4AGE. Is it worth the trouble?

[Chixican]

Gnugfur Wrote:I've been told that the 4AGE blacktop would be great turbocharging?
I know about the 4AGZE, but i've had a hard time getting a hold of one.

Does the ZE fit the original engine mounts?

Gearbox is under planning.

Small port red top and silver top are both 7 rib, I believe that the black top is only 5 rib, but I'd have to look it up. Any of them will be a stronger block than the stock 3 rib.

You could buy a silver top or small port red top and swap the internals to turbo friendly parts, low comp pistons, and turbo rods. If you go with the red top or silver top rods I think they might hold up to boost as well, but do some research first.

Any of the above will fit when using the RWD engine mounts. For the red top you should be able to pretty much strip your rwd motor to a short block and re-use your components on the FWD small port. If you decide to use the small port head you will need a TVIS eliminator adapter to bolt the RWD intake manifold to the FWD head. The exhaust side is the same RWD and FWD.

For gearbox the most popular route is using a W series transmission such as a w56 or w58. You will need a custom bell housing like the one out of the Philippines made by Rhett (Toycoolrolla on club4ag and hachiroku.net). From what I've seen fitment isn't perfect but it's good enough unless you can find a different source. If you want to go with an AZ6 (Altezza, Mazdaspeed Miata, RX transmission you'll also have to get a custom transmission made, get the one made by CBY, or this custom one.

http://www.toyotanation.com/forum/showth...p?t=255822