Threaded Mode | Linear Mode

oldeskewltoy · (This post was last modified: 02-09-2018 08:16 PM by oldeskewltoy.)

(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!

oldeskewltoy · 02-11-2018, 08:49 PM

Ready for her multi angle......

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

more to come...... Hurray!

oldeskewltoy · 02-22-2018, 07:25 PM

back from her multi angle....

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

more to come.... Hurray!

oldeskewltoy · 02-25-2018, 12:42 AM

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!

oldeskewltoy · 03-11-2018, 12:33 AM

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!

oldeskewltoy · 03-19-2018, 05:38 PM

ready for assembly.... with a pair of Cat camshafts

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

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

oldeskewltoy · 03-27-2018, 08:12 PM

For shipping: Exclamation

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

Possibly Related Threads...
Thread		Author	Replies	Views	Last Post
	(Catching up) OST-086 MM: Built for Mario	oldeskewltoy	2	2,261	10-28-2022 08:23 AM Last Post: decryphe
	OST-093: My, My, Mystery	oldeskewltoy	10	4,116	09-18-2022 02:19 AM Last Post: oldeskewltoy
	(Catching up...) OST-085: 7AG Big Valve build w/Cat Cams 262 9.0mm lift cams	oldeskewltoy	5	2,931	09-09-2022 09:07 PM Last Post: Vaptor
	(Catching up...) OST-083: Salvage operation	oldeskewltoy	2	1,886	07-11-2022 08:32 PM Last Post: banpei
	(Catching up...) OST-082: Nope, never again... at least not without all the parts	oldeskewltoy	0	1,498	06-28-2022 09:17 PM Last Post: oldeskewltoy