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How Different Are The Following Motors

BANGN

By BANGN,
in Engines & Forced Induction

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BANGN Experienced

BANGN

Posted
Posted

Looking at purchasing a motor for a build and would like to know if there is any differences between

R33 RB25 Series 1 & 2 Turbo and non turbo motors

I plan on going to town on the motor so turbo manifold isnt a must have as il be changing it anyway, im more concerned the outputs and boltups are still the same, and wondering if NA blocks & heads are still gunna work and if there are any advantages of any of those motors above.. I dont want a neo, just hte above stated.

cheers for ya helps

discopotato03 Grand Master

discopotato03

Posted
Posted

I believe there is some variation in the gallery where the water pump bolts up so depending on which hi po pump you want to use it may or may not be a problem .

Someone recently had an issue fitting a new pump to a S1.5 GTS25T block , I don't know when the pattern changed but someone here probably knows .

I'd be checking to see if the R33 RB25 DE block had oil squirters because they are fiddly to fit if they don't .

The heads not sure but if turbo/NA are anything like FJ20's the NA type may have smaller exhaust manifold studs I suppose because they're not suporting a turbo .

Someone who's used to building up RB's should know the where's and why fors .

Cheers A .

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