'05 gt head flow numbers
Registered User
Joined: Oct 2004
Posts: 236
From: Costa Mesa, CA no more!
Re: '05 gt head flow numbers
Originally Posted by Ponyhntr
Cobras are Mustangs! 
Yeah, all Cobra's, Mustang GT's, and Mach 1's had aluminum blocks except the 03-04 Cobra's.
Yeah, all Cobra's, Mustang GT's, and Mach 1's had aluminum blocks except the 03-04 Cobra's.
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Joined: Dec 2006
Posts: 44
i am not here to troll.
an 03-04 terminator makes 370-390 to the wheels minimum. the factory rating is a lie. 425 flywheel is more like it.
a roush 05 mustang gt makes 450 rwhp with 6psi.
a bolton 05 mustang GT makes 345rwhp/332 rwtq with cams.
3v heads flow 230cfm
96-98 4v flow 249
99-04 4v flow 240
navi's flow 240
00 cobra 'r' flow ~269
06 ford gt flow 310 cfm
06 gt500 300 cfm
a stock 07 mustang gt makes 270 rwhp stock
a stock 99-01 cobra 4v n/a the same
a stock terminator 370-390 rwhp stock
an 06 gt500 425rwhp stock
an 06 ford gt 505rwhp stock
a 4.6l 3v blown runs 10.9 @ 146 mph stock cams.
ported heads,longtubes,oversize throttle body, CAI, mufflers. daily driver in chicago. stock chasis w/roll cage,suspension. full weight car 3500 lbs.
a 4.6l terminator with 12 psi, nitrous longtubes, street exhaust makes 520rwhp with the tires spinning on the dyno. runs 10's. that is a convertible in my car club. the big boys make 700-800 rwhp on the street with a turbo terminator. totally street driven non radical.
an 07 gt500 with whipple low drag charger, CAI, oversize throttle body, tune makes 810 rwhp. go to whipple site and verify. it really does and the drivetrain can handle it. that is totally stock except the noted items.
the same kit has not been tested on a ford GT.
there is some number and facts.
i make 340 rwtq SAE with a near stock truck 5.4 3v. wait until i fab my new intake. the hp is there. later guys.
an 03-04 terminator makes 370-390 to the wheels minimum. the factory rating is a lie. 425 flywheel is more like it.
a roush 05 mustang gt makes 450 rwhp with 6psi.
a bolton 05 mustang GT makes 345rwhp/332 rwtq with cams.
3v heads flow 230cfm
96-98 4v flow 249
99-04 4v flow 240
navi's flow 240
00 cobra 'r' flow ~269
06 ford gt flow 310 cfm
06 gt500 300 cfm
a stock 07 mustang gt makes 270 rwhp stock
a stock 99-01 cobra 4v n/a the same
a stock terminator 370-390 rwhp stock
an 06 gt500 425rwhp stock
an 06 ford gt 505rwhp stock
a 4.6l 3v blown runs 10.9 @ 146 mph stock cams.
ported heads,longtubes,oversize throttle body, CAI, mufflers. daily driver in chicago. stock chasis w/roll cage,suspension. full weight car 3500 lbs.
a 4.6l terminator with 12 psi, nitrous longtubes, street exhaust makes 520rwhp with the tires spinning on the dyno. runs 10's. that is a convertible in my car club. the big boys make 700-800 rwhp on the street with a turbo terminator. totally street driven non radical.
an 07 gt500 with whipple low drag charger, CAI, oversize throttle body, tune makes 810 rwhp. go to whipple site and verify. it really does and the drivetrain can handle it. that is totally stock except the noted items.
the same kit has not been tested on a ford GT.
there is some number and facts.
i make 340 rwtq SAE with a near stock truck 5.4 3v. wait until i fab my new intake. the hp is there. later guys.
Registered User
Joined: Dec 2006
Posts: 44
one last thing. i am an auto. i dump every LT-1 car i have raced. all motor. hard to beat 400 flywheel torque with 5.7 liters. i have never beaten an LS car.
i make 325 rwtq @ 3000, 340.1 rwtq @ 3650 and 300 rwtq @ 4200. not much for a power band right now. i hang through 1st on an LS car.
i make 325 rwtq @ 3000, 340.1 rwtq @ 3650 and 300 rwtq @ 4200. not much for a power band right now. i hang through 1st on an LS car.
Last edited by assasinator; Dec 23, 2006 at 03:30 PM.
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Joined: Dec 2006
Posts: 44
sieey, i was on internet search looking for something and this site popped up. so i commented. later dude. there is no other car that ford boys fear and respect like an LS camaro. they bitch and moan on mustang GT site about not having any power to compete all-motor. so i did this swap to show them it can be done. they still bitch and moan without doing anything about it.
they could learn a lot from you guys. if you ain't got it.... make it.
btw an aussie 5.4 4v makes 388 flywheel hp/365 fltwheel tq.with essentially 03/04 terminator heads.
they could learn a lot from you guys. if you ain't got it.... make it.
btw an aussie 5.4 4v makes 388 flywheel hp/365 fltwheel tq.with essentially 03/04 terminator heads.
Last edited by assasinator; Dec 23, 2006 at 03:37 PM.
Registered User
Joined: May 2004
Posts: 2,001
From: Bay Area, CA
You would love the motor we are dumping in the bosses shop truck
Teksid 4.6L block, cobra crank, manley rods, mahle pistons, ported navi heads, custom intake, procharger F1A, FR500 cam kit, etc....this in going into an f-150 with company stickers on the side lol
Teksid 4.6L block, cobra crank, manley rods, mahle pistons, ported navi heads, custom intake, procharger F1A, FR500 cam kit, etc....this in going into an f-150 with company stickers on the side lol
Registered User
Joined: Oct 2006
Posts: 579
From: northern indiana
old boss had a 03 cobra. 355 hp to wheels. added long tube headres gained 1 hp. put on larger air intake and chip and smaller pully and got right at 510rwhp. blower effiency about maxed out. installed kenne bell and huge throttle body and will put out over 670rwhp all day long with no change in manners.
did a multitude of swaps after that with a simple plan.
1. kenne bell
2. programming
3. cat back exhaust
4. air intake
never under 625rwhp. and does that number with lower boost numbers than the eaton.
please don't get me wrong i am a chevy die hard, but the 03 cobra in my opinion is the baddest factory muscle car for the money ever. the engine are almost indestructible and you could not buy one done the same for a chevy under $10,000
the lightning with the 5.4 is the next baddest per dollar. add a kenne bell and go like heck.
if you have time check out some of the ford stuff and be amazed at what has been done with the 4.6ltr. just remember the cobra motor is nothing like the mustang motor.
did a multitude of swaps after that with a simple plan.
1. kenne bell
2. programming
3. cat back exhaust
4. air intake
never under 625rwhp. and does that number with lower boost numbers than the eaton.
please don't get me wrong i am a chevy die hard, but the 03 cobra in my opinion is the baddest factory muscle car for the money ever. the engine are almost indestructible and you could not buy one done the same for a chevy under $10,000
the lightning with the 5.4 is the next baddest per dollar. add a kenne bell and go like heck.
if you have time check out some of the ford stuff and be amazed at what has been done with the 4.6ltr. just remember the cobra motor is nothing like the mustang motor.
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Joined: Dec 2006
Posts: 44
i despise add-ons. i come from the old days where we went at all-motor. i cannot expect to equal a 6.0l or larger LS,LT, or anything else with good heads that is too big. but i am going after 5.7l LS.
of course i respect the 03-04 cobras, i have no choice. but i am all motor. Al Papito is in the 625 rwhp rangge with his 5.5l modular. i cannot challenge or even approach that. he has nascar porters doing his work. but i can approach a 5.7l LS with equal mods. that's my definition of fun. this new generation of mustang owner has no idea how to make power, or any of the dynamic priciples. no clue. he thinks a KB and bolt-ons is cool. i hate that crap. they don't know how to get out the die grinder and earn it. even small flow gains from 3 angle, back cut valves,bowl work, polishing, blending, short side, and guide boss work are alien to them.
you guys have them snookered. scared. they compare themselves to 4cyl and 6 cyl cars. "can i beat a G-35" is typical. they can't beat a G-35. hopeless....
of course i respect the 03-04 cobras, i have no choice. but i am all motor. Al Papito is in the 625 rwhp rangge with his 5.5l modular. i cannot challenge or even approach that. he has nascar porters doing his work. but i can approach a 5.7l LS with equal mods. that's my definition of fun. this new generation of mustang owner has no idea how to make power, or any of the dynamic priciples. no clue. he thinks a KB and bolt-ons is cool. i hate that crap. they don't know how to get out the die grinder and earn it. even small flow gains from 3 angle, back cut valves,bowl work, polishing, blending, short side, and guide boss work are alien to them.
you guys have them snookered. scared. they compare themselves to 4cyl and 6 cyl cars. "can i beat a G-35" is typical. they can't beat a G-35. hopeless....