Jump to content
SAU Community

Recommended Posts

  • 9 years later...

Thread revival, apologies!

I have a similar issue, strange noise that appears shortly after starting the car, fluctuates a bit with RPM... If you bring the revs up the noise sort of follows / trails behind and then settles if that makes sense?

Engine was built years ago with CAMTECH 268 Cams (9mm lift i believe) and the rest of the upgrade kit with the springs and retainers.

Can you upgrade the pulley itself, if the spring is too weak (same as on the VG30 Lumps) or is it pointing towards another issue?

 

Cheers!

  • 3 weeks later...

Got them measured (better late than never) 

They seem to be the "wrong way around" IE Tighter on inlet and slacker on exhaust which I believe is actually the opposite to the norm on an RB? They're not perfect but am I right in saying they're not horrendous? I can't find the specs to suit the exact camtech cams anymore so using OEM and Other aftermarket specs they don't seem bad?

Put a video on to show. Using a stethoscope the noise doesn't seem to be focused around one area.

 

Worth noting the car has probably done 6000miles like this and it's never ever changed nor struggled to make power etc.

I'm a bit stumped!

 

IMG20241025195733.jpg

Those numbers aren't terrible.

Another question, do you have an aluminium plenum? You could just be hearing the solid head a bit more because of that.

I know when I went from the stock intake manifold to an aftermarket intake manifold/plenum, everything became louder.

Injectors, lifters, became more audible.

11 hours ago, GTSBoy said:

Doesn't seem like it should cause them to be too noisy. Circa 0.4 is on the wider end of the range though. You can probably target more like 0.3 on the inlets.

Yeah that's exactly my thoughts but I'm far from an expert. Video didn't upload so will get it on YouTube and share the link. Thanks mate.

10 hours ago, Dose Pipe Sutututu said:

Those numbers aren't terrible.

Another question, do you have an aluminium plenum? You could just be hearing the solid head a bit more because of that.

I know when I went from the stock intake manifold to an aftermarket intake manifold/plenum, everything became louder.

Injectors, lifters, became more audible.

Yeah as above really they're not horrible numbers are they! 

And it's on a greddy inlet. Has ID1050x that are quite noisy but tbh it did this on the older injectors. Lots of noise comes from the injector rail too.

56 minutes ago, Toff said:

Thanks for that, it actually sounds fine to me.

What oil weight are you running and what kind of oil pressure do you see around idle RPM and a bit over it?

I'm going to vote for considering going to the effort to close the lash down to the minimum. My bro-in-law got around to checking the clearances on the 3SGE in his Caldina. Was a bit fat all over. New shims at lowest allowable lash, and the car is remarkably better to drive. It appears that the increase in both total lift and duration that you get from doing this is worth a lot more than you might expect.

I have been having evil (and expensive and time consuming) thoughts about doing it to mine, and I don't even think I have a problem. Not that I'd know, though.

On 10/26/2024 at 1:01 PM, Dose Pipe Sutututu said:

Thanks for that, it actually sounds fine to me.

What oil weight are you running and what kind of oil pressure do you see around idle RPM and a bit over it?

Yeah most people that have heard it said it was fine but it's always had me slightly worried.

Oil pressure I can't remember off the top of my head but it has plenty, I run 10w60

On 10/26/2024 at 1:04 PM, GTSBoy said:

I'm going to vote for considering going to the effort to close the lash down to the minimum. My bro-in-law got around to checking the clearances on the 3SGE in his Caldina. Was a bit fat all over. New shims at lowest allowable lash, and the car is remarkably better to drive. It appears that the increase in both total lift and duration that you get from doing this is worth a lot more than you might expect.

I have been having evil (and expensive and time consuming) thoughts about doing it to mine, and I don't even think I have a problem. Not that I'd know, though.

You're probably right mate, best get ordering some shims!

Guessing Nissan is the best place for them?

7 hours ago, Toff said:

Guessing Nissan is the best place for them?

I dunno. Maybe. There's a crowd here in Oz called Precision Shims that I'd probably look to first. Although NIssan might be surprisingly cheap enough.

Trouble with the process is you have to take all the existing shims out to measure them to know what you need to order.

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

    • Join SAU NSW for a flame-grilled feed & flame-spitting cruise! Sunday 17th August 2025 3:30PM Meeting Archies Flame Grille Sylvania Waters 4:45PM Cruise Departure 5:15PM Arrival at Cape Solander Kurnell Meet Location: Archies Flame Grille Final Destination: Cape Solander Kurnell *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
×
×
  • Create New...