LS1TECH - Camaro and Firebird Forum Discussion

Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Relay needed for msd box?

Thread Tools
 
Search this Thread
 
Old May 27, 2010 | 04:16 PM
Share
  #1  
Ls1Mx-5's Avatar
Ls1Mx-5
Thread Starter
Launching!
iTrader: (3)
 
Joined: Jul 2009
Posts: 200
Likes: 0
From: New Jersey
Default Relay needed for msd box?
Hi I have a carb'd Ls1 that runs off an msd 6010 box. It runs great when the radiator fans are off, but when the fans are running at wot is hesitates and misfires. Would a 12v 30amp relay solve my problem? Thanks in advance for the help
Reply
0
Old May 27, 2010 | 05:59 PM
Share
  #2  
Z28/2002's Avatar
Z28/2002
11 Second Club
iTrader: (27)
 
Joined: May 2005
Posts: 6,799
Likes: 5
From: Your girl's back door giving her the long stroke while you're at work
Default
Have you checked to see what the volts are at the box?


I've also got a 6010 and don't have any issues when I have both fans on
Reply
0
Old May 27, 2010 | 08:03 PM
Share
  #3  
99345hp's Avatar
99345hp
TECH Fanatic
 
Joined: Jul 2007
Posts: 1,516
Likes: 0
Default
^^ I would check voltage at the box when the fans are on high. That should let you know if you have a huge voltage drop when the fans are on. Maybe you are overloading your alternator and causing a voltage drop through the whole electrical system.
Reply
0
Old May 27, 2010 | 08:48 PM
Share
  #4  
Ls1Mx-5's Avatar
Ls1Mx-5
Thread Starter
Launching!
iTrader: (3)
 
Joined: Jul 2009
Posts: 200
Likes: 0
From: New Jersey
Default
Would a relay remedy this problem?
Reply
0
Old May 27, 2010 | 08:50 PM
Share
  #5  
Ls1Mx-5's Avatar
Ls1Mx-5
Thread Starter
Launching!
iTrader: (3)
 
Joined: Jul 2009
Posts: 200
Likes: 0
From: New Jersey
Default
Originally Posted by Z28/2002
Have you checked to see what the volts are at the box?


I've also got a 6010 and don't have any issues when I have both fans on
Are your fans running on relays? Mine are not
Reply
0
Old May 28, 2010 | 01:16 AM
Share
  #6  
kmracer's Avatar
kmracer
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2006
Posts: 1,444
Likes: 0
From: Washington DC
Default
no, a relay wouldnt help. what alternator are you running? i'd check to see if the alternator is charging the batt, and check voltarge drop from B+ to alternator+, should be no more than .5 volts, but even thats kinda high.
Reply
0
Old May 28, 2010 | 08:37 AM
Share
  #7  
Ls1Mx-5's Avatar
Ls1Mx-5
Thread Starter
Launching!
iTrader: (3)
 
Joined: Jul 2009
Posts: 200
Likes: 0
From: New Jersey
Default
Originally Posted by kmracer
no, a relay wouldnt help. what alternator are you running? i'd check to see if the alternator is charging the batt, and check voltarge drop from B+ to alternator+, should be no more than .5 volts, but even thats kinda high.
Isn't a relays job to supply consistent voltage to what it's powering? I'm running a stock alternator from a 98' TransAm/Camaro, but the swap is in a Miata. When the car is running, the battery sees around 14.4 volts so I know I have the alt wiring hooked up properly. However, I haven't checked how it looks with the fans running. Thanks for the help guys
Reply
0

Trending Topics

Old May 28, 2010 | 12:38 PM
Share
  #8  
S10xGN's Avatar
S10xGN
TECH Junkie
iTrader: (11)
 
Joined: Jul 2005
Posts: 3,782
Likes: 7
From: Port Neches, TX
Default
Originally Posted by Ls1Mx-5
Isn't a relays job to supply consistent voltage to what it's powering? I'm running a stock alternator from a 98' TransAm/Camaro, but the swap is in a Miata. When the car is running, the battery sees around 14.4 volts so I know I have the alt wiring hooked up properly. However, I haven't checked how it looks with the fans running. Thanks for the help guys
Ahhh, no. A relay is used to supply high current (amps) through properly sized wiring using a light gauge signal wire, so that said current doesn't have to travel through that light gauge signal wire. In a world without relays, all of our body wiring would need to be 6, 8, or 10 gauge...
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

 Michael S. Palmer
story-1

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-2

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

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Pouria Savadkouei
story-7

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

 Verdad Gallardo
story-8

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-9

Top 10 Most Powerful Chevy Trucks Ever Made!

 
Old May 28, 2010 | 10:16 PM
Share
  #9  
Z28/2002's Avatar
Z28/2002
11 Second Club
iTrader: (27)
 
Joined: May 2005
Posts: 6,799
Likes: 5
From: Your girl's back door giving her the long stroke while you're at work
Default
Originally Posted by Ls1Mx-5
Are your fans running on relays? Mine are not
No they are not
Reply
0
Tags
Back to Subforum
Generation III External Engine
View Next Unread
So my Y pipe is banging...guess I do need them motor mounts after all




Advanced Search

All times are GMT -5. The time now is 09:50 AM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
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-2
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 | 2026-06-18 10:26:23


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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