murrayis

previous cas had a 24+1 disc in it and i see aem do a disc for the rb25 but dont know if it would suite the rb20 cas body

honestly i have no idea...rb20det? the original had a black circle in the mide, i think its a mitsu?

So A little update, I've needed to purchase new Rods and Pistons. Rods have arrived and pistons should be leaving the USA today fingers crossed. I'm still to track down a CAS and knock sensors but after that we should be good to go full steam to the finish line.

Not 1 less - No Oil support ring what so ever.... Had the top and bottom ring and the expander

So I put a call in the the engineering shop to see what they had found so far. They've done a vacuum test of the head and found 8 of the valve aren't sealing correctly and also that there is a oil support ring missing from each piston so there is a .8mm play in the oil rings and they would have never put outward pressure on the bore to bed in. Waiting on a call back to make sure the pistons can be re-used then i'll be up nice and early tomorrow on the phone to Ross Racing Pistons to order a new set of rings and oil support rails.

Sorry Guys - I did try reply to as many people as I could - Missed a few. Sale is on hold for the moment - Waiting to hear back about rebuilding and not parting out and its taking longer than expected.

So I might have some pistons lined up but need to see what I am missing from this PDF - Anyone care to translate for me? http://www.tomei-p.co.jp/manuals/pdf/rb24piston.pdf

So Day 1 Complete & the Block had been stripped in record time this evening. Next Step to arrange for pickup and off for her measurements to be taken.

Now I just need to work out which pistons to use, I've been looking at various brands and using either CA18DET / 4AGE / Honda B16 pistons just trying to find the right combination or Bore. Compression Height & Pin size

lol Roy! Engine is being stripped this afternoon and then will be measured and blueprinted to see which pistons are required and then the final rebuild will commence!

thanks for your support! hopefully tomorrow ill have a better idea of the plan!

lol Yea alot of other things have been going on so plenty to fill the mind. Currently looking for a set of pistons - I think i'll rebuild as the time it'll take to sell all the parts will drag this into next year.

yea but who do you trust to do the machine work....everyone gives your a different answer

yea i want to know the CR and measured and get recommendations on why the piston skirts have worn so much in such a short period and then recommend a piston. the last two builds didnt last more than a few hours on the syno and these people knew what they were doing.... if i can get away with it id love to complete it and use ca18 pistons but i dont know if they will do the job.

yea the pistins are the easy part im struggling to find someone who knows what they are doing and willing to do aomething different.

needs new pistons which are custom order, then all the machine work then need someone who knows what they are doing to bake the cake.

Augustine Heights, QLD Parts are spread across a few places. Parents, Work and above. But can ship if required at a negotiated price.

So I think my patience has finally ran out and I've broken the back of the bank account for the final time..... So I've decided to get EOI to part out everything I can salvage from the engine. If you or you know anyone who could be interested in any of the following let me know. The List: Rb20DET Tomei 272 9.25mm In+Ex Cams $600 RB20DET Tomei Solid Lifters $600 RB20DET Tomei Valve Springs $350 RB20/26 HKS In+Ex Cam Gears $250 Spitfire Coil Packs $200 RB20 HyperTune Custom front facing plenum * Work of Art* Hypertune 90mm Throttle Body to Suite above Prefer to sell as a pair $2000 SARD 650CC Injectors $400 RB26 SARD Fuel Rail $200 RB25 Top Mount T3 Manifold Kinugawa To4z/Gt35R * I think Combo* Turbo TiAL 38mm WasteGate Custom 4" > 3" Front Pipe to Suite above combo Kit $1300 Rb26 Crank Good Condition $800 Ross Balancer - Need to check if this is for a rb26 or rb20 $300 Eagle Rb26 Rods *Little end will need bushes replaced as they were re-sized to suite pistons - Roughly $4 each from ACL* $450 Nitto High Flow Oil Pump $800 ARP Rb20/25 Head Studs (Brand New In Box) $200 ACL Rb26 big end bearings +0.001 (Brand New In Box) $55 All Prices are neg. however I'd like to get the most back out of this 6 year ordeal. I Can provide pictures for serious buyers if requested. Condition on all items is excellent and most have only seen less than 5 hours of engine work. Cheers.

So I think my patience has finally ran out and I've broken the back of the bank account for the final time..... So I've decided to get EOI to part out everything I can salvage from the engine. If you or you know anyone who could be interested in any of the following let me know - I'm thinking i'll cut my losses and stick a bog stock 26 in an move on.... The List: Rb20DET Tomei 272 9.25mm In+Ex Cams $600 RB20DET Tomei Solid Lifters $600 RB20DET Tomei Valve Springs $350 RB20/26 HKS In+Ex Cam Gears $250 Spitfire Coil Packs $200 RB20 HyperTune Custom front facing plenum * Work of Art* Hypertune 90mm Throttle Body to Suite above Prefer to sell as a pair $2000 SARD 650CC Injectors $400 RB26 SARD Fuel Rail $200 RB25 Top Mount T3 Manifold Kinugawa To4z/Gt35R * I think Combo* Turbo TiAL 38mm WasteGate Custom 4" > 3" Front Pipe to Suite above combo Kit $1300 Rb26 Crank Good Condition $800 Ross Balancer - Need to check if this is for a rb26 or rb20 $300 Eagle Rb26 Rods *Little end will need bushes replaced as they were re-sized to suite pistons - Roughly $4 each from ACL* $450 Nitto High Flow Oil Pump $800 ARP Rb20/25 Head Studs (Brand New In Box) $200 ACL Rb26 big end bearings +0.001 (Brand New In Box) $55 All Prices are neg. however I'd like to get the most back out of this 6 year ordeal. I Can provide pictures for serious buyers if requested. Condition on all items is excellent and most have only seen less than 5 hours of engine work. Cheers.

how are they for cost?

from what i know hes back at the moment but wont take my calls. the one he did for me was a 24+1, now i need a new cas and a new tune

Roy, Yea you are correct unfortunately, Few items missing. I couldn't do that to you but the offer is very much appreciated as I know you've had them put aside for some time! I wasn't wanting to go to 83mm pistons because i'd want to sleeve the block for a little more safety however I see Tomei make a 83.5mm Head Gasket for a rb20 I've got to get time to strip the block all the way down and looking at the bore the pistons have been walking around a little so My guess is they are past their used by date. The bore currently is a little over 82mm

Indeed

Guys, I've read many threads on many forums regarding which piston is best. I'm looking to Replace my Custom Ross pistons with a off the shelf item for my Rb20 stroker. I'm looking at using a 83mm CA18DET piston but unsure which make to order. I'm comparing Supertech, CP & WISECO currently - All vary massively in price and availability. Researching Supertech I've not been able to find much positive or negative towards their piston but they are well known for their Engine accessories eg Valves etc to be excellent value and build. CP & WISECO have plenty on info but still welcome feedback Cheers Cameron

Well Engine Arrived as safe as can be expected. Missing parts list now includes: 1 x HKS Intake Cam Gear Custom Modified CAS So If anyone knows anyone selling any of the above I'll need to replace everything that's missing.