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

Finally running!

Thread Tools
 
Search this Thread
 
Old Jun 25, 2023 | 10:31 PM
  #1  
Shunyun's Avatar
Shunyun
Thread Starter
Racer
 
Joined: Sep 2022
Posts: 338
Likes: 67
From: Escondido, CA
Default Finally running!

Wow, what a journey! I bought my 88 convertible back in September for $3500 with a serious knock. Ended up being a spun rod bearing. I installed an Eagle moving assembly (about $1100. Also bought my neighbors stash of L98 and assorted leftovers from an 88 he tore apart years ago ($300), as well as an Edelbrock intake manifold and runners.

Many false starts, blunders, but I fixed my mistakes and got to today. Turned the key and she started right up! Sounds beautiful!

A question about break-in: it’s up on blocks still, so I let her idle while I set timing. Then once up to temp, ran at 2k for about 10 minutes. I noticed that, according to the dashboard display, oil pressure goes 18-20 psi at about 2k but zero (!) at idle. That normal? Also, any recommendations regarding break-in while on blocks and then once I’m on the road? I’m in The People’s Republic of Kalifornia so I have to get it smogged day one; any concerns with that (ie should I do a certain amount of break-in before taking it over there?)
Reply
Old Jun 25, 2023 | 10:57 PM
  #2  
topfuel67's Avatar
topfuel67
Drifting
Conversation Starter
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Feb 2016
Posts: 1,388
Likes: 339
From: Simi Valley CA
Default

Is that a new oil pressure sensor or the original? Those pressure readings would indicate serious problems with the oil delivery. I'd replace it before trouble shooting anything else since those sensors are really inexpensive. You may have a really difficult time smogging it if you don't have CARB stickers for anything not factory.
Reply
Old Jun 26, 2023 | 12:31 AM
  #3  
drive it's Avatar
drive it
Melting Slicks
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Apr 2001
Posts: 2,125
Likes: 225
From: Ca.
Default

Flat tappet cam-just use a good break in oil, then change it and filter for synthetic once broke in. For smog just go to the carb website and print out the eo numbers for anything that shows. The Edelbrock manifold is good to go for smog. Just so long as you didn't put a cam in that has a noticeable lope its fine-anything they don't see doesn't count on visual inspection. Odds are the oil pressure sender needs replacing-ditto above on that. Kali smog does suck!
Reply
Old Jun 26, 2023 | 12:53 AM
  #4  
Shunyun's Avatar
Shunyun
Thread Starter
Racer
 
Joined: Sep 2022
Posts: 338
Likes: 67
From: Escondido, CA
Default

Originally Posted by topfuel67
Is that a new oil pressure sensor or the original? Those pressure readings would indicate serious problems with the oil delivery. I'd replace it before trouble shooting anything else since those sensors are really inexpensive. You may have a really difficult time smogging it if you don't have CARB stickers for anything not factory.
Original. What should the oil pressure be?
Reply
Old Jun 26, 2023 | 12:54 AM
  #5  
Shunyun's Avatar
Shunyun
Thread Starter
Racer
 
Joined: Sep 2022
Posts: 338
Likes: 67
From: Escondido, CA
Default

Originally Posted by drive it
Flat tappet cam-just use a good break in oil, then change it and filter for synthetic once broke in. For smog just go to the carb website and print out the eo numbers for anything that shows. The Edelbrock manifold is good to go for smog. Just so long as you didn't put a cam in that has a noticeable lope its fine-anything they don't see doesn't count on visual inspection. Odds are the oil pressure sender needs replacing-ditto above on that. Kali smog does suck!
Roller, actually. Thanks.
Reply
Old Jun 26, 2023 | 01:20 AM
  #6  
drive it's Avatar
drive it
Melting Slicks
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Apr 2001
Posts: 2,125
Likes: 225
From: Ca.
Default

Roller-then just put it under a good load/throttle a few times for ring break in. Pressure at idle you want to see about 20+.
Reply

Get notified of new replies

To Finally running!





All times are GMT -4. The time now is 01:54 PM.

story-0
10 Corvettes to Drive Before You Die!

Slideshow: 10 Corvettes to drive before you die.

By Joe Kucinski | 2026-06-23 08:31:12


VIEW MORE
story-1
Corvette & Porsche 911: How Two Icons Conquered the Last 25 Years

Slideshow: Corvette and Porsche 911, how two icons conquered the last 25 years.

By Joe Kucinski | 2026-06-23 08:18:33


VIEW MORE
story-2
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-3
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-4
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-5
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-6
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

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


VIEW MORE
story-7
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-8
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-9
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