Jump to content


Photo
- - - - -

260z RB25DET swap


  • Please log in to reply
47 replies to this topic

#41 CGraves

CGraves

    Advanced Member

  • Members
  • PipPipPip
  • 116 posts
  • Location:Wilmington, NC
  • Cars:'72 240z, '74 RB25 260z

Posted 15 January 2017 - 05:54 PM

@Draker 

 

Thanks man I appreciate the kind words.

It's also update time! I haven't really done much because this build is coming into the final stretch right now.

 

I mounted my intercooler after I had to wait 15 days for it to arrive. My piping should arrive sometime in the middle of this week.

 

3S563NR.jpg

 

Throttle cable was made + mounted today. It was actually the easiest thing I've ever done and I can't believe some companies get off on charging over $150 for a throttle cable for this thing.

 

5P3LHIu.jpg

8Y4VRLC.jpg

e9kNcRg.jpg

 

I got my battery cables ran I think this is gonna be the final location for the battery.

 

cYKznYv.jpg

 

And to round the post off a shot of my car finally looking like a car again. All that is left is driveshaft + wiring and I'm done!

 

ERQqI70.jpg



#42 Lockleaf

Lockleaf

    Hall Monitor

  • Senior Member
  • PipPipPipPipPip
  • 4,214 posts
  • Location:Happy Valley, Utah
  • Cars:'71 510 Goon, '90 240SX, '85 720, '69 Roadster, '96 Pathfinder, too much other shite

Posted 15 January 2017 - 07:43 PM

Just fyi in case you aren't aware.

Batteries give off gasses. Only agm or vented batteries should be used inside a vehicle, or a normal battery inside a sealed container which is vented to outside the car.

Looking good :)

Half Pint ('71 510 Goon) http://community.rat...agon/p?=1269361

 

Audrey ('69 Roadster 1600) http://community.rat...rey-the-ratster

 

Tiny Havok ('85 720 DIY built Crewcab 4x4) http://community.rat...ache/?p=1395455

 

720 Shenanigans http://community.rat...20-shenanigans/


#43 CGraves

CGraves

    Advanced Member

  • Members
  • PipPipPip
  • 116 posts
  • Location:Wilmington, NC
  • Cars:'72 240z, '74 RB25 260z

Posted 15 January 2017 - 07:48 PM

@Lockleaf

 

Shit.

 

Can you explain this situation a little more in-depth but also pretend like you are telling it to a 5 year old.



#44 Lockleaf

Lockleaf

    Hall Monitor

  • Senior Member
  • PipPipPipPipPip
  • 4,214 posts
  • Location:Happy Valley, Utah
  • Cars:'71 510 Goon, '90 240SX, '85 720, '69 Roadster, '96 Pathfinder, too much other shite

Posted 15 January 2017 - 08:08 PM

FWIW, people do the same thing you have going on quite often, and never have issues. But it's against recommendations.

Normal lead acid batteries give off hydro chloric acid gases, which are potentially explosive.

AGM batteries (stands for Absorbed Glass Mat)(like optima batteries) do not give off these gases, so typically do not need venting.

Batteries that are used, from the factory, inside the car interior, have vent tubes built in to them. These tubes vent to the outside of the vehicle to open air somewhere so the gases don't build up inside the car.

So you can use a vented battery and run a tube, use an agm and not worry about it, or use a normal battery in a sealed box (even a Tupperware would work great) that has a vent tube in it.

Basically anything that prevents build up of potentially dangerous gases inside the car is the goal. I think all interior batteries should be in some kind of container anyway. They can leak, boil over, or at worst explode. All of this will wreak havoc on your interior should it occur.

If you have other questions, ask away. Battery part numbers are universal across all batteries (called "group size" and established by a regulatory agency called the BCI), so if you want some potential part numbers to look at, I can provide them. Any place that sells batteries could then help you.

Half Pint ('71 510 Goon) http://community.rat...agon/p?=1269361

 

Audrey ('69 Roadster 1600) http://community.rat...rey-the-ratster

 

Tiny Havok ('85 720 DIY built Crewcab 4x4) http://community.rat...ache/?p=1395455

 

720 Shenanigans http://community.rat...20-shenanigans/


#45 Lockleaf

Lockleaf

    Hall Monitor

  • Senior Member
  • PipPipPipPipPip
  • 4,214 posts
  • Location:Happy Valley, Utah
  • Cars:'71 510 Goon, '90 240SX, '85 720, '69 Roadster, '96 Pathfinder, too much other shite

Posted 15 January 2017 - 09:38 PM

Other battery relocation things to consider.


Increase the size of your positive cable by a size gauge or more over stock. Length=resistance, so you may not have enough power left by the time you reach the starter, or you may super heat your main cable. Both can be avoided with larger wire.

Install a heavy duty breaker at the battery. Since you will now have a large "hot" cable running the length of the car, you have increased possibility of that cable shorting to ground. A breaker will blow should this occur, preventing major damage or potential fire. Match the breaker to the maximum amperage potential of your positive cable. Both should be big enough to easily handle all the electrical demands of the car.

Here's a diagram I designed for the battery relocation (and addition of a fuse block) in to my 510 wagon, in case it helps.

Still working on wiring. The engine bay is getting closer to finished, but the dash is still a complete joke. And I haven't even started building a stereo harness. Baby steps, right?

But I drew these up last night. I have always hated the fusible link setup in my 720s, and now the same one is in my wagon. I think I've come up with an excellent upgrade to that design, but may be wrong, so feedback is appreciated.

fuselinkupdate_zps8hklsvhl.jpg

Wagon%20wiring%20layout_zps6hkabepu.jpg

Relocate battery under rear seat.

Install high amp breaker right next to battery. If long battery cable ever shorts to ground, it trips, hopefully preventing any real damage anywhere. Breaker also has manual switch, so I will use it as a kill switch.

Run cable up to engine bay.

Install power distribution block on shelf where OE fuse block sat. Batt cable splits in two directions. One directly down to starter. One to maxi fuse block.

Install maxi fuse block on OE fuse block shelf. Wire car harness directly from that box in place of fusible links.

Now I just need to figure out the proper amperages for the fuses.


Half Pint ('71 510 Goon) http://community.rat...agon/p?=1269361

 

Audrey ('69 Roadster 1600) http://community.rat...rey-the-ratster

 

Tiny Havok ('85 720 DIY built Crewcab 4x4) http://community.rat...ache/?p=1395455

 

720 Shenanigans http://community.rat...20-shenanigans/


#46 Laecaon

Laecaon

    Mormon? or just moral?

  • Senior Member
  • PipPipPipPipPip
  • 9,035 posts
  • Location:Hillsboro Oregon
  • Cars:71 Wagon decommissioned, 02 BMW 325iT

Posted 15 January 2017 - 10:38 PM

I will mention, my AGM says to not install inside a vehicle with its supplied instruction.


Im also ignoring that since it is a AGM...


I would get either a Deka(Intimidator) or Interstate.

And the expelled gas, do you really want to breathe those fumes?

Signature.jpg


#47 Bleach

Bleach

    French Administrator

  • User Administrator
  • 6,668 posts
  • Location:Seattle area
  • Cars:280Z and 280ZX turbo

Posted 19 January 2017 - 11:01 AM

ya, don't breathe those fumes


Thank you Ted!
sig31.jpg
BleachGarage.com - - Datsun Shows in the year 2017 - - Bleach Garage on YOUTUBE
I wished I lived in the golden age; giving it up on the broadway stage
Hang with the Ratsuns, smoke cigars; just have a break with Frank and count the stars

#48 CGraves

CGraves

    Advanced Member

  • Members
  • PipPipPip
  • 116 posts
  • Location:Wilmington, NC
  • Cars:'72 240z, '74 RB25 260z

Posted 19 January 2017 - 12:20 PM

Update with no pics unfortunately.

 

I got my intercooler piping ran and now I'm waiting to get my radiator welded and my driveshaft cut which both will hopefully be done tomorrow but while I have all this downtime I fixed some odds and ends on the car like the heater not working and the passenger door alignment etc. 

 

I also found some emblems that I got in a box with my 240z and decided to stick them on but all the holes have been filled up. Does anyone have a template for the rear hatch emblems so I can tape them down?