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Right Battery For A Ecr33

FBRacing

By FBRacing,
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FBRacing Rising Star

FBRacing

Posted
Posted

Out of curiosity and finalizing a debate with a friend, what is the correct CCA (cold cranking amps) and CA (cranking amps) for the RB's? I'm currently using 590 CCA and 740 CA. Buddy is saying that CCA should be at least 700 and CA near 875. To me that'd fry the starter. Am I wrong or is he? Tried googling starter specs but there's a great deal of conflicting specs due to remans and aftermarket. So what is the correct battery to use in a Skyline? Also should state this argument has been agreed upon stock compression ratios at 9:1.

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zoomzoom Mentor

zoomzoom

Posted
Posted

It wont fry the starter. Look up Ohms law.

Prolonged cranking would generate heat, however.

I use the largest battery I can fit, which is currently a 720 CCA light truck battery. Ive used as low as 500CCA, but the larger batteries last longer. My last 600CCA one lasted 7 years.

"At least" 700CCA is overkill though. My new one just happened to be the same size as the old one, so it was an easy choice.

R31 drift pig Experienced

R31 drift pig

Posted
Posted

I use an optima redtop dry-cell starting battery, 720cca/900ca. Haven't had an issue for over 2 years. I use them in every car I own. I won't use lead cell batteries again.

If you buy one meant for a VT commodore (model 35) it'll fit the factory R33 location and bracket.

GTofuS-T Grand Master

GTofuS-T

Posted
Posted

I use an optima redtop dry-cell starting battery, 720cca/900ca. Haven't had an issue for over 2 years. I use them in every car I own. I won't use lead cell batteries again.

If you buy one meant for a VT commodore (model 35) it'll fit the factory R33 location and bracket.

Good to know! Thanks

R31 drift pig Experienced

R31 drift pig

Posted
Posted (edited)

Good to know! Thanks

Im going from memory, but Im 99.5% certain that model is a VT, but Ill check my 33 tomorrow arvo and double confirm the part number.

Edited by R31 drift pig
junkie Mentor

junkie

Posted
Posted (edited)

Factory batteries in many jap cars would be around the 250cca mark. 350-400 would be plenty for a replacement. Higher capacity will give you more cranking power but won't necessarily last any longer and 650+ is generally used for diesel engines with their high comp.

I've done a couple of thousand battery replacements back in my NRMA batteries days, so know this stuff fairly well

Edited by junkie

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