The Mustang Forum for Track Enthusiasts

Track Mustangs Online was built specifically for those who track their Mustangs!

Register Log in

GT350 vs. Cobra Jet intake

steveespo

Lord knows I'm a Voodoo Child
Moderator
Messages
3,566
Reaction score
898
Location
NY Metro
CJ is still the King but GT350 manifold is close and fits under those pointy nose GT350's. Normal S550s on the other hand.............................
Especially look at the curve between 6 and 7k RPM, significant area between the two. And the CJ as always is the best Torque maker too, even over the small long runner GT manifold.

 

Gary Smith

TMO Intermediate
Messages
20
Reaction score
32
Location
Berkeley, CA
I have no experience with the CJ manifold but I do know that the GT350 manifold is very good. The only significant modification to my 2017 S550 GT is the Ford Performance Pack 3, which includes a GT350 manifold and induction path (throttle body and air box). Also included is a Ford tune with 7500 rpm rev limit.

At the most recent (and sadly, last) Mojave Magnum my near stock Mustang reached 176 mph (7250 rpm in 5th gear, 3.31 rear gears, 27-inch tires) at 1-1/2 miles.
 
Last edited:

VoodooBoss

Rick
Moderator
Messages
21,326
Reaction score
3,643
Location
90 Miles East of Sonoma Raceway
At the most recent (and sadly, last) Mojave Magnum my near stock Mustang reached 176 mph (7250 rpm in 5th gear, 3.31 rear gears, 27-inch tires) at 1-1/2 miles.
That's impressive! What tires/wheels or any other mods did you have on the car for the run? Did you tape up the hood or any other seams?
 

Gary Smith

TMO Intermediate
Messages
20
Reaction score
32
Location
Berkeley, CA
Apex EC-7 18x9 Wheels with Pirelli P Zero 255/45R18 Tires. Only aero mod was I removed the stock rear spoiler. Increased the speed limit from 155 mph with HPTuners software. X-pipe only exhaust mod. Car seemed completely stable but I have no other experience near this speed. Most of us oldsters have driven cars that felt unstable at much lower speeds.

MM307.jpg
 
Last edited:

TMO Supporting Vendors

Top