Hello,

I've been trying to do as much research on the useage of nitrous oxide. I've only heard a little bit about the negative effects on the use of Nitrous in an automatic transmission because of the torque converter.

I understand with auto transmission WOT and TPS window switches are needed. But, if the risk of using nitrous is far too great I'm probably going end up backing out. I'm planning on running just a 75 shot.

I'm also curious the timing? On the dynotune website, it says at 75 shots the timing would not need to be retarded. But on the sticky it states I should retard the timing one for every 50 shots. Can anyone confirm this?

I tried searching information about the negative effects on the torque converter, but I came up with nothing.

Thanks for the help, sorry if this is something I could have searched, but I tried. The sooner I can get a little bit more information the sooner I can get myself to click the submit order button.

 

As for the torque converter, youll be fine... idk where u heard that... wot switches are normally used in most applications regardless.. as for the timing, you can safely run a 75 shot w/o pulling timing however, if u want to go 100shot or higher than u should look into an engine management to pull timing...

 

i ran nitrous on my stock TC for 5 years without any problems. i've gone as high as a 150 shot but stuck mainly to the 100 to 125 range.

im not going to say there are no negative side effects, but as long as you keep it safe you shouldnt have any problems.

90% of the problems people have with nitrous are usually because they wanted to save a few bucks and skimp on the safety components.

NX is the way to go imo. all you'll need is some 2step colder plugs and you're good to go. no need to worry about any timing etc as long as you stick with 100 shot or less. i wouldnt go less though. a 100 shot is the minimum. anything less is a waste of money.

having said that, there is nothing more intense and addicting then when a 150 shot kicks in and the car just hauls. lots of fun.

 

You say 2-step colder plugs, why? I mostly see people only 1-step colder plugs

 

2-step colder plugs are usually recommended when going higher than 75shot (in my opinion). When my car was nitrous, as well as nitrous+turbocharged, I always used 2step colder plugs, and till this day in 5 years or more I have not melted a plug or even come close to damaging a plug.

There wont be any issues with the torque converter at all. NGK Copper "LFR7A-11" if they have them.

 

The problem doesnt come from the torque converter. Problems can occur when spraying say a 100-150 shot while the car is shifting. Most people have WOT switches and they let off the gas to change gears in a manual transmission. In an auto u hold the gas pedal down the whole time, causing nitrous to spray thru the shift of the gears. During a shift, the ECU retard timing in order to reduce engine output to put less stress on the clutches inside the transmission. Spraying the nitrous thru the gear will cause an increase in engine power that the clutches might can't handle causing the cluthes to get worn.

The fix: get a transgo shift kit, or TCU (transmission control unit) reprogram to make the gears shift faster.

 

You can simply use a rpm switch so it cuts nitrous right before the shift. Shifts are actually quicker than spraying during shift since less slip.