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"Built Motor" what is it exactly?

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Old 03-19-2012, 09:38 PM
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batmeat
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Default "Built Motor" what is it exactly?

So I've always thought that a built motor consisted of forged rods, rings, block, and pistons. But now I'm not to sure. I just joined, don't have a mustang yet, but will be buying one in a year as my graduation gift. I plan on getting a lease return 2012 gt or a used 2012 gt. The ultimate plan is to mod mod mod. I want to achieve ~800hp at the wheels. Here is how I'm going to do it. I won't be running as much boost as they are obviously. It won't be a track car so I figured a 3.55 instead of the 3.73 ratio would be best. So what am I looking at on the motor to handle all the boost that'll be thrown it's way..ie, the "built motor" ?
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Old 03-19-2012, 10:53 PM
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MustangCHN
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it's not a track car and u wanna put 800hp on the wheel?that's too much for a street car.
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Old 03-19-2012, 10:59 PM
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gmoran1469
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Wait... You are gonna mod a leased car.... What?
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Old 03-19-2012, 11:03 PM
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Flat out
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Originally Posted by batmeat View Post
So I've always thought that a built motor consisted of forged rods, rings, block, and pistons. But now I'm not to sure. I just joined, don't have a mustang yet, but will be buying one in a year as my graduation gift. I plan on getting a lease return 2012 gt or a used 2012 gt. The ultimate plan is to mod mod mod. I want to achieve ~800hp at the wheels. Here is how I'm going to do it. I won't be running as much boost as they are obviously. It won't be a track car so I figured a 3.55 instead of the 3.73 ratio would be best. So what am I looking at on the motor to handle all the boost that'll be thrown it's way..ie, the "built motor" ?
I have one question, have you ever driven a car with 800hp around town, or in bumper to bumper traffic?, and why is a 3.55 ring gear better than a 3.73 on an 800hp car?

Last edited by Flat out; 03-19-2012 at 11:07 PM.
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Old 03-19-2012, 11:05 PM
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onederful100
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thems big plans.
let us know how it goes.
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Old 03-19-2012, 11:35 PM
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batmeat
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Originally Posted by gmoran1469 View Post
Wait... You are gonna mod a leased car.... What?
No no, buy a used car something like a lease return.

3.55 cause with ~800hp I won't need aggressive gearing since this isn't going to be a drag car.
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Old 03-19-2012, 11:52 PM
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onederful100
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Originally Posted by batmeat View Post
No no, buy a used car something like a lease return.

3.55 cause with ~800hp I won't need aggressive gearing since this isn't going to be a drag car.
then you dont need 800 hp either.
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Old 03-20-2012, 12:00 AM
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Flat out
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I got screwed, had I had the ***** to ask for a new car when I graduated from H.S. I probably would have heard something like this,"you want a new car, GET A JOB''
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Old 03-20-2012, 05:16 AM
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JIM5.0
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This is a built engine:
http://www.fordracingpartsdirect.com...6007-a50sc.htm

It does not have the cams or head port work as the TKB engine, but you get hbeam true forged conrods and lower cr forged pistons. I think they are dished too. If so, you run less risk of hitting the valves with higher lift cams.

The lower geometric (static) cr also allows for much higher boosts
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Old 03-20-2012, 05:21 AM
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Originally Posted by Flat out View Post
I have one question, have you ever driven a car with 800hp around town, or in bumper to bumper traffic?, and why is a 3.55 ring gear better than a 3.73 on an 800hp car?
All 3.55:1 rear gears are going to do is kill your torque at the pavement. Less torque means less HP at the tires.

Going with shallower gears gives better gas mileage , better top speed, and it tames wheel slip for non-slick tires.

But onederful has a point. Killing HP at the wheels with shallower gears is counterproductive.
Unless his goal is to have a top speed machine in which he needs the power to fight wind resistance.

Last edited by JIM5.0; 03-20-2012 at 05:37 AM.
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