Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

Turbo 454...

Thread Tools
 
Search this Thread
 
Old Sep 30, 2005 | 10:10 PM
  #1  
SprayedSDime's Avatar
Thread Starter
Teching In
 
Joined: Sep 2005
Posts: 23
Likes: 0
Default Turbo 454...

I'm looking to build a "mild" turbo 454 to go in my '69 1/2 ton SWB truck. It's getting kind of difficult to figure out what kind of turbo(s) to use though. I'm not sure what would be big enough for a single setup, which I'm leaning towards since I wouldn't have to buy 2 turbos. For a twin setup, though, I believe that two Master Power t61/62 turbos would be sufficient to supply the lb/min needs of that many cubes at around 9-14 psi of boost. The truck is more show/tow than it is go, although I know it will . Just thougt I'd throw this one out there to see if any of the turbo gurus might drop a line in this forum. Otherwise I'd have put it in the F/I forum. Agian, this would be intercooled (air), and have the necessary rotating assembly (duh). Probably have some iron heads and use ~8:1 compression. The main question though is what size turbo(s) would work for this application, single and/or dual?
Reply
Old Oct 4, 2005 | 04:36 PM
  #2  
SprayedSDime's Avatar
Thread Starter
Teching In
 
Joined: Sep 2005
Posts: 23
Likes: 0
Default

No takers for turbo size(s) starting point??
Reply
Old Oct 4, 2005 | 04:59 PM
  #3  
mongse's Avatar
I ruin the end of films...
iTrader: (2)
 
Joined: Nov 2002
Posts: 1,545
Likes: 0
From: Taking back some video tapes
Default

You'll need to be towing a trailer to get it to hook!

Depends on what you want out of it power-wise, a pair of 60s would be a tad small. I've only messed w/ a single turbo race BBF and haven't tackled a turbo BBC...yet.
Reply
Old Oct 4, 2005 | 10:20 PM
  #4  
uberLS-1's Avatar
On The Tree
 
Joined: Sep 2005
Posts: 101
Likes: 0
Default

Personally I would stay dual and on the small side considering you will be towing....if you go single I wouldn't go much further then an 88
On a big block of that size it should be pretty tame and spool fairly low in the rpm with the right exhaust housing. I doubt you will get much more response then that because you really haven't given the real details that matter, what kind of RPM? Stock heads? Power goals? Type of cam? transmission? rear gearing? Pictures of hot naked women? Induction style (Carb or injection)? and so on...
Reply
Old Oct 5, 2005 | 04:44 PM
  #5  
SprayedSDime's Avatar
Thread Starter
Teching In
 
Joined: Sep 2005
Posts: 23
Likes: 0
Default

Sorry for the lack of details, I was more looking for what sizes would feed that many cubes. It'll use a "street" type cam, 232 @ .050 .578 lift and 110* lsa (I refuse to go more!!) It'll have some flat top pistons, netting ~8-8.5:1 compression. RPM air-gap intake, 750 carb (CSU blow thru setup for up to 1000 hp). All aeromotive fuel system... Want it to be just really torquey... Probably 750-ish hp I wouldn't think would be too exotic for a big block. Also intend to keep it under the 6500 rpm area to avoid having to use too much of a valve spring and to keep the off idle response. Heads would likely be AFR "stock replacement" oval ports, I think they're 305 cc intakes or so. No hot naked women, just my MP-t70 single turbo powered S-10 ridin' on the open trailer behind it....
Reply
Old Oct 5, 2005 | 05:55 PM
  #6  
GMC71k20's Avatar
Teching In
 
Joined: Oct 2004
Posts: 46
Likes: 0
Default

coil springs hook fairly well. 67-72 usually only get slowed down on the top end cause of their barn door aerodynamics
Reply
Old Oct 5, 2005 | 10:59 PM
  #7  
SprayedSDime's Avatar
Thread Starter
Teching In
 
Joined: Sep 2005
Posts: 23
Likes: 0
Default

Yea, not worried much about how aerodynamic it is. Got the coil springs and "factory ladder bars" with a 3"/4" drop, so it'll look mean at least. Any racing it does would mostly be 1/8 mile though since that's what they run around here for money (1/4 mile is TNT mostly). I guess two t60s or 66's would be sufficient w/something like a banks intercooler for the Cummins or somethin.

This video of a '75 has convinced me that aerodynamics are for people that don't have power....

http://members.***.net/bstorment/Brian.wmv

Pt96 turbo on 509cid big block chevy.
Reply
Old Oct 6, 2005 | 09:44 AM
  #8  
3rdgentug's Avatar
TECH Resident
iTrader: (23)
 
Joined: Jul 2005
Posts: 806
Likes: 0
From: memphis, tennessee
Default

i still think the word mild and turbo 454 dont belong in the same sentence.....
its an oxymoron
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 Oct 6, 2005 | 09:48 AM
  #9  
SprayedSDime's Avatar
Thread Starter
Teching In
 
Joined: Sep 2005
Posts: 23
Likes: 0
Default

Originally Posted by 3rdgentug
i still think the word mild and turbo 454 dont belong in the same sentence.....
its an oxymoron
Probably true...
Reply
Old Oct 9, 2005 | 09:13 PM
  #10  
blackz93's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: May 2003
Posts: 1,661
Likes: 1
From: nc
Default

Damn, thats was a fast *** truck!
Reply
Old Oct 9, 2005 | 10:03 PM
  #11  
uberLS-1's Avatar
On The Tree
 
Joined: Sep 2005
Posts: 101
Likes: 0
Default

Originally Posted by SprayedSDime
Sorry for the lack of details, I was more looking for what sizes would feed that many cubes. It'll use a "street" type cam, 232 @ .050 .578 lift and 110* lsa (I refuse to go more!!) It'll have some flat top pistons, netting ~8-8.5:1 compression. RPM air-gap intake, 750 carb (CSU blow thru setup for up to 1000 hp). All aeromotive fuel system... Want it to be just really torquey... Probably 750-ish hp I wouldn't think would be too exotic for a big block. Also intend to keep it under the 6500 rpm area to avoid having to use too much of a valve spring and to keep the off idle response. Heads would likely be AFR "stock replacement" oval ports, I think they're 305 cc intakes or so. No hot naked women, just my MP-t70 single turbo powered S-10 ridin' on the open trailer behind it....
seems like you have a pretty good combo going together, but I want to comment on the heads first. Definitely go with the AFR 305's but they are rectangle port, trust me when I say that you wont see the so-called loss in velocity...option for the CNC chamber to increase the low-lift numbers to work better with your cam. They also have an exhaust valve upgrade to pick up the flow numbers even further....after all that is what leads to your end power results. I agree that on the two smaller turbos, the t60's should work VERY well, low end response should have low or ZERO noticable lag. I doubt the 66's would show much benefit anywhere but the upper RPM and might be a little less responsive down low which would pose a pretty big problem when towing. I can understand and want to re-enforce the camshaft choice except for the LSA, get into more of a turbo grind that will be keyed towards low-end response. Good luck, Uber.
Reply




All times are GMT -5. The time now is 04:55 PM.

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