What do you guys use to retard the timing for nitrous? I have tunercat, but have yet to learn to use it. I still have 5deg of knock that is mysteriously only while on the gas or at idle, so I am trying to fix that of course first. I have talked to some people and what I am hearing is to straight pull the timing in the tune instead of using an ignition box setup? Any one have luck w/ an ignition box or the tunercat?

thanks

 

I am using a MSD Digital 6 to retard the timing on my 94....used to pull 2-3* when it was H/C/150shot and I am now pulling 8* on the current 200 shot...no issues as of yet.

 

With pulling it with a tune you will be pulling it all the time and the car wont run as well NA. With a box you will just be retarding when you are on spray. IMO this is the definate way to go. I am running the Mallory 685 ignition box and pulling 5ish i believe

 

Yes, it would be pulling it all the time, if I didn't have my laptop with me. Since I have my laptop I can run to the track on my normal tune, and do nothing to the tune except change the timing (-whatever degrees for 100shot, maybe 2deg?) and then that is my nitrous tune for at the track. This is what I was thinking about... still not sure.

 

Until you get the urge to show the rice whats what on the street and you have the street tune in there

 

Or when you want to make a pass N/A and run slower because your on the nitrous tune.
Ignition box is the way to go, if your bottles full and warm your ALWAYS ready.

 

Thanks guys for all the info, it is looking like the ignition box path will prevail. Very good points. How many degrees again? I have heard 2-3deg for every 50hp pill? So 5deg for 100shot?

 

every car will be different but 1-2 per 50 is the normal starting point....I am pulling 8* for a 200

 

How much can you pull with the Mallory 685? I was under the impression that 4 was the most this box would pull. Is this wrong, I hope so, then I will throw in the 150 jets.

 

mallory 685 here. i love the box its badass.

my dynotuner was aware i would be spraying, after tuning the car in, he pulled 4 degrees and there was no drop in n/a performance, so he told me not to pull any more timing, i still pull 2 degrees with a 125 shot through the mallory and so far its awesome.

 

I can pull up to 15 degrees with my mallory box and if you wire it right it will only pull timing when the nitrous is activated. I love my mallory box.

 

mhmmmm.

 

I'm using the Mallory box as well, another handy feature it comes with is also a window switch. Its a pretty good bang for the buck.

 

i've noticed with the msd boxes there are variations of msd 6a's
what exact version? looking to run a 100 shot

 

dont kno if they make one for a lt car but i use a msd timing twister only takes timing out when spraying.