dxcorolla

I would only do it if it made rb22 or higher but it needs bigger pistons to do so there fore I won't be doing it. The rb20 bottom ends are fine, infact all rb bottom ends are good. get a good tune!!! It's all in the tune how long an engine will last. Would be a good read if you could scan them pages 4 me. Probaly can't get the september issue i woudln't think. cheers

I'd do the work myself. I have serached and the threads always turn into rb22 vs rb25 when rb25s are gay and rb30 owns it. I have found rb25 crank and rods on rb20 pistons make rb21 cheers

Where is the extra money for what? I got the pistons crank everything bar new bearings. Which it will most likely get anyway while it’s in bits. Did you answer my question? NO therefore I didn't need you opinion. Why run an rb20 for no extra money when it could be rb23? I don't see the point spending $1800 on forged pistons for an rb20 to make a midget 350rwhp when stockers do just fine. I would also not go rb25! For the cost of buying a 25 I am building a 500hp rb30det. How ever that’s not what I wanted to know. I wanted to know if any one could actually tell me if it works! Tomorrow is another day and since no one has told me I’ll be ripping them to bits and find out for myself!

My rb20det shit a piston after getting tuned. Got another set of 20det pistons. mods are t3/t3 40mm external FMIC injectors exhasut everything to support big power. Question is as i will have the bottom end in bits do rb25 crank and rods go straight in the rb20det with the 20det pistons? I all so have spare 25 crank and rods here which i want to use. Has anyone done this before? Can anyone tell me if it actually works? From what i can gather it will make an rb22 or rb23? Any help much appreciated. Cheers, Kingsley

r32 rb25de head stock with det valve springs big front facing plenum 80mm throttle body q45 afm. bottom end stockish rebuilt. shot peineed rods, and aftermarket rings, crank collar, either rb25 oil pump or n1 what would this turbo go like on it? called a gt45 Inlet (Exducer/Hot Side) T-4 Flange 70.1mm x 82.55mm (2.76" x3.25"). *A/R 1.05 Exducer *A/R 0.66 Compressor *Cooling/Lubrication Oil *Outlet (exducer/hot side) 4.25" V-Band *Inlet (compressor/cold side) 109mm (4.25") *Outlet (compressor/cold side) 86mm (3.38") *Compressor major diameter 98 mm my goal is 400-500rwhp. On a 20det modded manifold When would this size turbo start spooling and when would it hit full boost? 15psi. unsure of what exhaust manifold yet, either a 20det stock modded to fit the t4 flange or a whole custom mild steel one. Can anyone help with some info on this? is this turbo 2 big? Thanks