- you should look in to getting some , better performance and it took me 2-3 hours to put them on and spark plugs are easy to cause they based the headers like the stock ones so they dont block the plugs
Reply
Old Aug 27, 2010 | 06:01 PM
  #7  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Default

Take the drivetrain out and pretty much replace everything. Piece at a time or pieces as they break

You need to establish a plan realistic goals and set a $ limit you can spend before turning the first wrench.
Reply
Old Aug 27, 2010 | 06:55 PM
  #8  
mikeb's Avatar
mikeb
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2004
Posts: 22,308
Likes: 216
From: Sussex,Wi
2023 Corvette of the Year Finalist - Unmodified
2022 C3 of the Year Winner - Unmodified
Default

Originally Posted by cuisinartvette
Take the drivetrain out and pretty much replace everything. Piece at a time or pieces as they break

You need to establish a plan realistic goals and set a $ limit you can spend before turning the first wrench.
L98 Performance Parts?

Jumbo Shrimp.

Pretty Ugly.

Near Miss.

I gotta million of um.

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Aug 28, 2010 | 11:21 PM
  #9  
l98tpi's Avatar
l98tpi
Max G’s
Supporting Lifetime Gold
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
Default

Originally Posted by jeffs40thgtp
start with TPIS.com they make some of the best stuff for the c4
tpis.com and get the insider hand book and read it to understand what works. I wouldn't waste the money on the mini ram unless you own a boat or track the car and plan to stay above 5500rpm constantly.
Reply

Get notified of new replies

To L98 Performance Parts?





All times are GMT -4. The time now is 07:00 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE