WI/AI Location and Control
WI/AI Location and Control
Has anyone tried using a more 'direct' port injection scheme using multiple nozzles on a FD? I've been searching but haven't found anything so far.
I'm considering tapping either the two secondaries or possibly all 4 of the runners in the extension manifold where they make the 90 degree turn downward to the intake manifold and then using a dual PWM S-HSV setup, one for each rotor.
I'll have a front and rear EGT signal and the ability to generate 2 separate scaleable 5v signals in relation to individual rotor EGT. So each rotor would receive injection based-upon 3D mapped to probably RPM vs. MAP vs. EGT.
Doing this wouldn't be cheap, because it would essentially be two systems, but it would account-for flow and operating differences between the two rotors by independently biasing the injection volume in order to stay below a desired max EGT.
From what I understand there are some significant temp and flow differences across the rpm range between the front and rear and it seems like a fast responding port WI/AI system could help control some of those differences. Overkill?
I'm considering tapping either the two secondaries or possibly all 4 of the runners in the extension manifold where they make the 90 degree turn downward to the intake manifold and then using a dual PWM S-HSV setup, one for each rotor.
I'll have a front and rear EGT signal and the ability to generate 2 separate scaleable 5v signals in relation to individual rotor EGT. So each rotor would receive injection based-upon 3D mapped to probably RPM vs. MAP vs. EGT.
Doing this wouldn't be cheap, because it would essentially be two systems, but it would account-for flow and operating differences between the two rotors by independently biasing the injection volume in order to stay below a desired max EGT.
From what I understand there are some significant temp and flow differences across the rpm range between the front and rear and it seems like a fast responding port WI/AI system could help control some of those differences. Overkill?
Banned. I got OWNED!!!
Joined: Jan 2005
Posts: 296
Likes: 0
From: Atlanta
Has anyone tried using a more 'direct' port injection scheme using multiple nozzles on a FD? I've been searching but haven't found anything so far.
I'm considering tapping either the two secondaries or possibly all 4 of the runners in the extension manifold where they make the 90 degree turn downward to the intake manifold and then using a dual PWM S-HSV setup, one for each rotor.
I'll have a front and rear EGT signal and the ability to generate 2 separate scaleable 5v signals in relation to individual rotor EGT. So each rotor would receive injection based-upon 3D mapped to probably RPM vs. MAP vs. EGT.
Doing this wouldn't be cheap, because it would essentially be two systems, but it would account-for flow and operating differences between the two rotors by independently biasing the injection volume in order to stay below a desired max EGT.
From what I understand there are some significant temp and flow differences across the rpm range between the front and rear and it seems like a fast responding port WI/AI system could help control some of those differences. Overkill?
I'm considering tapping either the two secondaries or possibly all 4 of the runners in the extension manifold where they make the 90 degree turn downward to the intake manifold and then using a dual PWM S-HSV setup, one for each rotor.
I'll have a front and rear EGT signal and the ability to generate 2 separate scaleable 5v signals in relation to individual rotor EGT. So each rotor would receive injection based-upon 3D mapped to probably RPM vs. MAP vs. EGT.
Doing this wouldn't be cheap, because it would essentially be two systems, but it would account-for flow and operating differences between the two rotors by independently biasing the injection volume in order to stay below a desired max EGT.
From what I understand there are some significant temp and flow differences across the rpm range between the front and rear and it seems like a fast responding port WI/AI system could help control some of those differences. Overkill?
Good news and bad news, my comany (Coolingmist) is one of the only companies that can off the shelf do what you want. With no doubt we can do it, we have 2D grid based kits and 3D kits. Integrating boost, EGT and RPM can be done.
I recommend first you look at our Smart Injection controller, its a 2D Mapping device + full failsafe and datalogger
http://coolingmist.com/detailmain.aspx?pid=1099
Our stage 3D kits and 2D Kits have a special varicool that can create 3D Mapping as well.
The bad news is to do multi-channel mapping is going to be expensive as Vari-cool only has 1 channel.
I have some ideas that can help you save money if you want to call us I can go over it. 770.416.1041
David
Banned. I got OWNED!!!
Joined: Jan 2005
Posts: 296
Likes: 0
From: Atlanta
The bad news is to do multi-channel mapping is going to be expensive as Vari-cool only has 1 channel.
the bad news is to do Multi-Channel PWM is going to be expensive as Vari-cool has only 1 PWM circuit.
David
In the manuals it looks like there's 2 outputs per box for controlling the double stages on the S-HSV's? That's not correct?
If injecting alcohol, IMO its better to inject as far before the TB as possible to give maximum time for the alcohol to flash taking as much heat out of the intake charge as possible.
Its like to comparison between direct port sequential injection and TB injection of fuel. Direct port injection is better at low speed, but TB injection is really just as good at full throttle.
Well your only using the water/alcohol injection at full throttle.
EGT based injection is a good idea.
Its like to comparison between direct port sequential injection and TB injection of fuel. Direct port injection is better at low speed, but TB injection is really just as good at full throttle.
Well your only using the water/alcohol injection at full throttle.
EGT based injection is a good idea.