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LS1/ T56 280Z questions


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I am finally getting back to working on my LS swap after 10 years of it sitting.

 

I initially installed my LS using John's Car's mounting kit several years ago. I have since put Austin Hoke's mount kit in.

 

My original Sanderson shorty headers would need mods to work and I'm looking at Hawk's and CX racing long tubes. Leaning towards the CX ones as they appear to fit tighter under the car and in the engine compartment. I realize they are smaller primaries, but I'm not worried about finding the last few horsepower.

 

I'm using a C&R 26 x 19 double pass rad with bar and plate oil cooler, does anyone know if I'll be able to route oil cooler lines between the block and headers? This would be very tight with the Sanderson's.

 

I'm pondering the Silvermine electric power steering kit. will it clear either Hawk's or CX? Read in a post that on a 280, the EPS hangs a bit below the dash, this may be an issue for me as I have a prosthetic left leg and with no ankle joint I have to deliberately put my foot higher on the clutch pedal.

 

Also looking for opinions on cooling fans, any idea how many CFM a LS would need? Running A/C, so there will be a condenser out front also.

The core is 22 inches wide, and looking at Spal catalogue it looks like I can just squeeze one 10 inch and one 11 inch fan on a custom shroud.

Combo would be well sealed to the rad support and ducting between the grill and support will be installed.

 

I'd like to run dual fans, so the trinary switch on the A/C will trigger the second fan. 

 

Thanks in advance for any ideas, opinions, and pictures, Martin.

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Congrats on Picking it back up! I would suggest you force libricate your engine again after sitting for 10 years.

 

I can't comment on the headers and electric PS - But I can comment on the Radiator Fan. 

In my talks with a Holley guru over on ls1tech he conviced me to go with a C7 Z06 radiator fan. When I purchased it it was $239 shipped. Its a 3000CFM at full tilt fan and is pretty massive. It has a built in shroud which with some trimming I made to fit on my core which was a universal GM core from eBay for $150...

The fan is a SPAL unit, with built in -PWM controller. All you need to do is get the proper plug kit for it as well as suitable size wiring (I used 8awg power and ground wire) 

 

Hope this helps! 

 

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