Hi Guys,
Thank you for reading, I hope someone can help me with four things:
1.Just ran in a full rebuilt RB30 engine, I noticed yesterday at startup the engine made this small knocking sound. Resembled a lifter sound (but i'm not sure), it came and it went... Anyone know what that is or should I worry about it?
2. I was never chasing big power, so I cut the spring on my wastegate, then the bloody thing leaked air So i ended up placing another spring and it held on 12psi. Would that be safe for stock VLT with T04? What is my limit?
3. If I don't warm up my car, the engine makes this small slapping noise. Is that because of liquid forged? Should I use thicker oil?
4. There are hundreds of engine oils on the market. I was considering synthetic, if synthetic does last me twice the kilometers or give me extraordinary protection then i guess its worth it, because it is twice the price of a standard oil.
If I go for a standard oil, any recommendations?
Thanks heaps for reading and recommendations.
Some original photos have not been recovered yet.
so was it a knocking sound or a ticking sound cause lifters tend to make ticking noises. In my old motor (which was stuffed) there was a knocking noise coming from in the engine when you free revved it from stuffed bearings.
I think 12 psi is fine (intercooled) or as long as it doesn't ping.
i dont have forged pistons but ive heard that until they get to operating temp you can get some piston slap.
I dont think there is anything wrong with synthetic in a new engine as long as you dont go a too thin viscosity.
Quote:
Originally Posted by .loz
isnt 12 psi a little high for a t04??
12 -15 is max for a t03
the most i run is 10psi, yet to get it on a dyno to get it raised safely.
IMO 12psi on a t04 is too high to run without safely checking AFRs, however every setup is differnt
Cool thanks.
I ran it in with some cheap gulf western stuff. Kinda find it hard to pay $70 bucks for oil unless it is really really worth it.
I ended up using shell plus 15-50 semi synthetic.
While changing my sparkies (NGK BK7), I also noticed the 6th sparkplug looked really lean compared to the rest. Would this be a head gasket or injector?
Quote:
Originally Posted by vl_gigalo
after its run in its ok isnt it???
yeh of course but i wouldnt use it any less then 4-5 months of running and driving say 5000 + kays
