what are the changes made from the late 80's models and early 90's from the 93-95 5.0's as far as changes made in the engine
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94' vert with polished bomz cai, magnaflow high flow catted x-pipe, flowmaster series 40's, msd blaster coil, 3:73's, 5 speed manual, yellow top optima battery juicing up the stereo system and more hp coming soon!
Nothing but a minor cam change in August '88 and change from forged to hypereutectic pistons in late '92.
So why did they switcd from forged to hypereutic pistons? And whats the difference. I was thinking about rebuilding what do I want to use in it?
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95/5.0 Long tube headers, xpipe, flowmasters, with dumps, 9mm plugg wires, msd cap and rotor, 70mm tb, trick flow intake manifold, under drive pullys, smog elim kit. summit coil, subframe connectors, summit double roller timing chain, and a cam not sure what for cam bc it was in the car when i purchesed it!
So why did they switch from forged to hypereutectic pistons?
Ford, along with every other domestic vehicle manufacturer, is always looking to improve their CAFE (Corporate Average Fuel Economy), manufacturing costs, and emissions. Changing to hypereutectic pistons did all that.
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Originally Posted by lugthug713
And whats the difference?
Hypereutectic pistons are cheaper, lighter, and expand less than forged pistons. Cheaper means less cost to the bottom line. Lighter means less rotating assembly mass and therefore better fuel economy and lower emissions. Less expansion means tighter clearances and therefore less drag from the pistons themselves and the rings, equating to better fuel economy and lower emissions.
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Originally Posted by lugthug713
I was thinking about rebuilding what do I want to use in it?
Hypereutectic pistons can and do live a good, long service life in forced induction and nitrous'd engines, despite what many people say and believe. And they'll live forever in a naturally aspirated engines.
man there is a lot of BS on this page... 93 mustang had the same motor except for the pistons which went to hypereutotic or w/e the word is which is 1 step above ur everyday cast pistons just power was rated less because of the sn 95 coming out had 215 and the way they rated power changed, not to mention the sn-95 has an even worse intake manifold the the foxes ( which were pretty horrible as well) and a bone stock 5.0 will not run 14's they ran a 15.3 or 15.4 maybe put some good tires on it and the right day you could get a 15.2 but right out of the factory with a pro driver try 15.3 as well as the cobra ran a 14.3 with a pro driver the slowest 5.0s would be the earliest 1's early 80s ish sn-95 and foxes are about dead even 95s had bigger mass air adn a few other thigns but weighed more and had worse intakes
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93 lx 5.0, king kobra clutch, bbk 65mm throttle body, 3.73's, electric fan, full length headers, march underdrive pulleys, no smog pump, cats cut off,bbk cold air intake, edelbrock performers, 24lb injectors, 255 lph fuel pump, trick flow track heat intake and crane 2030 13.77@102
man there is a lot of BS on this page... and a bone stock 5.0 will not run 14's they ran a 15.3 or 15.4 maybe put some good tires on it and the right day you could get a 15.2 but right out of the factory with a pro driver try 15.3 as well as the cobra ran a 14.3 with a pro driver
Do you know who Tony DeFeo is? Steve Collison? Bob Cosby? If not, you have no idea what you're talking about.
a bone stock 5.0 will not run 14's they ran a 15.3 or 15.4 maybe put some good tires on it and the right day you could get a 15.2 but right out of the factory with a pro driver try 15.3 as well as the cobra ran a 14.3 with a pro driver the slowest 5.0s would be the earliest 1's early 80s ish sn-95 and foxes are about dead
you have to realize the faster times are most likely with 5 speeds vs an auto. stock for stock a 5 speed 5.0 will go faster than an auto in the 1/4. the slowest my 89gt went was 15.2, and for a few reasons, 1) it was 99+ degrees outside, 2) clutch slipped a little bit, 3) had 17" cobra r's on it which are way heavier than the stock turbines. you also have to consider the amount of abuse the car has taken and the milage that was rapped up on it. if your racing a car that has been ripped to death its gonna be a turd compared to others. 14.8 sec 1/4 time is pretty good for a stock 895.0GT with 90-100,000 miles on it. coupes are just a hair quicker cuz they dont have the hatch weight. driving skills plays a major play in all of the times also.
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84 Predator Mustang GT302R [Gone]
89GT: built fairly good (sold)
92LX: 4cyl to 5.0 conv. completed on the cheap (sold)
88GT: 302/AOD,stock 2.73's and traclok, LT's, custom 2 1/2" exhaust made by me with thrush chambered mufflers dumped at rear axle, hayden electric fan..more to come, daily driver.
also shift points and takeoff rpm had a major roll, if you shift like a grandma at 4g's youre not gonna gain that much. my personal shift point for stock is 5g's, they dont make any power past it, yea they might rap past to almost 7g's but youre not gaining anything but rpm's. also if you just flatline the clutch off the start youre gonna spin like heck , give a little gas then mash it after you start rollin over 8-10mph
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84 Predator Mustang GT302R [Gone]
89GT: built fairly good (sold)
92LX: 4cyl to 5.0 conv. completed on the cheap (sold)
88GT: 302/AOD,stock 2.73's and traclok, LT's, custom 2 1/2" exhaust made by me with thrush chambered mufflers dumped at rear axle, hayden electric fan..more to come, daily driver.
there were official specs with professional drivers... ive never seen a stock 5.0 with stock 3.08 or 2.73 gears run any faster then a 15.3 but i hear ppl's BS all the time about how foxes were a 14 second car out the facotry.. no and the cobras could barely run a low 14 which back then was fast but by todays standards its more like "respectable" instead of real fast
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93 lx 5.0, king kobra clutch, bbk 65mm throttle body, 3.73's, electric fan, full length headers, march underdrive pulleys, no smog pump, cats cut off,bbk cold air intake, edelbrock performers, 24lb injectors, 255 lph fuel pump, trick flow track heat intake and crane 2030 13.77@102
mine had 2.73 gears in it from the factory man. if you dont believe it then so be it. it all depends on the driver, temperature, milage of the car, style of drivetrain (auto or manual) and shift points. i've seen plenty of 87-91 fox's run well under 14.5. hatchback is the heaviest of all, the hatch weighs well over 100lbs vs the trunk of a coupe which weighs maybe 20 lbs. wake up and smell the coffee . would it be any different if i said my 84 predator ran low 13's when i got it? to me and only me the car was considered "stock" since it came out of the aftermarket that way, even though it didnt have stock stuff in either the motor, tranny or gears. but stock for stock you can go lower than 15.3 anyday of the week unless you cant "drive".
besides the point my 89 has a few bolt-ons with stock heads still and runnin 12.8's in the 1/4 with stock suspension. wanna know why? its all in the driver
with all this said i am done bickering cuz it wont solve anything to listen to others that cant stand the facts.
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84 Predator Mustang GT302R [Gone]
89GT: built fairly good (sold)
92LX: 4cyl to 5.0 conv. completed on the cheap (sold)
88GT: 302/AOD,stock 2.73's and traclok, LT's, custom 2 1/2" exhaust made by me with thrush chambered mufflers dumped at rear axle, hayden electric fan..more to come, daily driver.
I've never seen a stock 5.0 with stock 3.08 or 2.73 gears run any faster then a 15.3 but i hear ppl's BS all the time about how foxes were a 14 second car out the factory..
that sounds like a lot of bullshit, and besides being completely stripped isnt like it comes from the factory. the foxes werent that fast and convertibles were heavier than hatchs or if not mayb a few pounds heavier, and even so the hatch is right over the rear wheels whre the weight needs to be. and as for a few bolt ons running 12's unless u consider heads, cam and intake bolt ons ur lying.... i love these cars but at least i have the balls to admit they were dogs out of the factory. and as for the drivers pretty sure my dad ran a 15.0 in mine with some bolt ons and 3.73's and and considering hes owned a 67 mustang with a 390 a chevelle with a 454 and was the son of a mechanic and grew up around cars im pretty sure he can drive better than the average driver. i want even born in the 80's ive seen them with bolt ons runnign 15.3s at kansas city international raceway and ive done my research on these cars ive also talked to pl a guy i know has a mid 12 sec 5.0 ( actually 5.7) they have potentional but were only good for first and second gear from the factory they need some help to have breath on the other end of the track
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93 lx 5.0, king kobra clutch, bbk 65mm throttle body, 3.73's, electric fan, full length headers, march underdrive pulleys, no smog pump, cats cut off,bbk cold air intake, edelbrock performers, 24lb injectors, 255 lph fuel pump, trick flow track heat intake and crane 2030 13.77@102
This is pointless. You're not even old enough to remember '87 Mustangs when they were new. You are ignorant to the fact that they could be ordered (as in built by the "factory", not stripped after they were bought ) without any 'options' and with a 'radio delete'. I say Tony Defeo and you're like a deer in headlights.
Yet you know for sure that 5.0L Mustang could never have been quicker than 15s, because yours isn't. Bahahaha
I dunno why everyone is argueing over 15 vs 14 sec mustangs. We know that the carbed ones were slower than the 86-88's with sd and the 87 to 93's are faster than the sn95 bc of the weight and timing retard in shifts. All I know is that when the 87-89's came out, they were a hell of a lot faster than my cars at the time--1980 z/28 and 1988 Iroc-z so pat yourself on the back for just them being faster than the competition.
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brujones----1995 Mustang GT Convertible 5.0 auto Flowmaster American Thunder cat back system..tail pipes only ...got rid of the flows and put on summitt racing turbo mufflers, MAC offroad h-pipe, smog pump delete pulley, MAC cold air intake, Vermillion Red with black top and white interior with air bag delete. Repainted fenders and added a cobra hood. Got 3.73's ready to install!
. would it be any different if i said my 84 predator ran low 13's when i got it? to me and only me the car was considered "stock" since it came out of the aftermarket that way, even though it didnt have stock stuff in either the motor, tranny or gears. but stock for stock you can go lower than 15.3 anyday of the week unless you cant "drive". 
) without any 'options' and with a 'radio delete'. I say Tony Defeo and you're like a deer in headlights. 
Got 3.73's ready to install!
