8's in 1/8 Mile on 87 Octane?

GREY01 · 01-01-2002, 11:02 PM

Has anyone run in the 8's in 1/8 mile with 99-02 GT automatic while still using 87 octane gas (no additives)? If so, what mods were required?

Ares · 01-01-2002, 11:17 PM

Sorry to say I havent seen a GT/auto break out of 14's in 1/4 here let alone run 8's in 1/8.

If you have few mods I only recommend running 87octane. First off old racer tip is dont run it if you dont need it. Higher octane burns slower and can slow you down if car isnt designed or built to run higher octane for racing.

I only use 87 for mine.

Turbo99GT · 01-02-2002, 12:05 AM

I went 8.29 @ 86.xxx mph in the 1/8 with V2 S-trim @ 12 psi on my auto on 93 Octane. It would be stupid to risk an engine using 87. I have been much quicker/faster than 8s with the turbo with my stock auto which is now completely built.

GREY01 · 01-02-2002, 02:19 PM

I was hoping something like Bassini Off-road x-pipe, 4.10 gears, Transgo shift kit, drag radials, Mobil-1 oil, and K&N air filter might do it. I would think the gas octane requirement might not raise until timing was increased with something like the Steeda TA.

joegodfrey · 01-02-2002, 02:51 PM

You will be fine on 87 octane, unless you do advance the timing,add boost to your engine, or increase the compression ratio. I'm not sure about what you will run with those mods, there's only one way to know for sure. Good Luck

FoxBuilder · 01-07-2002, 12:54 PM

Well, first I don't believe any car is created equal, especially Mustang's.

I have a 2001 GT Mineral Gray (automatic), check out my web page (needs updated I know)

Bone stock my best E.T. is: 14.52@96mph

With the only mod being 2-chamber Flowmasters: 14.26@97.14mph

And with the addition of a MAC cold air kit: 13.992@100mph

joegodfrey · 01-07-2002, 01:31 PM

Those are some signifigant(sp?) improvements, have you put it on a dyno?

Freddie · 01-07-2002, 06:52 PM

My car is better with 87 octane. Higher octane seems to slow it down.

I ran 8.98@79 MPH with 87 octane. See the sig for a complete list of the many mods I have.

Ares · 01-07-2002, 07:02 PM

I take it one if the biggest things holding an auto back is the stock converter. What do they stall and/or flash at anyways?

GREY01 · 01-07-2002, 10:34 PM

Freddie and FoxBuilder,

You guys give me great hope for my automatic GT! Were you manually shifting your autos or just running them in Drive? How many miles do you have on your cars? Are you running original stock tires on your cars? What air pressure and what kind of launch techniques? I know, lots of questions, but you guys are really putting down some good times for very little mods and on 87 octane!

GREY01 · 01-07-2002, 10:42 PM

By the way, FoxBuilder, nice photo of your Mineral Grey 2001 GT. Had to go out and look in the garage to make sure mine was still there;>). It's cool how the paint takes on a grey shade when in soft light like your photo, but takes on a more dramatic goldish tint in the strong sunlight.

FoxBuilder · 01-08-2002, 12:45 PM

Freddie

What kind of reaction times are you getting? Also, how are you launching the car?

GREY01

The car is my daily driver, so I just put it in drive and punch the gas on yellow (still trying to find out witch one). I am currently pushing 13,000 miles. I run the stock tires with them right at 45psi. I really only started to spin the tires after I got the mufflers, best 60 foot is 2.1. My best reaction time so far is .599. Like I said I'm still trying to figure it out. A buddy who gets .510 / .520 R/T's all the time in his '89 GT ran my car once. He got the same dang .599 on the nose reaction time I did....but I still ran faster. Any who, the 14.52 and the 14.26 I ran was on 87 octane, but the 13.99 was on 92 octane. When I put the cold air kit on I noticed at the high end the car would ping very slightly, so I went to a higher octane

01-01-2002, 11:02 PM	#1
GREY01 Registered Member Join Date: Dec 2001 Location: athens, al Posts: 9	8's in 1/8 Mile on 87 Octane? Has anyone run in the 8's in 1/8 mile with 99-02 GT automatic while still using 87 octane gas (no additives)? If so, what mods were required? __________________ Charles Lewis 2001 Mustang GT Mineral Grey Auto Bone Stock (for now) 1991 Mustang 5.0 LX Coupe Dark Green 5 sp K/N filter, 13 deg timing Daily Driver

01-01-2002, 11:17 PM	#2
Ares Registered Member Join Date: Oct 2000 Location: Saxonburg, PA, USA Posts: 236	Sorry to say I havent seen a GT/auto break out of 14's in 1/4 here let alone run 8's in 1/8. If you have few mods I only recommend running 87octane. First off old racer tip is dont run it if you dont need it. Higher octane burns slower and can slow you down if car isnt designed or built to run higher octane for racing. I only use 87 for mine. __________________ Ed.. My Mustangs webpage NMRA M/M 7222 2000 Mustang GT - 5 speed Race weight w/o driver 3086lbs, 3250 w/ driver Best 1/4mile run to date: 12.79@105.96, 60' 1.76sec.(10-27-02) Best MPH 106.03(10-27-02)4.10gears

01-02-2002, 12:05 AM	#3
Turbo99GT Registered Member Join Date: Aug 2001 Location: Long Island, NY Posts: 71	I went 8.29 @ 86.xxx mph in the 1/8 with V2 S-trim @ 12 psi on my auto on 93 Octane. It would be stupid to risk an engine using 87. I have been much quicker/faster than 8s with the turbo with my stock auto which is now completely built. __________________ 99 Silver GT Auto DTA Built Engine w/P&P heads, TDC Turbo (T-76), Built 4R70W, PI Multi-Disc 3200 T/C, Eaton 31 Spline Carrier, Strange 31 Spline Axles, Aeromotive 1000 HP fuel system, 66lb injectors, MSD DIS4, Accel DFI Gen VII & Mac 3" cat-back. Built by Jade Performance Best on Nitto D/Rs 11.698 @ 120.898 @ 12 psi (built block) Best on Slicks 10.922 @ 122.95 (stock longblock)

01-02-2002, 02:19 PM	#4
GREY01 Registered Member Join Date: Dec 2001 Location: athens, al Posts: 9	I was hoping something like Bassini Off-road x-pipe, 4.10 gears, Transgo shift kit, drag radials, Mobil-1 oil, and K&N air filter might do it. I would think the gas octane requirement might not raise until timing was increased with something like the Steeda TA. __________________ Charles Lewis 2001 Mustang GT Mineral Grey Auto Bone Stock (for now) 1991 Mustang 5.0 LX Coupe Dark Green 5 sp K/N filter, 13 deg timing Daily Driver

01-07-2002, 12:54 PM	#6
FoxBuilder Registered Member Join Date: Sep 1999 Location: Columbus, Ohio Posts: 233	Well, first I don't believe any car is created equal, especially Mustang's. I have a 2001 GT Mineral Gray (automatic), check out my web page (needs updated I know) Bone stock my best E.T. is: 14.52@96mph With the only mod being 2-chamber Flowmasters: 14.26@97.14mph And with the addition of a MAC cold air kit: 13.992@100mph __________________ 2001 Mustang GT 4.6L w/AODE: K&N FIPK kit, 87mm MAF, 19lbr., H-Pipe, Mufflers, 2.73, stock rubber, (4) custom programs by me using Autologic chips. Best E.T. 13.890@100.0mph 1984 Mustang LX 5.0L w/T-5: BOSS, TFSTW, Vic. Jr., BG, trick stick.

01-02-2002, 02:51 PM	#5
joegodfrey Registered Member Join Date: Dec 2001 Location: Syracuse, NY Posts: 39	You will be fine on 87 octane, unless you do advance the timing,add boost to your engine, or increase the compression ratio. I'm not sure about what you will run with those mods, there's only one way to know for sure. Good Luck

01-07-2002, 01:31 PM	#7
joegodfrey Registered Member Join Date: Dec 2001 Location: Syracuse, NY Posts: 39	Those are some signifigant(sp?) improvements, have you put it on a dyno?

01-07-2002, 06:52 PM	#8
Freddie Quickest STOCK MOD Auto Join Date: Mar 2001 Location: Chesterfield County, VA, USA Posts: 61	My car is better with 87 octane. Higher octane seems to slow it down. I ran 8.98@79 MPH with 87 octane. See the sig for a complete list of the many mods I have. __________________ M/M #411 13.90@98.36 2.03 60ft 3500lb race weight Silver 2001GT 4R70W auto K&N Silencer removed Magnaflow Mufflers Motorsports cc breather

01-07-2002, 07:02 PM	#9
Ares Registered Member Join Date: Oct 2000 Location: Saxonburg, PA, USA Posts: 236	I take it one if the biggest things holding an auto back is the stock converter. What do they stall and/or flash at anyways? __________________ Ed.. My Mustangs webpage NMRA M/M 7222 2000 Mustang GT - 5 speed Race weight w/o driver 3086lbs, 3250 w/ driver Best 1/4mile run to date: 12.79@105.96, 60' 1.76sec.(10-27-02) Best MPH 106.03(10-27-02)4.10gears

01-07-2002, 10:34 PM	#10
GREY01 Registered Member Join Date: Dec 2001 Location: athens, al Posts: 9	Freddie and FoxBuilder, You guys give me great hope for my automatic GT! Were you manually shifting your autos or just running them in Drive? How many miles do you have on your cars? Are you running original stock tires on your cars? What air pressure and what kind of launch techniques? I know, lots of questions, but you guys are really putting down some good times for very little mods and on 87 octane! __________________ Charles Lewis 2001 Mustang GT Mineral Grey Auto Bone Stock (for now) 1991 Mustang 5.0 LX Coupe Dark Green 5 sp K/N filter, 13 deg timing Daily Driver

01-07-2002, 10:42 PM	#11
GREY01 Registered Member Join Date: Dec 2001 Location: athens, al Posts: 9	By the way, FoxBuilder, nice photo of your Mineral Grey 2001 GT. Had to go out and look in the garage to make sure mine was still there;>). It's cool how the paint takes on a grey shade when in soft light like your photo, but takes on a more dramatic goldish tint in the strong sunlight. __________________ Charles Lewis 2001 Mustang GT Mineral Grey Auto Bone Stock (for now) 1991 Mustang 5.0 LX Coupe Dark Green 5 sp K/N filter, 13 deg timing Daily Driver

01-08-2002, 12:45 PM	#12
FoxBuilder Registered Member Join Date: Sep 1999 Location: Columbus, Ohio Posts: 233	Freddie What kind of reaction times are you getting? Also, how are you launching the car? GREY01 The car is my daily driver, so I just put it in drive and punch the gas on yellow (still trying to find out witch one). I am currently pushing 13,000 miles. I run the stock tires with them right at 45psi. I really only started to spin the tires after I got the mufflers, best 60 foot is 2.1. My best reaction time so far is .599. Like I said I'm still trying to figure it out. A buddy who gets .510 / .520 R/T's all the time in his '89 GT ran my car once. He got the same dang .599 on the nose reaction time I did....but I still ran faster. Any who, the 14.52 and the 14.26 I ran was on 87 octane, but the 13.99 was on 92 octane. When I put the cold air kit on I noticed at the high end the car would ping very slightly, so I went to a higher octane __________________ 2001 Mustang GT 4.6L w/AODE: K&N FIPK kit, 87mm MAF, 19lbr., H-Pipe, Mufflers, 2.73, stock rubber, (4) custom programs by me using Autologic chips. Best E.T. 13.890@100.0mph 1984 Mustang LX 5.0L w/T-5: BOSS, TFSTW, Vic. Jr., BG, trick stick.

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