R33 Gts-T Series 2 / Knock Knock Who's There ^_^ 33 Rebuilding

[RB_purr]

Hey guys please enlighten me there are so many things scattered throughout SAU about engine rebuilds and bottom end bearings failing but they all seem to end in people arguing about whose kettle is better than their toaster and mass amounts of cursing haha

Vehicle: Nissan Skyline R33 GTS-T Series 2 (96)

ODO: 130,000

Modifications:

FMIC
Splitfire packs

Apexi pod filter with cold air intake
Full 3" exhaust with hi flo woven cat and split dump and resonator removed

Stock turbo running 14psi@185kw with turbosmart boost tee

Apexi power fc tuned today (Thanks chiptorque!)

Apart from that things are pretty much stock until my bank account says so otherwise haha

Anyway the matter of the topic is that i just had the power fc installed today and the boost wound up a little but apparently the tuner can hear some bottom end bearing noise which i cannot hear but apparently is there. I am yet to have any knock checked properly with the right equipment just to be sure of any problems

My 3 options are

New engine
Motor rebuild
or fetch me a prius and some AA batteries

Im not liking the idea of a new motor especially when 95% of them are second hand and if you can find a new one then you will have to start chopping limbs off to afford them ha

For now i have my mindset on a rebuild but i have never come to the stage of needing to rebuild a motor on any of my cars now i have heard of rebuild kits such as this one http://www.spoolimports.com/spool-engine-rebuild-kits/nissan-rb25det-rebuild-kit

The kit consists of

• SPOOL Forged H Beam Conrods
• CP or Ross Forged Pistons (Rings, Pins and Locks Included)
• Cometic MLS Head Gasket
• ACL Race Series Main Bearings - STD & 0.25mm
• ACL Race Series Big End Bearings - STD & 0.25mm

So the question is.. Is a rebuild kit like the one above going to solve my problems? yes it a pricey process but hey thats the 4 wheeled money pot i guess

Anyone with some helpful advice i would greatly appreciated

[StevenCJR31]

Get a second opinion on the bottom end noise (if it actually exists) and go from there

[gtr jet]

I'm with Steven. Go and get a second opinion.

[RB_purr]

Get a second opinion on the bottom end noise (if it actually exists) and go from there

I agree with both of you off to go get a proper check done in about an hour

[gtr jet]

Who are you getting your second check from if you don't mind me asking?

[RB_purr]

Who are you getting your second check from if you don't mind me asking?

Redline EFI its the mechanic i always use never had dramas with them and always do what needs doing properly first time every time

So i just took the car to have the noise checked out using a piece of equipment which im unsure of the technical term for it as i have never seen or used one but it was a snap on amplifier that connected to different sections throughout the motor using about 6 or 8 clamps that were clipped onto the turbo engine mounts manifold etc and you put a set of headphones on and had a listen and good news it was top end noise and cam bearings was the big bad wolf so its safe to say im happy with that as the bottom end was almost silent as a pose to the cam noise

Anyway now the problem has been pinpointed tomie poncams and tomei cam gear are sounding like the goods and of course cam bearings but the question is where can i get cam bearings for an RB25DET i know tomei poncams and gears are not hard to come by just wanted to check in with people on the forum as to whether tomei poncams and gears are the go and also where to find camshaft bearings

Cheers guys!

[gtr jet]

If you aren't planning on making too much power in the future I'd just leave the standard cams. I'm not too sure if cam gears are a benefit with RB25's. A couple of minutes research on here should tell you that though.

I'd just take the head to a recondition joint that you trust and have them go over it. It will cost a bit though. Depending on what needs to be done it's generally around the $1000 mark.

[RB_purr]

If you aren't planning on making too much power in the future I'd just leave the standard cams. I'm not too sure if cam gears are a benefit with RB25's. A couple of minutes research on here should tell you that though.

I'd just take the head to a recondition joint that you trust and have them go over it. It will cost a bit though. Depending on what needs to be done it's generally around the $1000 mark.

i do plan on making bigger power further down the track but im big on making sure the engine has good starting grounds before it starts having mass amounts of power thrown through it..

if they are changing bearings it wouldnt hurt to throw a set of poncams in while theyre at it because i have seen some good things about them not neccessarily power gains but the way the power delivers itself through the rev range etc..

Question is though what type of poncams do i get there types with certain lift etc.. but i dont want to have that all adjusted and worry about valve springs and stuff i just want a drop in set

oh cars why u do this!

Cheers gents

[gtr jet]

I'm not too certain about RB25 heads but if you stick with the smaller sized poncams you can retain the standard valve gear if it is in good nick.

I'd be having a bit of a read through the RB25 threads and see what head work will suit your goal.

[Ben C34]

There are no cam bearings. They run in the head. So it would be a case of head off to repair the damage.

[Ben C34]

And as you plan on making big power, I wouldn't do it with that engine. Cam wear is a sign of neglect. Might as well thrash it while saving for a full rebuild or throw in a good nic neo.