Engine Builders talk.
#6722
#6723
Senior Member
#6724
When all else fails shop for truck parts...hey look a radiator I don't need..but shiny
Last edited by jferg92; 01-20-2015 at 01:04 AM.
#6725
Senior Member
LOL. Looks like both of us are browsing ebay. Just ordered a blend door actuator for the grand prix. Also pricing head gaskets for the truck. Those, SC gaskets, water pump, belt and a couple more odds & ends & I'll have her ready.
#6726
Senior Member
The higher the strand count the better the conductivity is. Regardless if its tinned or not. I use silver/tin solder. I'm using 2/0 that has 6230 strands. It copper core with a tinned skin. Its rated for over 480 amps current draw. Conductivity is more crucial when talking Voltage. Not so much amperage.
Look at it like a water hose. Amperage=pressure Voltage=flow.
Look at it like a water hose. Amperage=pressure Voltage=flow.
#6727
Senior Member
iTrader: (2)
I don't much care for the very high strand counts. It is flexible but wears much easier. The resistance of a 1ga wire over 10-12ft is pointless to argue over if you are using copper. They are essentially the same when talking about this application. Anyways; heres some math/physics for the nerds For No. 12 AWG Table 8 of the NEC does list two different DC resistances for stranded and solid copper. DC resistance per 1000 feet for solid is 1.93 ohms For stranded the DC resistance is given as 1.98 ohms per 1000 feet. So solid should have a slightly higher ampacity. If we use Table 310.16 of the NEC to determine RCA and substitute into the Ampere calculation we can find the approximate differences in ampacity. From Table 310.16 using 75 degrees C as the ambient. I = 25 amperes, TC = 75 degrees C, and TA = 30 degrees C and RDC = 1.98 ohms per 1000 feet or 0.00198 ohms per foot. This converts to 1980 microhms. From I (in kiloamperes) = SQRT(( TC-TA)/RDC*RCA)) Or RCA=(TC-TA)/RDC*I*I Or RCA = (75-30)/1980*0.025*0.025 RCA = 36 thermal ohm feet For stranded, I = 0.025 kiloamperes from the table For solid No. 12 copper I (in kiloamperes) = SQRT ((75-30)/1930*36) or I = 0.0254 kiloamperes Then the solid No. 12 copper would have a 0 .4 ampere increase in ampacity. This is a 0.4/25 *100 or only a 1.6 per cent increase. Considering that ampacity tables are approximations, this increase in ampacity does not exceed the error of approximation.
The following 2 users liked this post by ibd2328:
Jbrew (01-20-2015),
MyFX4Project (01-20-2015)
#6729