Dave's First gen 20B - a work in progress...

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Old 10-15-12 | 04:01 AM
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Been busy cleaning all the Irons/housing and rotors, given the Irons a good bath in the sonic cleaner. Still need to check all the tolerances, hoping to get to that soon..

Found time to take the exhaust sleeves out of the housings, painful job but needed to get the Cosmo sleeves out of there to make way for the FC sleeves I have.




Modified one of the factory mounts I have too, only done the power side, I think i'll do the other mount as well.

I drilled out the threaded shaft on both sides and put in one length of stainless thread, should work well and mean no more broken mounts.



Still a heap to do, i'll be starting on the porting soon..
Old 10-18-12 | 09:16 PM
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Awesome build! Love the detail! I'll be keeping an eye on this thread. I'm getting that 20b itch!
Old 11-06-12 | 07:44 PM
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Your build is awesome!!!
Old 11-08-12 | 03:46 AM
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^^Thanks Mate.



A few more up dates:

Picked up some more parts..gaskets, bearings etc.



Swapped out exhaust sleeves and have done a bit of exhaust porting.

FC v's Cosmo exhaust sleeves.



Ported v's stock




Unfortunatetly the front iron had a collapsed water jacket, casting is way to thin...



Fixed. Quite pleased how it turned out.



Had some bearing presses spun up, one for the stationary gears and one for the rotors.



The new bearings pressed in..



Next step will be to port the irons..

Old 11-17-12 | 03:58 PM
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You might want to rethink your motor mounts. The problem with used stock mounts is they are very squishy. Somethng that is squishy but held under tension by a through bolt will work for a while, but it has lots of "give" and will cause problems later.

I went with hockey pucks which are way stiffer. I wanted to go with RB's competition motor mounts, but for now hockey pucks do the job well. I did go with a competiiton tranny mount though. Highly recommended!

RB describes the competition mounts as 40% stiffer than stock. I figure hockey pucks are 60% stiffer than stock. Your stock mounts are anyone's guess. You'll find the more you tighten them down, the lower your engine will sit in the bay. Could cause oil pan clearance issues.
Old 11-17-12 | 06:21 PM
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Glad you fixed the iron. I have had to do the same with steel irons a few housings. People not running coolant with good anti wear protection properties dont understand the harm they are causing.
Old 01-02-13 | 04:06 AM
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First off..Happy new year everyone


Update time again..Been working on little bits and pieces over the last few weeks, making slow progress but getting there..


Gear box member is finished and powder coated.



The start of the surge tank..The extended plate will hold two pumps and i'll mount the pre pump on the side.



Rotors all cleaned and new bearings installed.



Sizing up the extended oil pick-up.



Blanked off all the vacuum points on the LIM & UIM with grub screws that I'll dont think I will be using.



Finished porting the plates, a nice streetable port and will help me reach the goals im aiming for with the car.



The Housing's all ready for paint. Have cleaned, ported them and swapped out the 20B exhaust sleeves with 13Bt ones.



Playing around with the turbo suppport, I'll be running the support arms from the three stainless steel bosses that can be seen in the picture, should do a great deal for supporting the turbo's weight.



After all that i need a spiced rum with these chicks..







Old 01-04-13 | 07:43 PM
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More pictures of spicy rum chicks! Great job so far. Keep up the good work!
Old 01-05-13 | 08:42 PM
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Nice work and chicks lol
Old 01-06-13 | 09:29 PM
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^^ what he said
Old 01-09-13 | 01:10 PM
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awesome!!
Old 02-03-13 | 03:44 AM
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Work has been keeping me out of town, so not much progress.. except little jobs here and there.

I got the rotors and rotating assembly balanced.

Also got the rotors clearanced, you can just make it out in the pic.

For those that are unsure what it is, its the machining of both sides of the rotor, removing the slightest amount of metal.



Next on the list is to clearance the side seals and pretty up the housings and irons with some paint.
Old 02-03-13 | 12:07 PM
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Hey fyi. If you decide to use the rx8 pedestal the oil galleys dont line up you will have to add some material and then port the holes to match the block. Im using the rx8 pedestal on mine and I came across this thread again so I figure id give the heads up.
Nice build!
Old 02-03-13 | 06:00 PM
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I'm using the standard pedistal now. I knew about the misalignment of the Rx8 pedistal, you'll just need a little sandwich plate to align the two like you mentioned. It's the way to go if your engine is moved right back.
Old 02-04-13 | 07:44 PM
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wow, salute to you, man......great job..
Old 03-10-13 | 03:30 AM
  #91  
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Another small update.

It's been impossible to make any progress with the car, too busy with work and the time I do have available I spend it with my wife and daughter. However the turbo support is finished and have picked up some new 044's and a carter black, should be able to have a crack at finishing the under car surge tank/fuel supply set up over this month.


Old 04-08-13 | 06:38 AM
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Been a busy few weeks and have made some good progress.

First up lots of silver to match the UIM & LIM.




Black to match.



Clearenced the side seals last week. Took some time with 18 side seals to do


Been piecing together the fuel set up for some time now. Finally got it screwed together.


Glued the apex seals together, ready for the rotors.
Old 04-10-13 | 11:50 AM
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Do you have the template of the header flange to the engine you can e-mail? I need to get a flange cut for Tuesday and am in the UK!!!
Old 04-18-13 | 06:03 AM
  #94  
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With all the prep work done to the irons, housing and rotors. It's time to have some fun and assemble the motor.

Large Iron set up and ready to be stacked..



Center rotor and E-shaft in place.



Intermediate iron and rear rotor in place.



Rear iron on. Block flipped and ready for the front rotor and iron.



Block assembled!



Torquing up the rear nut with a super sized torque wrench!



Checking the end play.



All set up and waiting....

Old 09-22-13 | 05:58 AM
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It been some time since I have touched the car, spent six months in the middle east. Back in Oz now and it's time to get cracking on the rx7!!


Ordered a twin plate a few days back, bolted it up today..




Next will be to put the on the oil regulators, oil pick up, sump and bolt up the gearbox and drop it back in
Old 10-02-13 | 05:18 AM
  #96  
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Ok, some more progress!

Bolted on the sump, bolted the gearbox up and dropped the motor back in





Time to start putting some homeward bounders on the bolts Bolted on the LIM, fuel rails and injectors!


Old 10-02-13 | 07:14 AM
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Such a sweet build!!

Beautiful work man !
Old 10-11-13 | 12:54 AM
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Like.
Old 10-18-13 | 05:59 AM
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Ok, I've done a little more. Just doing little bits when I have the time. Enjoying the build

Wrapped and bolted up the exhaust manifold.




Bolted up the turbo and omp today.


Old 10-28-13 | 04:36 AM
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Bolted up a few more bits, started the wiring too.

Coils are done.




Injectors are next..





Getting closer...


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