1/4 mile times? - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 29 Old 03-24-2016, 05:34 AM Thread Starter
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1/4 mile times?

I know the significant differences in the road racing vs drag racing suspension setups and the two are not the same. BUT has anyone taken their car to the drag strip to see what it will do?

I recently bought a car that is nearly completely setup for the road courses and was thinking it would probably do pretty well at the strip and will be verifying this when I get home and check it out. Has anyone just put on the slicks or sticky tires and tried it? If so, what did it do?

Right now my current car has a California friendly exhaust (this is definitely being taken off), has Koni yellows all around with the pan hard, torque arm and subframes. Been kicking around the idea of upgrading the axles to some Moser 33 spline, an Eaton Detroit True Track for 33 spline axles, 9 inch ends, and some AFCO adjustable struts and shocks but not sure these would work on the road courses as well as the strip so not sure on this one as the Koni yellows may stay for the primary purpose of the car.....road courses.

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post #2 of 29 Old 03-24-2016, 06:28 AM
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MM&FF did a build a while back using a MM configuration with TA and adjustable Koni SAs as I recall and the car did pretty well on both road course and strip with a change in wheels/tires and shock settings. CO springs on the front were I believe in the 250 range which is soft for a road race car but about as stiff as any conventional spring that people use on road courses. pretty descent all purpose car as I recall.


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post #3 of 29 Old 03-24-2016, 08:58 AM Thread Starter
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Nice, I will try and find it. Not up to changing the springs. As much as I know that will help, I will probably just opt for the AFCO shock and strut setup if I find out it will work well for both.
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post #4 of 29 Old 03-24-2016, 09:44 AM Thread Starter
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post #5 of 29 Old 03-24-2016, 08:55 PM
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I took mine to a couple of different drag strips "back in the day", when it was essentially stock. It ran either 14.2 or 14.4, I can't remember, and something in the mid-90s. This would've been late '90s, so the numbers aren't exactly fresh. The last time I had it at a drag strip would've been in the '05 time frame, by which time it was pretty much in the condition it's in now (Griggs/MM suspension, 357W, etc). The 357 was horribly tuned at that point (not much better now, really... ) and I seem to recall running low 13s @ 104 or 106? Again, it's been a long time. I think I only got a single run in that night.

I've always figured it should be an easy 12-second car. It ran low 14s with a stock engine (just shorty headers), and the 357 has dyno'd ~390whp, so roughly 200hp more than it had "back in the day". Drag racing is pretty fun, I just haven't lived near a 1/4mi strip in a long time, and I don't find it fun enough that I'll drive a couple hours to get to a strip.

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post #6 of 29 Old 03-25-2016, 03:51 AM Thread Starter
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I hear you Patrick. I got into it heavy when I was stationed out at West Point and really haven't looked back. I found this car I currently own and thought I would try my hand at road racing and maybe throw some drag racing in there as well. I see you are Navy....very cool. Retired Army here.
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post #7 of 29 Old 03-25-2016, 09:18 PM
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When you were drag racing at West Point were you going up to Lebanon Valley Dragway, by chance? That's one of the strips I've been to, way back in 1996 when I was at nuclear prototype training up in Ballston Spa.

USNA '95 - Go Navy, Beat Army (again)!
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post #8 of 29 Old 03-26-2016, 02:32 AM Thread Starter
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Yeah, I was stationed there from 95 to 98 and used to run at Lebanon Valley, Island Dragway and Englishtown. Remember the 96 season? Army won the Commanders Cup....lol. I think it was the last time they won it. That was the last good season they have had.

I was up to Lebanon a lot back then. I was running a white 92 LX coupe then.
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post #9 of 29 Old 03-26-2016, 10:49 AM
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Shock & Spring Rates certainly a key difference

Might be reasonably quick (400rwhp and 2900lbs) but challenged to get out of the hole consistently or effectively. Online ET calculators based on power to weight ratios suggest that it'd be a 11 second car but I'd doubt that'd be reality.

As mentioned road race cars are more heavily sprung and struts/shocks set more firmly to maintain more even distribution of weight across all 4 tires. My RR fox runs coilovers with 475lbs front & 275-300lbs rear. That's a lot more that what you'd want for the drag racing weight transfer focused on planting the rear.

By contrast there threads in the drag race forum suggests a good coilover spring rates would for a 3000lb would be a 12''-150lbs max.

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post #10 of 29 Old 03-26-2016, 10:56 AM Thread Starter
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Yes, I recognize the shocks, struts and springs are the largest limiting factors. I would use some MT of some kind and just see what kind of 60's I could get. If it 60ft in the 1.60 range, I would be surprised.

I am in this car for the road racing. If that doesn't do it for me, I will use it in the 1/4. I have never road raced but think it is going to be pretty cool.

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post #11 of 29 Old 03-27-2016, 08:03 PM
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I did a 13.2 in the quarter mile with sumitomo HRT which suck and missed second gear with out the modify TKO. Your probably a better drag race then I Ed. It didn't help that I was surrounded by bow tie boys. One of the old timers there said if I could shift better and stick should do 11s.

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post #12 of 29 Old 03-28-2016, 03:20 AM Thread Starter
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11's will be my goal, Jeff. After I change the exhaust, I am pretty sure she will do it.
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post #13 of 29 Old 03-28-2016, 09:27 PM
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11's will be my goal, Jeff. After I change the exhaust, I am pretty sure she will do it.
If you mostly going to on the track. I was told some lower rear gears like 373 for road races Griggs told me.

Must be nice not to worry about smog laws. Its going to be loud. I tried it with no cats and got a ticket in two weeks. I remember the police officer asked what kind of muffler they were, as I replied loud.

Can't to see the pictures Ed

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post #14 of 29 Old 03-29-2016, 06:01 AM Thread Starter
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Yeah, I thought about those 3.55's in the rear after I posted the 11 second thoughts and now realize it will not do it with those. It would take 4.10's and probably 7,000 rpm shift points with a nice sticky tire to make 11's at the current weight of 3450lbs (my fat ass weighs 220lbs....lol). I am not going to do that. I want it for the road racing but will still take it to the track and see what it will do.

I will send you more pictures of the car when my painter gets them to me. He should have, or soon will be, spraying the blue on it soon. Once he does that and sends me pictures, I will send them to you.
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post #15 of 29 Old 03-29-2016, 08:46 AM
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Lot of 11 seconders here. Great I don't seem to have the power to go under 15
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post #16 of 29 Old 03-29-2016, 11:46 AM
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I'd be happy if mine runs [email protected] on ####ty street tires, 12.7 on some old radial slicks, and 12.5 on my bias hoosier slicks. I haven't been to a track in forever. Last time I went, I could only manage [email protected] but the car should be faster than that now (better rear suspension, possibly less weight, etc.). Also, I could have sworn that I had a 8th mile time slip from the 90s which extrapolated out to a [email protected] but I can't find it anywhere. It may have just been that I pulled someone during a roll on who normally ran 12.8s, I forget. Anyhow, my goal is low 12s, high 11s to get it more CP competitive. Still over 250 pounds heavy for the class.
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post #17 of 29 Old 03-29-2016, 07:39 PM
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Yeah, I thought about those 3.55's in the rear after I posted the 11 second thoughts and now realize it will not do it with those. It would take 4.10's and probably 7,000 rpm shift points with a nice sticky tire to make 11's at the current weight of 3450lbs (my fat ass weighs 220lbs....lol). I am not going to do that. I want it for the road racing but will still take it to the track and see what it will do.

I will send you more pictures of the car when my painter gets them to me. He should have, or soon will be, spraying the blue on it soon. Once he does that and sends me pictures, I will send them to you.
When I weight it with me in it is was 3240 lbs that's with a full tank of gas and me 250lbs

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post #18 of 29 Old 03-29-2016, 11:33 PM
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If you end up going to Byron, give me a shout out. I'm not too proud to look like the fool with the big hood that can't get out of the hole LOL!

BTW, you got some sticky meats I could borrow if we were to go?

Jay
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post #19 of 29 Old 03-30-2016, 01:24 AM Thread Starter
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When I weight it with me in it is was 3240 lbs that's with a full tank of gas and me 250lbs
Wow, cool. Now I am thinking I might make 11's or at least get close. I was thinking the 3240 lbs was without you. I was adding my weight but now I can actually subtract 30lbs and plan for 3210 lbs.
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post #20 of 29 Old 03-30-2016, 01:28 AM Thread Starter
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If you end up going to Byron, give me a shout out. I'm not too proud to look like the fool with the big hood that can't get out of the hole LOL!

BTW, you got some sticky meats I could borrow if we were to go?

Jay
I will let you know Jay. I have some 15 inch Pro Stars with slicks but not sure they will fit on the car with the Baer brakes on it. If they work, those are the ones I will be using and yes, you could use them as well.

I think the stock 28 spline axles are still in the back with the stock traction lock. Not sure how long those will last with some aggressive launches on sticky tires. I might have to get the Eaton Detroit Locker and 33 spline axles in before I do anything.
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post #21 of 29 Old 03-30-2016, 04:57 AM
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I drag race my car on occasion. The last time I went though was when it had the 302 that put down 450rwhp. My car then weighed 3660 with me in it and my best pass was an 11.69 at 119mph at Autoclub Drag way in Fontana. That was with MM Road and Track kit and SA Konis. I just set the fronts as soft as they go. I also run a MT ET Street slick and was launching at 6000 rpm. I can tell you though that going from full firm to full soft on the front struts was worth .40 seconds on my car.

I haven't been back since building the 347 or adding the TA but I'm taking it to Sacramento Dragway tonight but will be running my street driving tires which AR Sumitomo HTRZ 2. I think it will only run in the low 12 range but I'm hoping for a 122-123 trap speed.
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post #22 of 29 Old 03-30-2016, 10:30 AM Thread Starter
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That is moving out pretty good. Please post what it did when you get back. Thanks.
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post #23 of 29 Old 03-31-2016, 01:55 AM
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So I ran in the low 12's like I thought I would but I only ran 120mph. My best pass was a 12.33 at 120.31 with a pathetic 2.076 60ft. I could only give it half throttle in first gear but on that pass I hooked at full throttle in second.
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post #24 of 29 Old 03-31-2016, 03:42 AM Thread Starter
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Very nice trap speed there. You need to get some 'hook' and you are deep in the 11's. I hear you on that 60ft, that is hard to lower with street radials. I am hoping to be in the 1.60 range with mine when I take it. I hope my new clutch holds up. I only went with a SPEC stage 1 thinking it would be road racing only. Might have to up grade that if I keep going.
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post #25 of 29 Old 03-31-2016, 03:28 PM
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With my MT ET Street I pull 1.7 60ft but my car is heavy and I have 3.55 gears.
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post #26 of 29 Old 03-31-2016, 03:42 PM Thread Starter
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Yes, I have 3.55's as well. Probably going to have to spin it up pretty good to get some good 60ft's as well. I am betting my clutch will burn up. I might just see what she can do on drag radials and save the clutch....it is cheaper.
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post #27 of 29 Old 05-06-2016, 07:13 AM Thread Starter
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So I had to know what the car would do at the strip and broke down and took it yesterday. I drove it from Janesville, Wi to Union Grove, Wi for a test and tune and ran the car as I drive it. I didn't change the tire pressure, tires, take anything out of it to lighten it, mess with suspension, NOTHING! I ran it on the Kumhos I drive on and at the tire pressure I drive it on. The car is still smog legal by CA standards and NOTHING has been done to make it faster since I bought it. There is no aftermarket tuner, just the stock A9L.

I skipped heating the tires the first three passes and did heat them the last two passes. Though it helped, it was really meaningless in getting the full potential out of the car because it would not hook at all. I was 100 ft out before I could really get into it and by then, it was already over. At least I have a baseline now.

I will definitely be getting some Mickey Thompson ET Streets (already ordered them) dumping the exhaust for a custom setup and no cats and a tuner (probably Pro M). This ought to get me an easy 50 or more horsepower and help me get it to the ground.

I LOVE this car. On my way out to the track, I was on Highway 43 near Lake Geneva and an older guy in a Toyota Supra pulled up along side me and we went. I dropped it from 5th to 4th and absolutely walked him. He was very surprised. Getting the power to the ground is not a problem when you are already going 70 mph.....lol. It has it in it, it just can't get it to the ground in the 1/4 with a road racing setup. I knew this, just didn't realize how limiting the suspension really was at the drag strip.


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post #28 of 29 Old 05-06-2016, 09:54 AM
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Yeah, with that MPH, you should be deep into the 12s.
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post #29 of 29 Old 05-06-2016, 10:35 AM Thread Starter
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Yeah, it definitely needs a tune as well. A 347 with AFR 185's and Holley intake should put down more HP than that. It will get sorted out with the tuner, exhaust and tires.
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