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Dec 9, 2007 3:13 PM
#1
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Nov 2007
10
In the series thay change the engine in takumi's AE86 to a nice racing engine that i heard many says is just a fake engine.

I can tell you is't not :)

The one thats gets installed is a 4A-GE engine from TRV used in Formula Atlantic around 1986-1988
thay was at 1600cc or 1,6 Litre and produced around 250bhp @ 11000rpm

i found some specs on it:

Cylinder Firing Order: 1-3-4-2
Engine Bore: 81mm (3.189")
Engine Stroke: 77mm (3.031")
Oil Viscosity: 40 or 50 weight, depending on air temperature
Fuel Octane Rating: 108 prefered
Operating Oil Temperature: 200º-230º F, above 230º there is power loss
Operating Water Temperaure: 180º-200º F
Oil Pump Operating Pressure: 80-90 lbs
Spark Plug: Champion C55C or C57C
Compression Ratio: 12.7:1 maximum
Intake Camshaft Timing: 102º Lobe Center
Exhaust Camshaft Timing: 102º Lobe Center

Picture:




Inside a Formula Atlantic car.

There was another modell of the engine too.. the 4A-GZE
this has a little stronger block and heads that was hollowed out to match the supercharger that was mounted to it and a plenium fitted instead of the funnels on the intake.

This is also a verry popular engine to mount a turbo on instead for the supercharger.

Picture:

Orginal look.


With Turbo

Some more picture:


A hasselgren replica engine fitted inside a AE86

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Dec 9, 2007 10:55 PM
#2

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Jun 2007
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Dude, thats just an awesome engine to put in such a light weight car, giving a nice hp to weight ratio.

I know a bit about cars, but Xoggy, at the last picture can you tell me what purpose the pipes on the left serves, cause they seem odd to me. Is it some chambers where the air is taken in? I've seen it on some other engines where they are pointing upwards instead of sideways as on this one.
Dec 9, 2007 11:57 PM
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Nov 2007
10
Cheesebaron said:
Dude, thats just an awesome engine to put in such a light weight car, giving a nice hp to weight ratio.

I know a bit about cars, but Xoggy, at the last picture can you tell me what purpose the pipes on the left serves, cause they seem odd to me. Is it some chambers where the air is taken in? I've seen it on some other engines where they are pointing upwards instead of sideways as on this one.

Do you mean the carbon fiber funnels?
Dec 10, 2007 11:44 AM
#4

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Jun 2007
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Xoggy said:

Do you mean the carbon fiber funnels?


Yeah and the pipes going into the motor, what purpose does it serve?
Dec 10, 2007 11:57 AM
#5
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Nov 2007
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Cheesebaron said:
Xoggy said:

Do you mean the carbon fiber funnels?


Yeah and the pipes going into the motor, what purpose does it serve?

The funnels thats you can see mounted on that picture makes a nice slip for the air to go into the intaken and allso makes the intake longer to reatch higher gas (Fuel and air) speeds (= move the horsepower up to higer revs)

The aluminium fuelrail that you can se mounted on the left of the funnels is a one shoot injector driven by a mecanical pump
this a old way that was used before the electronical injection was that good as thay are today.
Dec 11, 2007 11:10 AM
#6

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Jun 2007
890
Ahh so my thoughts were right. The cars i've seen them on before were hotrods and such cars - so I guess they aren't fuel injected either.

So I guess if a car isn't fuel-injected then it has a carburetor to adjust the mixture of air and gas, that the engine needs to make those explosions to drive it...
Dec 19, 2007 12:12 PM
#7
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Nov 2007
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Cheesebaron said:
Ahh so my thoughts were right. The cars i've seen them on before were hotrods and such cars - so I guess they aren't fuel injected either.


Well both this one and the one you maybee have seen on hotrods looks like this

Are both fuelinjection systems and not carburator systems

In the picture i posted is a way classic and old fuelinjection systems that has the name Hilborn, way popular in dragracing in the 50 - 70'is

Cheesebaron said:

So I guess if a car isn't fuel-injected then it has a carburetor to adjust the mixture of air and gas, that the engine needs to make those explosions to drive it...

Correct, instead of meashuring the ammount of air passing by and deliver the right amount of fuel into the intake a carb usese the airflow to drag some fuel with it into the intake.

Thats why is damn hard to tune a carb exactly right.
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