Jump to content
SAU Community

Recommended Posts

Depends, has your bottom end been blue printed?

And was your block diamond honed?

If both are yes, you dont need to run it in. by the time you've driven it to dyno, its run in. I am using redline 15/50 in mine. it'll do a few hundred kms then ill dump it. (into old work ute)

However if its been done with a stone, yep mineral oil will be the go

Link to comment
https://www.sau.com.au/forums/topic/388436-running-in-oil/#findComment-6190843
Share on other sites

Im using it for 1000kms... prob less. My engine is blue printed and diamond honed. no run in. i will take it easy on it for a bit though. When you spend 20k on an engine why save a hundred bucks on using shit oil... If your block is'nt diamond honed then yes use mineral and run it in. And a good mineral at that. teehee.gif

Link to comment
https://www.sau.com.au/forums/topic/388436-running-in-oil/#findComment-6190950
Share on other sites

honed with either diamond or grit based stones are irrelivant for this topic,

if the bores have been followed with plateu stones or a bottle brush hone, then THAT will reduce the wear in time as well as remove any roughness and folded metals in the cross hatch. Diamond stones wear slower during the machining process and in the long run are cheaper for the machinist, (i.e grit stones do 30 bores and diamond stones do 200 bores) plus its easier for them as they dont have to try to compensate by minipulating the honing procedure, if they are using unevenly worn stones. Only benifit of a 325-500 grit diamond stone over a 400-600 grit based stones is the diamond leaves a slightly better RA rating

but yeah + 1 to mineral oils at first

Link to comment
https://www.sau.com.au/forums/topic/388436-running-in-oil/#findComment-6191037
Share on other sites

always run a motor in reasonably hard (ie about 50-70% load with little or no boost), up to about 70% of max revs. And never let the motor idle or run at the same revs for a long time.

The days of doing 5000klm on 10% throttle are long gone. Tolerances on a modern motor are much tighter and more accurate, and everything is over very quick.

Personally I:

1. Unplug the CAS, and crank on the starter until there is some oil pressure

2. Run the motor at idle until the thermostat opens. Check there are no water leaks. About 5 min.

3. Drive it to a dyno and run it in for 100klm, or do 200ish klm on the road. Run it at medium load with no boost, regularly varying revs.

4. Drop the oil and change the filter, this removes 90% of anything you missed in the cleaning.

5. Run another 1000-4000klm on mineral oil depending on if it's a race or street motor (change the race motor to synthetic earlier).

6. Compression test. Be happy about the results. Enjoy

Link to comment
https://www.sau.com.au/forums/topic/388436-running-in-oil/#findComment-6191126
Share on other sites

Im just curious. How do you load up the engine to 70% with no boost?

Light throttle and extend the revs between changes.

As an example go redline 1st gear and keep it off boost, you will find its far from impossible and is extremely good for pissing off people giving you hoon pinkys for having a 'loud muffler'.

Link to comment
https://www.sau.com.au/forums/topic/388436-running-in-oil/#findComment-6193545
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Welcome to Skyline ownership. Yes, it is entirely possible parts websites get things wrong. There's a whole world of inaccuracies out there when it comes to R34 stuff (and probably 33 and 32). Lots of things that are 'just bolt on, entirely interchangable' aren't. Even between S1 and S2 R34's. Yes they have a GTT item supposedly being 296mm. This is incorrect. I would call whoever you got them from and return them and let them know the GTT actually uses 310mm rotors. Depending on where you got them from your experience and success will obviously vary.
    • Hi...a bit a "development" on the brakes. I spoke to the guys where i get brakes from...and they are saying that 296mm EBC are for R34 GT-T. I then went to their site: https://www.ebcbrakes.com/vehicle/uk-row/NISSAN/Skyline (R34)/ and search for my car(R34 GT 1998 - it has GTT brakes) and it show me this USR1229 number and they are rly 296mm rotors... So now iam rly confused... The rotors i have now on the car are 310mm asi shown... So where is the problem? Does the whole EBC got it wrong or my calipers are just...idk know what?  
    • Oh What the hell, I used to get a "are you sure you want to reply, this thread is XX months old" message. Maybe a software update remove that. My bad.
    • This is a recipe for disaster* Note: Disaster is relative. The thing that often gets lost in threads like this is what is considered acceptable poke and compromise between what one person considers 'good' looks and what someone else does. The quoted specs would sit absurdly outside the guards with the spacers mentioned and need  REALLY thin tyres and a LOT of camber AND rolling the guards to fit. Some people love this. Some people consider this a ruined car. One thing is for certain though, rolling the guards is pretty much mandatory for any 'good' fitment (of either variety). It is often the difference between any fitment remotely close to the guards. "Not to mention the rears were like a mm from hitting the coilovers." I have a question though - This spec is VERY close to what I was planning to buy relative to the inboard suspension - I have an offset measuring tool on the way to confirm it. When you say "like a mm" do you mean literally 1mm? Or 2mm? Cause that's enough clearance for me in the rear :p I actually found the more limiting factor ISNT the coilover but the actual suspension arms. Did you take a look at how close those were?
    • @GTSBoy yeah sorry i know thery are known for colors bud those DBA are too in colors 🙂 Green will be good enough for me  
×
×
  • Create New...