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R33 Rb25det Rebuild, Neo Conversion Or?

dyefuker
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dyefuker Enthusiast

dyefuker

Posted
Posted

Hey guys sure this gets asked all the time, but my much loved 1996 r33 gtst after nearly 250'000 kms (imported at 77'000) and 9 years of ownership has finaly said no more!

Developed a bottom end knock about a month ago, limped it to and from work as I had no other option!

removed and striped down my motor, found a near dead clutch, swolen and hard coolant lines, rear/front mains starting to weap,

Improved 2 piece turbo side engine mount :rolleyes: lol,

And then i got to the striping, Piston 5 big end bearing destroyed, metal all through the motor, bits stuck on other

bearings, bits in the oil pump, the oil pumps drive collar worn, as the same as the oil pump.

Oh and a cracked exhaust housing of my OP6 highflow.

The good, piston rings and bores are great for their age, valve train and head is mint.

So whats next? should i go with new seals, bearings, oil pump, piston rings, repair the crank oil pump drive? and obviousaly the external broken parts and be done with it?

Or should i source a second hand much lower km r33 rb25det?

or r34 rb25det neo and do a conversion? if so should i use a full loom and r34ecu? or bits and pieces of r33 and r34 electrics?

Or the most expensive option, get my bottom end built and forged?

Just after some advice here as im not exactly sure what path to follow, keeping in mind i want to keep this build as cheap as possible,

I was very happy with the responsive 221rwkw and 380nm it had for a solid 3 years before the bearing let go

Thanks for any advice given!

Cheers, Rob D.

dyefuker Enthusiast

dyefuker

Posted
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Posted

power does not concern me, but to have my 33 reliable for another 5 years or so would be sweet, with the neo, did you do a whole conversion with ecu and loom or a long motor swap out with 33 electrics?

iruvyouskyrine Grand Master

iruvyouskyrine

Posted
Posted

Not worth mucking around to put the neo in if you don't plan on wringing its neck to be honest. Easiest/cheapest option is buying another standard RB25 bare engine and putting all your bolt on on it and putting it back in the car. You can make some money back by selling your good condition head.

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