Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

couple of problems/questions...

Thread Tools
 
Search this Thread
 
Old Oct 21, 2008 | 08:30 AM
  #21  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

a couple of people have told me that when the gauge heats up, it does not read right...
and i think that is my problem with the pressure...how can i double check that?

also i didnt have much gas in the tank, maybe less that a gallon..
Reply
Old Oct 21, 2008 | 08:45 AM
  #22  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

oh and on the msd timing unit, what chip# should i use?
Reply
Old Oct 21, 2008 | 08:53 AM
  #23  
SMAX's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2004
Posts: 453
Likes: 0
From: TULSA
Default

You really should have a pressure gauge mounted in a place where you can see it while driving.

If you are sure that you aren't having fuel pressure problems then try this.
Take the car out and do a wot run killing the engine at wot and putting the car in neutral to coast to a stop(obviously do this in a safe location. Now check the plugs. If it is just an issue of needing to jet up the secondaries your plugs are going to be very white. Now just go to a speed shop and get a jet kit for your carb.
Reply
Old Oct 21, 2008 | 08:59 AM
  #24  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

thanks will try that...do you have to do that with brand new plugs? or can i do that with the plugs i have already?
Reply
Old Oct 21, 2008 | 09:09 AM
  #25  
Ravenous T\A's Avatar
TECH Junkie
iTrader: (12)
 
Joined: May 2002
Posts: 3,420
Likes: 0
From: Burleson/Ftw,Texas
Default

gotta love Holley's........my Edelbrock carb was bolt and play with #2 chip with my huge cam
Reply
Old Oct 21, 2008 | 09:11 AM
  #26  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

i have a mild cam too...and alot of people suggested the carb that i have, because how great it was...i guess it just needs some one that knows how to tune it...becuase i sure as hell don't lol
Reply
Old Oct 21, 2008 | 09:12 AM
  #27  
SMAX's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2004
Posts: 453
Likes: 0
From: TULSA
Default

Just have a few sets of plugs with you, or you can have a few extras and then check a center cylinder like 2,3,4,5 and then replace it after every run. Now you can use that plug as reference for the new jetting. Make a wot run, shut down, check plugs, change jets and repeat until it is where you want it. You want the plugs to look almost the same color as a paper bag. Make sure you jet up slowly, and when it is jetted change all the plugs and you are done.

Oh yeah, bring some mechanics gloves too because those plugs and headers are gonna be hot especially in a lean condition.
Reply
Old Oct 21, 2008 | 09:15 AM
  #28  
Ravenous T\A's Avatar
TECH Junkie
iTrader: (12)
 
Joined: May 2002
Posts: 3,420
Likes: 0
From: Burleson/Ftw,Texas
Default

yea Holley's require alot of tuning, they are great race carbs but U have to babysit them way to much. Carter/Edelbrock AFB style carbs are less touchy.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Oct 21, 2008 | 09:18 AM
  #29  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

i think becuase i really don't know much about carbs and how they work, ill pay a pro to do it and watch and ask questions and learn...

i would hate to mess up something i have spent so much money on....i'm only 20 and got about 14k into motor, trans, and rear end
Reply
Old Oct 21, 2008 | 09:20 AM
  #30  
Ravenous T\A's Avatar
TECH Junkie
iTrader: (12)
 
Joined: May 2002
Posts: 3,420
Likes: 0
From: Burleson/Ftw,Texas
Default

yea thats your best bet, sometimes us shadtree mechanics can do more harm then good I can put together a motor and wire it but when it comes to tuning it I leave that up to an expert
Reply
Old Oct 21, 2008 | 09:20 AM
  #31  
SMAX's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2004
Posts: 453
Likes: 0
From: TULSA
Default

Originally Posted by Ravenous T\A
yea Holley's require alot of tuning, they are great race carbs but U have to babysit them way to much. Carter/Edelbrock AFB style carbs are less touchy.
I don't think you have to baby sit a holley once you have it tuned. It is just more adjustments to really get one tuned.

I would rather have a vacuum secondary holley than an edelbrock though. It always seems like the edelbrocks don't respond to tuning. It never mattered what metering rod or spring I put in them they ran the same and the plugs always looked the same.
Reply
Old Oct 21, 2008 | 09:24 AM
  #32  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

what chip do you guys think i should be using, one guy told me to go with 6 becuase the more timing the better?

or should i leave that to the "expert tuner"?
Reply
Old Oct 21, 2008 | 09:26 AM
  #33  
Ravenous T\A's Avatar
TECH Junkie
iTrader: (12)
 
Joined: May 2002
Posts: 3,420
Likes: 0
From: Burleson/Ftw,Texas
Default

weird, never had a problem in the past with edel's, my Holley's always needed something like power valve, weather change tune for minor drop in temps (im in TX), to much work for a street driver IMHO. Had a Holley 750 DP on my 66 Chevelle 454, and a 750 Demon on my 70 GTX 440, they were more trouble to me, my 70 340 Dart & 66 Fury VIP 318 my dad's 78 Chevy'd 350 Formula all had a Carter AFB's or Edelbrocks and never and any issues with them. If u like to play with your carb alot to me get a Holley, if u wanna run and gun but are not to concerened with squeezing that last ounce of power out, get a Edel.

Last edited by Ravenous T\A; Oct 21, 2008 at 09:32 AM.
Reply
Old Oct 21, 2008 | 09:29 AM
  #34  
SMAX's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2004
Posts: 453
Likes: 0
From: TULSA
Default

Really you should be using a computer to fine tune it.

More is not always better with timing. I would just go with the #2 or #3.
Reply
Old Oct 21, 2008 | 09:32 AM
  #35  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

i have two on it now...seems fine..but hey what do i know? lol

one more question (sorry for all the questions, just trying to learn as much as possible)
how do i know if a coil needs changing?


Thanks SMAX & Ravenous T\A ...for all your info, i really appreciate it alot!
Reply
Old Oct 21, 2008 | 09:32 AM
  #36  
lq4cutlass's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 38
Likes: 0
Default

a computer? how so? is there a cable/program i need or something?
Reply
Old Oct 21, 2008 | 09:32 AM
  #37  
SMAX's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2004
Posts: 453
Likes: 0
From: TULSA
Default

Originally Posted by Ravenous T\A
weird, never had a problem in the past with edel's, my Holley's always needed something like power valve, weather change tune for minor drop in temps (im in TX), to much work for a street driver IMHO. Had a Holley 750 DP on my 66 Chevelle 454, and a 750 Demon on my 70 GTX 440, they were more trouble to me, my 70 340 Dart had a Carter AFB and never and any issues with it. If u like to play with your carb alot to me get a Holley, if u wanna run and gun but are not to concerened with squeezing that last ounce of power out, get a Edel.
I see your point. Honestly if you really want a trouble free reliable carb a quadrajet is a great carb.
Reply
Old Oct 21, 2008 | 09:34 AM
  #38  
Ravenous T\A's Avatar
TECH Junkie
iTrader: (12)
 
Joined: May 2002
Posts: 3,420
Likes: 0
From: Burleson/Ftw,Texas
Default

the edelbrock box that came with your manifold has a plug in for tuning with a little CD that came with the set-up (unless u dont have the Victor Jr' style one)
Reply
Old Oct 21, 2008 | 09:35 AM
  #39  
SMAX's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2004
Posts: 453
Likes: 0
From: TULSA
Default

Originally Posted by lq4cutlass
a computer? how so? is there a cable/program i need or something?
You need a laptop, serial data cable and the free programing software from msd call msd pro data+. It is a very easy program to use once you get it set up. Vista can be a pain with it though.
Reply
Old Oct 21, 2008 | 09:39 AM
  #40  
Ravenous T\A's Avatar
TECH Junkie
iTrader: (12)
 
Joined: May 2002
Posts: 3,420
Likes: 0
From: Burleson/Ftw,Texas
Default

look like this one on the bottom left of the picture
Reply



All times are GMT -5. The time now is 06:24 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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