Mods for a 98 GT

FivepointOH · 04-03-2001, 07:03 PM

My friend has a 98 gt, it is a 5spd with full exhaust(headers, offroad h, flows), suspension and shifter. He wants to know of some more mods he can do for power(doesnt want gears, I know i keep telling him they feel like 50hp but he doesn't want them), he said something about a cobra intake but that it cost $900 for the intake?!? Do they make new heads or intake for his car and how much are they? I know nothing about modular engines(as u can see i have a 5.0)

------------------
92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

04-03-2001, 07:16 PM

Has he considered 99GT heads?

04-04-2001, 06:43 AM

Why not gears?! I just got 3.73's put in my '97 and it made a world of a difference. I also haven't seen ANY drop in MPG. This should definitely be his next mod. I'm planning to go to the track (weather permitting) Thursday so I'll let you know what kind of difference in time they made.

If he doesn't want gears, then I'd save some money up and purchase the 99+ heads.

Other good bolt-ons are the Steeda timing adjuster, pullies, and a K&N.

------------------
------------
1997 GT Flowmasters,K&N,3.27 gears
RedSOHC

91LX2Bfast · 04-04-2001, 08:55 AM

The only intake for the 4.6 2V is the FRPP intake and its something like $1500 or something.
He could score a set of new/complete PI heads for around $570. They should add a firm 35HP and really help abouve 4000 rpm. If he wants to get serious about the head swap, there is a nice installation article on www.tccoa.com that should cover most of what he needs.
He could always go for pulleys and a MAF. Tell him keep away from a TB as that won't do anything.

------------------
2001 SVT Lightning (red): Many mods to come- Let the Vette killer begin to take shape

1997 Thunderbird 4.6L: Dynomax exhaust, Mustang intake tube, SVT Lightning 80mm MAF, Accufab MAF adapter, 7" Auto-physics powerstack filter, ram air, B&M 24,000GVW trans cooler, Custom chip, FMS 9mm wires, many more to come...

No Longer own: 91 LX 5.0L 5 spd

FivepointOH · 04-04-2001, 01:31 PM

How much do the 99+ heads cost and how much hp do they add? Also what are the PI heads? Crumbie: I know gears would be his best mod and only help him but he doesn't want to...

------------------
92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

04-04-2001, 02:26 PM

I just wanted to let you know b/c I was also hessitant about getting gears installed, but now after the fact I wish it would have been my first mod. I can't find any reason not to have them installed.

I've heard that a set of complete factory 99+ heads cost around $700. Someone correct me if I'm wrong b/c I'm also in the market for them.

------------------
------------
1997 GT Flowmasters,K&N,3.27 gears
RedSOHC

91LX2Bfast · 04-04-2001, 05:54 PM

I know as of last month w/ my TCCoA club discount, I can get the heads for $570. It would be worth paying the $40 joining fee to save an extra $90-100 if the price is still the same.
PI just stands for "power improved." Thats what Ford called the 99+ 4.6 heads. They will add at least 35+HP, more if you put some P&P work into them of course.

------------------
2001 SVT Lightning (red): Many mods to come- Let the Vette killer begin to take shape

1997 Thunderbird 4.6L: Dynomax exhaust, Mustang intake tube, SVT Lightning 80mm MAF, Accufab MAF adapter, 7" Auto-physics powerstack filter, ram air, B&M 24,000GVW trans cooler, Custom chip, FMS 9mm wires, many more to come...

No Longer own: 91 LX 5.0L 5 spd

SMOKE · 04-05-2001, 08:35 AM

Get him off that No gears thing. Should be his first mod.
> the 99 headswap complete with cams will net you 35 rwhp at a minimum naturally aspirated.
Some claim higher gains
> pullies if he isn't going FI
> no mention of the K&N

IMHO, Best combo if money wasn't an object:
FRPP intake
FRPP heads p&p
SHM prepped shortblock
Stage II cams
Vortech or another centri S/C

That would put a lot of power down. Next mod would be rear tires on a quarterly basis.

------------------
K!
Personalized Black 98 SVO Blown Stage II ROUSH
without the side exhaust but some other cool stuff
Dyno 303rwhp 338rwtrq
Still working out the kinks!!!

King Snake · 04-06-2001, 08:49 AM

Hey Smoke, why do you recommend not using underdrives with a blower?

46stang · 04-06-2001, 09:15 AM

gears are a must there shouldn't even be a disscussion on that one. they multilply torque. just what the 4.6 needs. most are getting around 45rwhp from ported 99 heads. usually in the 260-270rwhp range. they feel awesome. GET THEM!( alot of guys are running low 13's to high 12's after the head swap, on slicks) oh yea my gas mileage didn't even change, still get 22mpg. good luck.
p.s. beat him over the head with a stick until you convince him about the gears

------------------
96 stang,ported 99 heads, 99 intake, 99 cams,Steeda power pullies, 373's, 70mm t/b, gutted maf, bassani x-pipe w/cats, ultraflow catback,iat mod, home depot ram air, k@n. fms spings, tri-ax shifter.

[This message has been edited by 46stang (edited 04-06-2001).]

SMOKE · 04-07-2001, 05:46 PM

King Snake -Warner Robbins AFB?
U/D pullies -as I was told- don't function well with S/Cs.

You need your normal pullies when installing any S/C.
Mine is a Roots Blower. Needed stock pullies.
Know several Vortech types that had U/D pullies and had to get stock pullies for the S/C.

GTRagtop · 04-08-2001, 06:33 AM

I have a 2000 GT Conv. ...and I do alot of 70 mph driving.."work" ....are the 373's going to be a problem?...GTRagtop

GTRagtop · 04-08-2001, 06:48 AM

I have a 2000 GT Conv. ...and I do alot of 70 mph driving.."work" ....are the 373's going to be a problem?...GTRagtop

FivepointOH · 04-08-2001, 05:22 PM

So 700 for the 99+ heads... are there any other mods that are required to make these things work or can he just slap them on like that... also how much would a shop charge for installation? $400?

------------------
92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

King Snake · 04-09-2001, 11:55 AM

Smoke: Yes, Robins Air Force Base. I do not work there but my wife does. You must be military

2cammer97 · 04-09-2001, 04:06 PM

it doesn't seem to smart of your friend to not want gears. that is like me saying i don't want to go fast or somthing. gears are one of the best mods for a mustang. the headswap breaks down like this: parts 1200, port and polish of heads 600, labor to install 800. the port and polish is optional. and yes, it is worth the money- believe me.

------------------
97 Mustang GT Rio Red
99 port/polish heads,99 cams,99 intake manifold,Steeda sport springs,Steeda caster/camber plates,Offset steering rack bushings,Steeda subframe connectors,Tokico struts/shocks,Steeda Triax shifter,FRPP clutch,FRPP 3.73 Gears,Pro-M 87 mm mass air,K&N filter,FRPP underdrive pullies,FRPP 9mm plug wires,Steeda timing adjuster,MSD DIS-4 ignition,Aeromotive adjustable fuel pressure regulator,Walbro 190 lph fuel pump,FRPP shorty headers,Bassani offroad x-pipe,Mac cat-back exha

04-03-2001, 07:03 PM	#1
FivepointOH Registered Member Join Date: Jan 1999 Location: Sugar Land, Tx USA Posts: 478	Mods for a 98 GT My friend has a 98 gt, it is a 5spd with full exhaust(headers, offroad h, flows), suspension and shifter. He wants to know of some more mods he can do for power(doesnt want gears, I know i keep telling him they feel like 50hp but he doesn't want them), he said something about a cobra intake but that it cost $900 for the intake?!? Do they make new heads or intake for his car and how much are they? I know nothing about modular engines(as u can see i have a 5.0) ------------------ 92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

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04-03-2001, 07:16 PM	#2
rbatson Guest Posts: n/a	Has he considered 99GT heads?

04-04-2001, 06:43 AM	#3
crumbie Guest Posts: n/a	Why not gears?! I just got 3.73's put in my '97 and it made a world of a difference. I also haven't seen ANY drop in MPG. This should definitely be his next mod. I'm planning to go to the track (weather permitting) Thursday so I'll let you know what kind of difference in time they made. If he doesn't want gears, then I'd save some money up and purchase the 99+ heads. Other good bolt-ons are the Steeda timing adjuster, pullies, and a K&N. ------------------ ------------ 1997 GT Flowmasters,K&N,3.27 gears RedSOHC

04-04-2001, 08:55 AM	#4
91LX2Bfast Registered Member Join Date: Dec 1999 Location: Warrington, PA Posts: 694	The only intake for the 4.6 2V is the FRPP intake and its something like $1500 or something. He could score a set of new/complete PI heads for around $570. They should add a firm 35HP and really help abouve 4000 rpm. If he wants to get serious about the head swap, there is a nice installation article on www.tccoa.com that should cover most of what he needs. He could always go for pulleys and a MAF. Tell him keep away from a TB as that won't do anything. ------------------ 2001 SVT Lightning (red): Many mods to come- Let the Vette killer begin to take shape 1997 Thunderbird 4.6L: Dynomax exhaust, Mustang intake tube, SVT Lightning 80mm MAF, Accufab MAF adapter, 7" Auto-physics powerstack filter, ram air, B&M 24,000GVW trans cooler, Custom chip, FMS 9mm wires, many more to come... No Longer own: 91 LX 5.0L 5 spd

04-04-2001, 01:31 PM	#5
FivepointOH Registered Member Join Date: Jan 1999 Location: Sugar Land, Tx USA Posts: 478	How much do the 99+ heads cost and how much hp do they add? Also what are the PI heads? Crumbie: I know gears would be his best mod and only help him but he doesn't want to... ------------------ 92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

04-04-2001, 02:26 PM	#6
crumbie Guest Posts: n/a	I just wanted to let you know b/c I was also hessitant about getting gears installed, but now after the fact I wish it would have been my first mod. I can't find any reason not to have them installed. I've heard that a set of complete factory 99+ heads cost around $700. Someone correct me if I'm wrong b/c I'm also in the market for them. ------------------ ------------ 1997 GT Flowmasters,K&N,3.27 gears RedSOHC

04-04-2001, 05:54 PM	#7
91LX2Bfast Registered Member Join Date: Dec 1999 Location: Warrington, PA Posts: 694	I know as of last month w/ my TCCoA club discount, I can get the heads for $570. It would be worth paying the $40 joining fee to save an extra $90-100 if the price is still the same. PI just stands for "power improved." Thats what Ford called the 99+ 4.6 heads. They will add at least 35+HP, more if you put some P&P work into them of course. ------------------ 2001 SVT Lightning (red): Many mods to come- Let the Vette killer begin to take shape 1997 Thunderbird 4.6L: Dynomax exhaust, Mustang intake tube, SVT Lightning 80mm MAF, Accufab MAF adapter, 7" Auto-physics powerstack filter, ram air, B&M 24,000GVW trans cooler, Custom chip, FMS 9mm wires, many more to come... No Longer own: 91 LX 5.0L 5 spd

04-05-2001, 08:35 AM	#8
SMOKE Old School ROUSH Join Date: Nov 1999 Location: Stockbridge, GA Posts: 531	Get him off that No gears thing. Should be his first mod. > the 99 headswap complete with cams will net you 35 rwhp at a minimum naturally aspirated. Some claim higher gains > pullies if he isn't going FI > no mention of the K&N IMHO, Best combo if money wasn't an object: FRPP intake FRPP heads p&p SHM prepped shortblock Stage II cams Vortech or another centri S/C That would put a lot of power down. Next mod would be rear tires on a quarterly basis. ------------------ K! Personalized Black 98 SVO Blown Stage II ROUSH without the side exhaust but some other cool stuff Dyno 303rwhp 338rwtrq Still working out the kinks!!!

04-06-2001, 08:49 AM	#9
King Snake Registered Member Join Date: Jan 2000 Location: Warner Robins, GA, USA Posts: 210	Hey Smoke, why do you recommend not using underdrives with a blower?

04-06-2001, 09:15 AM	#10
46stang Registered Member Join Date: May 1999 Location: moorpark ca Posts: 340	gears are a must there shouldn't even be a disscussion on that one. they multilply torque. just what the 4.6 needs. most are getting around 45rwhp from ported 99 heads. usually in the 260-270rwhp range. they feel awesome. GET THEM!( alot of guys are running low 13's to high 12's after the head swap, on slicks) oh yea my gas mileage didn't even change, still get 22mpg. good luck. p.s. beat him over the head with a stick until you convince him about the gears ------------------ 96 stang,ported 99 heads, 99 intake, 99 cams,Steeda power pullies, 373's, 70mm t/b, gutted maf, bassani x-pipe w/cats, ultraflow catback,iat mod, home depot ram air, k@n. fms spings, tri-ax shifter. [This message has been edited by 46stang (edited 04-06-2001).]

04-07-2001, 05:46 PM	#11
SMOKE Old School ROUSH Join Date: Nov 1999 Location: Stockbridge, GA Posts: 531	King Snake -Warner Robbins AFB? U/D pullies -as I was told- don't function well with S/Cs. You need your normal pullies when installing any S/C. Mine is a Roots Blower. Needed stock pullies. Know several Vortech types that had U/D pullies and had to get stock pullies for the S/C.

04-08-2001, 06:33 AM	#12
GTRagtop Registered Member Join Date: Mar 2001 Location: Newburgh, NY USa Posts: 14	I have a 2000 GT Conv. ...and I do alot of 70 mph driving.."work" ....are the 373's going to be a problem?...GTRagtop

04-08-2001, 06:48 AM	#13
GTRagtop Registered Member Join Date: Mar 2001 Location: Newburgh, NY USa Posts: 14	I have a 2000 GT Conv. ...and I do alot of 70 mph driving.."work" ....are the 373's going to be a problem?...GTRagtop

04-08-2001, 05:22 PM	#14
FivepointOH Registered Member Join Date: Jan 1999 Location: Sugar Land, Tx USA Posts: 478	So 700 for the 99+ heads... are there any other mods that are required to make these things work or can he just slap them on like that... also how much would a shop charge for installation? $400? ------------------ 92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

04-09-2001, 11:55 AM	#15
King Snake Registered Member Join Date: Jan 2000 Location: Warner Robins, GA, USA Posts: 210	Smoke: Yes, Robins Air Force Base. I do not work there but my wife does. You must be military

04-09-2001, 04:06 PM	#16
2cammer97 Registered Member Join Date: Aug 2000 Location: carrollton, tx, USA Posts: 15	it doesn't seem to smart of your friend to not want gears. that is like me saying i don't want to go fast or somthing. gears are one of the best mods for a mustang. the headswap breaks down like this: parts 1200, port and polish of heads 600, labor to install 800. the port and polish is optional. and yes, it is worth the money- believe me. ------------------ 97 Mustang GT Rio Red 99 port/polish heads,99 cams,99 intake manifold,Steeda sport springs,Steeda caster/camber plates,Offset steering rack bushings,Steeda subframe connectors,Tokico struts/shocks,Steeda Triax shifter,FRPP clutch,FRPP 3.73 Gears,Pro-M 87 mm mass air,K&N filter,FRPP underdrive pullies,FRPP 9mm plug wires,Steeda timing adjuster,MSD DIS-4 ignition,Aeromotive adjustable fuel pressure regulator,Walbro 190 lph fuel pump,FRPP shorty headers,Bassani offroad x-pipe,Mac cat-back exha