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

Nitrous Timing Retard using MSD Optispark Distributor?

Thread Tools
 
Search this Thread
 
Old Feb 9, 2011 | 12:49 PM
  #1  
Rumblin70ss's Avatar
Thread Starter
On The Tree
 
Joined: Sep 2008
Posts: 126
Likes: 0
From: Newark, DE
Default Nitrous Timing Retard using MSD Optispark Distributor?

Hey guys,

Just wanted some input on this.......

Looking for a way to retard the timing when I add nitrous to my car in the next few weeks. I was originally looking at adding an MSD or Mallory ignition box to do it, but could I just use the MSD Optispark's adjustable timing to perform the same function? Max NOS would be a 150 shot.

I already have the distributor so it wouldn't cost me anything to do it. The car is out of state having a motor put in and NOS installed. If I could save the extra expense of the ignition box and install, it would probabaly save $500.00.

I can always put it in myself at a later date when it comes home.

Thanks for any input.
Reply
Old Feb 9, 2011 | 01:09 PM
  #2  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

The timing adjuster is not a reliable piece though and you would need to fab a pointer and degree the damper which would pretty much also mandate a keyed hub. To do that well you will spend what you would on a Mallory box.

Just do the Mallory box and then you have the window switch and spark based rev limiters which are huge engine safeties.
Reply
Old Feb 9, 2011 | 01:30 PM
  #3  
THADD's Avatar
8 Second Club
iTrader: (12)
 
Joined: Nov 2010
Posts: 747
Likes: 0
From: Durham
Default

Originally Posted by 96capricemgr
The timing adjuster is not a reliable piece though and you would need to fab a pointer and degree the damper which would pretty much also mandate a keyed hub. To do that well you will spend what you would on a Mallory box.

Just do the Mallory box and then you have the window switch and spark based rev limiters which are huge engine safeties.
Agreed!!! I am using the Mallory($290) and it is worth every penny.
Reply
Old Feb 9, 2011 | 04:02 PM
  #4  
fex77k's Avatar
8 Second Club
15 Year Member
iTrader: (2)
 
Joined: Sep 2006
Posts: 1,668
Likes: 2
From: AR
Default

Originally Posted by 96capricemgr
The timing adjuster is not a reliable piece though and you would need to fab a pointer and degree the damper which would pretty much also mandate a keyed hub. To do that well you will spend what you would on a Mallory box.

Just do the Mallory box and then you have the window switch and spark based rev limiters which are huge engine safeties.
Agreed adjusting the MSD Opti is a pain in the ***.

I run a Dig 6 box that has 2 rpm limits(stage and max) and a NX retard.
Reply
Old Feb 10, 2011 | 07:58 AM
  #5  
Rumblin70ss's Avatar
Thread Starter
On The Tree
 
Joined: Sep 2008
Posts: 126
Likes: 0
From: Newark, DE
Default

Thanks for the input guys, looks like I will be buying an ignition box after all.
Reply
Old Feb 10, 2011 | 08:03 AM
  #6  
pancho toco loco's Avatar
TECH Resident
iTrader: (8)
 
Joined: Apr 2010
Posts: 902
Likes: 0
From: NJ
Default

When you guys run the Mallory box do you have a NA tune and use the box to retard or are you running a No2 tune?
Reply
Old Feb 13, 2011 | 01:29 PM
  #7  
Rumblin70ss's Avatar
Thread Starter
On The Tree
 
Joined: Sep 2008
Posts: 126
Likes: 0
From: Newark, DE
Default

Originally Posted by pancho toco loco
When you guys run the Mallory box do you have a NA tune and use the box to retard or are you running a No2 tune?
From my research, it looks like I will use a N/A tune and use the box to retard the timing for the N2O.
Reply




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