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

Underperforming le2's?

Thread Tools
 
Search this Thread
 
Old Nov 8, 2013 | 12:19 PM
  #1  
sweetbmxrider's Avatar
Thread Starter
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default Underperforming le2's?

Is this normal times for le2s with a big 385 lt1 thumper cam on racecar 11.1:1 scr running citgo 93 racegas?

I'm the ***** car...







I don't get why the mph and time change so much? Is it from the better reaction timing?

Reply
Old Nov 8, 2013 | 12:24 PM
  #2  
bufmatmuslepants's Avatar
12 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Mar 2007
Posts: 3,280
Likes: 49
From: Hampstead, NC
Default

You 60-330 shows you spun on the first run, second run shows you hooked but must have let off since your 1/8th mph was higher yet 1/4 was lower. Reaction has nothing to do with ET. You dynoed 385 IIRC, which is a bit low compared to some of the higher (12.5ish) compression AI 200 cars. I definately think the compression is holding you back.
Reply
Old Nov 8, 2013 | 12:25 PM
  #3  
H8R's Avatar
H8R
Staging Lane
 
Joined: Oct 2011
Posts: 50
Likes: 0
Default

The 60ft time . You spun or bogged or something on the first run.
look at the 1/8th mile, you were almost a full second faster on the second run.
The car is rolling out pretty good.
Reply
Old Nov 8, 2013 | 12:28 PM
  #4  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

You should ditch those crappy stock castings and put on the LT4 top end kit, I think that should help.
Reply
Old Nov 8, 2013 | 01:03 PM
  #5  
93M6Formula's Avatar
TECH Fanatic
 
Joined: Aug 2008
Posts: 1,740
Likes: 2
From: Nebraska
Default

Originally Posted by Shownomercy
You should ditch those crappy stock castings and put on the LT4 top end kit, I think that should help.
I remember when I read Summit catalogs from 1995.
Reply
Old Nov 8, 2013 | 01:12 PM
  #6  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Originally Posted by 93M6Formula
I remember when I read Summit catalogs from 1995.
Are you saying they are bad? The "Hotcam" is a solid performer and it should easily do +425rwhp
Reply
Old Nov 8, 2013 | 01:53 PM
  #7  
kgkern01's Avatar
TECH Resident
20 Year Member
Photogenic
iTrader: (10)
 
Joined: Dec 2003
Posts: 996
Likes: 11
Default

Originally Posted by Shownomercy
Are you saying they are bad? The "Hotcam" is a solid performer and it should easily do +425fwhp
Fixed.
Reply
Old Nov 8, 2013 | 02:58 PM
  #8  
Ed Wright's Avatar
9-Second Club
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,397
Likes: 9
From: Tulsa, OK
Default

That car is very slow, but how can you say it is the heads?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Nov 8, 2013 | 03:33 PM
  #9  
Puck's Avatar
TECH Veteran
iTrader: (17)
 
Joined: Oct 2006
Posts: 4,152
Likes: 6
Default

He's trolling lol.

11.09 @ 115 .
Reply
Old Nov 8, 2013 | 04:11 PM
  #10  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Originally Posted by Ed Wright
That car is very slow, but how can you say it is the heads?
Cause aftermarket edelbrock stuff would be much better with like a GM847 for a pure "race" car.

Originally Posted by Puck
He's trolling lol.

11.09 @ 115 .
It is pretty slow for the mods it has, maybe the race weight is too little?
Reply
Old Nov 8, 2013 | 10:36 PM
  #11  
stevo9389's Avatar
TECH Enthusiast
 
Joined: Mar 2009
Posts: 680
Likes: 7
From: Clearwater
Default

LOL @ Citgo 93 race gas
Reply
Old Nov 9, 2013 | 12:09 AM
  #12  
stngh8r's Avatar
On The Tree
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2003
Posts: 173
Likes: 1
From: Idabel, OK
Default

11.0 and 121 doesn't sound bad to me?
Reply
Old Nov 11, 2013 | 10:51 AM
  #13  
sweetbmxrider's Avatar
Thread Starter
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default

Originally Posted by Ed Wright
That car is very slow, but how can you say it is the heads?
I know, they didn't come from advanced induction
Reply
Old Nov 11, 2013 | 11:47 AM
  #14  
Ed Wright's Avatar
9-Second Club
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,397
Likes: 9
From: Tulsa, OK
Default

I've made some pretty good power with Lloyd's heads.
Reply
Old Nov 11, 2013 | 12:08 PM
  #15  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Originally Posted by sweetbmxrider
I know, they didn't come from advanced induction
Telling you, sell those lame nuggets and get yourself the LT4 topend kit, Summit says its guarenteed 440hp.

Then you will run like low 10s I think if you get a naws shot on it.
Reply
Old Nov 11, 2013 | 08:53 PM
  #16  
HellTeeOne's Avatar
TECH Regular
 
Joined: Sep 2003
Posts: 442
Likes: 3
From: Raleigh, NC
Default

Did you slam on brakes before the 1/4 traps on the second pass?
Reply
Old Nov 11, 2013 | 09:12 PM
  #17  
Ed Wright's Avatar
9-Second Club
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,397
Likes: 9
From: Tulsa, OK
Default

Originally Posted by Shownomercy
Telling you, sell those lame nuggets and get yourself the LT4 topend kit, Summit says its guarenteed 440hp.

Then you will run like low 10s I think if you get a naws shot on it.
Can't see a guarantee like that when you don't know how sharp the engine builder and tuner might be. Just because they will SUPPORT that much power certainly does not mean a given engine will make that much. More to it than having a local machine shop machine everything and bolting one together.
Reply
Old Nov 12, 2013 | 07:38 AM
  #18  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,195
Likes: 129
Default

Originally Posted by Ed Wright
Can't see a guarantee like that when you don't know how sharp the engine builder and tuner might be. Just because they will SUPPORT that much power certainly does not mean a given engine will make that much. More to it than having a local machine shop machine everything and bolting one together.
probably would need an expert to adjust the valve train right?
Reply
Old Nov 12, 2013 | 10:30 AM
  #19  
sweetbmxrider's Avatar
Thread Starter
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default

First pass I had 21 psi in the rears and spun, probably were a little cold too. Started hooking at 19 psi and a little more heat. That second slip I left the car in overdrive like a newb, heard it shift, and got out of it







The air was really good. I can't decide if I want to max this setup out or what....guess I have all winter to pile up boxes It was fun driving to the track, swapping wheels, running 10s, and driving home. Weight was like 3370 with me and around 3/4 tank. I thought it was pretty cool for little ole hand ported le2's.
Reply
Old Nov 12, 2013 | 12:26 PM
  #20  
HellTeeOne's Avatar
TECH Regular
 
Joined: Sep 2003
Posts: 442
Likes: 3
From: Raleigh, NC
Default

Looks like you have a great running setup, congrats.

SR or HR camshaft?
Reply



All times are GMT -5. The time now is 01:32 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE