ka24e510 wrote: ↑Wed Nov 02, 2022 6:55 pmHello Group,
I have a 93 Nissan Atlas F23 quadcab (japanese firetruck) with the NA20s (2.0l) manual trans. It has 22000 Kilometers on it. I have a copy of the service manual in english, i had to purchase from England from a guy (as a download) for $80.00. It is the Nissan factory service manual that covers both gasoline and diesel engines. im in the Southeastern united states.
my mods so far:
stainless steel cup holder
Air conditioning
vacuum idle up solenoid so it does not stall when the A/C is on
Phenolic Carbureator spacer (did not help)
Nissan Xterra wheels with 235/75/15 all terrain tires
9" touch screen audio system with bluetooth, backup camera, apple carplay/android auto
two 4" door speakers, so now i have a 3 speaker audio system
Coolant reservoir/return tank
custom tow hitch
future possible plans: Ka24de swap or Qr25de swap, maybe turbo, regearing the differential (after more horse power)
some valuable resources:
i use this website that has factory part numbers: https://www.partsouq.com/
used parts: https://autoparts.beforward.jp/
Atlas1.JPG
That's a cool rig! Nice projectSeed2Leaf wrote: ↑Mon Feb 19, 2024 9:17 pmMy obsession continues. It's been a while since I posted and well, I bought another F23 double cab chassis. The plan for this one will also be a KA24DET but we're likely going to use a cd009 adapter kit meshed to an automatic transmission out of a 350z.
I picked up a dulley unit and didn't realize I was looking at 12" skinny rims that are next to impossible to find tires for and a bolt pattern that makes rim shopping difficult. We opted to take a 7.625 rear end with a 4.10 gear ratio diff out of a 95 blazer ($300CAD) and throw a used set of 18" gram lights and some Yokohama Geolander ATs ($1000CAD) and a wildwood brake kit ($1400 CAD).
We added an extra leaf to hold the weight and duplicated our aluminum box setup. I feel like the extra leaf means my front end suspension now needs a 2" lift. Sounds like that will require some custom spindles. Not sure yet how this will be done. It's not super necessary but it would level things out.
7.625 - we're only tuning to 275hp. Which is plenty for this truck. I found this link for instructions on how to beef up the rear axle the best a person can. https://www.thirdgen.org/beefinguprear/. Also, we're not drag racing and dropping clutches so it should be able to manage fine. The build has to keep us under 3,000kg unloaded because our highway restrictions are 4,500kg anything after that and we're consider commercial vehicles and have to do drivers logs, inspections and headaches. Throwing a ford 9 inch in just doesn't make sense.
Pictures below...
You can upload the file to a free file hosting site, then post a link here.
Very interesting build! These truck 100% need boost or displacement. interesting to see your gas mileage... Why did you go with QR25DE? versus an RB25, SR20 or KA24DE?ka24e510 wrote: ↑Tue Apr 09, 2024 7:33 pmSo, I've been a busy boy.
New mods: QR25DE engine swap including auto trans from a 2018 Frontier, runs perfect. I rewired the factory harness, Ecm, Tcm, Bcm, and have an OBD II connector for diagnostic.
Regeared rear differential (ring and pinion) 3.90 ratio, was 5.86 ratio. Now I am at 3000 rpm at 75mph.
Digital/GPS speedometer/odometer.
Maybe I should have taken more pics of the process, but I can take some and post some here in the near future.