GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Some pics of the race wheels/tires

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Old Aug 11, 2005 | 07:06 PM
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[attachmentid=30353][attachmentid=30352][attachmentid=30351][attachmentid=30350][attachmentid=30349][attachmentid=30348][attachmentid=30347][attachmentid=30345][attachmentid=30344]Here are some pics of the 15" Bogarts with M/T ET Drag tires 28x10.5-15. It is a bit dark for pictures, but you can still see them. Now I just need to get them on the track!
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Old Aug 11, 2005 | 07:11 PM
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Those look good! You'll do some damage for sure with-em, unless it sets your ratio too low.
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Old Aug 11, 2005 | 08:03 PM
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I'm working on the tuning for it. The 4.56's turn them pretty good. I've been asking around as to whether the taller tires affect the torque management in a manual. So far, I've gotten two different answers. I need to work on the tune anyways. I think there is a bit more power in there and with lowering the AFR.
On a bathroom scale, the stock tires weigh 46lbs. The new rear's weigh 37lbs and the fronts weigh 27lbs. So...I shed 56lbs total and 38lbs of that is off the front end.
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Old Aug 11, 2005 | 08:26 PM
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That's a substantial weight loss! Havn't I seen posts where the torque management system can be turned off with the SCT2, or is it just my wishful dreaming?
Also, your 12.83 run was made with 4.56's?

I forgot to turn off TC twice and it went into failsafe mode!

Paul
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Old Aug 11, 2005 | 08:54 PM
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That time is with those gears. I also had the wrong pinion angle/wrong rear end geometry. Once I get my tune correct, I should do a lot better than 12.83. No predictions yet though.
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Old Aug 11, 2005 | 09:31 PM
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Too bad the weather isn't a little cooler. I will be interested to see how the sidewalls affect your times.
Re: A/F, with the set up you have, it would be nice to tune the car actively under a load.



Paul
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Old Aug 11, 2005 | 09:35 PM
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I'm about to finally get the wideband bung welded in so I can datalog. This will really help out a lot. I'm also going to find a Mustang dyno soon to dyno under load.
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Old Aug 13, 2005 | 09:29 AM
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Here's some better pics in daylight!
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Old Aug 13, 2005 | 02:33 PM
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Here are some of the relocation bracket
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Old Aug 13, 2005 | 03:34 PM
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darn that looks good!! I cant wait to see that thing up at moroso again
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Old Aug 13, 2005 | 04:27 PM
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oh yeah!

That pony is ready for some serious action, make us proud at the track
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Old Aug 13, 2005 | 04:39 PM
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Where the heck have you been Jan?
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Old Aug 13, 2005 | 07:03 PM
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talk about filling the wheel wells up!

You try any launches with em yet?
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Old Aug 13, 2005 | 08:26 PM
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Lookin good David!
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Old Aug 13, 2005 | 08:56 PM
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Originally posted by Stoenr@August 13, 2005, 7:06 PM
talk about filling the wheel wells up!

You try any launches with em yet?
I have once at the track, but I had some other issues going on.
1. when the dealership replaced my tranny under warranty, they did a swap (as expected). The problem is that I have an aftermarket clutch (RAM) and the slave master needs 2 shims, totally about 5/16" thick. I made it known to the mechanic, but he forgot. :angry: So...my clutch isn't fully disengaging and it's killing me to know that it's just getting ate up. It also makes it hard to shift into any gear after I launched. I was all discombobulated when I rev'ed up and the car was creeping forward, set of the red light. I still launched it at 6400 rpm's. My buddy said the front tire came up, but I really don't believe him. He drives an SRT and I've been taunting him by telling him to "let's see you pull your front tires off the ground like I will." (SRT's are front wheel drive).
2. I have a CEL that keeps coming on and was on when I ran. It's P2195 which means that the left bank is lean and the pcm makes it overly rich to compensate. Caused by a variety of things. I've replaced the O2 sensor, checked for exhaust leakes, etc. etc. I need to have it hooked up to a computer to see exactly what is causing the CEL. The car was puffing some smoke as I shifted.
3. Due to not having a adj. panhard bar, by axle was shifted to the left due to the car being lowered 1". It has never been an issue, but now that I have 10.5" wide tires, it was rubbing on the inner fender on the right side. I've since installed a new panhard bar as seen in the pics.
4. The car ran kindof sluggish. I'm not sure if it's due to the CEL and running rich or if torque management would be effected by a 2" taller tire.
5. The last thing is that I don't have a rear swaybar on now. It launches pretty straight, but the left side comes up way higher than the right. The car twist's like crazy. Today, I was trying to figure a way to put the panhard back on with some modification. I haven't welded in a long time and don't have the equipment...so, I may go find someone that can make it work or see what Blazing Saddles comes up with. I'm going to try to make it up the the NMRA finals in Kentucky-end of Sept. I won't go if I don't have everything in order though.
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Old Aug 13, 2005 | 09:10 PM
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Bogarts dont seem to have center caps I see.You would think after all they charge for them that they would make a centercap to complete the look.
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Old Aug 13, 2005 | 09:13 PM
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Originally posted by Blazing Saddles@August 13, 2005, 6:26 PM
Looks like you're ready to put all that power to the ground.
George,are you running your 05 next week at FFW?And if so what class.Seems like real street would be the one.Or the one that you cant run quicker than 12.5.I am trying to decide if it is worth it or not.With my new 4.10s I should be able to go high 12,s.
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Old Aug 13, 2005 | 09:27 PM
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Originally posted by mikem@August 13, 2005, 9:13 PM
Bogarts dont seem to have center caps I see.You would think after all they charge for them that they would make a centercap to complete the look.
You're the only one to notcie Mike They come with some, but as soon as I tightened the last lug, I noticed I forgot to put the on. I started to go get them and said forget it. No one will even notice.
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Old Aug 13, 2005 | 09:49 PM
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In due time she'll be runnin like a top!
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