08 GT500 mods - Ford Mustang Forum
 
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post #1 of 14 (permalink) Old 04-14-2015 Thread Starter
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08 GT500 mods

I have a 08 gt500, completely stock, what are some mods that should be done first? I'm throwing a CAI and a tune, then lower and upper control arms to eliminate my wheel hop issues, what mods should i consider next and do i need any supporting mods? I want to run low 11s, this is an overall question, doesn't need to happen anytime soon, the budget will eventually come, I'm just not trying to throw on a new blower. I'm also looking for good tires that arn't street radials but will still hook real well, 285/40/18


Last edited by acwkls; 04-14-2015 at 09:34 PM.
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post #2 of 14 (permalink) Old 04-15-2015
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Welcome & congratulations on the purchase go the 08 GT500. This will be a long winded post-sorry! Also, opinions will vary but here goes:

I have an 08 GT500'as well. I didn't need the upper control arms to get rid of the wheel hop. I went with the Steeda lower control arms which solved most of the problem. I replaced the stock 18" tires & wheels with Shelby CS40 Chrome 20x9 & 20x10 wheels. Tires - Mickey Thompson Street Comp 255/35R20 & 305/35R20. Wheel hop gone and the tires are amazing! I had to recalibrate the speedo using my tuner and GPS (very easy). The stock lower control arms are crap so when you unbolt the stock LCM, the axle WILL shift out of position. Probably a better method but I used a ratchet strap to line up the mounting holes for the Steeda LCM. You will only need the ratchet strap on the first one. The Steeda prevented the axle from shifting so the other side was easy. Make sure the suspicion is loaded when you torque the bolts. Pretty sure you torque the bolts to 130ft/lbs. I reused my hardware but the Tech bulletin says to replace. Use your best judgement! Make sure you torque the bolts again after driving. Mine has been on for about a year now. I should probably tell you that when it comes to wheel hop, technique is everything meaning try different methods to launch and you'll be able to control the hop. May help you enjoy your car more before you get it fixed. I would fix the hop before adding more power. Just a suggestion but more power just makes the situation worse. I learned this advice the hard way by not listening to the advice from the forum members. LOL!

There are a lot of tuners and everyone thinks theirs is the best so I don't want to get into that discussion. If your car runs good afterwards, then great. I applaud their decision. I went with the SCT/XF4 from American Muscle with lifetime BAMA tunes. I buy something new, they email me the tune. Many tuners offer the same type of program. I installed the 127mm JLT carbon fiber CAI. I could tell the difference in power immediately. I also added the VMP Tuning 2.5" SC pulley and 90mm idler pulley. Do yourself a favor if you go with VMP and purchase their removal tool or check around many folks rent theirs out. I liked the VMP pulley because it looks like the stock pulley only smaller. The VMP tool removed the stock pulley without damage to the pulley. It takes a little bit of effort to remove the stock pulley so take your time. Just when your about to give up, the pulley will start moving. Many say they heard a popping noise but I didn't.

Spinning the super charger faster and increasing HP causes issues with oil being burned so plan on adding oil separators. I chose JLT oil separators for both driver and passenger side but I have never found any oil in the unit on the driver side so not sure it is needed but it makes my engine bay look balanced so I like it! Bobs ultimate oil separators is a good option. Little more expensive but the hoses look awesome. It was too late for me when I found it but the JLT separators work great so no need for me to change.

Spark plugs shouldn't be overlooked. I installed the NGK Laser Iridium plugs. Their not cheap but I work at NGK so I wouldn't feel comfortable running anything else in my car! Stock setting is .044 but your not stock at this point. After trials, I set the gap at .028 and the car runs really good. No issues.

I didn't like the stock exhaust so that was my first mod. I installed the Borla cat back stingers. I also hated the hood prop so I replaced it with the Redline Tuning hood struts.

I hope this information helps you. The setup works for my vehicle. As I said in the beginning, opinions will vary which caused me a lot of confusion when I finally decided to start modding my ride. Everyone's has good intentions when they offer their recipe for success but I got to a point that everyone with their different opinions may be right. In the end, I made the decision that if I made a mistake I would just look at it as lessened learned and do it again until got it right.

What's next on my agenda? Brakes, FRPP Cobra Jet throttle body, Borla off road headers.

Take care Slayer GT500

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post #3 of 14 (permalink) Old 04-15-2015
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post #4 of 14 (permalink) Old 04-15-2015
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Don't know why I can only post 1 pic at a time. Oh well...
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post #5 of 14 (permalink) Old 04-15-2015 Thread Starter
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I ordered myself a set of nitto nt555 performance tires, BMR upper and lower control arms, so i can finally get some grip, I already purchased a 148mm super big cold air intake from JLT, and I just purchased the tuner from american muscle with the BAMA tunes for life, I also got a cheaper pair of NGK spark plugs for now to replace the stock ones, I'm using paypal credit for the financing, afterwards I think I'm going to get a kooks long tube headers to catted shorty x-pipe exhaust, then work on getting the ex A lotra boost to the motor. A lot of great information, and that is a sick ass shelby, I am literally running on bald tires right now, so anyone I race from a complete stop walks me as I constantly spin.. What an embarrassment.
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post #6 of 14 (permalink) Old 04-15-2015
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Quote:
Originally Posted by acwkls View Post
I ordered myself a set of nitto nt555 performance tires, BMR upper and lower control arms, so i can finally get some grip, I already purchased a 148mm super big cold air intake from JLT, and I just purchased the tuner from american muscle with the BAMA tunes for life, I also got a cheaper pair of NGK spark plugs for now to replace the stock ones, I'm using paypal credit for the financing, afterwards I think I'm going to get a kooks long tube headers to catted shorty x-pipe exhaust, then work on getting the ex A lotra boost to the motor. A lot of great information, and that is a sick ass shelby, I am literally running on bald tires right now, so anyone I race from a complete stop walks me as I constantly spin.. What an embarrassment.
Headers are a waste of $$$ at anything under 600hp.

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post #7 of 14 (permalink) Old 04-15-2015 Thread Starter
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I figured if I ran more boost, I would need somewhere for all the extra air build up to go, rather than hurting the motor. I know a tune should prevent this, but will I be losing out keeping the stock manifolds?
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post #8 of 14 (permalink) Old 04-15-2015
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but will I be losing out keeping the stock manifolds?
No

Waiting on 2019 GT500

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post #9 of 14 (permalink) Old 04-15-2015
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Quote:
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Headers are a waste of $$$ at anything under 600hp.
They sound nice though! lol

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Quote:
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Headers are a waste of $$$ at anything under 600hp.
Not sure the headers are a waste of $$$. The stock manifolds and the cats are a restriction so always good to move the air. Also, the headers do sound awesome so if you can tolerate the sound on the highway then no worries. It all depends on what your wanting to do with your vehicle. Also should check your states emissions and header regulations. The GT500 would probably pass emissions testing without the cats but if the shop hooks it up to a computer or puts it on the lift they'll know their gone. LOL!

I will agree that very little performance improvements would be seen if any so a person needs to decide if the JUICE is worth the SQUEEZE. Mainly, sound and bragging rights.
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I did my friends 2007 GT500 build. Headers are not a waste of money on a higher HP F/I car like a GT500. I'd check out a tune from AED. Revan Racing and VMP tuning are great contacts for this. Evolution Performance is another top Shelby resource...you can order parts from them no problem but I've heard horror stories from people who have gone through them to do motor work.

Here is what we put in my friends 2007 GT500, we got 730+ rwhp on the stock motor:

2.8LC Kenne Bell Supercharger (can't remember what pulley)
Unlocked automatic transmission
American Racing Headers, X-Pipe
Corsa Axel Backs
3.73 (ended up having to switch to a 4.10 when we did the transmission swap)
Carbon Fiber driveshaft from driveshaft shop w/ BMR safety loop
Shelby 1000 Radiator, Intercooler, and reservoir tanks
Reische Thermostat
Cortex coil overs and Watts link
Steeda upper and lower control arms.
Eaton Detroit Locker differential
Lightweight Moser Axels
SuperSnake Gauges
Dyno tune from AED

It all started with a JLT intake and a tune. Now this car is capable of making 9 second passes on the 1/4 mile. We didn't spare any expense, wanted to get the max safe HP on the stock motor. Still able to change the tune, the pulley, and put in some race gas and make over 800 rwhp.

not to knock afm, but svtperformance and fordgt500 are way better forums for gt500 owners to learn and get help. I have a thread on there when I was doing the build.

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I like control arms and catch cans as some of the first mods for GT500s.


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Quote:
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I like control arms and catch cans as some of the first mods for GT500s.
I just texted you........

Waiting on 2019 GT500

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I have a buddy selling his take off 2014 TVS 2.3 with 2.4" pulley for $2000 + shipping. I'm running a takeoff TVS 2.3 with 2.5" pulley. Soon as I get rims and tires, I should be in the 10's. LMK if interested.

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