I ran a 13.8@101,and I have a question

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William741

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Bellefontaine, Ohio

Jun 18, 2005

#1

• Jun 18, 2005

• #1

My car now has a street heat intake, as well as the mods in my sig. My first run was a 14.0@101 w/ a 2.4 60', I got it down to a 13.8@101 w/ a 2.1 60'. I'm wondering, if i get some sticky tires, will I see a low 13? Also, I didn't lose trap speed when I cut 3 tenth's off my 60, whats going on there? Also, this is still a stock geared car. Thanks, Will

 

WhiteDevil

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Feb 4, 2003

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Jun 18, 2005

#2

• Jun 18, 2005

• #2

I think those times are good, as for low 13s that would take a pretty hard launch. With a similar combo i ran 13.68 @101.90 so u can get better

 

clang5oh

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Apr 17, 2003

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in a car that scares women and children

Jun 18, 2005

#3

• Jun 18, 2005

• #3

what rear gear are you running. i ran a 15.2 @ 90mph last night, i couldnt hook up at all. i would say there is at least half a second with dr's. mt et streets were hooking up really good last night whereas the nitto 555r's didnt hook up at all.

 

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William741

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Bellefontaine, Ohio

Jun 18, 2005

#4

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I know it'll do better, cause I raced an sti, and he ran a 13.6 at 97mph. He destroyed me off the line, but i would catch him past the 1/8th mile. I suppose tires are probably next. A friend said I could use his et streets, but im scared they're gonna hook really well and bog or my clutch is going to slip, lol. Oh well. See ya, Will

 

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yellow1995Cobra

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Dec 23, 2002

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Jun 18, 2005

#5

• Jun 18, 2005

• #5

William741 said:

My car now has a street heat intake, as well as the mods in my sig. My first run was a 14.0@101 w/ a 2.4 60', I got it down to a 13.8@101 w/ a 2.1 60'. I'm wondering, if i get some sticky tires, will I see a low 13? Also, I didn't lose trap speed when I cut 3 tenth's off my 60, whats going on there? Also, this is still a stock geared car. Thanks, Will

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Its kind of a myth that you will LOSE trap mph when your 60 ft comes down. The only way that could possibly happen is when you launch the car at the same rpm, the same clutch work and so on. It has to be exactly the same, then yes maybe if you pull a better 60 ur mph will come down.

But, if you go back to the track with some BFG DR's or other tire that will hook very well, and you can launch from ~5k rpms and pull a 1.6-1.7 60 ft, your MPh will come up somewhat, cause your launching the car with its full potential, not some girly 2k rpm launch.

Nice starter runs by the way. Get some sticky tires on there, i see no reason why 13.3-13.5 would not be possible.

 

CManT1914

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Feb 5, 2004

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Jun 18, 2005

#6

• Jun 18, 2005

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The lower the 60', the quicker you accelerate to a given speed. It's like this: when you do gears, they don't add any HP. But you car becomes quicker because they get you into your powerband quicker, and allow you to accelerate quicker. In the 1/4, you don't go any faster (trap speed anyway), you just get to that speed quicker (lower ET). It's the same with crappy and good launches. A crappy launch (like your 2.4) is gonna cause you to accelerate to your 101mph trap speed slower. A good launch (like your 2.1) is gonna allow you to accelerate to your trap speed quicker, meaning a lower ET, but the same trap.

 

clang5oh

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Jun 19, 2005

#7

• Jun 19, 2005

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just curious what rpm where you shifting at.

 

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William741

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Bellefontaine, Ohio

Jun 19, 2005

#8

• Jun 19, 2005

• #8

Thanks for the replies. My brother runs circle track, so he will give me some old hoosier slicks, and I figure since they're free I'll see how they do, lol. Before the intake, it fell on it's face at about 5200, now it's still pulls to around 6, so I'm shifting around 5800-6000. It's still the stock cam, so it probably doesnt have much in it past that. What are you guy's shifting yours at?

 

clang5oh

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#9

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i was shifting around 5000 rpms, only managed a 15.2 @ 90mph. friday i will let it go on up to 5800 rpms. does your car have the 2.73 gears (mine does) or the 3.08.

 

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SlowGT

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Jun 20, 2005

#10

• Jun 20, 2005

• #10

clang5oh said:

i was shifting around 5000 rpms, only managed a 15.2 @ 90mph. friday i will let it go on up to 5800 rpms. does your car have the 2.73 gears (mine does) or the 3.08.

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How much does that tank weigh? I've gotten better than that with the stocker in my sig, but it only weighs 3270 at the line. My 95 weighed 3580 at the line the last time I ran it. They say a tenth for every 100# of dead weight you lose. With your mods I'm thinking you should be making high 90's even with the 2.73's. Maybe not, I don't know. I put a Pro-5.0 shifter base on last week. Hoping to do a little better just with better shifting. I don't get along very well with the factory shifters

 

clang5oh

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Jun 20, 2005

#11

• Jun 20, 2005

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yeah i kinda figured i was off the pace a good bit. im gonna do a major tune up when i get some time.

 

302fordracer

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Jun 20, 2005

#12

• Jun 20, 2005

• #12

yeah with gears and tires I would be surprised if you didn't get at least a 13.3 I mean all you are missing is the cam and h/c/i guys usually run 12.90s...

 

94CobraPace

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Houston, Tx.

Jun 20, 2005

#13

• Jun 20, 2005

• #13

Yea, get the circle track tires & you should be 13.5 or better. If you are worried about bogging, don't let as much air out of the tire or run a a little extra so they will have a smaller contact patch & can break loose a little.

 

Swarzkopf

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Jun 20, 2005

#14

• Jun 20, 2005

• #14

I know it'll do better, cause I raced an sti, and he ran a 13.6 at 97mph. He destroyed me off the line, but i would catch him past the 1/8th mile. I suppose tires are probably next. A friend said I could use his et streets, but im scared they're gonna hook really well and bog or my clutch is going to slip, lol. Oh well. See ya, Will

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You can't use the STI's MPH as an indicator of what your RWD Mustang will do. My close friend has a 2005 STI and runs high 13s at 96-97mph...in a RWD car, 96-97mph is usually mid 14s.

With 101mph, I think you could do mid-13s with great traction. Low 13s are probably just a little out of your reach, unless your car loses ALOT of weight.

 

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William741

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Bellefontaine, Ohio

Jun 21, 2005

#15

• Jun 21, 2005

• #15

Yeah, I don't think ill be cutting the 60's of that sti, but it sure would be nice, lol. I'll chase down a set of 15" wheels, and try the circle track tires, and I'll go from there. Thanks for the replies, Will