OST-045: 5AGTE... again ;)
02-09-2018, 08:15 PM (This post was last modified: 02-09-2018 08:16 PM by oldeskewltoy.)
Post: #11
OST-045: 5AGTE... again ;)
(02-09-2018 02:11 PM)Dave W Wrote:  Dan
Have you send any dyno testing that would indicate that the 4AGE would see favorable power gains by incorporating anti-reversion step in the exhaust port - header. I've already increased the exhaust port by about 3mm, but was thinking about grinding out the header I.D. at the head attachment face. Dave W

No dyno testing on this by me... and while I've heard of anti reversion, I've yet to see anything built into a 4AG head... and only a rare few built into headers

from another forum Wrote:That's a lot of material in the one port :!:

with a lot more to remove!



[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]

2 down... 2 to go



more to come.... Hurray!

Dan -

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

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02-11-2018, 08:49 PM
Post: #12
OST-045: 5AGTE... again ;)
Ready for her multi angle......

[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]



more to come...... Hurray!

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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02-22-2018, 07:25 PM
Post: #13
OST-045: 5AGTE... again ;)
back from her multi angle....

[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]


more to come.... Hurray!

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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02-25-2018, 12:42 AM
Post: #14
OST-045: 5AGTE... again ;)
[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]

Chambers currently @ 37cc. Now to decide what the final volume is to be, and then machine the surface to size. This head has not been machined since it left Toyota. Once machined we can move on to assembly, and fitting the cams.


more to come.... Hurray!

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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03-11-2018, 12:33 AM
Post: #15
OST-045: 5AGTE... again ;)
another forum Wrote:Amazing work as always. How the heck do you get those shallow coolant passages around the chambers so clean?

oldeskewltoy Wrote:One of the costs.... I have each head cleaned and pressure checked at a machine shop. In this case the head did come to me cleaned already, but I still had it checked for its pressure holding capability.

another forum Wrote:The machine shop that does the work is seriously impressive then. I took two heads so far to two different machine shops and neither could get the coolant passages as spotless as this.

Not all of the heads I work have this "pretty" of a finish from cleaning...




BUT... all heads leaving are machined so that you can read in their reflection... OR more appropriate - fully ready for a metal head gasket!

[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]




More to come........ Hurray!

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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03-19-2018, 05:38 PM
Post: #16
OST-045: 5AGTE... again ;)
ready for assembly.... with a pair of Cat camshafts

[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]


more to come......... Hurray!

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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03-27-2018, 08:12 PM
Post: #17
OST-045: 5AGTE... again ;)
[Image: AEU86 AE86 - OST-045: 5AGTE... again ;)]

For shipping: Exclamation With cam dummies in I can keep the shims I want in place without having the cams installed..... Thumbs up!

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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