89 mustang Cobra intake question
- Thread starter Fast89GWILL
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No, you need the lower intake as well. The port configuration is different.
Stock on top, GT40/Cobra/Explorer on bottom
Stock on top, GT40/Cobra/Explorer on bottom
I took that picture over 20 years ago on my living room carpet...now American Muscle is using it. 
I took that picture over 20 years ago on my living room carpet...now American Muscle is using it.
I’d say they owe you some royalties! Or at least a discount!
marcelo
Active Member
just wondering ... on a mostly stock engine .. does de GT40 Intake (Tubular upper) make more power or its just the better look?? and whats to power/rpm range of the GT 40 ..it has pretty small ports and not that much Material to port them ..
On mostly stock, 10-15 hp over stock intake. You can definitely port the lower and get it to flow in the area of the top aftermarket intakes. Just search for "TMoss ported lower" and you'll find all the info you need.
stock GT40 intake flows about 205 cfm. Ported, they flow about 250 cfm.
E7 heads flow about 165 cfm.
I forget the numbers on the stock HO intake, but I want to say it was around 140 cfm.
marcelo
Active Member
so you need cam and heads to get the best out of it ... if Heads just flow 165cfm ..there will be almost no power gain.. ok..
Seat of the pants I had an explorer intake on an other wise stock engine with exhaust and regular bolt ons and it definitely felt better upstairs. Again air only flows as much as it’s biggest restriction
I did a cobra on my stock engine. I definitely felt it over 3k rpm.
I'm planning on using a ported explorer with cam and TFS170s. Should be a fun street combo
I'm planning on using a ported explorer with cam and TFS170s. Should be a fun street combo
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