Jonahs33Liner

BUMP

Still looking for an rb30 bottom end, dont mind spending a few thou for one already together or if someone has all the parts but hasnt assembled yet?

Still looking for a turbo..

No turbos for sale? Will go for a Gt4294R if anyones got one

No rb30 blocks for sale anywhere? Anyone know of a place that builds them for a half decent price?

BUMP

BUMP

Just pulled the old rb25 bottom end off my rb25det due to putting a conrod through the side of the block, scrapping the 25 block and chasing an rb30 bottom end to put back in it! Was a lag monster before so this will give me the bottom end torque i need as turbo is also being upgraded! Dont mind spending the extra $$ on an already built bottom end to suit 25/30 set up, if anyone knows of any please let me know asap

BUMP

I've just finished rebuilding my 25/30 set up, was running a t04z before not settling for anything other than a GTX4294R to go back in it, it'll be worth the wait if i cant source one straight away. If anyone knows of any shops or even websites that are good to buy from your help would be muchly appreciated! The sooner its in the sooner i can put it on the site =)

I have an R33gtst with a complete rb25det series 1, a few weeks ago i was close to its top speed and all of a sudden heard a bang from the engine, lost all compression an had no response it just rolled to a stop, had a look and found a hole in left hand side of my block, its abit bigger than the size of a 52mm tacho face. It has had a good 30g spent on the engine including a fully forged bottom end, heaps of head work, bigger cams, bigger fuel system, greddy plenum, nearly everything was replaced with aftermarket gear, 4inch exhaust, t04Z ran 25psi low boost and 42 high making 690rwhp, uses a custom made switch wired to the microtech handcontroller to change from low to high whilst driving. It was only on low boost when the engine failed. The guy i bought it off and that built it has sadly passed away and he was the only one that knew the car inside out and who i spoke to if i ever needed anything. Ive pulled it apart and the only thing wrong with the head is one of the valve heads has snapped right at the start of the stem. Conrod & Bearings 2 & 3 have big chunks out of the left hand side where im guessing it hit the block. Is there anything else i should be checking or doing while i have the head off so when it goes back in there are no more dramas? I am not going to bother re-using any of the bottom end parts that are still okay and go for a completely new forged bottom end to ensure this doesnt happen again. Have been thinking about building a 30 block, fixing the broken valve and fitting the 25 head back on top because of the lag i used to get, or is a whole rb25 a must with the set up i have for this type of top end? Any advice would be muchly appreciated as i want to get the rebuild started asap and get it back on the road running even better than before cheers Will post pics of the hole in block, head and bottom end internals in the next day or 2.

after reading alot about the conversion and the high numbers its pushing out that is what im most keen on putting in it, just wanted to find out if there was a certain reason why it wasnt done before when they built the rb25 bottom end and pushed out just under 700hp, with all the parts i already have i should only need the fully forged 30 block and extra pin drilled in for the tensioner to complete the rebuild if ive read the topics correctly? If theres anything else im missing or should do before assembling please advise me

Hi guys, im new to the site and know theres a heap of info on this but i cant decide which is the best choice for the set up ive been running I have a 33gtst with a complete rb25det series 1 5spd manual, a few weeks ago i was giving it all its got down the motorway and all of a sudden heard a bang from the engine, lost all compression an had no response until it came to a stop, had a look and found a hole in left hand side of my block, its abit bigger than the size of a 52mm tacho face. It had a fully forged bottom, heaps of head work, bigger cams, injectors greddy plenum, nearly everything was replaced with aftermarket gear, 4inch exhaust, t04z ran 25psi low boost and 42 high making 690rwhp, using a custom made switch wired to the microtech handcontroller to change my settings. It was only on low boost when the engine failed. The guy i bought it off and that built it has sadly passed away and he was the only one that knew the car top to bottom and who i spoke to if i ever needed anything. Ive pulled it apart and the only thing wrong with the head is one of the valve heads has snapped right at the start of the stem. Conrod 2 & 3 have big chunks out of the left hand side where im guessing it hit the block. I was considering building an rb30 block, fixing the broken valve and fitting the 25 head back on top because of the lag i used to get, the only thing stopping me is ive been so curious as to why that wasnt done before, maybe the 25 bottom was more suitable for its setup? Any advice would be muchly appreciated as i want to get the rebuild started asap cheers Will post pics of the hole in block, head and bottom end internals in the next day or 2.

my 33 got abit hot the other nyt & it had lost all water, when i finally cooled it down i could see that the bypass connector/valve that is pressed in behind where the thermostat sits was cracked, there is absolutely no room under the intake manifold but i managed to get it out and get the new part, unfortunately the new part is way to hard to press back in with such little room and i was hoping someone could tell me if i can get it from the bottom and get a good swing at it to force it in or if i have to take the inlet manifold off to allow me more room? any advice or help would be muchly appreciated