Forced Induction Superchargers | Turbochargers | Intercoolers

VS racing 78/75 nex gen

Thread Tools
 
Search this Thread
 
Old Nov 7, 2022 | 10:40 AM
  #1  
shitbox's Avatar
Thread Starter
Teching In
 
Joined: Jun 2017
Posts: 48
Likes: 8
From: vegas
Default VS racing 78/75 nex gen

My car has always had a small amount of smoke, but i always thought it was coming from the engine.

well, i had the engine completely rebuilt, did the turbo kit, and fired it up yesterday……
it was good at first, but then as things started to heat up, i smoked out the neighborhood…. Looked like a steam locomotive 😂

anyways, when i did the turbo kit, i angled the turbo backward roughly 15 degrees to give it a pleasurable aesthetic. The drain is a 90* 10an fitting going down to the front timing cover.

when it was smoking, i felt under the vband exhaust and its completely soaked, leaking all over the charge pipe and stuff.

now, the plan is to rebuild the turbo first to see if that gets rid of it….. if not, does anybody have an oil restrictor on theirs or can someone give me an insight if a restrictor would work without burning the turbo up?

the engine has a melling m295hv and makes roughly 45-50psi at idle

as for the pcv system, completely eliminated. I have 1 10an fitting on each valve cover going to a catch can venting to atmosphere

The first pic shows the angle of the turbo (15 degrees)

the 2nd pic does absolutely no justice for the smoke…. It’s horrible.





Reply
Old Nov 7, 2022 | 12:39 PM
  #2  
Black_Sunshine_99's Avatar
TECH Junkie
10 Year Member
Community Builder
Liked
Community Favorite
iTrader: (11)
 
Joined: Mar 2013
Posts: 3,858
Likes: 840
From: Washington
Default

How is your drain setup?
Reply
Old Nov 7, 2022 | 01:11 PM
  #3  
shitbox's Avatar
Thread Starter
Teching In
 
Joined: Jun 2017
Posts: 48
Likes: 8
From: vegas
Default

Originally Posted by The ******
How is your drain setup?
10an 90 coming off the turbo, sloped down to 10an bung on timing cover
Reply
Old Nov 7, 2022 | 01:57 PM
  #4  
JAYPLUMB's Avatar
On The Tree
10 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2015
Posts: 123
Likes: 83
From: Middleriver MD
Default

I had issues on cold start with 80 psi of oil pressure of major smoke and oil leaking past the turbo seals. I went with the vibrant restrictor which fixed my issues.

https://vibrantperformance.com/oil-r...ng-kits-v1072/
Reply
Old Nov 7, 2022 | 02:13 PM
  #5  
Black_Sunshine_99's Avatar
TECH Junkie
10 Year Member
Community Builder
Liked
Community Favorite
iTrader: (11)
 
Joined: Mar 2013
Posts: 3,858
Likes: 840
From: Washington
Default

Originally Posted by JAYPLUMB
I had issues on cold start with 80 psi of oil pressure of major smoke and oil leaking past the turbo seals. I went with the vibrant restrictor which fixed my issues.

https://vibrantperformance.com/oil-r...ng-kits-v1072/
If the drain is good then this or Turbosmart make an oil regulator for turbos that works really well.
Reply
Old Nov 7, 2022 | 02:45 PM
  #6  
shitbox's Avatar
Thread Starter
Teching In
 
Joined: Jun 2017
Posts: 48
Likes: 8
From: vegas
Default

Ok cool; thanks guys! I bought the vibrant one. I will keep you guys updated on how well it works.

what size jet did you end up using? (If any)
Reply
Old Nov 7, 2022 | 03:03 PM
  #7  
ddnspider's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Aug 2004
Posts: 14,628
Likes: 1,778
From: FL
Default

Been running a restrictor on a rear mount chyna 7875 for awhile now, zero issues.
Reply
Old Nov 7, 2022 | 03:43 PM
  #8  
JAYPLUMB's Avatar
On The Tree
10 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2015
Posts: 123
Likes: 83
From: Middleriver MD
Default

Originally Posted by shitbox
Ok cool; thanks guys! I bought the vibrant one. I will keep you guys updated on how well it works.

what size jet did you end up using? (If any)
I used the .045 restrictor.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 08:40 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