(Catching up) OST-086 MM: Built for Mario
10-17-2022, 07:46 PM
Post: #1
(Catching up) OST-086 MM: Built for Mario
[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]

So... way back around OST-070, I was asked if I could reserve OST-086 for Mario....

Mario is our local (greater Portland, Oregon) AE86 reclaimer.... He has pieced together AE86s for the last 5-10 years reclaiming at least 10 from wrecks, and abandoned cars. His personal AE86 is a true rhd Levin coupe that he rebuilt from a damaged chassis.

[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]

So when he asked, I kind of felt obliged.... Angel

He brought over his core... (note the TVIS effect on intake valves 1,4,5, and not so much but also on 8 )

[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]

His build specs were to keep the stock bottom end (9.4:1), so this build was to maximize the heads efficiency.

First steps... get it cleaned, tumbled, and deburr the casting.

[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]


Upon inspection this head had less then ideal machining from Toyota. Chambers 4, 3, and 2 have residual metal "hanging out" inside the combustion chamber.... shrouding intake valves 3, 5, and 7.

[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]



2 down... intake short radius is tidy, exhaust ports opened, and the first of the nasty chambers(chamber 2) is now cleared of the shrouding

[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]


4 down, valve job finished, just waiting for assembly

[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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10-18-2022, 10:12 PM
Post: #2
(Catching up) OST-086 MM: Built for Mario
I guess someone in the Tahara plant didn't have their morning brew yet. But indeed, that's quite a bad job this person did! Huh

1982 - TA60 Carina 4dr sedan - fun cruiser
1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

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[Image: AEU86 AE86 - (Catching up) OST-086 MM:  Built for Mario]
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10-28-2022, 08:23 AM
Post: #3
(Catching up) OST-086 MM: Built for Mario
I love watching these threads!

Also, those louvers on the Levin... I'm turning gelatinous.
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