Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Ditch Maggie and go H/C?

Thread Tools
 
Search this Thread
 
Old Sep 13, 2011 | 08:11 PM
  #1  
TPIMarow6.6's Avatar
Thread Starter
12 Second Club
iTrader: (8)
 
Joined: Apr 2006
Posts: 205
Likes: 0
From: Plattsburgh NY
Default Ditch Maggie and go H/C?

I currently have an LS2 with older patriot 5.3 heads, Speed Inc SI5 cam 231/237 589/595 and a Maggie 112 with 90mm snout and FAST 90MM TB.

I am wondering if it is worth keeping the maggie on the car or should i go with a bigger set of heads and cam?

Realistically im guessing i should make somewhere around 500-550whp, maybe more and i see guys making around 500whp with a nice set of heads and bigger cam. And see good numbers with l92/l76 setups.

Any info would be appreciated, The engine is in a 71 Vega, 6-speed. I plan on doing alot of drag racing but will be street driving the car as well.
Reply
Old Sep 30, 2011 | 10:45 AM
  #2  
FloydSummerOf68's Avatar
TECH Regular
iTrader: (1)
 
Joined: Mar 2005
Posts: 467
Likes: 0
From: Missouri City
Default

I'm not sure what the goal is here.

I'd sell the maggie for a centrifugal blower and easily eclipse 600rwhp.

A max effort heads/cam LS2 will see 515-525rwhp through a 6 speed.

Last edited by FloydSummerOf68; Sep 30, 2011 at 10:55 AM.
Reply
Old Sep 30, 2011 | 02:17 PM
  #3  
99Bluz28's Avatar
TECH Senior Member
iTrader: (35)
 
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Default

What the lsa on the cam, 114, 115? You want a wider lsa to minimize boost bleed off.
Reply
Old Sep 30, 2011 | 06:26 PM
  #4  
331billet's Avatar
Banned
 
Joined: May 2011
Posts: 18
Likes: 0
Default

A H/C/I car may hit close to the same rwhp that a maggie car does but never the rwtq that a maggie does. At least I have never seen one on 11:1CR.

My 2006 GTO stock LS2 M6 with Kooks 1 7/8" LT's with 3" spintech stainless steel exhaust, chrome Maggie TVS 2300 running 8 1/2 lbs put down 540/550 to the tire.

Why not just change the pulley and add more boost.
Reply
Old Oct 2, 2011 | 09:23 AM
  #5  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default

If you're bracket racing for points and want 500 RWHP, I'd sell the maggie and get a good set of heads. It's easier to be consistent NA than with a maggie.

If you're just into TNT and having fun, I'd leave the car alone or pulley down if you want more power.
Reply
Old Oct 7, 2011 | 05:11 PM
  #6  
-TheBandit-'s Avatar
TECH Addict
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Apr 2010
Posts: 2,816
Likes: 86
From: Instagram @chevyhotrodder
Default

Originally Posted by 331billet
My 2006 GTO stock LS2 M6 with ... chrome Maggie TVS 2300 running 8 1/2 lbs put down 540/550 to the tire.
I'm glad you got the chrome one. There's no way you could have put down those numbers with a plain finish.
Reply
Old Oct 7, 2011 | 06:59 PM
  #7  
COPO9560's Avatar
TECH Enthusiast
 
Joined: May 2008
Posts: 537
Likes: 1
Default

Why not keep the Maggie and add H/C - best of both worlds.
Reply
Old Oct 7, 2011 | 07:09 PM
  #8  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,898
Likes: 255
From: Ft. Wayne, IN
Default

Originally Posted by COPO9560
Why not keep the Maggie and add H/C - best of both worlds.
This!!
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




All times are GMT -5. The time now is 04:04 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 | 2026-06-04 05:00:17


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