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

HP Estimate

Thread Tools
 
Search this Thread
 
Old Mar 12, 2006 | 10:25 PM
  #1  
zlover129's Avatar
Thread Starter
TECH Fanatic
iTrader: (10)
 
Joined: May 2005
Posts: 1,197
Likes: 0
From: Charlotte, NC
Default HP Estimate

Well yes I am kind of a newb when it comes to estimating power and 1/4 time, and i was wondering if you guys wouldnt mind helping me out. My plans are Jet Hot Race LT's and ORY, GMMG Cat Back, GM846 cam or a little bigger, ceramic intake port matched, 30lb injectors, MSD ignition coil, 1.6 RR's, 4.10's, Stock Heads, and Stock everything else. What times do you think I am going to run and what kind of power should i expect to make? Thanks
Reply
Old Mar 13, 2006 | 07:28 AM
  #2  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

Don't bother grinding on the intake much unless you grind on the heads too, you seriously risk putting a shelf in the port where they meet which will hurt flow rather than improve it. Intake upgrades are so popular and productive on the gen1 and gen 3 motors that everyone gets a little too caught up in doing them on the LT1 too. It works much better than given credit for. Not saying it is perfect it isn't just wait till you play with the heads.
Reply
Old Mar 13, 2006 | 06:38 PM
  #3  
zlover129's Avatar
Thread Starter
TECH Fanatic
iTrader: (10)
 
Joined: May 2005
Posts: 1,197
Likes: 0
From: Charlotte, NC
Default

O, I understand perfectly the LT1 intake and the pros and cons, really no upgrade other then some sheet metal intake that I've heard a little about, I'll be careful, might not even do it, but i have some other intakes laying around just in case, but any estimates?
Reply
Old Mar 13, 2006 | 07:01 PM
  #4  
Fatal LT1's Avatar
Teching In
iTrader: (1)
 
Joined: Nov 2005
Posts: 41
Likes: 0
From: DFW, Texas
Default

6spd or auto? if 6spd i would stay away from sticky tires w/ those gears if you want the rear to live very much longer.
Reply
Old Mar 13, 2006 | 07:05 PM
  #5  
zlover129's Avatar
Thread Starter
TECH Fanatic
iTrader: (10)
 
Joined: May 2005
Posts: 1,197
Likes: 0
From: Charlotte, NC
Default

yea, its a 6 spd, and I have no intention of buying radials or anything like that, I'm not looking for the fastest drag car so I'm not going to fret over .2 here and .1 there, and yes I want my 10 bolt to live so I dont plan to launch, even if I'm at the strip.
Reply
Old Mar 14, 2006 | 01:14 AM
  #6  
DeltaT's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2005
Posts: 2,404
Likes: 1
Default

I have a brand new set of Holley (Delphi, MSD) 30lb injectors that I'll sell for $250 plus UPS Ground shipping. I ended up going with a blower and upgrading to Holley 50 pounders before I even put in the 30's.

PM if interested.



Jim
Reply
Old Mar 14, 2006 | 04:56 AM
  #7  
zlover129's Avatar
Thread Starter
TECH Fanatic
iTrader: (10)
 
Joined: May 2005
Posts: 1,197
Likes: 0
From: Charlotte, NC
Default

No thanks, I already have those bought, but thanks again. So no one has even an estimate?
Reply
Old Mar 14, 2006 | 03:50 PM
  #8  
DeltaT's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2005
Posts: 2,404
Likes: 1
Default

Power estimate with 846 cam and unported LT1 heads: 375HP at the crank.
Time estimate: 12.6 @ 104mph.

Jim
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 03:45 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