Haltech Possible way to Set up a E6X for Sequential Injector firing Help!
03-16-05, 11:59 AM
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Possible way to Set up a E6X for Sequential Injector firing Help!
I was really amazed to find out that the E6X can not fire the injectors Sequentially.
To me this is rediculous.
I went this aftermarket F.I. route to have the highest performance intake as possible, and that is compromised with this limitation.
What really gets me is that there is no reason for this flexibility to be lacking.
The E6X in it's basic setup gets all the information it needs to accomplish this anyway - It just needs another window to adjust injector timing.
It's a software issue.
I've been looking into this lately and there are many good points with firing the injectors as air starts flowing into the engine - there are no drawbacks to this.
On the other hand, there are many disadvantages to having the fuel/air sitting in a long manifold and especially during throttle opening, having the increased pressure depositing the fuel on the manifold wall as the charge just sits there and waits for the next intake.
My friend with the Electromotive Tech3 noticed a large performance increase when he "port timed" his injector firing, especially at low RPM where we can use all the help we gan get.
We might be able to accomplish the same thing with the E6X as he did with his Electromotive, but we will need to add a simple circuit.
In our E6X setup - each rotor has it's injectors firing twice for every individual rotor's intake "breath".
Please correct me if I am wrong!!
If it's like the electromotive is - And hopefully it is - an injector firing coincides with a "port opening", the next time an injector fires it coincides with the other rotor port opening.
When one rotor's port is open - the other is not, so the fuel that injects into the "not open" port just stays in the manifold waiting for the next intake event.
It would be EXTREMELY simple electrically to fire the injector once for every two firing signals it gets - so an injector will only fire during an air intake for "it's" rotor (that injector's on time will need to be doubled).
There are other electrical "system" benefets with doing this as well.
If this works, it would be a performance and gas milage increase for the cost of a few electrical parts.
I'm an electrical engineer so I'll design the circuit and you guys can have it also.
I once found the information of "port opening timing" in relation to engine angle.
I will look for it again today.
The question I need help with is "At What engine angle does the haltech fire the injectors??"
If it corresponds with port openings (like the TEC3) we are in luck.
If it is close - I'm certain it would be an improvement.
I know injector duty cycle is an issue here. At WOT and High RPM duty cycles will be longer than the port will be open.
Staged injection will help with that, but the need for properly timed injector firing decreases with increasing RPM's and load.
Tell me what you guys think
Steve
To me this is rediculous.
I went this aftermarket F.I. route to have the highest performance intake as possible, and that is compromised with this limitation.
What really gets me is that there is no reason for this flexibility to be lacking.
The E6X in it's basic setup gets all the information it needs to accomplish this anyway - It just needs another window to adjust injector timing.
It's a software issue.
I've been looking into this lately and there are many good points with firing the injectors as air starts flowing into the engine - there are no drawbacks to this.
On the other hand, there are many disadvantages to having the fuel/air sitting in a long manifold and especially during throttle opening, having the increased pressure depositing the fuel on the manifold wall as the charge just sits there and waits for the next intake.
My friend with the Electromotive Tech3 noticed a large performance increase when he "port timed" his injector firing, especially at low RPM where we can use all the help we gan get.
We might be able to accomplish the same thing with the E6X as he did with his Electromotive, but we will need to add a simple circuit.
In our E6X setup - each rotor has it's injectors firing twice for every individual rotor's intake "breath".
Please correct me if I am wrong!!
If it's like the electromotive is - And hopefully it is - an injector firing coincides with a "port opening", the next time an injector fires it coincides with the other rotor port opening.
When one rotor's port is open - the other is not, so the fuel that injects into the "not open" port just stays in the manifold waiting for the next intake event.
It would be EXTREMELY simple electrically to fire the injector once for every two firing signals it gets - so an injector will only fire during an air intake for "it's" rotor (that injector's on time will need to be doubled).
There are other electrical "system" benefets with doing this as well.
If this works, it would be a performance and gas milage increase for the cost of a few electrical parts.
I'm an electrical engineer so I'll design the circuit and you guys can have it also.
I once found the information of "port opening timing" in relation to engine angle.
I will look for it again today.
The question I need help with is "At What engine angle does the haltech fire the injectors??"
If it corresponds with port openings (like the TEC3) we are in luck.
If it is close - I'm certain it would be an improvement.
I know injector duty cycle is an issue here. At WOT and High RPM duty cycles will be longer than the port will be open.
Staged injection will help with that, but the need for properly timed injector firing decreases with increasing RPM's and load.
Tell me what you guys think
Steve
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