4AGE block differences explained (incl. some eyecandy)

[Bean]

Project D Wrote:I don't know why almost everyone forget the redtop bigport (AE92 mk1, before they had the smallport)

7 rib block, 42mm crank, bigport, no oil squirters and 9.4:1 pistons.
I have a recap table (in Japanese) if you want :wink:

you know my eMail

[Alex170984]

This has already mangled my melon

Is this why perhaps my other 4age seemed a hell of a lot more responsive because it had higher comp pistons in it?

Am I really going to be able to make 150+ hp with my mods with these piddly pistons in comparison to high comp?

[ditn]

i have an original belgium 7rib 4AGE with the high compression pistons and 40mm crank i believe laying at home.Served me well for 260000km +
Will try to take some pictures later.

[Bean]

@ditn: it'll be interesting to see if it also has the extra "meat"

[Project D]

Bean Bandit Wrote:I stand corrected, the dish is the same as other 9.4:1 CR pistons... first time I see one of those with a 20mm pin.

I told you they existed
And actually all the first generation of AE92 in Japan (and France, at least) had this pistons.

I will email you the japanese table and maybe translate it for everyone else here

But this picture already give you all the generations:


PS: My AE86, who was one of the latest produced AE86 (10/1987)
had one of this "red and black top" (7rib and red "16 valve" on the cover)

I can't tell for the internal parts, I never opened it, but one of my friends (who worked at toyota) told me that Toyota made "hybrid" in 1987 (7rib but 40mm crank) So there is a good chance that mine is one of this

[ditn]

Mine should be one as well since its not correct with any of the above pictures.
colors are from picture 2
its a september 1986 belgium TVIS 7rib 4AGE ae86
It even says 91 kw on my papers :o
So hybrid would be started even in 1986.

i can make pictures of pistons tomorrow,will need to do some work to show the crankshaft.

[oldeskewltoy]

I had a 7 rib block/40mm internals in my AE86(built 4/87)... vin stamped and all so I KNOW it was from MY AE86...

[Bean]

my AE86 feels old now - although it's one of the first koukis it's from May 1985. On a positive side it didn't come with a CAT.

[[Walaki]D`Lair]

I had a 40mm/7rib engine, from an AE86 too

[[Walaki]D`Lair]

Alex170984 Wrote:This has already mangled my melon

Is this why perhaps my other 4age seemed a hell of a lot more responsive because it had higher comp pistons in it?

Am I really going to be able to make 150+ hp with my mods with these piddly pistons in comparison to high comp?

Turbocharge the fuck out of it!