OST-043: Deutscher größerer Ventilkopf
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03-07-2017, 10:24 PM
Post: #11
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OST-043: Deutscher größerer Ventilkopf
been awhile... they managed to fit me in....
OST-043 getting the seats removed, and machining the head to accept new seats. more to come....... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-09-2017, 02:47 AM
Post: #12
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OST-043: Deutscher größerer Ventilkopf
prepped... waiting for the next step
more to come..... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-16-2017, 06:20 PM
Post: #13
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OST-043: Deutscher größerer Ventilkopf
from another forum Wrote:Which, will of course be, another flow test (before any port work) to determine the benefits of oversized valves in a 4age head. The ONLY work performed on intake #1 will be the 3 angle, and simple blending of the new seat into the bowl(less then 3/4" deep).... ... looking at the splitter that is evident. The other 3 will get ported. This view shows that the oversized seats in chambers #1 and #2 have been blended, but careful viewing inside chamber 1 shows the blending is only so deep, and that the guides are still untouched A different view, this time at the mostly finished #2, and the yet to be started #3 More to come........ Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-16-2017, 11:21 PM
Post: #14
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OST-043: Deutscher größerer Ventilkopf
That's a awesome difference
Sent from my F3111 using Tapatalk |
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03-22-2017, 07:21 PM
(This post was last modified: 03-22-2017 07:21 PM by oldeskewltoy.)
Post: #15
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OST-043: Deutscher größerer Ventilkopf
(03-16-2017 11:21 PM)MIGGZFSU Wrote: That's a awesome difference thanks.......... intake ports are done until after checking on the flowbench... which will come after cutting the 3 angle valve job. Exhaust side next....... more to come..... oldeskewltoy Wrote:Exhaust side next....... 2 down... 2 to go... Note these ports fit either the SV3 copper gasket, or the blacktop gasket more to come.... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-24-2017, 07:27 PM
Post: #16
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OST-043: Deutscher größerer Ventilkopf
from another forum Wrote:I always love watching your work. Thanks! The head is now ready to go back to the shop for it's 3 angle........... The chambers are partially finished, major deshrouding has occurred, but final volume can't be set until the valves are set on their seats. more to come...... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-25-2017, 09:10 PM
Post: #17
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OST-043: Deutscher größerer Ventilkopf
Hmmmm, I missed a post....
Remember this head came with an ITB adapter. Well this ITB adapter is a well designed piece! I'm pretty sure it is a TecArt ITB adapter, and I'm a fan! Once I did the taper on the intake port roof[s]... the intake adapter is such a nice fit and notice the wonderful angle down now, instead of horizontal I wish I had @ my disposal a T3 adapter so I could put them both on the bench... more to come...... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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04-04-2017, 05:49 PM
(This post was last modified: 04-04-2017 05:50 PM by oldeskewltoy.)
Post: #18
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OST-043: Deutscher größerer Ventilkopf
The head is currently back @ the shop getting the seats cut, and checking valve protrusion.
In the meantime.... A bit of finishing work on the Tec Arts ITB adapter more to come........ Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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04-21-2017, 02:13 AM
Post: #19
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OST-043: Deutscher größerer Ventilkopf
(04-04-2017 05:49 PM)oldeskewltoy Wrote: The head is currently back @ the shop getting the seats cut back in my care to get the bowls, and seats set to a consistent diameter, next week it goes back to have the cam clearances set, and then back in my care once again to set chamber volumes. My client is using Mahle type F/A pistons, so chamber volume will be set to 37cc, to give him a static compression of 11.8:1 More to come.... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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04-21-2017, 09:08 AM
Post: #20
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OST-043: Deutscher größerer Ventilkopf
Cams in the 280 range or is he going for lower DCR?
AE86 ex-daily |
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