LT1-LT4 Modifications 1993-97 Gen II Small Block V8

177 blower on 454

Thread Tools
 
Search this Thread
 
Old Jan 6, 2018 | 02:23 PM
  #1  
Rogers16's Avatar
Thread Starter
Registered User
 
Joined: Jan 2018
Posts: 3
Likes: 0
Default 177 blower on 454

have a 454 around 10.5:1 compression, have a 177 weiand blower on hand and was wondering if I ran I high octane if I can run the blower on this engine.
Reply
Old Jan 6, 2018 | 05:24 PM
  #2  
LLLosingit's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Aug 2013
Posts: 3,845
Likes: 487
From: Iowa
Default

Yes you can, Underdrive the blower and be careful with the tune and not run to much timing. You might have to run a mix of 110 race and premium.
Reply
Old Jan 6, 2018 | 05:35 PM
  #3  
Rogers16's Avatar
Thread Starter
Registered User
 
Joined: Jan 2018
Posts: 3
Likes: 0
Default

I have a boost timing master control that i will use. Holley prefers to retard about 1 degree per pound of boost. My ECR at 7 psi would be about 15:1 and to me with no more than 28 degrees full boost on high octane and a richer air fuel mixture seems do able but everything i read says no. If i underdrive the blower to stay in the safe zone of 12:1 ECR thats abot 2 psi and at that point almost not worth it i think
Reply
Old Jan 6, 2018 | 06:13 PM
  #4  
LLLosingit's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Aug 2013
Posts: 3,845
Likes: 487
From: Iowa
Default

What are the internals? Forged pistons? Do you have E-85 available?
Reply
Old Jan 6, 2018 | 09:49 PM
  #5  
Rogers16's Avatar
Thread Starter
Registered User
 
Joined: Jan 2018
Posts: 3
Likes: 0
Default

4 bolt main bored 60 over Forged 10 over steel crank forged 6.135 rods forged kb dome pistons full roller hrdaulic cam amd rockers and not dont have E85 anywhere close but can get 110 octane race fuel original built the engine naturally aspirated but now that i have the blower wanted to see if i could run it with this set up
Reply
Old Jan 6, 2018 | 11:37 PM
  #6  
LLLosingit's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Aug 2013
Posts: 3,845
Likes: 487
From: Iowa
Default

Post this up on Yellowbullet forum in the supercharged section, This is more of a LS based engine forum and not many here are familiar with a roots style supercharger.
My opinion is you should be able to run 5-6lbs with a forged piston as long as you run good fuel and keep the timing in check.
At that low of a boost I don't think you have to worry about ring gap. Even a few pounds of boost will add quite a bit of low end torque.
Reply




All times are GMT -5. The time now is 04:18 AM.

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