Specs of the STOCK battery??

[kmbkk]

I believe it's the DEKA ETX16 battery. Specs:

325 CCA
17 lbs
Size: 6 7/8(L) X 4(W) X 6 1/8(H)

Not great for runing an audio system by itself, but should be sufficient for starting the car.

[kmbkk]

On a different note, does anybody know the amp rating of the stock alternator?

[Scooby South]

Originally Posted by kmbkk

On a different note, does anybody know the amp rating of the stock alternator?

I am going to say 100 for now... I will check it on the catalog in a bit...

and yes...Not a big audio guy..so no biggie there...weight savings for Autocross..yess please.....and IS sufficient to just start the car..

Bill

[2pt5RS]

Originally Posted by Scooby South

I am going to say 100 for now... I will check it on the catalog in a bit...

and yes...Not a big audio guy..so no biggie there...weight savings for Autocross..yess please.....and IS sufficient to just start the car..

Bill

Hey Bill...this car has an amp to go along with that stereo. It's not like your speedwagon. You may need a slightly bigger battery.

[Scooby South]

Originally Posted by 2pt5RS

Hey Bill...this car has an amp to go along with that stereo. It's not like your speedwagon. You may need a slightly bigger battery.

Matt...that is SOOOOO true..

The plan is... to swap it out with the factory one..only when I race... so the stereo is a low priority....then swap it back for Daily/normal driving..

Bill

[stevo_12v]

I finally settled for one of these:
http://www.braillebattery.com.au/ind...tteries/b14115

Just under $350(AUD) including tie-down, battery tender and freight.

[miodculae]

Originally Posted by stevo_12v

I finally settled for one of these:
http://www.braillebattery.com.au/ind...tteries/b14115

Just under $350(AUD) including tie-down, battery tender and freight.

nice. weight only 11.5 lbs.

wonder how it will perform compare to stock. please report back.

how much of a weight savings ?

[stevo_12v]

Originally Posted by miodculae

nice. weight only 11.5 lbs.

wonder how it will perform compare to stock. please report back.

how much of a weight savings ?

Having a quick google at the code of "55D23L". The weights vary from high 14kg to mid 15kgs. ie: http://www.centurybatteries.com.au/s...asa_55d23l.pdf

So I believe at least a 9kg(20lbs) weight saving is to be had. Almost the equivalent of taking out your spare tyre out of the boot.

[stevo_12v]

Update: Just installed the braille 20mins ago. Car starts fine. Haven't left it on a 'tender' yet. See how it fares in the morning.



Yes I know the install looks weird. I will have to get some type of lightweight enclosure made up to house it. Battery is tied down although it doesn't appear so. I can push the car(in neutral) while holding onto the battery.

Pushing it *backwards* towards the empty space..
more pics on my build thread in my signature.

[86BRZ]

Stevo12v, imam thinking the same battery. Do you have any issue after replace? How about the driving feel after losing 20 lbs?

[stevo_12v]

No issues what so ever. Really good battery. It's been running excellent since I posted up above(30th August) Starts first time all the time. I don't even have it connected up to a tender.

You'll notice a slight bit of pickup. Similar as if you've removed your spare tyre. Highly recommend it. Get a DEKA if you can't afford the braille. They are the same battery.

[86BRZ]

Originally Posted by stevo_12v

No issues what so ever. Really good battery. It's been running excellent since I posted up above(30th August) Starts first time all the time. I don't even have it connected up to a tender.

You'll notice a slight bit of pickup. Similar as if you've removed your spare tyre. Highly recommend it. Get a DEKA if you can't afford the braille. They are the same battery.

Thank you. I am thinking about.. Both! Battery and spare tires to cut 50 lbs, and thinking hard for more ways to cut weight...

(like only fill up half tank...)

[stevo_12v]

Originally Posted by 86BRZ

Thank you. I am thinking about.. Both! Battery and spare tires to cut 50 lbs, and thinking hard for more ways to cut weight...

(like only fill up half tank...)

Get lightweight rims in that case. Ideally WedsSports .. but Enkei RPF1's.. they are great, cheap and light.
And go for the HKS Spec-L exhaust, lightest exhaust so far - unless you want to go Ti.

I changed mine over on the weekend.. the weight of the stock muffler itself is heavier than the whole HKS CBE.

[gmookher]

rotational and unsprung weight has the greatest effect