How do I run 13's?

98GtPower · 02-09-2003, 03:43 AM

I have a 98 GT Convertible, What does it take for me to run 13's???

mustanggt_50 · 02-09-2003, 10:51 PM

you car is quite heavy, you didnt mention whether is a 5spd or auto???
anyways, go with some gears, underdrive pullies, slicks, timing adjuster, try to do some weight reductions. headers, and full exhaust. im sure others can extend on this,

have you been to the track yet, and if so what did you run before??

98GtPower · 02-10-2003, 01:08 AM

I have manual, and i haven't been to the track...what about a procharger and 2000 head conversion(heads,cams, intake) porting and polishing, gears, racing clutch and street legal slicks?

The Deuce · 02-10-2003, 01:28 AM

If you do a 99+ head swap, and a blower, you'll need to do some serious work.

Step 1. Port the heads, to increase the size of the combustion chamber.
Step 2. Attach blower and blow up bottom end.
Step 3. Rebuild wiht Forged internals, at 8.5:1.
Step 4. Turn up the boost and hold on.

You're not going to see 13 without a power adder in that car. At least not if you plan on driving it daily. It's too darn heavy. Work on seeing 14's first.

97SOHCAMMER · 02-10-2003, 09:30 AM

No way! I totally disagree. With a PI head swap, and gears, you should run 13's easy. If you can drive that is. You dont need a power adder but it wouldn't hurt.

The Deuce · 02-10-2003, 02:46 PM

You are not going to pick up 1.5 seconds doing a simple head and gear change. Fox lake stage III heads and 4.30 gears might get that much off alone.

tireburner163 · 02-10-2003, 03:42 PM

the PI head swap bumps your compression to 11:1. If you wanna add a blower on top of that, you've got bigger balls than me.

My suggestion......get blown.

98GtPower · 02-10-2003, 05:17 PM

I have a lot of questions here:
" Attach blower and blow up bottom end."????
"Rebuild wiht Forged internals, at 8.5:1."???

Also, does the 98 Cobra engine have really high compression and needs to be lowered to safely add a power adder (supercharger) on a daily driver???

Also in my earlier post I said "Procharger" which means an intercooled supercharger.

tireburner163 · 02-10-2003, 08:24 PM

Quote:

Originally posted by 98GtPower
I have a lot of questions here:
" Attach blower and blow up bottom end."????
"Rebuild wiht Forged internals, at 8.5:1."???

Also, does the 98 Cobra engine have really high compression and needs to be lowered to safely add a power adder (supercharger) on a daily driver???

Also in my earlier post I said "Procharger" which means an intercooled supercharger.

Ok when you swap 99 and up heads onto a 96-98 4.6 liter it bumps the compression up to 11:1. This is because the 96-98 motors use a flat-top piston, while the 99 and up motors use a dished one.

So if you throw a blower onto a 96-98 motor that's had the PI head swap done to it, it's probably gonna blow the motor.

So if you wanna run a blower on a 96-98 motor with a PI head way you need to rebuild the bottom end with forged internals that lower the compression to a blower friendly 8.5

No the 98 Cobra doesn't not have really high compression

Procharger's kick ***......what are you doing reading this, you should be out buying one!!!

98GtPower · 02-10-2003, 11:40 PM

Then should I just get a Cobra engine I have been eyeballing (28k miles, $3600 after install) and get a ProCharger? Or would I have to get forged parts for the Cobra engine too?

Hammer · 02-11-2003, 12:32 AM

There's always something called motorsport heads and intake... then feel free to stick a blower on...

tireburner163 · 02-11-2003, 02:25 AM

you don't have to have forged internals to run a blower on a GT. You just can't have a blower AND a PI head swap.

Cobra motor for 3600 installed doesn't sound bad.

98GtPower · 02-11-2003, 02:44 AM

So it would be safe to get the Cobra engine drop it in and put a Procharger putting out 8-10 psi. Or am i gonna be ending up with a broken car after a couple of races.

tireburner163 · 02-13-2003, 12:03 AM

8-10psi should be no problem.

02-09-2003, 03:43 AM	#1
98GtPower Registered Member Join Date: Aug 2002 Location: OXNARD!!! California Posts: 36	How do I run 13's? I have a 98 GT Convertible, What does it take for me to run 13's??? __________________ 98 Mustang GT- American Thunder Flowmaster exhaust, upper and lower control arms, turn downs, Saleen style body kit, Cobra R Hood, 17" Cobra Imitation Chrome Polished Rims.

02-09-2003, 10:51 PM	#2
mustanggt_50 Registered Member Join Date: Dec 2002 Location: Ontario Canada Posts: 91	you car is quite heavy, you didnt mention whether is a 5spd or auto??? anyways, go with some gears, underdrive pullies, slicks, timing adjuster, try to do some weight reductions. headers, and full exhaust. im sure others can extend on this, have you been to the track yet, and if so what did you run before?? __________________ 87 GT T-roof (needs paint) lol, rebuilt motor and trans, AOD - stage 2 shift kit, 3.73 gears - auburn posi, Dynomax Super Turbo Cat Back, FRPP 155lph fuel pump, K&N filter - air silencer removed, subframe connectors, strut tower brace. 88 GT T-roof 1989 LX Coupe 5.0 - 5spd Rice Haters Club member#105

02-10-2003, 01:08 AM	#3
98GtPower Registered Member Join Date: Aug 2002 Location: OXNARD!!! California Posts: 36	I have manual, and i haven't been to the track...what about a procharger and 2000 head conversion(heads,cams, intake) porting and polishing, gears, racing clutch and street legal slicks? __________________ 98 Mustang GT- American Thunder Flowmaster exhaust, upper and lower control arms, turn downs, Saleen style body kit, Cobra R Hood, 17" Cobra Imitation Chrome Polished Rims.

02-10-2003, 01:28 AM	#4
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	If you do a 99+ head swap, and a blower, you'll need to do some serious work. Step 1. Port the heads, to increase the size of the combustion chamber. Step 2. Attach blower and blow up bottom end. Step 3. Rebuild wiht Forged internals, at 8.5:1. Step 4. Turn up the boost and hold on. You're not going to see 13 without a power adder in that car. At least not if you plan on driving it daily. It's too darn heavy. Work on seeing 14's first. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

02-10-2003, 09:30 AM	#5
97SOHCAMMER Registered Member Join Date: Dec 2002 Location: Arlington Heights,IL Posts: 16	No way! I totally disagree. With a PI head swap, and gears, you should run 13's easy. If you can drive that is. You dont need a power adder but it wouldn't hurt. __________________ '97 Laser Red GT Coupe (Parked For the Winter) Stock 2V 4R70W Automatic (Rebuilt) Ripped off a BLISTERING 15.37@90MPH With a 2.11 60ft Removed Mufflers No Silencer K&N Air Filter Saleen S-351 Body Kit (Awaiting Paint) Coming Soon...... -4.10's -Mac Cat Back & Pro Chamber -Steeda Pullies -C&L Mass-Air -------------------------------------------- '89 Hyundai Excel GL (Winter Pimpmobile) -68 pavement melting HP -5-speed -Skull Shift Knob -One bad attitude

02-10-2003, 02:46 PM	#6
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	You are not going to pick up 1.5 seconds doing a simple head and gear change. Fox lake stage III heads and 4.30 gears might get that much off alone. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

02-10-2003, 03:42 PM	#7
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	the PI head swap bumps your compression to 11:1. If you wanna add a blower on top of that, you've got bigger balls than me. My suggestion......get blown. __________________ 1987 Buick T-type 1998 HD Electra Elide

02-10-2003, 05:17 PM	#8
98GtPower Registered Member Join Date: Aug 2002 Location: OXNARD!!! California Posts: 36	I have a lot of questions here: " Attach blower and blow up bottom end."???? "Rebuild wiht Forged internals, at 8.5:1."??? Also, does the 98 Cobra engine have really high compression and needs to be lowered to safely add a power adder (supercharger) on a daily driver??? Also in my earlier post I said "Procharger" which means an intercooled supercharger. __________________ 98 Mustang GT- American Thunder Flowmaster exhaust, upper and lower control arms, turn downs, Saleen style body kit, Cobra R Hood, 17" Cobra Imitation Chrome Polished Rims.

02-10-2003, 11:40 PM	#10
98GtPower Registered Member Join Date: Aug 2002 Location: OXNARD!!! California Posts: 36	Then should I just get a Cobra engine I have been eyeballing (28k miles, $3600 after install) and get a ProCharger? Or would I have to get forged parts for the Cobra engine too? __________________ 98 Mustang GT- American Thunder Flowmaster exhaust, upper and lower control arms, turn downs, Saleen style body kit, Cobra R Hood, 17" Cobra Imitation Chrome Polished Rims.

02-11-2003, 12:32 AM	#11
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	There's always something called motorsport heads and intake... then feel free to stick a blower on... __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

02-11-2003, 02:25 AM	#12
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	you don't have to have forged internals to run a blower on a GT. You just can't have a blower AND a PI head swap. Cobra motor for 3600 installed doesn't sound bad. __________________ 1987 Buick T-type 1998 HD Electra Elide

02-11-2003, 02:44 AM	#13
98GtPower Registered Member Join Date: Aug 2002 Location: OXNARD!!! California Posts: 36	So it would be safe to get the Cobra engine drop it in and put a Procharger putting out 8-10 psi. Or am i gonna be ending up with a broken car after a couple of races. __________________ 98 Mustang GT- American Thunder Flowmaster exhaust, upper and lower control arms, turn downs, Saleen style body kit, Cobra R Hood, 17" Cobra Imitation Chrome Polished Rims.

02-13-2003, 12:03 AM	#14
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	8-10psi should be no problem. __________________ 1987 Buick T-type 1998 HD Electra Elide