Jump to content
SAU Community

Recommended Posts

a miss is like a hesitation in the acceleration, pinging is very hard to hear....you see experienced dyno operators with earphones to the engine block to detect it. Some ppl say they can hear pinging...some say you can't....

As I posted earlier I think its much more likely you just have some sort of missfire.

I had a friend who knew about cars come round, and I got him to passenger as I 'spiritedely' drove it.

I gave it quite a bootful, and it went as smooth as a baby's bottom and still boosted to around 0.7 Bar. No noise nothing, so I'm stumped now, it ran better then ever and knew straight away it didnt feel like my line when it was stock.

Perhaps it was some other noise which cleared out.... i'm just glad it doesnt make the noise any more :mad:

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

    • Been a long time since r31 got some love, my brother dropped a shitbox ls1 crapadore in my lap to fix up.  Put a wiper motor in as the flooded one was no longer alive.  got windscreen wipers now. Time to clean respray and install back in the titanic  IMG_0505.mov
    • Nah its a server spammer thing  Although, now that I manually approve all the accounts I can probably loosen up some of the restrictions.  
    • Thread bump, again! Although, no bad news this time. Posting for the sake of possible root cause. Basically, I rebuilt it (mostly stock), installed Haltech + sensors, had it running fine on new ECU.  Still not really understanding why it cracked pistons last time. Got to tuners, and while checking timing, noticed +-10deg of timing scatter while revving. Changed CAS, and it was rock solid. While not definitive, can't imagine seeing 20+ psi with that amount of scatter would be a good thing. Also glad I found something.   Bit more of a run down; Carried out a stock rebuild, a set of stock pistons, out of a spare bottom end. Everything stock apart from head studs and oil restrictors. (so I can pretend I didn't let the Nissan out, ha.) Armed with the measuring gear and FSM, set about doing overhaul. Oil restrictors as per oil control thread for a RB25, stock oil pump, drifting. Head drain/vent from rear of head, to passenger side of sump above oil level. Two dash 10 vent lines from drivers side of sump (unused atm) Hi octane style cam cover breather kit Splash covers over last 2 cam caps. Both breather lines from cam covers to vented to atmosphere catch can, not plumbed back into sump (wanted to see what it was actually breathing). Got it run in (did about a 1000km) no to low boost scenario, As I had questions over old ECU setup. Installed haltech +sensors for flex Retune on E85 (finding CAS Issue along the way), made 300rwkw at 20psi, out of wastegate. Did a drift day the next day (yes, it was a big weekend!) and was checking catch can throughout the day, ZERO blowby. I mean nothing. Lines from cam covers are not even wet. Done a bunch of street driving, spirited and catch can is still dry. Early days I guess, but pretty happy so far. Also now run 10w60, up from the 10w40 that I used to run. Oil pressure is significantly better, especially when hot (as you would expect)      
    • Thanks buddy. I thought it was a server storage thing. 🤣
×
×
  • Create New...