Looking to head to the drag strip what should it run? - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 28 Old 07-17-2018, 06:41 PM Thread Starter
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Looking to head to the drag strip what should it run?

Hey fellas just picked up a 89 notch. Car has a semi built motor 306 with gt40x heads. What should this combo run. I’m thinking 12.50s or so. Here is a list of the mods.
306
Gt40x Heads
Performer rpm intake
650 Holley carb
F cam
9.0 compression
1.6 roller rockers
Mac shorty headers
Mac off road H pipe
Flowmaster exhaust
Tremec 3550 trans
3.73 gears
Stock suspension
275 60 15 drag radials
Ac delete.
Am I in the ballpark thinking it should go 12.50s. Thanks

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post #2 of 28 Old 07-17-2018, 07:26 PM
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Yes if you remove the , spare, carpet, jack, and you know how to drive. For most of us, maybe low 13's.


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post #3 of 28 Old 07-18-2018, 12:58 AM
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If you can bang bears/power shift I say easy. I dont like the 28 tire at your power level with a 3.73.

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post #4 of 28 Old 07-19-2018, 07:21 PM
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Depending on what part of the country your in it might run 12.50s with some good traction and shifting. If you live in the deep south you can forget it until January. The heat and humidity of the south in the summer will kill the horsepower.
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post #5 of 28 Old 07-19-2018, 10:26 PM
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12.9 to 13.2 will be a realistic number you have a stock suspension with min hp.
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post #6 of 28 Old 07-19-2018, 10:36 PM
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I'm with rob, that's a tall tire for for your gear, and the stock suspension may be overwhelmed, cutting a good 60' may be tough.

For everything that is worthwhile, there is a counterfeit.
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post #7 of 28 Old 07-20-2018, 08:56 AM
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pretty much the same combo but i had UPR upper and lower control arms i went [email protected] mph

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post #8 of 28 Old 07-20-2018, 09:45 AM
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Pull the junk out of the trunk, quarter tank of gas, air down the radials and unhook one side of the front swaybar. Shift like you stole it and you'll be high 12's if your lucky

Quote:
Originally Posted by blue93hatch View Post
I spec'd my whole build to fit a cold air intake I had
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post #9 of 28 Old 07-21-2018, 09:31 PM
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Quote:
Originally Posted by raceallday2 View Post
If you live in the deep south you can forget it until January. The heat and humidity of the south in the summer will kill the horsepower.
Absolutely correct! Driving home today and went to pass another car; dang car felt like a modern N/A 4 cylinder....104 air temp with 79 dewpoint...360'MSL. Gutless pig!


Those who race in higher altitudes will suffer the same issues. Denver? Forget it....Maybe a low 14/high 13 sec. My brother's old car would run 13.30 at Bandimere. Here it ran 12.50 and no changes were made. '69 Torino/429.
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post #10 of 28 Old 07-22-2018, 08:15 AM
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There is no way to say. Those parts in the hands of an experienced NMRA racer is very different than those parts in the hands of Joe Average.

Could be anywhere from 10s to 14s.

My guess is it has the POWER for somewhere between 11.5 - 12.5 ish but that won't happen on the first pass and might not happen without some suspension mods and driver practice. How do you guess when you have guys with good aftermarket parts that make 260 rwhp and then you have guys running worked over stock iron over 350 rwhp.

But you give those parts to an experienced racer and he will have the stuff running low 10s.

Best advice is to drop 20 bucks at the local strip and find out.

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post #11 of 28 Old 07-22-2018, 08:39 AM
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Wink

Let me share my secret proprietary (not really) methods for ricer math.

Figure out how fast you want to go. 12.5 ET

Divide 1335 by target ET. 1335/12.5 = 106.8 this is the approximate trap speed you need to get there.

Then figure out what your race weight with driver is. Either guess and be wrong or find a scale. 10 bucks at the truck stop should do the trick.

Lets say your car with driver is 3100 lbs.

Put it all into this calculator and let me stress THIS CALCULATOR not any other random one you find on the internet. http://www.angelfire.com/my/fan/WHPCalculator.htm

You find that you need 250.6 RWHP for that trap speed in that car.

This should get you in the ballpark of what your stuff is capable of being run in the roughly 95th or so percentile of what it is able.

This means this is a nearly best case number if you have your stuff SQUARED AWAY. That means the chassis and driver have to be able to use the power CLOSE to max potential.
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post #12 of 28 Old 07-23-2018, 03:36 PM
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The method Taco posted is very accurate. Here is my example: Know RWHP = 362 HP Best pass was an 11.13 @ 120.5 MPH.

1335/11.13 = 119.95 MPH

From the website:

Your stang weighs 3080 pounds and reaches 120.5 mph at the end of the 1/4 mile. Output is about 357.62 HP at the wheels.

The lockup from my AOD generates the MPH, but not the ET on the back end of the track.

89 LX hatch, Recycled 347, Canfield 192 heads, Mac 1 3/4 LT, Victor 5.0, CSE cam, AOD, Edge 3800 lockup converter, Lentech VB, 4.10s 255R60-15 MT ET Street Radials 3080 race weight -- 11.13 @ 120.55 MPH (7.05 @ 95.53 MPH 1/8)

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post #13 of 28 Old 07-23-2018, 07:26 PM
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I'm changing my answer from high 12's to mid 13s now

Quote:
Originally Posted by blue93hatch View Post
I spec'd my whole build to fit a cold air intake I had
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post #14 of 28 Old 07-24-2018, 09:43 PM
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Flyin' Ryan...here's my suggestion.

Forget this forum, and the answers. GO TO THE TRACK and have fun with it. If you feel like it, post up the results. If not, blow it off. If you're happy with it, stick with it, if not, repair and make another trip to the track to try it out.

Seat time. That is the only way you'll know what it'll run; and the only way you'll know what you need to do to make it faster. OH, and by the way....it's addictive if you haven't already figured it out

Reason I say that is because I am a member of several forums and sites, some of the are local. I see a lot of projects going on but I rarely see these guys at any of the local tracks. What's discouraging is watching the projects...especially the high end stuff...guys put hundreds of thousands into them, then lose interest, never hit the drag strip or anything, and eventually sell out. My brother is guilty. I have never put that kinda money into a vehicle and don't plan to, but I beat on the stuff that I do have and have been successful with it. Ain't nothing pretty, nothing fast, but gets the job done and I have fun messing with it-which is the root of the sickness. If it weren't fun, I won't do it...and yes there was a time when it became no fun, and I quit for a while. Nowadays, a few times a year and I'm good with that. Quit chasing money and points, jackets, hats, all that stuff, and it's FUN again.
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post #15 of 28 Old 07-25-2018, 07:47 AM
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Quote:
Originally Posted by toddturbo View Post
Flyin' Ryan...here's my suggestion.

Forget this forum, and the answers. GO TO THE TRACK and have fun with it. If you feel like it, post up the results. If not, blow it off. If you're happy with it, stick with it, if not, repair and make another trip to the track to try it out.

Seat time. That is the only way you'll know what it'll run; and the only way you'll know what you need to do to make it faster. OH, and by the way....it's addictive if you haven't already figured it out [IMG class=inlineimg]/forums/images/smilies/smile.gif[/IMG]

Reason I say that is because I am a member of several forums and sites, some of the are local. I see a lot of projects going on but I rarely see these guys at any of the local tracks. What's discouraging is watching the projects...especially the high end stuff...guys put hundreds of thousands into them, then lose interest, never hit the drag strip or anything, and eventually sell out. My brother is guilty. I have never put that kinda money into a vehicle and don't plan to, but I beat on the stuff that I do have and have been successful with it. Ain't nothing pretty, nothing fast, but gets the job done and I have fun messing with it-which is the root of the sickness. If it weren't fun, I won't do it...and yes there was a time when it became no fun, and I quit for a while. Nowadays, a few times a year and I'm good with that. Quit chasing money and points, jackets, hats, all that stuff, and it's FUN again.
Amen man. Well said. Problem is, it’s never fast enough!! So there starts the never ending $$ pit. Awesome hobby though!

Stock block 306, V1 T-trim, AFM B-451 cam, TFS Twisted Wedge, Holley Systemax, A1000, Snow Meth, TKO 600, Team Z, Strange, MM, Lakewood and Moser helps me go forward fast.
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post #16 of 28 Old 07-25-2018, 11:05 AM
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Quote:
Originally Posted by toddturbo View Post
Flyin' Ryan...here's my suggestion.

Forget this forum, and the answers. GO TO THE TRACK and have fun with it.
Come on man new driver in a light car with modifications.. gonna run 10s

Quote:
Originally Posted by blue93hatch View Post
I spec'd my whole build to fit a cold air intake I had
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post #17 of 28 Old 07-25-2018, 03:40 PM
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TODD TURBO

What Todd said. Just go to the track and have fun. Will the car go into the 12's Yes, but will you do it first night out Nope. I started out going 12 seconds with the same car I have now that goes high 8's and it is making within 50 horsepower its entire life.
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post #18 of 28 Old 07-26-2018, 11:51 AM
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i agree with Todd here... it takes a special type of nut job to stay building a car for year after year. 99% of people cant do it. its always best to do things here and there and keep having fun with the car. having a car down year after year is tough on anyone. mines been down doing on 2 years, i had planned on finishing it this year but life got in the way. lucky for me the work with the X car gets me my fix till mines done

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post #19 of 28 Old 07-26-2018, 12:06 PM
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Where's the timeslips?

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post #20 of 28 Old 07-26-2018, 02:21 PM
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Where's the timeslips?
depending where hes trying to race if its anywhere in the mid atlantic he would have been better of trying to race boats lately

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post #21 of 28 Old 07-26-2018, 02:30 PM
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Low 12's seems realistic. 50tussin would have it in the 11's.

1968 Torino GT 302 GT40Y TFS1 - 318HP/318TQ G-Force T5 Strange 9" 4.30's 12.29 ET 110 MPH 1.71 60'
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post #22 of 28 Old 07-26-2018, 02:55 PM
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I don't think we'll ever get an answer.

'88 5.0 GT hatch AOD 3.08
stock 302, Ed Curtis cam & 11R 190 heads,
Holley SM2, 320 hp 332 tq to the wheels
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post #23 of 28 Old 07-26-2018, 03:46 PM
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I don't think we'll ever get an answer.
Looks like he is new so hopefully he will be back with the results.

I see you are from Mass also. When you get your combo together hope to see it up the track.

1968 Torino GT 302 GT40Y TFS1 - 318HP/318TQ G-Force T5 Strange 9" 4.30's 12.29 ET 110 MPH 1.71 60'
1993 LX 5.0 5 speed reef blue black gut 5 lug swapped.
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post #24 of 28 Old 07-26-2018, 05:07 PM
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I just ordered heads and a cam from FTI (Ed Curtis). Soon as I get all of the parts together, I'll be at NED.

'88 5.0 GT hatch AOD 3.08
stock 302, Ed Curtis cam & 11R 190 heads,
Holley SM2, 320 hp 332 tq to the wheels
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post #25 of 28 Old 07-26-2018, 05:56 PM
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I just ordered heads and a cam from FTI (Ed Curtis). Soon as I get all of the parts together, I'll be at NED.
I’m planning to head there soon as well!! Do you guys go on Friday nights?

Stock block 306, V1 T-trim, AFM B-451 cam, TFS Twisted Wedge, Holley Systemax, A1000, Snow Meth, TKO 600, Team Z, Strange, MM, Lakewood and Moser helps me go forward fast.
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post #26 of 28 Old 07-26-2018, 07:44 PM
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Im planning to head there soon as well!! Do you guys go on Friday nights?
Not much in the summer but I was there a couple weeks ago practicing on a friday. Usually more in the fall, less traffic to get there and cooler temps. I have mostly been trying to compete in the 12.50 Outlaw 10.5 index.

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1993 LX 5.0 5 speed reef blue black gut 5 lug swapped.
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post #27 of 28 Old 07-26-2018, 10:56 PM
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I've been up a few times this season on Saturdays with my Super Duty. I was asked a couple of times when buying my tickets if I was racing. I should have said "YES, I'm going the race the truck" like Dale Jarrett when he had the UPS sponsor. The LS guys up there are no joke. There was a burnt Orange C6 with black stripes on the fenders that ran 11's on street tires one of the days I was there. I should have built a Coyote motor for my Fox. I'll be up for a street night or two once I get the new HCI setup on the car.

'88 5.0 GT hatch AOD 3.08
stock 302, Ed Curtis cam & 11R 190 heads,
Holley SM2, 320 hp 332 tq to the wheels
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post #28 of 28 Old 07-27-2018, 09:50 AM
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I’ll try me some LS guys when I go up! Ford Power all the way! My new build should be pretty quick, if I can handle it. (Maybe not the best driver haha). It’s not the Orange car in my avatar pic. Next few weeks I’d like to try to get up there. I’ll send you boys a PM when I head up. Maybe catch you up there.

Stock block 306, V1 T-trim, AFM B-451 cam, TFS Twisted Wedge, Holley Systemax, A1000, Snow Meth, TKO 600, Team Z, Strange, MM, Lakewood and Moser helps me go forward fast.
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