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Stock Rb30 Pistons

esky_mad

By esky_mad,
in Engines & Forced Induction

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esky_mad Proficient

esky_mad

Posted
Posted (edited)

Hi all,

I have finally gotten around to starting my 25/30 build.

Just using an R32 25DE head.

Unfortunately my 30 block has a few score marks in the bores so I will be getting it honed or bored if it is too far gone.

Main question I have is regarding stock 30e pistons, this build is purely for a bit of fun so I wouldn't expect any great power figure. I am after a set of NA pistons and after searching around precision seems the best option for me. In an older thread prices were posted up which were in the $250 bracket minus rings, I can't find anything near that except for ET pistons which I don't want to use.

Is this the excepted price for these now ?

Any info is much appreciated.

Edited by esky_mad
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https://www.sau.com.au/forums/topic/434201-stock-rb30-pistons/
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  • 1 month later...
Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

nothing wrong with precision pistons.

i had them in my engine for a few months and i loved them. i pushed them to 310rwkw with the crome molly rings without an issue.

the engine was rebuilt and forged for reasons other then piston/ring failure.

i would use them again.

  • Like 1
jet_r31 Mentor

jet_r31

Posted
Posted

I made 370- 470rwkw for 2.5yrs with the cast precision(cars auto aswell )..i then had a original alternator fail and cut the pumps under full boost

broke 1 piston other 5 where fine.

Ive also used them in a 5k toyota motor, made 156rkw on 24-25psi,on 98 octane had them in for 7-8ish yrs before i sold motor.

Some people have no luck with them though.

Standard pistons are super strong though if you find a set not to worn!

cheers

darren

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

I made 370- 470rwkw for 2.5yrs with the cast precision(cars auto aswell )..i then had a original alternator fail and cut the pumps under full boost

broke 1 piston other 5 where fine.

Ive also used them in a 5k toyota motor, made 156rkw on 24-25psi,on 98 octane had them in for 7-8ish yrs before i sold motor.

Some people have no luck with them though.

Standard pistons are super strong though if you find a set not to worn!

cheers

darren

some people have no luck with a fresh set of forgies too. its all in the build.

texman30det Rookie

texman30det

Posted
Posted

nothing wrong with precision pistons.

i had them in my engine for a few months and i loved them. i pushed them to 310rwkw with the crome molly rings without an issue.

the engine was rebuilt and forged for reasons other then piston/ring failure.

i would use them again.

Hi there mate,

Im doing the same build with r32 25de head. N/A stock pistons conrods and crankshaft. Just had the ACL race bearings, bottom and mains and ACL cromoly rings. Motor is fully refreshed and is ready to be put together, i did not get the motor balanced as i thought that there is no point as im re-using the same NA internal components, do you guys think i need to be worried?.. has any of you guys done a build without getting the motor balanced?.. cheers

texman30det Rookie

texman30det

Posted
Posted

I made 370- 470rwkw for 2.5yrs with the cast precision(cars auto aswell )..i then had a original alternator fail and cut the pumps under full boost

broke 1 piston other 5 where fine.

Ive also used them in a 5k toyota motor, made 156rkw on 24-25psi,on 98 octane had them in for 7-8ish yrs before i sold motor.

Some people have no luck with them though.

Standard pistons are super strong though if you find a set not to worn!

cheers

darren

Did you get your motor balanced after the engine build?

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