OFC Vs CCA

[Bump4life]

alright boys I'm joining the party. Where competitions limit you to 2 runs of wire from alt the only way to go is OFC ahah.

for such a short run I bet you wouldn't see much of a difference if any at all. a tenth? maybe? only testing would tell you. if you are running front to back, I would say OFC, but 3 feet is only what you feel comfortable with. but what is 6 dollars to 12 dollars to do it with OFC? how many of these runs do you have to do?

if you are going for every tenth OFC. If you want it to work no problems CCA should be fine. especially KNu CCA, big azz wire.

I stand by OFC. Who wants to fit 4 runs of CCA instead when they could do 2 OFC runs and get similiar results. Yes cost is around same, but it is a pain in the a$$ to run 1 or 2 runs of 1/0 at least in a trunk car from front to back let alone for runs of wire. plus then you cant compete legally in some events.

Yea 160s is possible with CCA just better have a lot of it. probably be double the amount of runs vs the OFC. I have never done a 160 with CCA or had anywhere close to that experience, but I do know most anything is possible.

[ALPINE408]

alright boys I'm joining the party. Where competitions limit you to 2 runs of wire from alt the only way to go is OFC ahah.

for such a short run I bet you wouldn't see much of a difference if any at all. a tenth? maybe? only testing would tell you. if you are running front to back, I would say OFC, but 3 feet is only what you feel comfortable with. but what is 6 dollars to 12 dollars to do it with OFC? how many of these runs do you have to do?

if you are going for every tenth OFC. If you want it to work no problems CCA should be fine. especially KNu CCA, big azz wire.

I stand by OFC. Who wants to fit 4 runs of CCA instead when they could do 2 OFC runs and get similiar results. Yes cost is around same, but it is a pain in the a$$ to run 1 or 2 runs of 1/0 at least in a trunk car from front to back let alone for runs of wire. plus then you cant compete legally in some events.

Yea 160s is possible with CCA just better have a lot of it. probably be double the amount of runs vs the OFC. I have never done a 160 with CCA or had anywhere close to that experience, but I do know most anything is possible.

really double? just stop on this topic cause all your doing is making assumptions your "facts" come from what some one told you...

guess what i switched from CCA to OFC in my 160 burban same amount of wire all the way around wanna know what i gained going to OFC........

NOT A FUCKING THING not a tenth nothing and by your math the same amount of OFC to the cca is double the allowable current for nothing wish i saved muh money cause i use to think like you to... done RIGHT for half the price CCA all the way

but i will agree with the wire restrictions in his class 2 runs of ofc was the right choice

[finkster]

The chassis of the car sure isn't OFC.

[BobbyG2]

Meh, I get OFC for the peace of mind, and future proofing...

[SCS_Audio]

really double? just stop on this topic cause all your doing is making assumptions your "facts" come from what some one told you...

guess what i switched from CCA to OFC in my 160 burban same amount of wire all the way around wanna know what i gained going to OFC........

NOT A FUCKING THING not a tenth nothing and by your math the same amount of OFC to the cca is double the allowable current for nothing wish i saved muh money cause i use to think like you to... done RIGHT for half the price CCA all the way

but i will agree with the wire restrictions in his class 2 runs of ofc was the right choice

Ive seen the same thing as Alpine, not much of a difference at least for burps. Did a test right before finals. We were only pulling 220-250 amps through a 14 foot section but it was the same down to a couple hundredths of a db. Voltage drop across the length of the wire was maybe a tenth higher on the CCA.

OFC may be better.....but it costs twice as much and is NOT twice as good.

[stevog]

the only thing that was better from the knu ofc compared to the cca was that ofc was more flexible and the cca was starting to corrode.

[bassface]

I think cca rated for like 250 amp as opposed to 300 with ofc. which is like 6 runs of cca would equal 5 runs of ofc.

[Bump4life]

alright boys I'm joining the party. Where competitions limit you to 2 runs of wire from alt the only way to go is OFC ahah.

for such a short run I bet you wouldn't see much of a difference if any at all. a tenth? maybe? only testing would tell you. if you are running front to back, I would say OFC, but 3 feet is only what you feel comfortable with. but what is 6 dollars to 12 dollars to do it with OFC? how many of these runs do you have to do?

if you are going for every tenth OFC. If you want it to work no problems CCA should be fine. especially KNu CCA, big azz wire.

I stand by OFC. Who wants to fit 4 runs of CCA instead when they could do 2 OFC runs and get similiar results. Yes cost is around same, but it is a pain in the a$$ to run 1 or 2 runs of 1/0 at least in a trunk car from front to back let alone for runs of wire. plus then you cant compete legally in some events.

Yea 160s is possible with CCA just better have a lot of it. probably be double the amount of runs vs the OFC. I have never done a 160 with CCA or had anywhere close to that experience, but I do know most anything is possible.

really double? just stop on this topic cause all your doing is making assumptions your "facts" come from what some one told you...

guess what i switched from CCA to OFC in my 160 burban same amount of wire all the way around wanna know what i gained going to OFC........

NOT A FUCKING THING not a tenth nothing and by your math the same amount of OFC to the cca is double the allowable current for nothing wish i saved muh money cause i use to think like you to... done RIGHT for half the price CCA all the way

but i will agree with the wire restrictions in his class 2 runs of ofc was the right choice

sorry i dont necessarily mean its double but it definetly is not 1 for 1 run. IT is a pain in the a$$ to run more runs of CCA in cramped spaces.

that is what im saying. you and I have already gone over this and have expressed our thoughts. i dont want to have to hide a bunch of wire in my car. this was about OP in his case of 3 feet OFC or CCA will be sufficient.

[Bump4life]

After all the topics I have seen on here, it comes down to personal preference. who wants to pay more, who feels more comfortable this way or that way. at the end of the day, OP question is which to go with. for a 3 feet section it does not matter. what ever he wants will be fine. lets not make this into a argument again. its annoying as hell. im not here to argue. I'm stating my opinion from experience just like everyone else on here is.

[Blackedout]

The formula for voltage drop is:

Current x Length x Resistance of wire/ (1,000 ft)

All other things remaining the same, if you did the calculation for both wires that would give you the theoretical difference between the two.

Edit: Looked around on the net... Couldn't find a good comparison.

For the sake of argument.

Resitivity of:

17 strand (This is the stuff used in the electrical industry... probably find it in an uglies manual if you do any AC work)

1/0 Insulated OFC: .127 ohms/ 1,000ft

1/0 insulated CCA: .201 ohms/ 1,000ft

Take the delta: .201 - .127 = .074 ohms/ 1,000ft.

Put 100 Amps of current through it for theory.

100 Amps x 3' x .074 ohms/ (1000 ft) = .022 V difference... All other factors remaining the same.

To elaborate a little more.... You have a full OFC system. Isolated grounds front to back. 75' of wire total 150 Amps of current going through it.

150 Amps x 75' x .127 ohms/ (1,000 ft) = 1.43 volts of voltage drop ...

Now with CCA:

150 Amps x 75' x .201 ohms/ (1,000 ft) = 2.26 volts of voltage drop ....

The difference is ~.83 volts, all things remaining consistant.

*These values are theoretical. Only for the sake of argument to shed some more light on the situation.