Forced Induction Superchargers | Turbochargers | Intercoolers

Anyone with rear mount TC78 inside please?

Thread Tools
 
Search this Thread
 
Old Feb 18, 2010 | 11:45 PM
  #1  
vipvegas's Avatar
Thread Starter
TECH Enthusiast
iTrader: (13)
 
Joined: Aug 2006
Posts: 591
Likes: 0
From: Pensacola, FL
Default Anyone with rear mount TC78 inside please?

Just trying to compare when your boost is coming on strong. Mine seems to kick in a little later then I expected I guess coming from a 67. I also have an M6 car. Any insight would be appreciated. Think after head swap to 243's Im going to look at a cam other then the EPP. I believe theres room for more power and faster spool times.
Reply
Old Feb 19, 2010 | 12:03 AM
  #2  
mike13's Avatar
10 Second Club
iTrader: (27)
 
Joined: Sep 2008
Posts: 2,229
Likes: 0
From: Lake Tapps, WA
Default

Alot depends on the housing A/R.
Reply
Old Feb 19, 2010 | 04:37 AM
  #3  
OUTLAWZ RACING's Avatar
TECH Addict
iTrader: (9)
 
Joined: Mar 2004
Posts: 2,726
Likes: 1
From: COLUMBUS GA.
Default

Where dose it come in?
Reply
Old Feb 19, 2010 | 09:18 AM
  #4  
vipvegas's Avatar
Thread Starter
TECH Enthusiast
iTrader: (13)
 
Joined: Aug 2006
Posts: 591
Likes: 0
From: Pensacola, FL
Default

With my .96 comes in strong around 4600
Reply
Old Feb 19, 2010 | 10:17 AM
  #5  
mike13's Avatar
10 Second Club
iTrader: (27)
 
Joined: Sep 2008
Posts: 2,229
Likes: 0
From: Lake Tapps, WA
Default

Originally Posted by vipvegas
With my .96 comes in strong around 4600
How about if you short shift to load the motor? Letting the motor pull a taller gear.
Reply
Old Feb 19, 2010 | 11:13 AM
  #6  
HydroStream6's Avatar
TECH Fanatic
20 Year Member
Photogenic
iTrader: (16)
 
Joined: Nov 2004
Posts: 1,273
Likes: 3
From: Rochester, NY
Default

Yea that sounds a bit sluggish... my TC76 with a .81 was strong around 3300... 370ci 9.5:1 comp.
Reply
Old Feb 19, 2010 | 04:03 PM
  #7  
vipvegas's Avatar
Thread Starter
TECH Enthusiast
iTrader: (13)
 
Joined: Aug 2006
Posts: 591
Likes: 0
From: Pensacola, FL
Default

Well took it for a good 15 minute cruise. After about the 10 minute mark it wakes up alot faster. Manifolds are wrapped, I still need to wrap all the way back to turbo that should help also might get blanket. Im seeing 8 psi around 4650 when hot
Reply
Old Feb 19, 2010 | 06:02 PM
  #8  
OUTLAWZ RACING's Avatar
TECH Addict
iTrader: (9)
 
Joined: Mar 2004
Posts: 2,726
Likes: 1
From: COLUMBUS GA.
Default

Yeah the wrap and blanket will help it. Im gonna push my rearmount past 1k hopefully with some changes in the future.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Feb 19, 2010 | 06:13 PM
  #9  
vipvegas's Avatar
Thread Starter
TECH Enthusiast
iTrader: (13)
 
Joined: Aug 2006
Posts: 591
Likes: 0
From: Pensacola, FL
Default

I believe once I swap the stock heads I got on now, wrap all, and turn on the meth and up boost I should obtain 750+ we will see
Reply
Old Feb 20, 2010 | 05:28 AM
  #10  
OUTLAWZ RACING's Avatar
TECH Addict
iTrader: (9)
 
Joined: Mar 2004
Posts: 2,726
Likes: 1
From: COLUMBUS GA.
Default

I dont doubt it car has strong numbers for 8 psi.
Reply
Old Apr 13, 2010 | 02:54 PM
  #11  
omore001's Avatar
Launching!
iTrader: (1)
 
Joined: Sep 2004
Posts: 247
Likes: 0
Default

Originally Posted by vipvegas
Just trying to compare when your boost is coming on strong. Mine seems to kick in a little later then I expected I guess coming from a 67. I also have an M6 car. Any insight would be appreciated. Think after head swap to 243's Im going to look at a cam other then the EPP. I believe theres room for more power and faster spool times.
Hey man, rear mounted TC78 with divided 1.15 a/r here, on a 8.5:1cr 370 iron block, 317 heads with dual springs, and EPP cam, 4 speed auto with 4K stall. Full boost at 2500RPM locked in 4th gear, full boost at 4200RPM with converter unlocked 1st, 2nd, and 3rd. I don't have a quick spool valve, just stock LS1 manifolds will all the hot pipes wrapped. Your HP#'s for 8 lbs are much stronger than mine, but I'm sure I'm losing much more through the drivetrain than you are. The 243's will help you spool a little faster. I'm sure you also know about Zombie's quick spool technique, but you are not using a divided housing on your TC78 like I am. If that quick spool valve makes his rear-mounted SX80 spool like a T67, imagine how fast a quick-spool valve will spool up our much smaller TC78's.
Reply
Old Apr 13, 2010 | 02:57 PM
  #12  
omore001's Avatar
Launching!
iTrader: (1)
 
Joined: Sep 2004
Posts: 247
Likes: 0
Default

Originally Posted by OUTLAWZ RACING
Yeah the wrap and blanket will help it. Im gonna push my rearmount past 1k hopefully with some changes in the future.
I have faith on your set-up and that goal.
Reply




All times are GMT -5. The time now is 06:03 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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