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post #1 of 3 (permalink) Old 05-17-03, 06:51 PM Thread Starter
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Join Date: May 2003
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aftermarket engine parts

for the EA motor.

Are they easy to come by? and what are the weak points of the motor that i would need to be upgrading if i was looking at turboing an EA. Does anyone make an aftermarket turbo manifold for them yet, or do you still have to rely on expensive custom jobs :(

I would be getting a 3 speed auto version, and hopefully someone makes a kit by where i can adapt the c4/c10 auto onto the back of one!
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post #2 of 3 (permalink) Old 05-17-03, 07:18 PM
96 EF Futura
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Location: Now Residing in Brisbane
Age: 32
Posts: 2,494
Well the EA bottom end is known for its durability and should be fine with relatively low boost, however, I would dare say that the cast pitons would probably be the weakest link in the bottom end. There are a fair few places around that sell HP pistons for the 3.9/4.0, Im pretty sure KB make some pretty decent slugs.
As for the manifold I think the only one you can buy comes in a kit, although if you have alook at "the market" on FF a member is looking to have a bunch of manifolds made up for a group purchase, im certainly looking into it.

Lets go find that Hotdog tree I planted

Lowered EF Futura
Black Steelies ( too cheap to buy proper mags )
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post #3 of 3 (permalink) Old 05-18-03, 12:33 AM
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Location: Adelaide,SA Australia
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The advise I have recieved is this.
Get an Ea block and an EA head.
fit EF crank and rods to it and have the crank balanced and the rods shotpeened. Replace the pistons with ACL race pistons and some high quality bearings and bobs your uncle.
In turbo applications those falcon motors can make a stupid amount of power.
The above configuration can handle 413rwkw (6boosts EA)
The EA heads have the largest chamber once a protusion is removed and a lot of spare metal to cut out.
Ultimatly you'll get a 8.5:1 comp ratio out of such a motor. norm is 8.8:1.
Valves componants are also good for 413kw but that sort of power wants a custom cam.
I have the article from zoom of 6boosts car if you want further info.
I'm not aware of anyone that sells mass produced turbo manifolds but you can buy kits for $5k with a new turbo and the manifold.
I'm going the custom route any way cause I'm fitting 2 vg30 (nissan maxima/300zx) turbos.

Breathe! It's only the internet....
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