Forced Induction Superchargers | Turbochargers | Intercoolers

Wastegate Size?

Thread Tools
 
Search this Thread
 
Old Apr 14, 2009 | 07:35 PM
  #1  
Super Slow SS's Avatar
Thread Starter
TECH Enthusiast
iTrader: (9)
 
Joined: Oct 2005
Posts: 702
Likes: 0
From: Greenville, Raleigh NC
Default Wastegate Size?

I have a Precision 74GTS, with a .96 ar. Butt mounted, just needing to know if a 38mm will be enough or if I should go for the 44. I plan to run between 8psi now and up to 14 or so later.
Reply
Old Apr 14, 2009 | 07:42 PM
  #2  
dreamls1's Avatar
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

U need to go 44 for sure. I have a t76 and have a 44.
Reply
Old Apr 14, 2009 | 07:55 PM
  #3  
Super Slow SS's Avatar
Thread Starter
TECH Enthusiast
iTrader: (9)
 
Joined: Oct 2005
Posts: 702
Likes: 0
From: Greenville, Raleigh NC
Default

Yea thats what i would think, but i know a guy running a 38 on a t76 without creep.
Reply
Old Apr 15, 2009 | 09:41 AM
  #4  
DrTurbo's Avatar
LS1TECH Sponsor
iTrader: (3)
 
Joined: Mar 2006
Posts: 3,966
Likes: 2
Default

We have run the Turbosmart 38's without a problem in rear mounts.
Reply
Old Apr 15, 2009 | 11:45 AM
  #5  
bboyferal's Avatar
TECH Junkie
iTrader: (9)
 
Joined: Apr 2005
Posts: 3,472
Likes: 0
From: Miami, FL
Default

Everyone will tell you to go bigger...

Personal experience: In my car, I've gone through a turbo, a motor, and many other things... The Turbosmart 38mm WG that came with my kit has outlasted everything else. It held 6/7 psi from the spring and 8 psi with a Turbosmart MBC (still on the car too!) with NO problems for almost two years. When I had my motor built, I adjusted the MBC, tuned it for 15 psi, and I'm still on the same WG for another two years today.

Maybe I'm lucky?
Reply
Old Apr 15, 2009 | 11:48 AM
  #6  
DrTurbo's Avatar
LS1TECH Sponsor
iTrader: (3)
 
Joined: Mar 2006
Posts: 3,966
Likes: 2
Default

Originally Posted by bboyferal
Everyone will tell you to go bigger...

Personal experience: In my car, I've gone through a turbo, a motor, and many other things... The Turbosmart 38mm WG that came with my kit has outlasted everything else. It held 6/7 psi from the spring and 8 psi with a Turbosmart MBC (still on the car too!) with NO problems for almost two years. When I had my motor built, I adjusted the MBC, tuned it for 15 psi, and I'm still on the same WG for another two years today.

Maybe I'm lucky?


Turbosmart gates are top notch....we have customers still running them after almost 6-7years of abuse.
Reply
Old Apr 15, 2009 | 01:45 PM
  #7  
Silver_TransAm's Avatar
11 Second Club
iTrader: (2)
 
Joined: Mar 2007
Posts: 608
Likes: 1
From: San Antonio, Tx
Default

I have a 38mm gate and it has been great thus far. 30k+ miles on it.
Reply
Old Apr 15, 2009 | 01:56 PM
  #8  
Super Slow SS's Avatar
Thread Starter
TECH Enthusiast
iTrader: (9)
 
Joined: Oct 2005
Posts: 702
Likes: 0
From: Greenville, Raleigh NC
Default

Originally Posted by Silver_TransAm
I have a 38mm gate and it has been great thus far. 30k+ miles on it.
What brand? and I found a good deal on a Tial 38 I think I am just going to get that.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Apr 15, 2009 | 02:16 PM
  #9  
Silver_TransAm's Avatar
11 Second Club
iTrader: (2)
 
Joined: Mar 2007
Posts: 608
Likes: 1
From: San Antonio, Tx
Default

Its a tial sport. authentic one.
Reply
Old Apr 15, 2009 | 02:17 PM
  #10  
Super Slow SS's Avatar
Thread Starter
TECH Enthusiast
iTrader: (9)
 
Joined: Oct 2005
Posts: 702
Likes: 0
From: Greenville, Raleigh NC
Default

Good to know, I just ordered mine, hope it works out. Guess this thread is over! Thanks to all that helped!

Last edited by Super Slow SS; Apr 15, 2009 at 02:18 PM. Reason: Thanking the peeps.
Reply




All times are GMT -5. The time now is 03:56 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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