Search results for query: *

The shunt is 360 brass. Less conductive than copper. .035 thick, .490 wide, and .890 active length. I started wider and reduced the width for calibration. Ohm's law for parallel resistors will get you very close. The OEM ammeter is not terribly precise, I measured 3 different ones...

This one, while rather amusing to look at could have been a lot worse. Driver said she heard a loud "Pop", the car stalled and would not re-start. At first it was a mystery why the hood was so hard to open... Lucky for her the cheesy replacement terminal melted in half before...

A fusible link is just a copper wire. Fusible links are generally 2 gauges smaller than the circuit they protect. Made with fairly high temperature insulation that is a little thicker, sothat they look the same size as the circuit's standard wire. They are only there to take care of a...

Kit: Most of the formulas are in that paper, as well as the frequency parameter / priority strategies that TI worked out to sell that part to GM. Worth a read even if you go another direction. Keep us posted on the progress with the ignition. B.

An elegant approach. Since you have a plenty of processing capacity, you might think about adding knock detection to the unit. Hard to find a new car without a knock sensor. Here is some info on DSP and knock detection. They cover the signal conditioning and implementation of knock control...

On monday, drive it over to: AMA 3601 West Clarendon Phoenix AZ (602) 233-0090 Ask for Tim or Jack, and tell them what happened. You can't be the first guy to do this, and I know they are straight shooters in the A/C business. I know there are diodes in some A/C clutch circuits...

Dual points? Or single points? Generally dual point distributors were high performance units. Really, it all comes down to being a better switch. The Dwell Angle of a single set of points can only be so large, since they need to open far enough to do the job. Dual point units use...

Here are the pin outs for the coil & module you have: Coil 4 Pin GM ICM .

Did you set the timing after you installed it? .

I check total timing on MSD's @ 3500+ rpm. Anything below that will give you odd data. I had a Snap-On light that was flaky as hell. Sometimes it was ok, other times it was intermittent, flashing once every 5 or 6 revolutions. Drove me nuts. I di the wiggle test on the pickup cable, no...

Please don't add a 20 amp load to the already woefully undersized factory wiring in that car. The OEM wiring was marginal when it was new, and it is 45 years old now. That ignition switch is overworked at 15 amps. Run a dedicated circuit right from the battery positive with a thermal...

While the carburetor may be less than perfect, there is plenty of evidence of an electrical fault. Idles in park just fine. Once you move the column mounted gear selector, "Trouble Starts". The horn does odd things. Turn signal may be affected. Time to start looking at the wiring in the...

Well, if you keep disconnecting the battery on a running vehicle, you will keep having troubles with the charging system. This is not a valid test for anything in an alternator equipped car. It can lead to blown diodes, burned out lamps and fried electronics. You will never find this so...

A common misconception. Many of the really high output units in car audio competition put out only a few amps at idle. For A/C & a little audio? a brand new 70 to 80 amp unit if you want to stay stock appearing. You will lose a little idle output with the underdrive pulleys. Or a 3G/4G...

Poorly. Very poorly. That was a 70 amp alternator on the best day it ever had. Reworking the stator for higher amperage trades low end output power & peak voltage for more amps. This means it does not put out much at low speeds, then you cripple an already limping alternator by driving...

The horn circuit is the scariest part of the A body electrics. Completely un-protected. The horn relay draws power from the B+ terminal on the start relay, then the relay output feeds the horns through the typical mopar undersized wire sharing harness space with several other circuits. If...

Even if that alternator & charging system is in perfect is in perfect shape it can't keep up with more accessories than OEM I can't say what you had for drive ratios on your 340, but the drives from a stock 318 are 7.25 on the crank & 3.00 on the alternator. That is a 2.41:1 overdrive. So...

What you have is what is left of a 60 amp alternator. The rpm ranges indicate a bench test after rebuilding, and would indicate a decent rebuild. Those speeds are alternator RPM, not engine rpm. Calculate alternator speed from engine idle speed & drive ratios. This is why underdrive...

Sure is. Just connect according to the MSD diagram. The Pertronix acts like a set of points, so the MSD uses that as a trigger. B.

I don't believe "no name" is an accurate description. I posted a link to the actual manufacturer's website in the 7th post in this very thread. I did speak with the manufacturer at AAPEX 2011. regardless of the US vendor, any of the units you see with that chrome plated, formed steel cover...

I am very familiar with the existing OEM fuel pressure regulation - and it's shortcomings. two events per revolution? Not really necessary, but ok if you want to. Trying to time events on a TBI takes a lot of processing. OEM's never bothered and still passed emissions just fine...

I never had any luck with firing an injector less than once per revolution with TBI. The split plane manifold feeds two cylinders per revolution from each plane. Four cylinders fire per revolution. If you skip a revolution the part throttle lean misfire crops up after a few revolutions...

Just use the ford 2 barrel TBI. They made it fit the existing 2V manifold, and it takes a standard air cleaner just like the 2V carbs do. Simple. Uses the more conventional Bosch style injector too. B.

With 2 injectors on a dual plane manifold you need to batch fire the injectors. assuming a 5500 rpm redline, your max pulse width per engine revolution would be 9 milliseconds. With a minimum pulse width of 1 millisecond for idle operation. You can just fire them together, no need to...

NGK 2332's

Is that the old lens with the pocket in the middle like this: http://www.taillightking.com/images/61-70DodgeCar/62D_Dodge_TLLens.jpg If so the halogen bulb will kill that lens. Running the halogen bulb on 50 year old wires that are 3 gauges too small may destroy something else too - or...

Here ya go, hero, your own words. Wrong, just plain wrong. Look at the chart from your own component. The voltage drop across that diode increases as current goes up. They all do. For an increase in voltage drop, you need an increase in resistance. The diodes are your choice. They...

'273: I did not mean that you had the theory wrong - you in fact agreed with the diode's increased voltage drop under load. I was referencing the OP's failure to understand the voltage drop. Sorry if I was not clear. A direct reference between the regulator & battery does not exist in...

Well, '273 it does matter. If you have the theory backwards, you may have made other mistakes... If someone rolled in here to FABO saying that increasing compression reduced detonation, you guys would be on him like white on rice. If the rebuttal was that you had "confused detonation with...

Not confusing anything. Open the link. Read the plot. Voltage drop on one axis, current on the other. Pretty straight foreward. It does not get better with more current. Period. .