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M35.Groot

2002 M35 250 RS Questions .

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Hi all first post so be gentle .

I have just acquired a 2002 250RS Turbo with 185,000 K's on it .

The car is bone stock apart from a blow off valve .

The car has the self closing tail gate [ an option I believe ] the pop up screen with Nav , no reversing camera and it has Hicas .

I have done a bit of reading [ mostly on here so thank you SAU ] and I have a list of things to get done .

1: unplug the Hicas at the back and then remove the warning bulb from the cluster .

As an add on to this I currently have no cracking in the rear at all and would like to keep it like that and it seems Hicas cars are more prone to it .

2:Fresh new full synthetic oil and filter , going to run a 10/40 and also have a Z179A filter which is bigger than the tiny Z436 so we will see if it fits as I have both .

I intend to see how quickly the oil darkens to decide how long I will run it , hoping to get 8000K's .

Not going to mention what brand as do not want to start an oil brand debate !!

Again from what I have read I have a mods list of must do things , I will be going through and doing all the fluids starting with the engine oil and filter today .

Intending to do the three banjo bolt mods as doing oil change anyway including dropping the sump to do the internal sump banjo bolts , it looks like the sump can be dropped without having to lift the engine...I hope .

Going to have a shot both ways and will drill it out to 2 mm , it seems that 3 mm might be a step too far .

It seems an engine oil cooler is a must .

I have a really nice ex V8 supercars cooler which will do just nicely !!

Any recommendations on brand of sandwich plate  ?

Also a transmission cooler is a must as well it seems and will do a flush and fill with Nulon full Synthetic .

Also on the list is one of Mr Star Treks coolant tap thingies , is he still in action ?

And also along those lines I will be trying to get a spare stock turbo to have it tickled by Mr Star Trek and have it ready to go , the car has done 185,000 K's and from what I can tell the turbo is fine .

This looks like being a bit exceptional as turbos fail normally sooner than that ???

I have already obtained a 350Z mid pipe so will be crawling under to make sure it swaps in as I have been led to believe ??

Will do a tail pipe at some time in the future but the intent is to keep mods mild .

I believe one part of the exhaust is quite restrictive so would like to know more about this.

My pol's for the long post but on a search for knowledge and please let me know if I've got anything not quite right !!

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Welcome to the group!!!

The 350Z midpipe will be too short so you will need to weld on/bolt on an extension... It is the V35 Skyline 350GT Coupe that is a direct fit. The V35 sedan has the same massive unit that the M35 has so that is a no go...

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If you want to disable the HiCas I think you need to do more than just pull the bulb. Something along the lines of a HiCas removal  kit or suchlike but I am not familiar with M35s.

Not sure you need an engine oil cooler but if you fit a trans oil cooler and leave it plumbed through the radiator that will provide a little extra cooling. If you do fit an engine oil cooler make sure your sandwich plate has a thermostat in it so your engine doesn't run cold all the time on short trips.

Unless you are in a really hot environment 5W 40 would be better. The weak spot of the VQ25 seems to be timing chain failure at about 200,000km and replacement is a massive job. I don't know how you prevent it but regular oil changes which you have planned should help.

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Word , meant to say V35 mid pipe !!

Yep found out about the chain thing after a bought it...would still have bought it .

Chains are meant to be life of engine , why Nissan M35 only go 200,000 or so ?

Not worried about the job , used to run 2 x S3 RX7's with which I did all my own engine , gearbox and diff rebuilds .

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