RTz

Better?

Good job! I guess we'll keep you around for a while longer

Your writing habits do not conform to our rules. I asked you nicely once and you chose not to take me seriously. Hopefully you will take me seriously this time. Before you post again, I want you to read all of our rules. Please pay particular attention to #5... http://forums.hybridz.org/announcement.php?f=65&a=2 If you post in this fashion again, I will suspend you for 7 days. After which, if you continue, I'll make the suspension permanent. Please respect our rules.

If the cam is indeed broken, you're likely stuck with replacing it. A picture would help greatly here. That sensor is the single most critical sensor in the entire EFI system. There is no way to bypass it (with the stock ECU). It must be in proper working order. P.S. please fix your shift key. Evan, Nissan calls that sensor a "crank angle sensor" even though it is, in fact, a cam angle sensor.

Depends on what tube is mounted but, for example, the 36mm tube reduces maximum focus distance down to around 4 feet (with my 200mm lense)... so no 'architectural shots' for the tubes.

Ljet clean-up... Aftermarket EMS clean-up...

OHSU campus... BRAAP and I worked on this building for months. Its difficult to capture its odd shape, a combination of compound angles, on a curve... Located above Portland, the view from inside can be stunning at times. Some of BRAAP's earlier night pictures were taken in this building, pre-glazed. The skeletonized structure on the right is an aerial tram, one of Portland's more controversial projects...

SBC Valve-train...

Jonas, In some cases, you point of view isn't completely unreasonable, but in many cases it *is* unreasonable. That's what Mike meant when he said "blanket statement". You can't say that about all entities. Does the President know about all your speeding tickets? Nope. He's got bigger things to worry about. He delegates that authority to someone else. That doesn't make him a "corrupt ahole". Does SuperDan know everything that goes on in this forum, including all the conversations and actions between every member and admin? Nope. Its not because he doesn't care... its because its an impossible load for one person. That's WHY we have multiple admins. He delegates that authority to people that he trusts. That doesn't make him a "corrupt ahole". That statement is synonymous with asking you to stop. This is not the first time you've been asked to cease and you continue arguing. If you've been asked to stop, please do so. If you feel strongly enough about your position, then PM that admin and discuss it with him. Continuing to publicly banter is not your wisest choice.

Melinda Gombert has this strip in her signature. Made me smile...

You crack me up Jeff... you create that which belongs in the Smithsonian, equally at home in the Fine Art dept. AND Science & Technology... and then install it on a old Datsun... I love it! Thanks for sharing.

Uh, no.

We don't have the accumulation you have, but we have had a fair bit of snow fall recently. Couple day's ago it was snowing profusely... and ambient was ~50F .

Careless teaching me to be careless...

May the Force be with you

A pair (or more) of resistors can be used to PROPORTION voltage. That is a voltage divider. That is what you're describing. There is no voltage loss, just a rearrangement. Total circuit voltage will always be the same, regardless of how many resistors are used. And that will be the end of this debate. It is seriously off topic anyhow (not your fault).

Doesn't the DMM complete the circuit? In that circuit, the LED 'see's' 5v. The resistor is only limiting the current. Industry calls that a "current limiting resistor", yes?. Why do they call it that? Because that's what its doing. They don't call it a "voltage limiting resistor" because its not limiting the voltage. Reducing the current, at the same voltage, decreases the wattage, and thats what keeps the LED from burning up. That statement, on its own, is misleading. In this cuircuit, measure the voltages at each of the red dots, in any configuration you wish and write them down.... Do the same with this circuit.... You'll notice that your voltage readings are exactly the same in each circuit, even though there is 100 times more resistance in the second circuit. Why? Because resistors do not IMPEDE VOLTAGE. However, put an ammeter in line of both of those and you see the total circuit amperage is 1/100 in the second circuit. Why? Because resistors do IMPEDE CURRENT. Resitors impede current. That is their function. That is what the do. Every English written modern textbook says so. Resitors do not impede voltage... not one modern textbook says they do.

Top of the page... http://www.doctronics.co.uk/resistor.htm "What do resistors do? Resistors limit current." Top of the page... http://www.kpsec.freeuk.com/components/resist.htm "Function: Resistors restrict the flow of electric current, for example a resistor is placed in series with a light-emitting diode (LED) to limit the current passing through the LED." No reference to dropping voltage. This is essentially what my picture above is measuring... You can put as many resistors in series as you like and the voltage won't drop... I'm having trouble seeing what's in your pictures, but it looks like its a voltage divider. Voltage dividers require two or more resistors arranged in a specific manor. Like this... Why does the voltage drop? Because you 'shorted' the circuit to ground. That's the way I understand it, anyway. No apology... I like pictures

I'm going to attempt to remove the size 13 from my mouth... Post 12 is accurate. What I said about voltage dividers is accurate. However, I didn't stop to think that adding a resistor in line with the AFM would effect the existing voltage dividing network of the AFM. In retrospect, it should influence it. I have never tried it because I think its the wrong choice, for the two reasons I mentioned in post 13. Sorry for the confusion.

You said "adjustable resistor", I said "potentiometer". They're the same thing. Go back and read my first post, with that in mind and you'll have your answer Taking a step back... as I said, a series resistor won't work. However, a voltage dividing circuit can be built out of two or more resistors. This is how the AFM works in the first place... it creats a voltage dividing circuit (as well as the temp sensors, TPS's, etc.) Google voltage divider... its one of the simpliest and most used circuits in electronics. I have not made an effort to figure out how do-able this would be in this case. There a few reasons, but I'll give you two to think about... 1) It would not only change the voltage at a given position, but it would also change the AFM's voltage curve. 2) The AFM 'tops out' before you reach peak RPM. In a stock NA L6, this happens somewhere around 4000 RPM, give or take. This means, at some point, the ECU is no longer measuring additional air. Any drastic changes you make to the AFM will make this transition very difficult. I like your thinking... creativity is the spice. If you want to play with this stuff, I encourage it, but I strongly recommend using an O2 meter (preferably a wideband). This will help you understand the effect of your changes.

Please explain the two pictures below... . . The resistor is 8000 ohms. Voltage is the same, within one tenth. Series resistors are not efficient at dropping voltage.

Its terminology... mechanical advance happens with RPM, vacuum advance with load. They are both mechanical devices. You never *HAVE* to run vac. advance. It helps economy and, to a lesser degree, light load throttle response.

A series resistor won't do that. Resistors don't drop the voltage, they drop the current. You can put a potentiometer in the water temp sender circuit and add fuel. In most cases, with mildy modded motors, a combination of adjusting the AFM and adding a potentiometer can get you pretty close.

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