Is a MSD-type ignition box needed/worthwhile? - Team Camaro Tech
Team Camaro Tech join team camaro
 
Camaro Parts at SS396.com     
GROUND UP & SS396.com         
Official Sponsor of Team Camaro
   

Auto Insurance



Registered users (free) do not see these large ads

Engine General Engine Discussion.

Reply
 
Thread Tools Display Modes
  #1  
Old Jan 3rd, 13, 05:34 AM
Brentmc's Avatar
Brentmc Brentmc is offline
Senior Tech

B...t
 
Join Date: Oct 2004
Location: Northeast
Posts: 1,872
Default Is a MSD-type ignition box needed/worthwhile?

I have an MSD-6AL ignition box sitting on my workbench that I did not re-install on my car following the complete rewire I did last spring.

The wiring installer (which is also a performance shop) said that the MSD ignition box was unnecessary for a street car and they did not reinstall it.

They said people with street cars install these boxes to look "racey" but get no real performance nor other significant gain from the install.

My question for the TC braintrust: Are there any significant or even noticable gains to be had by installing a MSD (or other brand) ignition box? MPG? Starting? Idling? or?

My set-up is as follows:
383 w/Holley 750 DP, MSD 8360 Distributor, MSD Blaster 2 Coil, upgraded single-wire alternator, new wiring harness

Thanks.
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old Jan 3rd, 13, 06:00 AM
Chuck Chuck is offline
Senior Tech

Chuck
 
Join Date: Apr 2007
Location: Austin, TX
Posts: 941
Default Re: Is a MSD-type ignition box needed/worthwhile?

One benifit is a rev limiter. Which is a good thing to have if you miss shift at WOT.
Reply With Quote
  #3  
Old Jan 3rd, 13, 06:03 AM
Brentmc's Avatar
Brentmc Brentmc is offline
Senior Tech

B...t
 
Join Date: Oct 2004
Location: Northeast
Posts: 1,872
Default Re: Is a MSD-type ignition box needed/worthwhile?

Quote:
Originally Posted by Chuck View Post
One benifit is a rev limiter. Which is a good thing to have if you miss shift at WOT.

I should've added I have a 700R4--no missed shifts for me...

Any other benefits that anyone can think of?
Reply With Quote
  #4  
Old Jan 3rd, 13, 06:44 AM
Vega$69's Avatar
Vega$69 Vega$69 is offline
Moderator

John
 
Join Date: Sep 2010
Location: Las Vegas
Posts: 2,170
Default Re: Is a MSD-type ignition box needed/worthwhile?

Quote:
Originally Posted by Brentmc View Post
I should've added I have a 700R4--no missed shifts for me...

Any other benefits that anyone can think of?
Every time I buy a car the 1st thing I take off is the MSD box.

Totally unnecessary on a street car.

You can always go to a MSD 8360 Dizzy that has RL built in and does not require a box.
__________________
69 Pro Tour - LS7/T56
69 LS2 Pro Tour (BUILDING)
69 Z28/RS Tribute355/5 Speed (SOLD)
69 RS Clone 427/TH400 (SOLD)
67 RSZZ502/5 Speed (SOLD)
69 Camaro 406 SBC/TH400 (SOLD)
Reply With Quote
  #5  
Old Jan 3rd, 13, 07:18 AM
Brentmc's Avatar
Brentmc Brentmc is offline
Senior Tech

B...t
 
Join Date: Oct 2004
Location: Northeast
Posts: 1,872
Default Re: Is a MSD-type ignition box needed/worthwhile?

Quote:
Originally Posted by Vega$69 View Post
Every time I buy a car the 1st thing I take off is the MSD box.

Totally unnecessary on a street car.

You can always go to a MSD 8360 Dizzy that has RL built in and does not require a box.

Thanks--that is one more vote for no MSD box in a street car..
Reply With Quote
  #6  
Old Jan 3rd, 13, 07:20 AM
prostreet69camaro's Avatar
prostreet69camaro prostreet69camaro is offline
Gold Lifetime Member

Mike
 
Join Date: Jul 2003
Location: Spring Texas
Posts: 5,579
Default Re: Is a MSD-type ignition box needed/worthwhile?

I have always ran a MSD box in my car but I have a blower motor and it has a retard on it when the motor makes boost.

I also rewire cars and usually never install a box. If its a race car then I install a MSD box. I use the ready to run distrubitors on street cars.

The MSD box is another part to fail on a street car. Mine has failed a few times but I have been running one for 20 years. I now keep a spare one in my car just in case.
__________________
Mike
69 Camaro Prostreet - purple w/ghost flames , 502 w/ 871 blower

http://s268.photobucket.com/home/pro...maro/allalbums
Reply With Quote
  #7  
Old Jan 3rd, 13, 07:47 AM
HwyStarJoe's Avatar
HwyStarJoe HwyStarJoe is offline
Moderator

 
Join Date: Jan 2001
Location: New Taxes York
Posts: 17,451
Default Re: Is a MSD-type ignition box needed/worthwhile?

I always thought they were overkill for a cruiser also. But they sher look perty! And I've always heard how they fail a lot. Unlike a plain HEI system which goes and goes and goes....
I sold a 6AL before I even installed it because I didn't need one more thing to worry about and fail on me.
__________________
*---------------------------------*

STREET MACHINES OF ROCHESTER

SEMA ACTION NETWORK

UNITED SERVICES ORGANIZATION (USO)
Reply With Quote
  #8  
Old Jan 3rd, 13, 07:57 AM
Brentmc's Avatar
Brentmc Brentmc is offline
Senior Tech

B...t
 
Join Date: Oct 2004
Location: Northeast
Posts: 1,872
Default Re: Is a MSD-type ignition box needed/worthwhile?

It looks like the MSD box will go up for sale...

I was hoping it would give me some more MPG, a much better idle, or something...

You all are agreeing with the performance shop--no need for MSD on a street car....just another thing to fail....
Reply With Quote
  #9  
Old Jan 3rd, 13, 09:18 AM
Melrose RS Melrose RS is online now
Gold Lifetime Member

Tom
 
Join Date: Mar 2008
Location: right neah Bawstin
Posts: 5,219
Default Re: Is a MSD-type ignition box needed/worthwhile?

A bunch more info in my thread.
http://www.camaros.net/forums/showthread.php?t=184469
__________________
'67 rs - ordered new by my Grandfather
327 L30, K-K, Deluxe int, tach & gauges, 12 bolt posi, 4 speed.
the Melrose rs - L30 327/275hp
Reply With Quote
  #10  
Old Jan 3rd, 13, 05:43 PM
Straight-line-69 Straight-line-69 is offline
Senior Tech

 
Join Date: Dec 2003
Location: Leander, TX
Posts: 2,707
Default Re: Is a MSD-type ignition box needed/worthwhile?

The "ready-to-run" distributors being made today eliminate the need for a 'box' on the street. Plus, many of these distributors (MSD for sure) have a built in rev-limiter that's easy to set up.

As stated above,..the box is just something else that could break down.
Reply With Quote
  #11  
Old Jan 4th, 13, 05:13 AM
zdld17 zdld17 is offline
Gold Lifetime Member

Don
 
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Posts: 9,240
Default Re: Is a MSD-type ignition box needed/worthwhile?

Compare fire to the plugs in plain sight or to a ground during cranking with msd and without, then make your decision. After I added mine on , I could tell considerable differance the the way the car idled. I was running a Comp 268 cam and I thought it idled to rough. After adding the 6AL, the idle really smoothed out.
Instant starts.
However, I did not like the red box sitting on dash, I painted it black. You can also hide these things if it bothers you that much.
__________________
Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E
http://s102.photobucket.com/albums/m...t=115_1577.jpg
Reply With Quote
  #12  
Old Jan 4th, 13, 11:05 AM
Fred Ficarra Fred Ficarra is offline
Gold Lifetime Member

Fred
 
Join Date: Nov 2006
Location: Seabeck WA
Posts: 7,808
Default Re: Is a MSD-type ignition box needed/worthwhile?

I've used them since they were invented when the company was a startup. All but the last one from last season died. Here's my self-directed question(s) that I've asked for 30years; Why? Not why do they fail, but why do I keep using their stuff.
The multiple spark function is suppose to ensure complete combustion. How? Most, if not all first sparks result in cylinder ignition. Once the charge fires, what good are anymore sparks? It seems to tax the capacitor 10X more than needed. Sure, a lean mixture might benefit from a successive spark or two, but if that were the case with our cars we would enrichen the mixture, not drive with an engine that can't get out of its own way.
Next; Race car use. The capacitor fires 10 times for each combustion event. Great, right? But it only can do so up to about 3-3500rpm because there simply isn't enough time. Then it is programmed to fire only once. Do race cars only operate below 3500rpm? That's my staging RPM when I punch it. Why do I buy the stuff? Hell, last year I had my Digital/plus die while idling in the shop.
Here's one for you. When it died and I called tech support and asked for repair turnaround time, I was asked a few trouble shooting questions. I told the guy I installed a noise reduction capacitor in the power feed to quiet stereo noise. He freaked and told me in no uncertain terms to never install or use such a component. It didn't matter to him when he was told it's been there for 35 years.
Guess what? They sell the EXACT same capacitor on their web site for the exact purpose I use one for.
And when the same unit died a few months prior, I called and didn't even let the tech start telling me how to trouble shoot. I just told him what I'd done to diagnose the failure. He didn't say a word except to give me an RMA. I should have done the same this last time.
__________________
One owner 69 Camaro,(yep, bought it new)
RS SS Hugger Orange, L88, 4:10's tru-tack posi, ducted hood, Endura, spoilers.
TH400 (CX) GV with Coan 8" converter, GV-OD, 8 track still on console and best et 10.495, 128.07mph 1.428 60'
All with 1960's stuff. (except tires and converter)
+ MT Super Scavenger headers & 3" full exhaust with X pipe.
1000cfm AED and HD Harold-Lunati SR, 725 lift with shaft rockers too.
http://epitomesrebuild.com/

Last edited by Fred Ficarra; Jan 4th, 13 at 11:18 AM.
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 08:56 AM.



Camaros.net - 2009 AutoForums.com