Nissan Atlas / Cabstar

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Seed2Leaf
Posts: 5
Joined: Wed Apr 29, 2020 10:21 am
Car: 1992 Nissan Atlas F23

Nissan Atlas / Cabstar

Postby Seed2Leaf » Sat May 16, 2020 8:26 pm

I noticed NICOclub doesn't have a section under Nissan for the JDM Nissan Atlas and Cabstar. I am currently using these for my business and thought I could gather some resources and possibly attract a larger group to assist me in posting information about these amazing trucks!

A little information about my F23 Chassis.
Original Specs:
Engine: NA16 (https://en.wikipedia.org/wiki/Nissan_NA_engine)
Transmission:
Model: Double Cab F23 Chassis

Project Plans
This week it will be going in for a full swap KA24DET with Haltech E6X standalone.
CP Pistons, Manley H Rods, over sized valves, GX2860 T3 Turbo with ISR Manifold.

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AZhitman
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Re: Nissan Atlas / Cabstar

Postby AZhitman » Sun May 17, 2020 10:32 pm

THAT is way too cool! A KA-T in that will be spectacular! Tell us more!

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Rogue One
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Car: 2011 Nissan Rogue SL
2012 Nissan Rogue SL
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Re: Nissan Atlas / Cabstar

Postby Rogue One » Mon May 18, 2020 7:09 am

I found this, but it's written in Cyrillic.
Nissan Atlas, Condor 1984-1996 Service Repair Manual.pdf

Seed2Leaf
Posts: 5
Joined: Wed Apr 29, 2020 10:21 am
Car: 1992 Nissan Atlas F23

Re: Nissan Atlas / Cabstar

Postby Seed2Leaf » Wed May 20, 2020 2:29 pm

Thanks @Rogue One for posting that. I had a copy as well, no luck finding an english version.
The truck was produced with a number of engine variations. The reason I went with a KA24DE-T was because the vehicle was originally offered with a KA20DE which was also a engine offering in the D21. My thoughts are the KA20DE and KA24DE share the same KA block and the variation was bore, etc. Therefore the KA24DE should mount in the engine bay. (More on that to come!)

The F23 Chassis was offered in the 100 and 150. (1 ton and 1.5 ton) and I chose the 100 series because up here in Canada we have a 4500kg road restriction. After 4500kgs GVWR you have to pull in to scales and report all driving hours and inspections. A process that more often than not resulted some type of "deficiency". Cargo/Tank remained at 1,000L so 1,400kgs cargo was fixed leaving me with 3,100kgs maximum curb weight.

Factory Power: The 1,600cc gasoline engine had 76 horsepower, the 2,000cc gasoline engine with 91 horsepower, the 2,300cc diesel engine with 76 horsepower, and the 2,700cc diesel engine with 85 horsepower (net value) were made available. The 5-speed manual and 4-speed automatic transmissions were made available to be combined with the engines.

Thoughts: Driving this unit with 76 horse stock makes highway travel near impossible. Max WOT is 124km/h and it didn't take long before I was dealing with a blown head as a result. Engines aren't made to travel 400-600kms at WOT especially with the poor air flow of a cab over. Our goal with the KA24DET will be 300hp.

Seed2Leaf
Posts: 5
Joined: Wed Apr 29, 2020 10:21 am
Car: 1992 Nissan Atlas F23

Re: Nissan Atlas / Cabstar

Postby Seed2Leaf » Tue Jan 12, 2021 10:19 pm

Update on my Nissan Atlas build!
The engine mounted well. With ample room for the turbo manifold.
We needed to get a Cablecraft system designed from California Push-Pull as we wanted to keep using the 240sx transmission. The original transmission had a clever side shift mechanism but I wanted to make sure the entire drivetrain is eventually converted to North American spec so parts can be easily sourced.

Build Details:
Camshaft - Brian Crower Stage 2 Camshafts
Crankshaft - King Main and Rod Bearings
Pistons - CP Pistons, Manley Rods
Fuel - Radium Top Feed Fuel Rail Conversion, ID 1050X Fuel Injectors, Radium Direct Mount Fuel Pressure Regulator
Exhaust - ISR Performance V2 Tubular Exhaust Turbo Manifold
ECU - Haltech E6X
Turbo - Garrett GTX3076r 0.63


Check out my Seed 2 Leaf Environmental blog post ->
https://seed2leaf.com/improving-our-ser ... xpertise/

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sabaody05
Posts: 9
Joined: Mon Apr 26, 2021 7:52 pm
Car: 2017 Nissan Titan

Re: Nissan Atlas / Cabstar

Postby sabaody05 » Sun May 02, 2021 6:47 pm

Interesting stuff you have there. Any update regarding your truck build?

Seed2Leaf
Posts: 5
Joined: Wed Apr 29, 2020 10:21 am
Car: 1992 Nissan Atlas F23

Re: Nissan Atlas / Cabstar

Postby Seed2Leaf » Sun May 02, 2021 11:21 pm

Hey @sadbaody05 the biggest road bump we had along the way was the transmission shifter for a cab-over. The original transmission had a linkage conversion system that allowed the shifter to pull and push from the side. With the FS5W71C at the back of the KA24DET I didn't want to opt for adapting the original transmission for a number of reasons. Parts availability being the most important and I didn't trust it to hold the horsepower were planning to put down.

Originally I thought this cable driven shifter system from Cablecraft appeared to be the answer to my problems. $1,500 USD later we realized it was a monster and came with complete lack of engineering for our application. It's almost the same size as the transmission itself, didn't mate to anything and would require fabricated adapters to shift with almost no wiggle room on clearance.

We went back the the drawing board and had the shop fabricate a linkage system to work the same as what was on the original transmission.

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Video of the shifter test:
http://qms.seed2leaf.com/wp-content/upl ... 276807.mp4

Should hit the dyno next week to tune the Haltech Elite 500. (Decided to ditch the old tech and invest in a new Haltech)

Seed2Leaf
Posts: 5
Joined: Wed Apr 29, 2020 10:21 am
Car: 1992 Nissan Atlas F23

Re: Nissan Atlas / Cabstar

Postby Seed2Leaf » Wed May 05, 2021 9:45 pm

Correction: we went with the Haltech Elite 750 series.


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