which one would work better with a stock cam and Thumper heads with 1.7 RR. and the rest of my bolt-ons in my sig?
GT-40 or Cobra intake?
- Thread starter willys1
- Start date
_jb_
New Member
Aside from something other than what you listed, the GT40 flows better than a Cobra, even though the Cobra is basically a cast version of it. That said, you can probably port the Cobra more than you could the GT40, and after the porting you'd probably spend about as much if not a tad less than you would on a GT40.
Either one. They vary more by casting differences than anything else. I've got a flow bench comparison where a GT40 flows 206cfm and an Explorer flows 209cfm.
They just had a test a few months back in one of the mag's on intakes!! The GT-40 flowed the best down low and second best up top!! It lost to the new BBK!! The performer was menza.menza!!5spd GT said:
just4bob50
Active Member
Almost every test i can remeber reading in 5.0 or MMFF the GT-40 out performed the performer intake. while it is true that you are unable to port the GT-40 upper and it costs more, it is still the coolest looking intake for the 5.0 if thats important to you. I bought mine used for 350$.
Michael Yount
Mustang Master
Pick the one you like the look of the best - flow is a toss up; the both share the same lower, and the lower is the bottleneck. So the upper doesn't really matter. Aesthetics. Cost. Availability. Those should drive your decision among these two. The tubular upper on the GT40 weighs a few pounds less than the Cobra's upper casting....
Michael Yount
Mustang Master
The cam used in the test is a pretty mild one -- with more cam, and the ability to make more power up top, the other intakes would likely show more of an advantage -- but as you can see - you've got to be making significant power up beyond 5600-5800 rpm to take advantage of them.
The test also seems to de-bunk the notion that the stock manifold and the GT40 family are significantly better on the bottom end than some of the aftermarket units. Tom - any thoughts on this? One way to look at it might be that the Performer/BBK/TFS won't hurt you on the bottom -- and if you keep adding components for more flow, eventually they'll help you on the top. That would seem to point in the direction of buying the GT40/Cobra/Explorer if you can get a better deal on it and if the package you're putting together is all done by 5500 rpm.
Tom -- what are your thoughts?
The test also seems to de-bunk the notion that the stock manifold and the GT40 family are significantly better on the bottom end than some of the aftermarket units. Tom - any thoughts on this? One way to look at it might be that the Performer/BBK/TFS won't hurt you on the bottom -- and if you keep adding components for more flow, eventually they'll help you on the top. That would seem to point in the direction of buying the GT40/Cobra/Explorer if you can get a better deal on it and if the package you're putting together is all done by 5500 rpm.
Tom -- what are your thoughts?
04sleeper
Founding Member
I'm with Michael on this one. I do like the looks of the GT-40 and it is lighter and easier to bolt on than the Edelbrock with the side plate and center bolt.Michael Yount said:
If you can find a good deal on one then it might be the way to go.
How's everything else running Billy?
Get that fuel pressure gauge mounted yet?
Hey Kevin!! I got you phone call,Im busy like a bast@rd these days..Im a full time student and am focusing on it!! Nope89sleeper said:
I'LL call you in a few days!! Im really high on the GT-40,,but the price of a new one is bringing me down 
Michael Yount
Mustang Master
I guess the Explorer would be the budget version willys - similar performance but with no GT40 aesthetic. If you have to pass emissions there in Jersey, be careful what year you get. Otherwise, keep saving your pennies.
Michael Yount
Mustang Master
No - Ford makes Explorers. 
Does he port them? Yes -- the lower on the GT40, the Cobra and Explorer ARE ALL THE SAME.
Does he port them? Yes -- the lower on the GT40, the Cobra and Explorer ARE ALL THE SAME.
LOL,,you know what I mean!!Michael Yount said:No - Ford makes Explorers.
Does he port them? Yes -- the lower on the GT40, the Cobra and Explorer ARE ALL THE SAME.
04sleeper
Founding Member
Yeah I know what you mean. Just keep your eyes open for a used one andwillys1 said:Hey Kevin!! I got you phone call,Im busy like a bast@rd these days..Im a full time student and am focusing on it!! Nope
I will for you as well.
Give me a call when you get a chance.
