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Post Info TOPIC: Downs Upper intake?


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Downs Upper intake?


Downs upper intake. Ok long story short I just bought a Gt with some work done to it and I have been hearing to dump the Downs upper intake for a Cobra or GT40. Is this right or can I keep it. Is the intake really taken power away from the car?? Thank you Mike.

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88 gt 5spd port and pol E7 heads,Port and pol cobra lower intake and downs upper intake,b303 cam,75mm Throttle body,converted to mass air, bbk cold air,24lb injectors, new t5 Trany with pro 5.0 shifter,Bbk headers offroad h pipe with Flowmasters.
JIM


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Keep the intake,Pick up some heads put an F cam in it,and that car will move.

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that upper intake is for a car with a blower or turbos so with short intake runners thats a real low rpm setup you have and that's not what you want unless you wanna make power at 1500 rpms

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1993 cobra #2354 ( 1 of 362) ...04 lariat f350 crew cab diesal dually full 09 conversion...79 bronco 6.0 diesel conversion..more to come
JIM


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^^^He is right,But when i had that car and it had a set of jr heads and a f cam that car was fast for the setup.

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snakebite wrote:

that upper intake is for a car with a blower or turbos so with short intake runners thats a real low rpm setup you have and that's not what you want unless you wanna make power at 1500 rpms




what he said ^^

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the stock heads on ur motor are the real bottle neck.

any aftermarket head is better than E7's

i would get some gt40p's and add boost like said above.

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Short runner intakes Like the Down's Ford one are to help the engine breath better @ higher RPM's . However you will sacrafice low end torque which is not ideal for a street car . You will likely find that providing you have a GT40 or cobra lower ..... that an explorer / GT40/ or cobra upper will make the car respond better at lower RPM's . In my opinion the Downs is for racing and would work better with a power adder like already stated .

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2002 GT " SOLD " !!!


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^ hes right i put a down box on my blower car and it pulls a little harder up top but i def lost low end torque and its noticible because before the gt40 had some low end nuts and now it dont as much at all

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Yea I found a GT40 and will be swaping out the downs. I hope I can do it this weekend. Thanx for all the input on this..

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88 gt 5spd port and pol E7 heads,Port and pol cobra lower intake and downs upper intake,b303 cam,75mm Throttle body,converted to mass air, bbk cold air,24lb injectors, new t5 Trany with pro 5.0 shifter,Bbk headers offroad h pipe with Flowmasters.
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