GT Performance Mods 2005+ Mustang GT Performance and Technical Information

First time at the track!

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Old Jan 12, 2005 | 09:42 PM
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Well, tonight, I had my first run at the track ever.

1st run 2nd run
R/T .482 .357
60' 2.158 2.146
330 5.878 5.888
1/8 8.976 8.981
MPH 79.86 79.96
1000 11.605 11.606
1/4 13.805 13.803
MPH 102.95 103.31

I had way too much wheel hop. I intended on feathering the clutch on my second run, but I guess I saw the light and just got on it. My first runs ever and will get better with time. There was another 05 there that ran 12.99 in the 1/4. He had the SCT tune, Steeda CAI, no cats w/ flowmasters, U-drive pullies and Nitto drag radials. Someone else told me he had 3:73 gears, but I didn't hear that from him. He supposedly runs quite a bit and is very consistant. I guess this car can run in the 12's with few mods and experience. I'm happy! Atleast I broke 14's for my first time running ever!
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Old Jan 12, 2005 | 09:50 PM
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whoa! nice job.

the 05 is real capable. cant wait to see what times are going to be put up in a few more months
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Old Jan 12, 2005 | 09:51 PM
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Very Nice!
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Old Jan 12, 2005 | 09:56 PM
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Nice job Dave! The other '05 may have been UPR's. Was it Torch Red? I know they have one and they are running it at Moroso. With the right set-up that car may go into the low 12's.
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Old Jan 12, 2005 | 10:12 PM
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No, the 12.9 pony was Black. Some other guys were saying that particular guy ran 13.35 all three passes last week. Since, he installed the CAI and supposed gears. He was really hooking good too with quick reaction times. Should I post my slip or are this times bad enough that it's believable without posting a pick of the slip? haha
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Old Jan 12, 2005 | 10:17 PM
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I believe ya. Dave, can you pass me the name of the saleman (contact info) where you got your's? Please IM/email me whenever you have the time. I know you are very busy. Thanks.

How was the track? I miss going on Wed nights. Not too many cars usually there.
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Old Jan 12, 2005 | 10:28 PM
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The track was great, but too many cars!!!!I got there at 6:30 and had my first run at 9:05. My second run was at 10:35. There were only a few breakdowns on the track which means lots of cars. I'll PM you with the info.
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Old Jan 12, 2005 | 11:05 PM
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That's awesome. i can't wait to go to a track, need an 05 first though
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Old Jan 12, 2005 | 11:28 PM
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I wnet to a track up near me w. my dad but i was too nervous to race (too many ppl watching!) I need to practice W/O all the stares . . . just dont know where to go to do that!
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Old Jan 12, 2005 | 11:46 PM
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Good run first time out.
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Old Jan 13, 2005 | 12:20 AM
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Good runs! Get those launches down to lower the 60's a little bit and you probably can see 13.6's with stock rubber. Maybe lowering the pressure on the rears to 25psi might get you a little more bite too
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Old Jan 13, 2005 | 04:02 AM
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Great runs Did you stay in third or shift to fourth?

The Boss Hog
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Old Jan 13, 2005 | 07:09 AM
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Originally posted by MarStang15@January 13, 2005, 12:31 AM
I wnet to a track up near me w. my dad but i was too nervous to race (too many ppl watching!) I need to practice W/O all the stares . . . just dont know where to go to do that!
I'm not sure what kind of cars are running where you're at, but at Moroso, everyone is there just having a good time. I can't say that I've heard ANYONE making fun of anyone else. Everyone starts sometime. There was everything from Ford Festiva's, trucks, a high 12's Durango, old Mazda's, I mean everything. Times run anywhere from low 8's to the 20's. Don't worry about what others will think, just go have fun. I know my car can do a bit better time with more practice and I had people come up to me surprized that it broke 14's mostly stock. It's all just pure fun!
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Old Jan 13, 2005 | 07:13 AM
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Originally posted by The Boss Hog@January 13, 2005, 5:05 AM
Great runs Did you stay in third or shift to fourth?

The Boss Hog
I do have the SCT tune and my RPM's were right at 6000 at the end of the track. I felt like I needed to shift, but from what I've read, going into 4th will only hurt you. Hopefully I can remove the bad wheel hop I experience and be able to get down the track a bit quicker. Did your control arms help out at all? I've been waiting for you to post your outcome of your control arms. If it works for you, I'll be heading down to pick me up some.
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Old Jan 13, 2005 | 07:18 AM
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Originally posted by kevinb120@January 13, 2005, 1:23 AM
Good runs! Get those launches down to lower the 60's a little bit and you probably can see 13.6's with stock rubber. Maybe lowering the pressure on the rears to 25psi might get you a little more bite too
Everyone was telling me to take some air out, but I figured why bother when it's only my 2nd run ever. I want to get my adrenalin rush out of the way when I'm at the line before I start doing anything else. Like I mentioned, I intended on feathering the clutch on my second run, but was too excited when the light turned and still dumped the clutch. I spun and hopped the tires into 3rd. I was on it pretty hard. Once I remove the hop, I will be messing around will the air pressure.

I haven't seen you around here lately Kevin?

Thanks
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Old Jan 13, 2005 | 07:58 AM
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David I posted earlier about mine and Lucy's first day at the track, I launched at 4000-4500 and noticed bad wheel hop if ya dump the clutch. When I feathered the clutch it was a nice response. I eventually took the air pressure to 25 psi and noticed a better grip on these stock tires. I don't have a tune yet and was running completely stock and had terrible reaction times, but still wound up pulling a 13.9 Very surprised that it pulled that with no mods. Also I shifted at 5000-5500 rpm. When i return to the track I'm gonna try to launch at 2000-3000 rpm and see if I can eliminate the hop. Can you tell me what ya launched at and what your shift points were. I'm trying to get several options available to see which will work the best. Thanks
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Old Jan 13, 2005 | 08:05 AM
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Originally posted by RiverDiver@January 13, 2005, 9:01 AM
David I posted earlier about mine and Lucy's first day at the track, I launched at 4000-4500 and noticed bad wheel hop if ya dump the clutch. When I feathered the clutch it was a nice response. I eventually took the air pressure to 25 psi and noticed a better grip on these stock tires. I don't have a tune yet and was running completely stock and had terrible reaction times, but still wound up pulling a 13.9 Very surprised that it pulled that with no mods. Also I shifted at 5000-5500 rpm. When i return to the track I'm gonna try to launch at 2000-3000 rpm and see if I can eliminate the hop. Can you tell me what ya launched at and what your shift points were. I'm trying to get several options available to see which will work the best. Thanks
Maybe I was explaining it incorrectly, but I didn't have the rpm's up and then dump the clutch. I pretty much sat there at idle, stepped on the gas and let the clutch out. Goes to show my lack of experience at the track. I can feather the clutch just fine on the street. I guess it's just due to my adrenalin flowing. I didn't target any particular rpm's for shift points, but I shifted between 5500 and 6000. I've read that the best rpm to shift at is at 5500-based on dyno curves. I just need the practice!
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Old Jan 13, 2005 | 08:12 AM
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Good job. I won't get mine out to the track until the summer but at least from these threads I get an idea on what to expect.
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Old Jan 13, 2005 | 09:17 AM
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Originally posted by 169stang+January 13, 2005, 6:16 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (169stang @ January 13, 2005, 6:16 AM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-The Boss Hog@January 13, 2005, 5:05 AM
Great runs Did you stay in third or shift to fourth?

The Boss Hog
I do have the SCT tune and my RPM's were right at 6000 at the end of the track. I felt like I needed to shift, but from what I've read, going into 4th will only hurt you. Hopefully I can remove the bad wheel hop I experience and be able to get down the track a bit quicker. Did your control arms help out at all? I've been waiting for you to post your outcome of your control arms. If it works for you, I'll be heading down to pick me up some. [/b][/quote]
Going into 4th won't affect your ET as much as it will hurt your top speed.

All these people on this site and others that are questioning low trap speeds with fast ET's don't get it. Each shift (manual transmission) costs you .25-.4 secs of acceleration. You are still coasting, so it isn't like you are losing .25-.4 seconds of ET, just of acceleration. If you analyze the graphs from a GTimer or GTech, you can extrapolate and find out that a .3 second shift (that's the speed I shift, yes, I am slow) costs you a few miles per hour in the 1-2 shift, a few in the 2-3 shift as well. If you can shorten your shift time, you can gain a few mph trap speed. If you shift slowly, you lose a few MPH trap speed, all with very similar ET's

The first time owners will shift more slowly. As people refine their technique and reduce the time spent off-throttle, trap speeds will rise. As people perfect their launches and shift points, ETs and trap speeds will improve as well.

In the attached picture, you can see how going into 4th hurts (the blue run I had to shut down early, safety issue on the road).

The red and orange lines I've added help visualize the cost of each shift. If you shifted without delay (F1 paddle shifter for example, or a very tight automatic), you eliminate the acceleration pause. Your car SHOULD be going the speed represented by where the right orange vertical line and the sloped red line meet, but you are really going the speed where the right orange line and the GREEN line meet. The difference is the lost speed due to shift.

If you shift just before 1/4 mile, you will lose a few MPH
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Old Jan 13, 2005 | 11:03 AM
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Originally posted by 169stang+January 13, 2005, 10:16 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (169stang @ January 13, 2005, 10:16 AM)</td></tr><tr><td id='QUOTE'><!--QuoteBegin-The Boss Hog@January 13, 2005, 5:05 AM
Great runs Did you stay in third or shift to fourth?

The Boss Hog
... Hopefully I can remove the bad wheel hop I experience and be able to get down the track a bit quicker. Did your control arms help out at all? I've been waiting for you to post your outcome of your control arms. If it works for you, I'll be heading down to pick me up some.[/b][/quote]
Well, yes and no Before I installed the lower arms, I could not even clean off the tires without a lot of wheel hop. After installation, I was able to do a nice, clean, control burnout but when I tried to slip the clutch, it still broke into some wheel hop. My hat is off to all the people who can successfully control the clutch well enough to get the outstanding sub 2.0 60 ft. times with the stock setup.

I have talked to BMR and will be replacing the top link as soon as it is available.

The Boss Hog . . . . . still trying
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