89 mustang Cobra intake question

Fast89GWILL

New Member

Mar 25, 2019

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Charlotte

Jul 13, 2019

#1

• Jul 13, 2019

• #1

Hi,

Have an 89 mustang 5. 0 and am eyeing up a upper cobra intake on eBay.

Will this just bolt up to a stock lower intake?

Thanks for all the help!
Thanks!

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Jul 13, 2019

#2

• Jul 13, 2019

• #2

No, you need the lower intake as well. The port configuration is different.

Stock on top, GT40/Cobra/Explorer on bottom

 

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Fast89GWILL

New Member

Mar 25, 2019

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Charlotte

Jul 13, 2019

#3

• Jul 13, 2019

• #3

Great point of reference. Thank you!

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Jul 13, 2019

#4

• Jul 13, 2019

• #4

I took that picture over 20 years ago on my living room carpet...now American Muscle is using it.

 

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Rdub6

So while I wait to figure out my rear end issues

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Jul 13, 2019

#5

• Jul 13, 2019

• #5

Mustang5L5 said:

I took that picture over 20 years ago on my living room carpet...now American Muscle is using it.

Click to expand...

I’d say they owe you some royalties! Or at least a discount!

 

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marcelo

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Feb 25, 2018

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Quepos, Costa Rica, Central America

Jul 15, 2019

#6

• Jul 15, 2019

• #6

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 ..

 

deathb4dismount

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Jul 15, 2019

#7

• Jul 15, 2019

• #7

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.

 

Mustang5L5

That is…until I whipped out my Bissell

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Jul 15, 2019

#8

• Jul 15, 2019

• #8

marcelo said:

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 ..

Click to expand...

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.

 

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marcelo

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Feb 25, 2018

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Jul 15, 2019

#9

• Jul 15, 2019

• #9

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..

 

TOOLOW91

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Jul 15, 2019

#10

• Jul 15, 2019

• #10

marcelo said:

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..

Click to expand...

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

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Jul 15, 2019

#11

• Jul 15, 2019

• #11

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