4.6 Liter Horsepower - Ford Mustang Forum
Closed Thread
 
LinkBack Thread Tools
post #1 of 25 (permalink) Old 05-19-2003 Thread Starter
Rookie
 
ZORLAC69's Avatar
 
Joined: May 2003
Location: NEW HAMPSHIRE
Posts: 4
 
Cool 4.6 Liter Horsepower

I just bought a 1998 GT, I've always owned Chevrolet's, because they're cheap to modify and build horsepower. What can be done
for Cheap Mods on the 4.6 Gt? I love my new car, but am very
suprised that it only has 215hp and under 300ft/lbs or torque, when
you can buy a TrailBlazer with a Straight 6 that puts out 275hp
and well over 300ft/lbs of torque.
ZORLAC69 is offline  
Sponsored Links
Advertisement
 
post #2 of 25 (permalink) Old 05-19-2003
Apprentice
 
4.6Liter's Avatar
 
Joined: Dec 2002
Location: Dallas, TX
Posts: 69
 
For cheap bolt-ons you could do gears, pullies, timing adjuster, exhaust etc.

There is also a head swap kit for your car Ford changed heads in 1999 260hp.

2003 GT 5 Speed
Amsoil Synthetic Fluids
K&N filter
Motorsport 4.10 Gears
Steeda Pullies
Steeda Timing Adjuster
Steeda Sport Springs
FMS Aluminum Driveshaft
Maximum Motorsports FL SFC
Bassani Aft-Cat
Bassani X-Pipe
4.6Liter is offline  
post #3 of 25 (permalink) Old 05-19-2003
Apprentice
4.6L Member
 
rnner3200's Avatar
 
Joined: Feb 2003
Location: Bass Harbor
Posts: 192
 
Send a message via AIM to rnner3200
although we dontmake much hp i've still beaten many 5.0L mustangs, many a honda's and stayed damn close to z28's and others of the sportscar world. i'm happy for the $ i put into the car.

1997 Mustang GT, 5spd, red, 17in wheel option, firestone potenza re730's, Magnaflow x-pipe w/cats,
Mac catback with 3 1/2 inc chromes, 3.73 gears, welded and bolted subframe connectors, centerforce dual friction clutch, 5.0 power tower shifter, pioneer headunit, white face guages, Ported Upper Intake, Radar Jammer!, K&n, Yellow live wires, Billet Aluminum Wire Seperators, Screamin Demon coil packs, Autolite double platnium plugs.
rnner3200 is offline  
post #4 of 25 (permalink) Old 05-19-2003
Made Member
 
Mike Kievit's Avatar
 
Joined: Oct 2002
Posts: 263
 
The above is pretty much it. There is a new intake mod. It was in either this months MM&FF or 5.0 magazine. They polish the upper intake and it nets you about 10 HP.
A filter charger helps also.

MK
Mike Kievit is offline  
post #5 of 25 (permalink) Old 05-20-2003
Top Dog
4.6L Member
 
1998GT's Avatar
 
Joined: Sep 2002
Location: Philippines
Posts: 3,528
 
Send a message via AIM to 1998GT
Re: 4.6 Liter Horsepower

Quote:
Originally posted by ZORLAC69
I just bought a 1998 GT, I've always owned Chevrolet's, because they're cheap to modify and build horsepower. What can be done
for Cheap Mods on the 4.6 Gt? I love my new car, but am very
suprised that it only has 215hp and under 300ft/lbs or torque, when
you can buy a TrailBlazer with a Straight 6 that puts out 275hp
and well over 300ft/lbs of torque.
a trailblazer would get spanked by a 98 gt. With a stage 1 turbo kit seen in MM&FF you can run over 430hp and over 530 pounds of torque on pump gas. 8psi...

Join Date: Sept 02
1998GT is offline  
post #6 of 25 (permalink) Old 05-20-2003
Top Dog
4.6L Member
 
1998GT's Avatar
 
Joined: Sep 2002
Location: Philippines
Posts: 3,528
 
Send a message via AIM to 1998GT
oh and its 225hp

Join Date: Sept 02
1998GT is offline  
post #7 of 25 (permalink) Old 05-20-2003
Made Member
4.6L Member
 
Twokingsracer's Avatar
 
Joined: Nov 2002
Location: Joplin
Posts: 1,402
 
Send a message via Yahoo to Twokingsracer
Porting the 98 manifold??? Gears, O/R H pipe, drag radials, good CAI...that will get you into the mid to low 14's with no problem. There are also pullies and timing adjusters, that can get you a little more. The heads are the restriction on our cars. But they respond well to forced induction, which isnt cheap, but easy to do. There is the headswap option as noted above, and there are also FRPP racing heads and manifold that are available, but expensive.

Hey Luke you had any probs with your Xenon lights? How you like em?

'97 GT with 80mm C&L MAF, C&LTrue-Flow CAI, MAC 70mm TB, Superchip, 180 thermo, B&M Ripper, King Cobra Clutch, FRPP aluminum quad/adj cable, MAC O/R H pipe, MIL's, Flows, Granatelli Solid control arms, FRPP 4.10's, FRPP aluminum driveshaft, Fidanza aluminum flywheel, FRPP 9mm wires, TMD aluminum U/D pulleys, Steeda full length SFC's (welded in), and 17" polished aluminum Cobra wheels with Nitto 555 Extremes, Kenwood/Alpine sound. Waiting for install: PI intake.
Twokingsracer is offline  
post #8 of 25 (permalink) Old 05-20-2003
Made Member
4.6L Member
 
David L Gary's Avatar
 
Joined: Apr 2002
Location: Millsap
Posts: 393
 
Thumbs up HP

Don't forget that swapping in the PI cams is cheap and easy HP.:green :green :green
David L Gary is offline  
post #9 of 25 (permalink) Old 05-20-2003
Apprentice
4.6L Member
 
1Sicgt's Avatar
 
Joined: Apr 2003
Location: Patterson
Posts: 164
 
Send a message via AIM to 1Sicgt Send a message via Yahoo to 1Sicgt
you mean heads?

'97 Autumn Orange GT Open Track Car
'99 Autumn Orange SVT Contour
1Sicgt is offline  
Made Member
4.6L Member
 
hmarv347's Avatar
 
Joined: Aug 2002
Location: Summerville
Posts: 1,283
 
Re: 4.6 Liter Horsepower

Quote:
Originally posted by ZORLAC69
I just bought a 1998 GT, I've always owned Chevrolet's, because they're cheap to modify and build horsepower. What can be done
for Cheap Mods on the 4.6 Gt? I love my new car, but am very
suprised that it only has 215hp and under 300ft/lbs or torque, when
you can buy a TrailBlazer with a Straight 6 that puts out 275hp
and well over 300ft/lbs of torque.
Ok, the trailblazer did not have 275 hp from a straight 6 in 98 the s10 blazer had 190HP in 98 and the trailblazer wasn't offered. Compare the GT with other vehicles in the same years. The Z28 had 305HP from a 5.7L V8 and was heavier than the GT by over 200 lbs. The 2002 Trailblazer also has 270Hp and 275 ft lbs torque and weighs 4442 lbs.
Torque for the 98 GT is 290 Ft lbs and 225 HP from a 281 Cu In motor.
the 5.7 350 had 335 ft lbs torque. I think you would enjoy the GT much better than the trailblazer. More heads will turn.

2004 DSG Mach 1 w/IUP 5 speed (Born on Date: 10/09/03)
Dyno - 1/28/04 (1300 miles)K&N Drop-in Filter, SAE - 273.8 rwhp 302.5 rwtq
Dyno - 3/6/04 (3400 miles)K&N AirCharger, SAE - 282.5 rwhp 312.6 rwtq
Dyno 4/22/05 304rwhp 326rwtq
hmarv347 is offline  
Made Member
4.6L Member
 
David L Gary's Avatar
 
Joined: Apr 2002
Location: Millsap
Posts: 393
 
Question HP

No I ment a cam swap. The PI cams have a lot more lift. About 15 rwhp on the cam swap. Takes less than a day and doesn't cost much.
David L Gary is offline  
Top Dog
4.6L Member
 
1998GT's Avatar
 
Joined: Sep 2002
Location: Philippines
Posts: 3,528
 
Send a message via AIM to 1998GT
The headswap is a more efficiant swap..most of the power that the 99+ engines have over the older 4.6 engines is because of the rectangular ports and improved combustion chamber design.

4.6 Cylinder Head Flow Data

Lift STock Ported
'96 '01 '96 '01
.100 46 54 61 60
.150 66.6 78 89 86
.200 84.5 98 111.5 116
.250 103.5 119 131.3 141
.300 121.3 135 146 160
.350 134.7 145 159.6 169
.400 147 156 173.3 176
.450 159.4 161 185 182
.500 170 166 188 185
.550 176 168 192.5 186



With a good set of ported heads, you could see some big horsepower gains.. I remember seeing a set of brand new ported PI heads with everything for 1300. I hope thise informatino helps.. took me forever to type up.

~luke

Join Date: Sept 02
1998GT is offline  
Top Dog
4.6L Member
 
1998GT's Avatar
 
Joined: Sep 2002
Location: Philippines
Posts: 3,528
 
Send a message via AIM to 1998GT
Quote:
Originally posted by 1998GT
The headswap is a more efficiant swap..most of the power that the 99+ engines have over the older 4.6 engines is because of the rectangular ports and improved combustion chamber design.

4.6 Cylinder Head Flow Data

Lift STock Ported
'96 '01 '96 '01
.100 46 54 / 61 60
.150 66.6 78 / 89 86
.200 84.5 98 / 111.5 116
.250 103.5 119 / 131.3 141
.300 121.3 135 / 146 160
.350 134.7 145 / 159.6 169
.400 147 156 / 173.3 176
.450 159.4 161 / 185 182
.500 170 166 / 188 185
.550 176 168 / 192.5 186



With a good set of ported heads, you could see some big horsepower gains.. I remember seeing a set of brand new ported PI heads with everything for 1300. I hope thise informatino helps.. took me forever to type up.

~luke

Join Date: Sept 02
1998GT is offline  
post #14 of 25 (permalink) Old 05-21-2003 Thread Starter
Rookie
 
ZORLAC69's Avatar
 
Joined: May 2003
Location: NEW HAMPSHIRE
Posts: 4
 
Thanks for all the tips, to all. After getting all the information
on Tweeking my new (to me) 1998 Gt, I finally got to pick it
up last night and drive it. You guys will think Im a retard, but
I never drove it before I bought it, Infact the last Gt I drove
was my friends 96 5.0, I believe. Anyway it was the same
body as the 98, but with a 5.0.
The car was so Mint, I new it was well taken care of.
Im not disappointed at all, in fact the 225Hp the car makes
is well tuned with the Ring/Pinion and Tranny. The car is as
tite as can be, and the over all ride blows my 86 Corvette
away. This car is 100% bone stock and I am truely impressed
with this car.

Thanks for all your Responses,
Steve S
ZORLAC69 is offline  
Top Dog
4.6L Member
 
1998GT's Avatar
 
Joined: Sep 2002
Location: Philippines
Posts: 3,528
 
Send a message via AIM to 1998GT
96 was a 4.6 liter too except it was 10 hp less.

Join Date: Sept 02
1998GT is offline  
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183