Incoming 420R, California

[hahuang65]

On 3/25/2025 at 5:26 PM, Nocturnal005 said:

If interested I could make a few for the community, or share the CAD. 

I've been considering the antigravity vs the AGM... how could i get one of these? I'd be happy to pay. Unfortunately I no longer live in San Jose, so I couldn't just meet you... UNLESS I can have a co-worker (in San Mateo) pick it up before the end of April, as I'm meeting him for work late April in SoCal.

[KnifeySpoony]

Not to dissuade either of you from that slick looking solution, but just fyi this is what I did for my car - I can provide links to parts if you are interested.

[hahuang65]

11 minutes ago, KnifeySpoony said:

Not to dissuade either of you from that slick looking solution, but just fyi this is what I did for my car - I can provide links to parts if you are interested.

Would love to see the list of parts!

 

Thank you!

[KnifeySpoony]

This is the tray. I used double stick tape to keep it from shifting on the old battery tray/platform. I also put some adhesive backed foam to line tray so the battery fits in snugly. I cut off the two tabs that were in the way. I also cut off the vertical tabs off the old platform, obviously.

 

https://www.amazon.com/dp/B09L2WFQVZ?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1

 

And this is the top bracket. The J hooks are extra long, I just cut off the excess. The hooks work perfectly in the side holes on the factory tray. I also chose this bracket as it does not interfere/cover the restart button on the battery (though I have yet to need it)

 

https://www.amazon.com/dp/B09TZ365CD?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1

 

 

This setup has been rock solid for me. I initially wanted to have the battery laying down (for aesthetics only, as it's so light the weight up high really isn't an issue), but this was simpler and has worked out fine. 

Edited Friday at 03:31 PM by KnifeySpoony

[hahuang65]

@KnifeySpoony thanks!

[Nocturnal005]

Here are the final designs I ended up with, being fabricated now. Anyone can order these themselves with the CAD files provided. 

 

Sendcutsend.com can turn these around in about a week. The material to specify is 5000 series aluminum, 0.08" thick. 

 

 

Antigravity ATX-12 HD Caterham Base Plate v11.step Antigravity ATX-12-HD Hold Down v9.step

[Nocturnal005]

I'll have these in hand hopefully by the time I return to the US and will report back here with pics! 

[Nocturnal005]

13 hours ago, KnifeySpoony said:

Not to dissuade either of you from that slick looking solution, but just fyi this is what I did for my car - I can provide links to parts if you are interested.

 

I really should have specced the car without a heater, looks so clean! I think I'll not drill the heater valve control for now and drive around a bit to see if the heater core is really needed in addition to the heated seats and then decide. 

[KnifeySpoony]

I see you're also in the bay area. I also see you're running aeroscreen. I'm much more often too hot than too cold in the car. The car roasts you pretty well in anything above 60deg temps. I also don't have carpeting so the metal tunnel conducts heat really well to my right leg. In cold weather,  more heat coming underneath the dash doesn't seem all that helpful to me if you're running an aeroscreen. There's so much turbulence at speed that warm air will not stay in the cockpit. On cold AM drives to fall trackdays it is wicked cold. I have heated seats but the cold turbulent air really sucks the heat out of you. However I can't imagine the heater would help all that much unless you are running a hood/sidescreens. Would be more useful to wear a heated jacket/gloves (which I am considering trying after a 36deg drive to Laguna one morning that just about killed me). 

[MV8]

Also, usually the cost is just slightly more than one to buy two of something being cut/bent.