Mini Overhaul Of My R33 - Gone Wrong :(

[SkudR33]

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!

[Plattsy]

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!

[SkudR33]

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

[Plattsy]

if you want cheap option..... get a second hand block.

or look around for a 30 bottom end that has been done....

[jamesdt]

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.

[SkudR33]

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!

[boostn0199]

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

[SkudR33]

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.

[jiffo]

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.

[SkudR33]

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

[AngryRB]

what was the compression of the motor you bought?

[WMDC35]

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

[SkudR33]

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]

+1 second hand/import motor, not 2 months, chuck it in this weekend , 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!

[Adriano]

Missfire wont be the cause of your engine damage

[LTHLRB]

another +1 for a 2nd hand motor. did the same thing with my 33 and its been going for almost 6yrs and im just about to put more power through it. bang for buck

[SkudR33]

Missfire wont be the cause of your engine damage

The engine must of been on its last leg and then the misfire topped it off...

[ARTZ]

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?

[SkudR33]

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]

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