HOw does one close up the nipple on the thermostat? Weld it? Or is there another solution.

 

The nipple on the thermostat should be drilled out and tapped. Maybe 1/4" NPT?

 

So basically, from what ive gathered...to remove the oil warmer you would do this: (correct me if im wrong):

-run 2.5' of 5/16 heater hose from passenger side coolant pipe to the thermostat (disconnecting each side of the oil warmer in the process as well as the hardline, which require moving the AC compressor)

-undo the oil warmer (24mm bolt? i forget the size)

-buy a vq35hr oil filter stud and replace existing one

-attach sandwich plate like you would normally

Is that it? Pretty easy or am I missing something?

Thanks!

 

actually, it's a perfect size for a 3/8 NPT plug...just drill and tap.

 

I would remove the passenger side coolant pipe and have the fitting for the oil warmer removed and welded shut.....that's a better solution than running more hose in the car. oh and don't forget to drill and tap the thermostat nipple for a 3/8" NPT plug.

also, while you're at it, you probably want to remove the factory hard line that runs across the front of the motor for the warmer. to remove it, you need to unbolt the A/C compressor to gain acces to one of the bolts that holds the hardline to the block.

 

Rather than removing the thermostat, drilling and tapping for a plug, why not just create a 'T' and attach a short segment of hose? like this

 

rrmedix,

my point for doing this mod was to eliminate as much of the nissan "emissions" crap as possible. most of these hings are on this motor to improve "warmup" time so that nissan can achieve better emissions certifications.
I like to work on my car and the more stuff I can get rid of, the easier it is to work on.
your suggestion works if someone doesn't want to do a complete removal of the warmer circuit.

 

Quad, I understand. No Prob. Just trying to offer an alternative for those who are not as technically gifted as yourself to accomplish the same task without drilling or tapping. (A task which is rather mundane for folks like you and me)

 

so does one have to add an aftermarket sandwich plate to an aftermarket oil cooler? Or can one just screw the oil filter straight to the block?

 

you and i think alike.

 

by using the HR oil filter STUD, you can screw your filter right onto your block!!!!!

 

I have been running my setup like andrew for almost 8k miles no issues at all. I would suggest buying all the gaskets new when doing this as mine leaked the first time... It was less than $20 for all of them.

 

agreed.....I must give you props on coming up with lots of good ideas!!! I still have to to a small teardown so I can get to my turbos and run 3" inltes to my greddy turbos. I remember you posting up some pics about 3 years ago when you did it.

 

Great thread guys! I can't believe I never seen this. Thank you so much!

 

Subscribing for any "new" updates!!
Nice read...

 

If anyone is interested in the parts list:
Prices and parts #s from Courtesy Nissan

Passanger side coolant pipe
[14053M] PIPE-WATER
Product SKU: 21021-Z33002
Your Price: $49.05

Driver side coolant pipe
[14053MA] PIPE-WATER
Product SKU: 21022-Z33003
Your Price: $49.32

Driver side coolant pipe gasket
[13050N] GASKET-WATER INLET
Product SKU: 13050-Z33001
Your Price: $1.96

Thermostat gasket
[13050P] GASKET-WATER INLET
Product SKU: 13050-Z33003
Your Price: $3.58

350z HR engine Oil Filter Stud
[15213] STUD-OIL FILTER
Product SKU: 15213-31U00
Your Price: $6.83

 

i noticed that the people that have done this mod have powder coated the coolant pipes. Do you guys powder coat the interior of the pipes as well? Im just wondering if its ok for the welds to be exposed to the coolant... I know that the exterior needs to be coated, due to possible oxidation issues. But will oxidation occur on the interior?

 

just coated the exterior for looks.

 

is this the socket we need for the HR Oil Filter Stud?

http://buy1.snapon.com/catalog/item....re&dir=catalog

 

that's the one. you don't have to get a snap-on though. I did, but then nmost of my tools are snap-ons......didn't want an odd ball.