Quick question....

bigwhitecobra · 02-23-2001, 06:48 PM

I took my car to the local track 2 weeks ago and ran it once down the strip. The track is a 1/8 mile, so I'm not real sure how it figures to a 1/4 mile track. Here are the numbers.

rt-1.025(wasn't paying attention)
60'-2.436
660'6.474
ET-9.681
MPH-79.57

given the MPH, it seems that I should be running alot faster. I had some wheel spin off the line. Tire pressure was at 20 psi, temp was 55*f, but I don't know the humidity or elevation. Does this seem right to you guys?

pro88 · 02-23-2001, 11:20 PM

Well you reaction time was a little slow(make sure the ringer is "on" on your alarm clock on the dash next time). Your 60' times should be alot quicker(you did mention wheel spin though, that will definitely show that one down). Your 1/8 E.T. should put you in the mid-high 15 range. Your mph is pretty good. When you get your launch, 60's better you'll find with your mph that you'll be in the high 8's in the 1/8. With my driver, my 1/8 mile times are:
60' - 2.04
330' - 5.74
660' - 8.84
mph - 79.24
Get you car to hook up and you'll see big drops in your E.T.'s.

Ron1 · 02-24-2001, 02:10 AM

a 9.68 1/8th=15.05 1/4. Have conversion chart on my home page in the drag link section.
www.rfedd.bigstep.com

Ron

90dpscoupe · 02-26-2001, 02:59 AM

OMG, pro88 my 1/8 times 660, 60' ect.. are very identical to yours, (almost exact) what are your mods? i have no sway bar though, and in a lighter coupe.

------------------
90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 97.80
Best 60': 2.0047

next mods: subframes, mac h-pipe

bigwhitecobra · 02-26-2001, 03:31 PM

Here's the freaky part, my best run ever, I ran a 13.4@101, with mild wheel spin. Is my car making up that much ground in the last 1/8 mile? Whatever it is, thanks for the moral support. BTW, my average RT is about .700, I just had a very off day. Oh, and I didn't warm the tires, and I left at 1500 rpm. I guess that accounts for some of it, but man was that MPH high or what?

------------------
1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, 11.1@124
1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

AJSTANG · 02-26-2001, 08:53 PM

You can also use the mustang math on this site for 1/4 ET conversion. Just remember it assumes a lot better traction than what you got.

1) Reaction time does not affect 1/4 ET since ET clock does not start until you leave.

2) 660 ft is an 1/8 mile so the 6.47 sec must be your 330 ft ET. --9.681 sec is the elapsed time at 660 ft.

Plugging your numbers in the analyzer gives 15.1 @ 100.26 mph. Obviously you'd have a lot quicket ET with a better 60 ft time.

I am sure the 60 ft time was less than 2 sec on your 13 sec run.

------------------
'93 GT Conv.
13.35 @ 104.8 mph

bigwhitecobra · 02-26-2001, 11:37 PM

Yeah, it was 1.9-something. I misplaced my time slip, and I know I'll get alot of flak for it, so I am going off of memory. My 13.4 run was last May at Rockingham. Usually, doesn't a 79+MPH trap speed on the 1/8 go with a 8.8-8.99 ET?

02-27-2001, 11:02 PM

My N/A 97 Cobra runs 7.8 @ 88 MPH in the 1/8th mile.

Even when stock, you should be around 82-83 MPH in the 1/8th.

And yes, you will make up alot after the 1/8th mile with a DOHC. Its all top-end in these Cobra's. But, if you are geared accordingly (i.e., 4.30 or 4.56 gears) and have decent traction, you will run what I run with only minor bolt-ons.

Later, Jason

------------------
N/A 1997 Cobra

12.34
111.58 MPH
1.64 60 ft. on Drag Radials

Going for N/A 11's on the completely stock motor

bigwhitecobra · 02-28-2001, 09:09 PM

No offence, but my car is a 5.0. I guess you missed that, no biggie. T%hanks for the moral support though!

------------------
The Black Mamba 11.2@124
94 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

Killercanary · 03-01-2001, 09:35 PM

I was just looking at one of my old timeslips and here is what I ran, its kind close to yours.
60'- 1.934
330- 5.694
1/8- 8.853
mph- 78.12
1000- 11.578
1/4- 13.874
mph- 98.26

This isn't my best run, but its the first timeslip I found that was close to yours, hope it helps.

------------------
95 GT convt' 5 speed, 3.73's,FMS HD clutch, Pro 5.0 shifter, ASP alum. underdrive pulleys, Bassani offroad X pipe, 2 chmbr flowmasters, K&N w/o silencer, edelbrock performer intake, FRPP 65mm T-body, FRPP shorty headers, FRPP aluminum driveshaft.Hooker 4pt chrome car bar, Xenon/Wings West ground effects, custom interior
Best ET: 13.83
Best MPH: 98.55mph with Best 60': 1.91 on Nitto DR's
Homepage: <A HREF="http://www.angelfire.com/pa2/killercanary" TARGET=_blank>http://www.angelfire

bigwhitecobra · 03-01-2001, 11:13 PM

Yeah, thanks! I thought I should be somewhere in that range. Anyway, I guess I should just spend a day at the track and get more than one lowzy run in. Thanks again guys!

02-23-2001, 06:48 PM	#1
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	Quick question.... I took my car to the local track 2 weeks ago and ran it once down the strip. The track is a 1/8 mile, so I'm not real sure how it figures to a 1/4 mile track. Here are the numbers. rt-1.025(wasn't paying attention) 60'-2.436 660'6.474 ET-9.681 MPH-79.57 given the MPH, it seems that I should be running alot faster. I had some wheel spin off the line. Tire pressure was at 20 psi, temp was 55*f, but I don't know the humidity or elevation. Does this seem right to you guys?

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02-23-2001, 11:20 PM	#2
pro88 Registered Member Join Date: Dec 2000 Location: roseburg, oregon Posts: 87	Well you reaction time was a little slow(make sure the ringer is "on" on your alarm clock on the dash next time). Your 60' times should be alot quicker(you did mention wheel spin though, that will definitely show that one down). Your 1/8 E.T. should put you in the mid-high 15 range. Your mph is pretty good. When you get your launch, 60's better you'll find with your mph that you'll be in the high 8's in the 1/8. With my driver, my 1/8 mile times are: 60' - 2.04 330' - 5.74 660' - 8.84 mph - 79.24 Get you car to hook up and you'll see big drops in your E.T.'s.

02-24-2001, 02:10 AM	#3
Ron1 Registered Member Join Date: Sep 1999 Location: Vancouver, WA USA Posts: 439	a 9.68 1/8th=15.05 1/4. Have conversion chart on my home page in the drag link section. www.rfedd.bigstep.com Ron

02-26-2001, 02:59 AM	#4
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	OMG, pro88 my 1/8 times 660, 60' ect.. are very identical to yours, (almost exact) what are your mods? i have no sway bar though, and in a lighter coupe. ------------------ 90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 97.80 Best 60': 2.0047 next mods: subframes, mac h-pipe

02-26-2001, 03:31 PM	#5
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	Here's the freaky part, my best run ever, I ran a 13.4@101, with mild wheel spin. Is my car making up that much ground in the last 1/8 mile? Whatever it is, thanks for the moral support. BTW, my average RT is about .700, I just had a very off day. Oh, and I didn't warm the tires, and I left at 1500 rpm. I guess that accounts for some of it, but man was that MPH high or what? ------------------ 1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, 11.1@124 1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

02-26-2001, 08:53 PM	#6
AJSTANG Registered Member Join Date: Nov 2000 Location: Maryland Posts: 123	You can also use the mustang math on this site for 1/4 ET conversion. Just remember it assumes a lot better traction than what you got. 1) Reaction time does not affect 1/4 ET since ET clock does not start until you leave. 2) 660 ft is an 1/8 mile so the 6.47 sec must be your 330 ft ET. --9.681 sec is the elapsed time at 660 ft. Plugging your numbers in the analyzer gives 15.1 @ 100.26 mph. Obviously you'd have a lot quicket ET with a better 60 ft time. I am sure the 60 ft time was less than 2 sec on your 13 sec run. ------------------ '93 GT Conv. 13.35 @ 104.8 mph

02-26-2001, 11:37 PM	#7
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	Yeah, it was 1.9-something. I misplaced my time slip, and I know I'll get alot of flak for it, so I am going off of memory. My 13.4 run was last May at Rockingham. Usually, doesn't a 79+MPH trap speed on the 1/8 go with a 8.8-8.99 ET?

02-27-2001, 11:02 PM	#8
jmeiers Guest Posts: n/a	My N/A 97 Cobra runs 7.8 @ 88 MPH in the 1/8th mile. Even when stock, you should be around 82-83 MPH in the 1/8th. And yes, you will make up alot after the 1/8th mile with a DOHC. Its all top-end in these Cobra's. But, if you are geared accordingly (i.e., 4.30 or 4.56 gears) and have decent traction, you will run what I run with only minor bolt-ons. Later, Jason ------------------ N/A 1997 Cobra 12.34 111.58 MPH 1.64 60 ft. on Drag Radials Going for N/A 11's on the completely stock motor

02-28-2001, 09:09 PM	#9
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	No offence, but my car is a 5.0. I guess you missed that, no biggie. T%hanks for the moral support though! ------------------ The Black Mamba 11.2@124 94 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

03-01-2001, 09:35 PM	#10
Killercanary Registered Member Join Date: Nov 1999 Location: Altoona, PA Posts: 336	I was just looking at one of my old timeslips and here is what I ran, its kind close to yours. 60'- 1.934 330- 5.694 1/8- 8.853 mph- 78.12 1000- 11.578 1/4- 13.874 mph- 98.26 This isn't my best run, but its the first timeslip I found that was close to yours, hope it helps. ------------------ 95 GT convt' 5 speed, 3.73's,FMS HD clutch, Pro 5.0 shifter, ASP alum. underdrive pulleys, Bassani offroad X pipe, 2 chmbr flowmasters, K&N w/o silencer, edelbrock performer intake, FRPP 65mm T-body, FRPP shorty headers, FRPP aluminum driveshaft.Hooker 4pt chrome car bar, Xenon/Wings West ground effects, custom interior Best ET: 13.83 Best MPH: 98.55mph with Best 60': 1.91 on Nitto DR's Homepage: <A HREF="http://www.angelfire.com/pa2/killercanary" TARGET=_blank>http://www.angelfire

03-01-2001, 11:13 PM	#11
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	Yeah, thanks! I thought I should be somewhere in that range. Anyway, I guess I should just spend a day at the track and get more than one lowzy run in. Thanks again guys!