whats the difference between the 3.9 and the 3.8?

lwhitetrash88l · May 8th, 2008, 03:33 PM

okay so whats the difference between the 3.9 and the 3.8 engine in the mustang? i thought that the 3.9 was just people making typos or whatever but i keep seeing it everywhere. i always thought they only made the 3.8 whats the 3.9 have that the 3.8 doesnt? besides .1 liters lol

HMUSN · May 8th, 2008, 03:33 PM

.1 nothing else.

WLJohnson05 · May 8th, 2008, 03:35 PM

Originally Posted by HMUSN

.1 nothing else.

+1
ford decided to put the 3.9 in midway through the year so thas why there is both the 04 3.8 and 04 3.9.....but no difference really at all

shadow5403 · May 8th, 2008, 03:47 PM

no power gains just a last minute change Ford decided to do.

whitemustang02 · May 8th, 2008, 04:34 PM

i think this sums it up perfectly
The 04 3.9 is a stroker beast. Don't let that ~.06 liter (Ford rounds up) increase fool you. It will eat you alive. Bad puppy.

Dansby · May 8th, 2008, 04:41 PM

I've heard of 3.9s running 12s stock.

I wish I had that .06L

stang300a · May 8th, 2008, 05:16 PM

Originally Posted by jdansby1

I've heard of 3.9s running 12s stock.

I wish I had that .06L

your absolutely right. my 2004 3.9l ran a 12.2 stock

04DSGV6 · May 8th, 2008, 06:33 PM

Originally Posted by stang300a

your absolutely right. my 2004 3.9l ran a 12.2 stock

yeah mine will be running 10's and doing wheelies once i get my gears.

MakeHerScream04 · May 9th, 2008, 01:08 AM

yours doesn't do wheelies, you must have the 3.8

lwhitetrash88l · May 9th, 2008, 02:56 AM

wow! running 12's bone stock? thats not bad. damn. how can i tell weather or not i have the 3.9 or not?

lwhitetrash88l · May 9th, 2008, 02:57 AM

and if theres really no power difference then wouldnt the 3.8 run 12s also or no?

Onemanzu · May 9th, 2008, 03:01 AM

Originally Posted by whitemustang02

i think this sums it up perfectly
The 04 3.9 is a stroker beast. Don't let that ~.06 liter (Ford rounds up) increase fool you. It will eat you alive. Bad puppy.

Sarcasm

Originally Posted by jdansby1

I've heard of 3.9s running 12s stock.

I wish I had that .06L

Sarcasm

Originally Posted by stang300a

your absolutely right. my 2004 3.9l ran a 12.2 stock

Sarcasm

Originally Posted by 04DSGV6

yeah mine will be running 10's and doing wheelies once i get my gears.

Sarcasm

Originally Posted by MakeHerScream04

yours doesn't do wheelies, you must have the 3.8

Sarcasm

Originally Posted by lwhitetrash88l

wow! running 12's bone stock? thats not bad. damn. how can i tell weather or not i have the 3.9 or not?

Almost sarcasm

Originally Posted by lwhitetrash88l

and if theres really no power difference then wouldnt the 3.8 run 12s also or no?

Total Failure...

04's have a 3.9 no way around it...
i like your new car...

and all ford did was use a different rod, or something or other... not like i care... off of a different essex block that was in production to free up room for there new engines being produced

lwhitetrash88l · May 9th, 2008, 12:09 PM

thanks onemanzu i appreciate a straight answer and the compliment. i bought it with 42k miles on it

uconnV6 · May 21st, 2008, 12:35 PM

i got a v6 2000 stang and my buddy got a 2004 v6 3.9. ya its a close race but since mine a manual, cold air intake and some what of a dual exhuast, i get him, barley.

moond0ggie · May 21st, 2008, 02:48 PM

Jeez, that does it, I'm pulling my wimpy 3.8L & installing a 3.9
Where can I get fender emblems?

04DSGV6 · May 21st, 2008, 04:22 PM

Originally Posted by moond0ggie

Jeez, that does it, I'm pulling my wimpy 3.8L & installing a 3.9
Where can I get fender emblems?

You'd be better off with a vtech

shadow5403 · May 21st, 2008, 04:37 PM

Originally Posted by uconnV6

i got a v6 2000 stang and my buddy got a 2004 v6 3.9. ya its a close race but since mine a manual, cold air intake and some what of a dual exhuast, i get him, barley.

ummm....theres no power difference between the 3.8 and 3.9. If you have a manual and a few mods.....and barely beat him.....you fail at driving.

mustangjeff1997 · May 21st, 2008, 09:08 PM

wow. This has been an enlightening thread lol

04DSGV6 · May 21st, 2008, 09:25 PM

^+1

definitely sticky material in here

95blackbeauty · May 21st, 2008, 09:36 PM

Originally Posted by 04DSGV6

^+1

definitely sticky material in here

+ 1,000,000 on the sticky...

May 8th, 2008, 03:33 PM	#1
lwhitetrash88l Enthusiast 2004 Mustang Join Date: Mar 2007 Location: Florida Posts: 536 iTrader: 0 reviews	whats the difference between the 3.9 and the 3.8? okay so whats the difference between the 3.9 and the 3.8 engine in the mustang? i thought that the 3.9 was just people making typos or whatever but i keep seeing it everywhere. i always thought they only made the 3.8 whats the 3.9 have that the 3.8 doesnt? besides .1 liters lol

May 8th, 2008, 03:33 PM	#2
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	.1 nothing else. __________________

May 8th, 2008, 03:47 PM	#4
shadow5403 Hardcore Enthusiast Join Date: Oct 2007 Location: PA Posts: 2,041 iTrader: 0 reviews	no power gains just a last minute change Ford decided to do. __________________

May 8th, 2008, 04:34 PM	#5
whitemustang02 MM's official Chevy guy 2002 Mustang V6 Join Date: Sep 2007 Location: Rochester, NY Posts: 2,026 iTrader: 0 reviews	i think this sums it up perfectly The 04 3.9 is a stroker beast. Don't let that ~.06 liter (Ford rounds up) increase fool you. It will eat you alive. Bad puppy. __________________ "Speak softly and carry a big stick" - Theodore Roosevelt "Any idiot can make a V8 fast, it takes a real idiot to make a fast V6". '02 Mustang N/A 4.3 stroker away for winter '72 Chevelle project car 454 coming '93 Bronco EFI 351W DD

May 9th, 2008, 01:08 AM	#9
MakeHerScream04 Newbie 2004 mustang Join Date: May 2008 Location: South Florida Scene Posts: 11 iTrader: 0 reviews	yours doesn't do wheelies, you must have the 3.8 __________________ vrroom psst. AKA myPONYisHard

May 8th, 2008, 04:41 PM	#6
Dansby Hardcore Enthusiast Join Date: Mar 2007 Location: Orange, Texas Posts: 2,313 iTrader: 1 reviews	I've heard of 3.9s running 12s stock. I wish I had that .06L

May 9th, 2008, 02:56 AM	#10
lwhitetrash88l Enthusiast 2004 Mustang Join Date: Mar 2007 Location: Florida Posts: 536 iTrader: 0 reviews	wow! running 12's bone stock? thats not bad. damn. how can i tell weather or not i have the 3.9 or not?

May 9th, 2008, 02:57 AM	#11
lwhitetrash88l Enthusiast 2004 Mustang Join Date: Mar 2007 Location: Florida Posts: 536 iTrader: 0 reviews	and if theres really no power difference then wouldnt the 3.8 run 12s also or no?

May 9th, 2008, 12:09 PM	#13
lwhitetrash88l Enthusiast 2004 Mustang Join Date: Mar 2007 Location: Florida Posts: 536 iTrader: 0 reviews	thanks onemanzu i appreciate a straight answer and the compliment. i bought it with 42k miles on it

May 21st, 2008, 12:35 PM	#14
uconnV6 Regular 2000 Mustang V6 Join Date: Apr 2008 Location: Mayport,Fl Posts: 407 iTrader: 0 reviews	i got a v6 2000 stang and my buddy got a 2004 v6 3.9. ya its a close race but since mine a manual, cold air intake and some what of a dual exhuast, i get him, barley.

May 21st, 2008, 02:48 PM	#15
moond0ggie Regular 1998 Mustang V6 5 spd. Join Date: Dec 2007 Location: Discovery Bay, Ca. Posts: 161 iTrader: 0 reviews	Jeez, that does it, I'm pulling my wimpy 3.8L & installing a 3.9 Where can I get fender emblems? __________________

May 21st, 2008, 09:25 PM	#19
04DSGV6 Enthusiast 2004 Mustang V6 Join Date: Oct 2007 Location: Chicago,IL Posts: 546 iTrader: 1 reviews	^+1 definitely sticky material in here

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