Jump to content
SAU Community

Mini Overhaul Of My R33 - Gone Wrong :(

SkudR33

By SkudR33,
in Engines & Forced Induction

 Share

Recommended Posts

SkudR33 Proficient

SkudR33

Posted
Posted

Hey guys,

Spent the last 3 months doing a few things to my rb25det and it just died in the ass today. 6th cylinder is letting oil by the piston rings and i think it sounds like it is developing some nasty piston slap!

My list of works completed:

- Reconditioned head, replaced valve seals and replaced valve springs with Supatech valve springs.

- Installed Cometic MLS Headgasket and ARP head studs.

- Installed 256 Camtech cam shafts and 2 adjustable tomei cam gears.

- Rebuilt my turbo at GCG and got it high flowed (stage 2 - with ball bearings, rated @500hp).

- Installed Five-O 660cc injectors (red plug).

- Replaced all gaskets for the top end of the motor.

- Installed JJR Bellmouth dump pipe.

I put it all back together and was able to tune the car upto 8.2 psi and got a nice 184rwkw before all the fun was over.

Even though it didn't work out the best I still had a lot of fun putting it all together and going through the whole project.

What you guys think I should do? Give in and sell it? Rebuild the bottom end? Or just buy a replacement bottom end of a second hand motor?

Ps: thanks to anybody who helped me and answered my questions on this forum - have to admit I did a lot of reading here and learnt a lot about my car!

Link to comment
https://www.sau.com.au/forums/topic/434278-mini-overhaul-of-my-r33-gone-wrong/
Share on other sites
SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

seems like you have kesh......

go forged and stroked rb 30 bottom end. bolt all your shit up and see what you get. then change parts as they start limiting you!

Hahaha let's just say I had cash!

That would cost me like 15k :(

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

cheapest and easiest option. just get a second hand motor, plenty of guys running 300rwkw+ on standard motors.

if you have the time id pull the engine out and see whats gone wrong.

I was thinking along the lines of getting a replacement bottom end and throwing it in... Just worried about the quality of wreckers.

Wish I had the time right now to rip it apart and see the damage!

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

buy another stock bottom end for couple of hundred bucks e85 these days 350kw is safe with it no need to waste money building.

Exactly what I was thinking but here's the issue - who's gunna split their perfectly fine motor to give you a bottom end.

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

Buy a complete running engine, there will be heaps available. This way you aren't up for a top overhaul gasket set and you can do compression/leak down tests. You can't do that with just a bottom end and some questionable build story.

Might give it a try - found an engine for 950$. Hope I don't spend another 2 months doing this for no good result :)

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

what was the compression of the motor you bought?

It was the motor in my car - did a compression test last Sept and had decent results (can't remember exact numbers). The reason it buckled is because it misfired as a result of bad coil packs... Even though I got the misfire fixed, the damage to the motor was already done.

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

+1 second hand/import motor, not 2 months, chuck it in this weekend :P , plus might be hard to get a tune around xmas

I wish I could afford it to be honest - need to work atleast 2-3 weeks before I have another crack at it!

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

faaark!!...all that work for 184kws...i think i would of set fire to it there and then....I put a 5$ bleed tap from bunnings on my stock car with an exhaust and it made 185kw...

what computer you running?

I think you may have misread my post - the engine shat itself and the best reading I received was 184rwkw at 8.2psi. I was planning on running it at 20psi which would of given me roughly 300rwkw. :)

My car now runs at 0rwkw and pours out an awesome smoke show from the tail pipe ;).

PS: Running a microtech.

SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

I just realised - I originally made that post on Tapatalk with paragraphing (and bullets) and when I looked at it on the PC it looks like one massive blob of a post with no structure... thats odd :(

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kinkstaah
      MLR's Bogan cruise ship

      By Kinkstaah · Posted

      Yep, that was one of the things we learned fast in the past with our MX5. When you drive with the top down, you are effectively standing out in the sun, 100% of the time, and not getting in any shade (because roads aren't shaded generally!). Just like standing out in the middle of a field on a sunny 27C day is a bit of a bad plan, so is sitting in a MX5 without sun protection.
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      I also just ordered some Frankenstein bolts and side mounts to fit a hard top Just in case I do find one, basically so it doesn't need to be fixed to the car with only the front latch.......and then gaffa tape to keep it in place for the RTN journey from wherever I get it
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      If your temps are fine now, you probably won't have any issues with where your vents are as they don't look right up at the windscreens high pressure area, so any differences when giving it the beans for extended happy laps would be minimal, but, they should vent heaps when stuck in traffic  Much like how that reverse cowl on my SS let "visible" heat out when stationary, but, because it was basically at the windscreen my coolant temps on the Hwy actually raised because air was being fed into it at speed (110kph), to only come back down to around 90° when I got off the Hwy And your 100% correct about the NC currently not needing vents, but, if I was to add a turbo, and a oil cooler and intercooler in front of the condenserand radiator, and then take it to the track???? It is apparently a recommend requirement if I don't want to worry about coolant or oil temp issues, but, any of the above are possible scenarios, over time As it sits now, with the triple pass radiator and stock air conditioning system, I have absolutely no issues with either temps or air conditioning efficiency, I've been basically daily driving thie car for the last month, both on the Hwy, and peak hour, bumper to bumper traffic, but, that's pretty much expected from basically a standard engine  Talking about no issues daily driving, it was 39° the other day and I was sitting in bumper to bumper traffic on the M5 and then M7, with the top down, and with the air conditioning blowing nice cold air on my feet, balls, and face, well, there was one issue, my head and arms got pretty sun burnt Note to self: leave a hat and sunscreen in the car for such days 🤣
    • sonicii
      Mechanic in Victoria

      By sonicii · Posted

      I would agree, unless you need something specific to the HV motor/battery side repaired or investigated, any mechanic will be able to perform normal services, but if you prefer, maybe look for a mechanic who regularly services/repairs Nissans, the VQ engines are pretty common in the Nissan lineup.  Sorry, I can't make any suggestions, I don't live in Vic.
    • GTSBoy
      R32 GTR clutch master cylinder adapters

      By GTSBoy · Posted

      Some of them keep working fine. 9 out of 10 of them end up causing an absolute misery bleeding the system and get thrown on the workshop floor in a tantrum and never thought about again because they were never really needed and just added crap to the car that we could have done without. Same-same with HICAS, A-LSD, and various other stupidities that over eager 10x engineers thought we had to have.
×
×
  • Create New...