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

Little updates...

Thread Tools
 
Search this Thread
 
Old Mar 20, 2010 | 06:37 PM
  #1  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default Little updates...

The motor is at the machine shop, detonation did a good job on the pistons, rings and bearings. lesson learned.... now its getting a half fill (.060 over) custom domed JE pistons, to get me almost to the 14:1 compression range, new Bauer HR cam (should be a screamer up top), and a lonnies double pumper setup to keep up with the motor on E85. Since the motor is down its given me time to finish wiring up my standalone fuel system and the timing retard for my msd 6al-2 box. Still gonna try to make it to the shootout, but this motor work is REALLY cutting into my rollcage budget.
Reply
Old Mar 20, 2010 | 08:56 PM
  #2  
who_needs_maf?'s Avatar
Staging Lane
iTrader: (1)
 
Joined: Nov 2009
Posts: 64
Likes: 0
Default

14:1!
Reply
Old Mar 20, 2010 | 08:58 PM
  #3  
Badazz 97 TA's Avatar
TECH Addict
iTrader: (18)
 
Joined: Aug 2007
Posts: 2,169
Likes: 2
From: Arizona
Default

so you hoping for a solid 13sec 1/4 mile now?
Reply
Old Mar 20, 2010 | 11:18 PM
  #4  
flyinZ's Avatar
TECH Addict
iTrader: (15)
 
Joined: Jun 2002
Posts: 2,642
Likes: 0
From: IL
Default

Sounds good. I've been thinking about that ignition box as well. Whats your opinion of it? I wanted more for the 2-step option
Reply
Old Mar 20, 2010 | 11:27 PM
  #5  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

its cool, other than my newer laptop quit working, and the software isn't compliant with the windows 98 on my old tuning laptop. The two step is pretty nice, no banging or shooting flames that i know of. Not really hoping for 13s, maybe low 11s on motor depending on if I can drive or not, which i don't think i can lmao
Reply
Old Mar 20, 2010 | 11:39 PM
  #6  
BlueRamAir's Avatar
On The Tree
15 Year Member
iTrader: (3)
 
Joined: Sep 2006
Posts: 107
Likes: 1
From: Morris, IL
Default

Sucks about your motor. Hope to see you at the shootout though.
Reply
Old Mar 21, 2010 | 10:34 AM
  #7  
blk6speed's Avatar
Staging Lane
 
Joined: Sep 2006
Posts: 84
Likes: 0
From: Savannah,Ga.
Default

14 to 1,thats awesome.I think a cage will be called for,on the spray may need some laundry...
Reply
Old Mar 21, 2010 | 10:58 AM
  #8  
97Z28SS's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: May 2009
Posts: 1,290
Likes: 3
Default

What caused the detonation that killed your motor, did it just run lean on the e85?
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
Old Mar 21, 2010 | 05:55 PM
  #9  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

Originally Posted by 97Z28SS
What caused the detonation that killed your motor, did it just run lean on the e85?
no i was limping the old 13.5:1 motor on pump gas, with 30 degrees of timing... aparently wasn't limping it enough By the time I converted over to e85 the detonation had already started eating a few pistons, and the rings weren't sealing so well. I run a 4" exhaust, with the cutout open all the time, no real way to hear the detonation. It dyno'd fine on 100 octane, but this crappy oxygenated california 91 octane was a no go. I had the quench PERFECT, the piston was so close to the head you can see a clean outline of the chamber on the pistons, they were probably just barely touching. Oh well, E85 will run great at 14:1 on this motor.
Reply
Old Mar 22, 2010 | 05:02 AM
  #10  
gregrob's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Default

Why would you run a standalone fuel cell w E85?
Reply
Old Mar 23, 2010 | 01:30 AM
  #11  
Wicked94Z's Avatar
Thread Starter
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

tunability with a simple regulator adjustment rather than fiddling with a bunch of jets.
Reply




All times are GMT -5. The time now is 12:55 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