IHI RHB5 VJ11/VJ14 for a 323 GTX owner - Page 3 - Mazda MX-6 Forum
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post #31 of 55 (permalink) Old 8-8-06, 11:58
 
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<whistles> looks nice. it'd be dope if you could include that turbine oil seal info in your write up, so noobs like me arent ruining their center sections

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post #32 of 55 (permalink) Old 8-8-06, 13:00 Thread Starter
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Then noobs would ruin center cartridges and be back at square one again. It's kinda like removing a crankshaft bolt using the ignition. Lots of people do it but very few suggest others to do so because it's a last resort method and can ruin your parts and or life very easily.

Just an FYI- All pictures were taken using an oldskool Sony DSC S30....1.3 megapixel

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post #33 of 55 (permalink) Old 3-19-07, 10:54 Thread Starter
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Here's another one I'm almost done with. This one is a VJ14/TBird hybrid though. It'll spend it's days in AutoX

Pictures of the port work unfinished:



^ Thats all cast iron that has been taken away. I also have some slivers in my fingers!!!!!!



The wastegate has been ported to roughly the size of a nickel. This is a good compromise from the dime size that it is. The wastegate flapper is around the same size as a quarter on the RHB5's.



I also port matched the exhaust housing to the gasket. ^



I wanted to open up the exhaust housing inlet to allow exhaust gas into the scroll undisturbed. I used a template from my own turbo to enlarge the opening allowing unrestricted flow into the exhaust scroll. A lot of times the exhaust manifold has a larger diameter exit than the exhaust housing inlet.

Port matching helps flow, reduces heat, and reduces backpressure which on a turbocharged engine is the enemy. The turbine itself creates enough backpressure without the addition of outlets and inlets that aren't properly port matched.



Stock vs modified (unfinished)

Note the gasket mark on the stock housing. The exhaust gas leaving the exhaust manifold hits this ridge before it even gets into the turbine housing. The idea here is to make this turbo as efficient as possible, reducing backpressure and unwanted heat caused by undue restriction, therby maximizing potential at minimal boost.



Here is a comparison of both wastegate holes ^



The is the backside of the inner scroll ^



And here is cast iron to sprinkle on your bowl of Frosted Boost Flakes!

Last edited by SixSick6; 3-19-07 at 11:14.
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post #34 of 55 (permalink) Old 3-19-07, 11:02 Thread Starter
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All of the componants have been cleaned, bead blasted, cleaned again, then primed with high temp and coated with 1,200 degree ceramic silver. The parts look just as good in person as they do in pictures.

Here is your turbine shaft with brand new bearings, a brand new turbine seal, a fully balanced T Bird wheel. Both have been balanced as an assembly:



Here is the center cartridge:



Center cartridge went through the same process except coated in high temp (1,200) black:



^ Note that I also cleaned up the outter edges. This will allow the turbo to disassembled easier if it ever needs to be rebuilt or taken apart.



Sometimes the center cartridge doesn't want to seperate from the exhaust housing due to rust or impurities in the cast itself. I always make sure that the center rests flush in the exhaust housing, hence the reason I clean the outter edges by sanding.

Here's the backside of the turbine with a shot of the balancing on the compressor wheel:


Backside of the turbine balancing:



Both balanced as a unit:

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post #35 of 55 (permalink) Old 3-19-07, 11:06 Thread Starter
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Here is the wastegate ported:



Exhaust outlet:



Back side:



Exhaust scroll:

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post #36 of 55 (permalink) Old 3-19-07, 11:13 Thread Starter
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Now for the good stuff....POLISHING THE COMPRESSOR HOUSING!!!

Here is what I started out with- T bird housing on the left next to an IHI RHF55 VF39 (04~05 Subaru Sti) on the right:



This was after cleaning off all the dirt, grease, filth, grime, firth, muckmeyer that was on the 87-88 Ford Thunderbird TurboCoupe housing for the past umpteen years. I cleaned it with solvent first for the gross contaminate and went to the bead blaster.

Then it gets cleaned by hand as well as prepped for polishing:



My polishing "How To" can be found here:
(Aluminum polishing for n00bs.)http://www.mx6.com/forums/showthread.php?t=164538

Simple dremel with rouge for the small tight spots:



One handed Black and Decker technique FTW!:



One handed Black and Decker technique FTW!:



(one of thse days I'll get a table buffer)

If you've done the prep work right, it'll start to look like this:



And this:



And this:



And evetually will look something like this:



~The End~
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post #37 of 55 (permalink) Old 3-19-07, 11:34

 
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Oh that one ....

Peace
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Nürburgring is now 2Hrs away
My current projects are:
* RHD 626 2.2 Turbo 12V 4WD Hatch Rally car (180Hp)
* LHD 626 2.0 Turbo 16V 4WD Coupe Nürburgring Racer (220 Hp)
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post #38 of 55 (permalink) Old 4-3-07, 15:07 Thread Starter
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I finished the turbo. Here are the pictures:









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post #39 of 55 (permalink) Old 4-3-07, 15:09 Thread Starter
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And here is another hybrid of sorts that I finished up. It's a Vj20 (1.8 BPT) VJ11:
http://www.mx6.com/forums/1g-mx6-for...d-up-mail.html (Look at this crazy VJ11 that showed up in the mail)
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post #40 of 55 (permalink) Old 12-25-08, 7:32 Thread Starter
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I just wanted to say that I have heard from all three of these owners that these turbos are holding up well.

















































Yes, and I also want a cookie.

Last edited by SixSick6; 12-25-08 at 7:47.
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post #41 of 55 (permalink) Old 12-25-08, 9:00
 
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Well you deserve it, but the problem is that I already given K to everyong that I feel does.

It just happens that that is less than 50 people in the 1G section (Theres probably less than 50 people total who post in 1G)

I must lower my standards!

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
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post #42 of 55 (permalink) Old 12-26-08, 0:24
 
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Can you build me a t-bird turbo?

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post #43 of 55 (permalink) Old 12-26-08, 13:59 Thread Starter
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I can do you even better- I can finally finish up some RX7 hybrids. I have two RX7 wheels.
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post #44 of 55 (permalink) Old 12-26-08, 20:42
 
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Quote:
Originally Posted by SixSick6 View Post
I can do you even better- I can finally finish up some RX7 hybrids. I have two RX7 wheels.
Are those better than a t-bird hybrid?

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post #45 of 55 (permalink) Old 12-26-08, 20:50
 
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Yah a little bigger than a T-bird but still not as big as a VF12 hybrid (see link in my sig)

Though the HT12's (RX7 twin turbo) are much easier to come by and can be to put together easier.
I have only seen 2 VF12's on ebay since I picked mine up about 9 months ago.

SixSick6 has posted threads and replys about the HT12's previously try searching for HT12 in the 1G section and you'll find it.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
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