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Mini Overhaul Of My R33 - Gone Wrong :(

SkudR33

By SkudR33,
in Engines & Forced Induction

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Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

firstly you need to work out why the engine failed. because if you rebuild the engine the issue might still be there and carry on to give you the same result on the next engine. Engines dont break just for the hell of it.

I would be looking at your Five 0 injectors.... id be getting them flow tested and see if they are working correctly then move on from there.

just grab some cheap replacement cast pistons, you are only after 300kw so no need for forgies.

good luck,

SkudR33 Proficient

SkudR33

Posted
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Posted

firstly you need to work out why the engine failed. because if you rebuild the engine the issue might still be there and carry on to give you the same result on the next engine. Engines dont break just for the hell of it.

I would be looking at your Five 0 injectors.... id be getting them flow tested and see if they are working correctly then move on from there.

just grab some cheap replacement cast pistons, you are only after 300kw so no need for forgies.

good luck,

Strong piece of advice - thanks :)

I had the injectors flow tested at unique autosports and they said the spray pattern isn't too bad... Not the best but definitely nothing to worry about.

I guess before I decide what I need to buy, I'll rip the motor apart and inspect exactly what happened there.

I can tell you oil pressure was fine, there was still coolant in the radiator (and temperatures were perfectly normal). The only thing the dyno diagnostic thingy picked up at that point when the disaster struct was a misfire which dropped the afr from 12 to 10.

To throw a spanner in the works - prior to the beginning of my modifications, catch can clogged up and built crankcase pressure. This blew my turbo and from there I started the project. I'm thinking it must of f**ked the bottom end too and it didn't show up until the tuner started puttin some pressure on the motor!

Sucks to be me at the moment :P but I can't wait to get her back on the road (gunna be fun)!

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

yeah, well you could be right... you could have damaged a ring land and then when tuning it the damage could have got worse.

just make sure everything is okay on your next rebuild.... and 25 bottom ends are not that hard to find.. many people are doing twin cam rb30 conversions.

ARTZ Grand Master

ARTZ

Posted
Posted

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.

ahh I see...I totally misread it then....I really should stay away from this section after a few beers ...

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SkudR33 Proficient

SkudR33

Posted
  • Author
Posted

guys noticed something wierd - yeh one of the rings has gone dud but it only blows a little bit of smoke and increases when reving the car past the 6000rpm limit, however i parked the car on my driveway (which is an uphill) to wash it and then when i turned the car on, it poured out oily smoke from the exhaust for about 5 - 10 minutes and went away.

I've tried searching and spoke to my tuner, internet gave me nothing and my tuner said it might be a blocked drain in turbo or something... has anybody ever experienced this or got any useful comments to throw at me?

Thanks in advance :)

Blackkers Experienced

Blackkers

Posted
Posted

I've never heard of that happening but it would make sense if the engine is pumping oil into the turbo and it's not draining back.

getting the the oil return is fairly easy and although I feel like you won't find anything wrong with it; it may be worth just ruling it out.

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