238 RWHP runs a 12.4?

[J]

Is this possible?

http://www.gotstang.com/profile.php?LIL_INSTGATOR&info=1

[95mustang302]

It should be more like in the high 14's

[outlandishstang]

By Bill Putnam from Modular Depot

1.) Power – If you listen to some old school drag racers they may say you need at least 300+RWHP to hit 12’s in most cars. In some heavier cars that may be true but fact is suspensions are more refined these days and cars don’t weight 4,000 lbs. Most PI headed cars will hit the 245-255RWHP mark with basic mods (Pulleys, Timing Adjuster or chip, O/R H or X, K&N or other type of high flow filter and although not a power mod…gears 4.10s or 4.30s). For a bolt on GT this is enough power to get the car into the 12s after you follow the other steps. Keep in mind more power will make it easier to reach your goal or help offset more weight (see next section) but it can be done with less.

2.) Weight - You basic 5 speed coupe without driver weights 3250lbs. So with an average driver weighing about 180lbs that puts your race weight at 3430lbs. At that weight and a power to weight ratio of .075 you would need 258RWHP to hit 12’s. Power to weight is the power of your car (rear wheel) divided by race weight of the car. Using my car when I broke into the 12’s first time I was making 246RWHP and had a race weight of 3250lb, which worked out to a .075 power to weight ratio or .075RWHP per pound of the car. From what I’ve seen a car can get into the 12s with a .075 to .080 P/W ratio. So if your race weight is 3430lbs then 3430 * .075 = 257.25RWHP. As long as you keep this ratio in the .075 to .080 range you are fine plus keep in mind you can drop weight instead of adding power. An example of this is a car with a 3000lb race weight could break into the 12s with 225RWHP (close to stock power on a GT).

[J]

By Bill Putnam from Modular Depot

1.) Power – If you listen to some old school drag racers they may say you need at least 300+RWHP to hit 12’s in most cars. In some heavier cars that may be true but fact is suspensions are more refined these days and cars don’t weight 4,000 lbs. Most PI headed cars will hit the 245-255RWHP mark with basic mods (Pulleys, Timing Adjuster or chip, O/R H or X, K&N or other type of high flow filter and although not a power mod…gears 4.10s or 4.30s). For a bolt on GT this is enough power to get the car into the 12s after you follow the other steps. Keep in mind more power will make it easier to reach your goal or help offset more weight (see next section) but it can be done with less.

2.) Weight - You basic 5 speed coupe without driver weights 3250lbs. So with an average driver weighing about 180lbs that puts your race weight at 3430lbs. At that weight and a power to weight ratio of .075 you would need 258RWHP to hit 12’s. Power to weight is the power of your car (rear wheel) divided by race weight of the car. Using my car when I broke into the 12’s first time I was making 246RWHP and had a race weight of 3250lb, which worked out to a .075 power to weight ratio or .075RWHP per pound of the car. From what I’ve seen a car can get into the 12s with a .075 to .080 P/W ratio. So if your race weight is 3430lbs then 3430 * .075 = 257.25RWHP. As long as you keep this ratio in the .075 to .080 range you are fine plus keep in mind you can drop weight instead of adding power. An example of this is a car with a 3000lb race weight could break into the 12s with 225RWHP (close to stock power on a GT).
well said.

[LIL_INSTGATOR]

Let me help you clear something up that was my fastest time at the track. When my car was dynoed two years ago it was with out that blue baby bottle in the trunk. I must have miss read what they were asking but that is the reason for the confusion. Sorry motor times are 1\8 8.756 79.36mph 1\4 13.750 97.43 mph

[J]

Sorry motor times are 1\8 8.756 79.36mph 1\4 13.750 97.43 mph

:thumbup:

[fastmustangs1]

I don't think that is possible with just at amount of hp. 238hp probably will get you into the low 14's perhaps but not 12's. Your about 150 hp short.
Post up your timeslips from the dragstrip.

Matt :wow: :bs:

[232stang]

what are your torque numbers? what rear end ratio are you running? what tranny? any mods for increased traction?

[AutoBadges.com]

too little rwhp for that time

[AcidKoolz]

he had nitrous.

[BruntzySVT]

Nice!

[NoSlo5.0]

Show me a time slip with your dyno sheet attached and I'll still be skeptical..No, actually, I'll still say you're full of it.

I've run next to cars many times that make damn near that power to the wheels and they turn 14.4 to 14.6 all day long, every day. Never in my life have I seen a car capable of 12's that couldn't get to 98mph at the traps.

I don't feel too close minded, am I too far off the mark here? We're talking ~285 hp at the flywheel here.

[AutoBadges.com]

NoSlo5.0 I am with you.

[LIL_INSTGATOR]

No except very few and I mean very few read whats posted they just see what they want to see. This has aready been cleared up once but for a sec. time to those who couldn.t figure it out the first time THE DAMN CAR WAS NOT DYNOED ON SPRAY BUT WAS RAN ON SPRAY IN THE TIME SLIP BUT STILL I POSTED MOTORS TIMES ALL YOU HAVE TO DO IS SCROLL UP AND YOU CAN SEE BUT IT IS IN THE 13' S NOT 14'S ON MOTOR AND I HAVE THE SLIPS AND DYNO SHEET BUT IT IS'T HARD TO BELIVE A STOCK MUSTANG WON"T RUN 13.75 WITH BUILT TRANNY GEARS ET>DRAG AND BOLT ONS

:nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos: :nos:


And anybody is welcome to come get some cuz it might be slow but it is deadly consistent and runs the exact same numbers on the street as the track

[LIL_INSTGATOR]

AND YES I MIGHT JUST Be A JACKASS but i know what my car runs

[J]

AND YES I MIGHT JUST Be A JACKASS but i know what my car runs
We were just asking questions bro... I guess what would resolve this would just be a timeslip... no hard feelings.

[NoSlo5.0]

Let me help you clear something up that was my fastest time at the track. When my car was dynoed two years ago it was with out that blue baby bottle in the trunk. I must have miss read what they were asking but that is the reason for the confusion. Sorry motor times are 1\8 8.756 79.36mph 1\4 13.750 97.43 mph

Yep, didn't see that, sorry. With sticky tires they're in line. Don't wanna talk to you no more... :fu:

Now who's the jackass?

j/k ;)

[Tacbear]

It should be more like in the high 14's


I have 241rwhp and run 13.8x's!

[FastRedPonyCar]

I have 241rwhp and run 13.8x's!

I ran 13.77 @ 101 with around that I guess. I never had my car dynoed though.

It had the pi intake and an exhaust and 4.10's with the steeda T/A and pulleys.


Kumho's traction = teh not present.