Jump to content
SAU Community

Recommended Posts

I had some ignition problems a few days back and called the nrma (it was after work and i had no tools on me ok).

After looking over the car we traced the problem to a loose lead (previous owner must have bent the contact out of shape so i could come loose.

Anyway thats no the point of all this.

One thing the mechanic mentioned to me is that as far as he knew skylines needed what was known as a high discharge battery or something of a similar name. he said that these batteries are vented and pointed out what looked to be a vent hole just to the left of the battery when viewed from the boot.

According to him the high power requirments mean that alot of gas is produced and if that is not correctly handled and left to build up a stray spark COULD (please note could not will) ignite those gas's hence the venting hole.

I've done a search and found a few comments about the right battery etc etc but no one has mentioned this.

Can anyone confirm or deny this.

Link to comment
https://www.sau.com.au/forums/topic/39738-odd-battery-fact/
Share on other sites

I just got a new battery the other day and the mechanic didnt mention anything about having to get a high output battery or whatever. All he said was to take the black plastic box off the battery because it will cause it to overheat and die earlier.

Link to comment
https://www.sau.com.au/forums/topic/39738-odd-battery-fact/#findComment-811610
Share on other sites

Can't comment on your mechanic's comments re the high discharge stuff, however the battery area is vented to air because it is in the boot, any battery can produce gasses. As far as I know ...the Skyline power requirements are no more than any other modern car with fuel inj, power everything and air con etc.

Link to comment
https://www.sau.com.au/forums/topic/39738-odd-battery-fact/#findComment-811618
Share on other sites

I have read in at least three places that there is meant to be a maintenance-free battery with a vent hole that allows a tube to be fitted to it... This tube leads outside the car.

I watched one of my father's friends disconnect a charger from a battery before turning off the power point, I then watched him fly 30 feet through the air before hitting a brick wall, the impact killing him.

I have always worried about hydrogen gasses building up in my boot, with all the audio amps in the boot and smoking in the back seat. Hasn't happened yet but I keep worrying!

Next battery I get will either have this vent tube, or be enclosed in a box that's forcibly ventilated.

Link to comment
https://www.sau.com.au/forums/topic/39738-odd-battery-fact/#findComment-814650
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Oof, I will forevermore have those shredded gears in mind whenever someone talks about showing mechanical sympathy towards their car. Thanks for the photos, fascinating stuff!
    • Curious to see how the SpeedTek stuff holds up
    • The holdups last year were drivetrain related. I had the car out right after getting the bearing issue resolved. Third launch and the car didn't move after releasing the clutch. It had sheared all the engagement teeth off the 1st gear.    Thankfully no other damage was done. I set an aftermarket gear beside an OEM gear and found that the engagement teeth on the OEM gear were much larger and better supported. Looking through my bin of spare transmission gears I found that there are two types of tooth on the OEM first gears - the larger tooth and the smaller tooth. It looks like most aftermarket gearset manufacturers base their design on the smaller tooth. OEM large tooth left - Speedtek, OS Giken, etc or OEM small tooth right Decided to give that larger engagement tooth a try. Pressed the ring off an OEM gear and sent it to a transmission manufacturer here in the States. They did their "faceplating" operation with my synchro ring on the Speedtek gear.   I reassembled it, took it back to the track and promptly destroyed the gear itself.  I'll rebuild this and use it as a spare - thankfully just first gear and the countershaft are damaged beyond repair. Definitely disheartening but my welded on engagement tooth ring held up!  Moved to Speedtek's dog engagement design as the gears appear to be much stronger. So far they have taken much more abuse at the track. Also scored a Stillway lockout from the Netherands for super cheap. It's for some other RB transmission so it took a bit of fabrication to fit but honestly a very easy job. I also had to heavily modify the gates as they were very different.   Then for some reason at the last test and tune a silicon coupler below the throttle blew off and took out the radiator and fan. Thankfully it was in the burnout box and not down track. This car is really beating me up - I still haven't made a pass in it. Ran it through the gears many times on the street but it keeps biting me at the track.  Currently in the process of replacing the radiator and remaking the throttle pipe to remove the coupler and use a cast 90 and a vband. I WILL get this thing down the track...
    • Covers most of the above points really. There's a few exceptions but most just see driving as an irritating but necessary task they must complete if they want to get anywhere on time. Also see it as a good time to show their awesome multi-tasking abilities on their mobile and/or doing their makeup.  
    • I don't believe I posted pictures of the second oil pump pickup I added so here they are. Data shows it gets oil pressure up to the relief pressure much earlier in the RPM. Is that important? Not likely... This was just another attempt to fix the bearing issues.   I also heavily opened up the inlet to the pump since it now had to flow oil from two pickups. I believe the diameter increased about 1/8".
×
×
  • Create New...