This thread will be tech and for people to share information and idea for using nitrous in drag racing.
First do not take this a bragging because my piston melting ability speak for itself, but its is to set my credentials in nitrous burning ability.
Ten years ago I started working with Nitrous Express to use nitrous on the Dr Performance truck until I got fired. I was trying to make it spool quick enough to hit a .500 Pro Tree in NHRA Super Street.
My efforts were to make a boost reference controller. I laid out a flow chart of what I wanted it to do. NX had an electronics company build to that spec. I worked with the prototype on both the DP truck and on Project X .
I believe that the sooner you get nitrous flowing the better. I start my spool ramps at 1 lbs of boost usually at 10% total flow. and bring it to 100 % as soon as it will take it and burn up. You have to work on the ramps. Here is a simple ramp for a spool up stage.
notice this stage comes on when the second input is activated IE brake pedal.
you still must have throttle input as well. I set the throttle to about 10 to 15 % of total throttle this allows it to work when you are staging.
For many years the tech calls were forwarded to me from NX , I still get a lot of people calling for advice on using this system.
I put the nitrous on engines with intercoolers in the intercooler tank . I usually connect the solenoid directly to the tank
There are to options to which side of the intercooler . On the hot side is more forgiving on not getting to much on before the engine is up enough to not have a cool out . Nitrous in diesels does not lean pop like gas motors , rather the template of the intake air gets so cold that the diesel ignition does not happen.
Putting the nitrous on the hot side of the intercooler give you zero cooling effect . I have done lots of dyno texting and data logged the temp at the turbo and at the port
on Project X I used a Banks Technocooler , and it was a very efficient intercooler, actually the best I have seen of the stock style intercoolers. With Project X at the Texas mile, I tried it on both side of the cooler and logged it .
with the nitrous on the Hot side the turbo out was around 300 degrees . Poor truck only had a SB66 on it. Ill try to find those logges but that been a long time , here were the results
Texas mile diesel Powers Project X diesel
Speed----------Nitrous----Turbo out---Port temp---out side air
151 mph--------none------300---------105----------85
161 mph-------.125--------300--------105----------85 nitrous hot side IC
165 mph ------.125--------300----------75----------85 nitrous cold side IC
Nitrous does not need an over rich fueling to make power . The more nitrous you put in, the more power it make. Reason , it speeds up flame propagation speed in the combustion chamber and brings up efficiency.
I will put on ignore anyone that wants to make this tread a bash thread
First do not take this a bragging because my piston melting ability speak for itself, but its is to set my credentials in nitrous burning ability.
Ten years ago I started working with Nitrous Express to use nitrous on the Dr Performance truck until I got fired. I was trying to make it spool quick enough to hit a .500 Pro Tree in NHRA Super Street.
My efforts were to make a boost reference controller. I laid out a flow chart of what I wanted it to do. NX had an electronics company build to that spec. I worked with the prototype on both the DP truck and on Project X .
I believe that the sooner you get nitrous flowing the better. I start my spool ramps at 1 lbs of boost usually at 10% total flow. and bring it to 100 % as soon as it will take it and burn up. You have to work on the ramps. Here is a simple ramp for a spool up stage.
notice this stage comes on when the second input is activated IE brake pedal.
you still must have throttle input as well. I set the throttle to about 10 to 15 % of total throttle this allows it to work when you are staging.
For many years the tech calls were forwarded to me from NX , I still get a lot of people calling for advice on using this system.
I put the nitrous on engines with intercoolers in the intercooler tank . I usually connect the solenoid directly to the tank
There are to options to which side of the intercooler . On the hot side is more forgiving on not getting to much on before the engine is up enough to not have a cool out . Nitrous in diesels does not lean pop like gas motors , rather the template of the intake air gets so cold that the diesel ignition does not happen.
Putting the nitrous on the hot side of the intercooler give you zero cooling effect . I have done lots of dyno texting and data logged the temp at the turbo and at the port
on Project X I used a Banks Technocooler , and it was a very efficient intercooler, actually the best I have seen of the stock style intercoolers. With Project X at the Texas mile, I tried it on both side of the cooler and logged it .
with the nitrous on the Hot side the turbo out was around 300 degrees . Poor truck only had a SB66 on it. Ill try to find those logges but that been a long time , here were the results
Texas mile diesel Powers Project X diesel
Speed----------Nitrous----Turbo out---Port temp---out side air
151 mph--------none------300---------105----------85
161 mph-------.125--------300--------105----------85 nitrous hot side IC
165 mph ------.125--------300----------75----------85 nitrous cold side IC
Nitrous does not need an over rich fueling to make power . The more nitrous you put in, the more power it make. Reason , it speeds up flame propagation speed in the combustion chamber and brings up efficiency.
I will put on ignore anyone that wants to make this tread a bash thread
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