Porting lower intake?? Velocity vs. Flow

Dark_5.0 · 11-11-2002, 12:26 AM

I am removing the intake off fo my 5.0 to fix an oil leak. At the same time I will be installing an E-303 cam. My mods are.

Ported, polished and milled E7's
Explore intake with 65mm TB
Full exhaust, Gears, slicks etc.....

The ports on the intake are way smaller than the ports on my ported E7's. Do I want to maintane the velocity that the small ports on the intake provide or port match my lower intake to my heads to promote better flow.

Thanks,

84LX89GT · 11-11-2002, 02:42 AM

If i were you i'd much rather have the smooth transition and flow of a matched intake/head. The only concerns over velocity would be if you had to tow something while retaining low gears or going for maximum fuel economy. It sounds like your engine would benefit from the increased power band of more flow because of the gears and other mods.
I would definately port match them if i were you, just my opinion though.

11-11-2002, 12:26 AM	#1
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Porting lower intake?? Velocity vs. Flow I am removing the intake off fo my 5.0 to fix an oil leak. At the same time I will be installing an E-303 cam. My mods are. Ported, polished and milled E7's Explore intake with 65mm TB Full exhaust, Gears, slicks etc..... The ports on the intake are way smaller than the ports on my ported E7's. Do I want to maintane the velocity that the small ports on the intake provide or port match my lower intake to my heads to promote better flow. Thanks, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

11-11-2002, 02:42 AM	#2
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	If i were you i'd much rather have the smooth transition and flow of a matched intake/head. The only concerns over velocity would be if you had to tow something while retaining low gears or going for maximum fuel economy. It sounds like your engine would benefit from the increased power band of more flow because of the gears and other mods. I would definately port match them if i were you, just my opinion though. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

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