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Search took 0.01 seconds. Search: Posts Made By: Dark Sun
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-17-2024, 10:00 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
See that’s a great response with useful...

See that’s a great response with useful information. I know it’s not perfect and was asking for the comparison so I can understand and tune the math. It was my first attempt and math channel and I...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-17-2024, 09:44 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
And I understand this exactly, you stated what...

And I understand this exactly, you stated what I’m looking at in this math channel I’m working on. It’s programmed with a known amount of air interring the engine, it injects a calculated amount of...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-17-2024, 09:04 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
So how much PSI are you at with all the mods you...

So how much PSI are you at with all the mods you listed? I know there’s recipes out there and everyone is a cook, but nothing tastes the same when all the cooks follow the same recipe.
So as I...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-17-2024, 08:20 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
And in WOT and PE in open loop, it’s guessing at...

And in WOT and PE in open loop, it’s guessing at what to do for AFR as it doesn’t have a wide band to read, so how does it KNOW if it’s lean or not?
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 08:38 PM
Replies: 34
Views: 1,109
Posted By Dark Sun
And I understand what you are saying and I’ve...

And I understand what you are saying and I’ve been studying this ECM along with other tune files so I can get an understanding of it all. That’s why I asked if someone would be willing to test out...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 01:41 PM
Replies: 34
Views: 1,109
Posted By Dark Sun
I haven’t changed anything the car and tune are...

I haven’t changed anything the car and tune are stock. So you’re telling me the ecu has no way to measure fuel and just goes off the tables programmed and guesses how much fuel to spray with “x”...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 01:00 PM
Replies: 34
Views: 1,109
Posted By Dark Sun
No one willing to test this math channel to see...

No one willing to test this math channel to see if it’s close or not?
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 12:20 PM
Replies: 34
Views: 1,109
Posted By Dark Sun
Ok so I have to ask, if there is no fuel...

Ok so I have to ask, if there is no fuel measurement, why does the scanner show fuel pressure, commanded fuel pressure, injector flow, and how does the ECM in open loop know how much fuel to meter...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 10:47 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
Ok i see and understand that.

Ok i see and understand that.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 10:42 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
So Im confused and that's why i asked if someone...

So Im confused and that's why i asked if someone could test the math. If AFR is based on 14.7 parts of air to 1 part of fuel, then if you have the measured amount of each, would that not be the same?...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 10:25 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
Mass Airflow SAE divided by Instantaneous Fuel...

Mass Airflow SAE divided by Instantaneous Fuel Flow Est. both in Grams per Second.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 01-15-2024, 09:33 AM
Replies: 34
Views: 1,109
Posted By Dark Sun
HP Tuner Math Channel Help

So let me start by saying my first post here was a complete misunderstanding on my part with how I though things worked.

Now I'd like some help if possible from anyone willing with HP Tuners. I...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 11:37 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
At any given point in the rpm range, only 94...

At any given point in the rpm range, only 94 cubic inches are being filled or filling, the rest are either in compression, power stroke, or exhaust stroke as a continuous cycle. Your math is off,...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 11:10 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
Ok, so if I make the world’s first variable boost...

Ok, so if I make the world’s first variable boost supercharged LSA engine that can make 2-14 psi on stock pulleys, I’d be famous!
Challenge Accepted! Give me a week.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 11:04 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
So if I prove all this is indeed correct what...

So if I prove all this is indeed correct what does that make me? Or what does that make everyone else for not seeing it? I can make a simple video to show this and how it works. Or I can do a connect...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 10:59 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
It’s 94 cubic inches per revolution,(376 divided...

It’s 94 cubic inches per revolution,(376 divided by 4) that 301 cubic inches is filling. Hence the pressure, the engine is 4 strokes. And I have looked at the supercharger map. It’s rated at...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 10:27 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
So the bypass actuator is vacuum operated on one...

So the bypass actuator is vacuum operated on one side and pressure operated on the other, WOT there’s no vacuum and the spring in the actuator pushes the butterfly closed and hence builds pressure in...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 08:24 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
It’s not uncommon for an industry to take...

It’s not uncommon for an industry to take advantage of the ignorance of people. A shirt is made in China for .50 cents, put on a boat and brought here, and sold for $75 because it has a logo on it....
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-16-2023, 07:28 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
It’s math and cannot be undone. Engine: 376...

It’s math and cannot be undone.
Engine: 376 cubic inches @ 6500 rpm
Blower: 115.9 cubic inches @ 16900 rpm
Pulley Ratio: 2.6
Volumetric Efficiency @ 85% for both
14.7 psi atmospheric
Total...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 03:35 PM
Replies: 68
Views: 2,584
Posted By Dark Sun
“At idle, engine vacuum is applied to the upper...

“At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting spring tension to hold the bypass valve open. As engine load is increased, engine vacuum is decreased,...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 02:27 PM
Replies: 68
Views: 2,584
Posted By Dark Sun
Yes and no, blower speed increases cfm,...

Yes and no, blower speed increases cfm, restrictions make psi, now I know the stock pulley will not make 15 psi at the given cfm, but it will make 13 as I’ve done. I’m just going to have my ECM...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 12:37 PM
Replies: 68
Views: 2,584
Posted By Dark Sun
So here’s where I’m at now after speaking with...

So here’s where I’m at now after speaking with Lingenfelter and other tuners. I’m going to get the car tuned for 14-15 psi, fuel/air, and timing. Then I’m going to put a dial in the cockpit that will...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 11:37 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
The mod I have done mechanically, can also be...

The mod I have done mechanically, can also be done with a resistor across the wires at the solenoid to lower the voltage the ECM supplies it, thereby closing the valve some, and increasing boost....
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 11:22 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
And now you get to the root of it all. The...

And now you get to the root of it all. The solenoid valve controls the bypass actuator by venting/regulating the pressure to the bypass actuator diaphragm. This is what I’m talking about this entire...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 11:13 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
Boost is made under the rotors not behind the...

Boost is made under the rotors not behind the throttle plate. It’s always under vacuum at the throttle plate wither closed or full open, there is always vacuum. Even if it’s .005 hgv.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 09:59 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
Again, where is the percentage of the charge air...

Again, where is the percentage of the charge air valve for this amount of boost.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 09:54 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
[QUOTE=FASTFATBOY;11388539]When vacuum drops past...

[QUOTE=FASTFATBOY;11388539]When vacuum drops past "X" and the ecm see's the TPS high enough yes the flap closes.

Once again, the blower pulley and or RPM dictates max boost(all else being stock or...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 08:40 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
I don’t care if they do, I’ll figure it out...

I don’t care if they do, I’ll figure it out anyway just like I did this. I’m just sorry everyone thinks they have a full understanding of how this supercharger works or the bypass valve. All I’ve...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 08:21 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
So you are saying that the bypass valve is fully...

So you are saying that the bypass valve is fully closed anytime the supercharger is in boost through out the rpm range? I understand it to work like this, bypass closed to build boost, as the boost...
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 12-15-2023, 07:49 AM
Replies: 68
Views: 2,584
Posted By Dark Sun
Yup that’s exactly how I did it, the ol finger...

Yup that’s exactly how I did it, the ol finger squeeze. So my question is, why would I give the information I did to figure this out to anyone? Why tell, when I can teach, I’ll give the equations out...
Showing results 1 to 30 of 49
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