The Mustang Forum for Track & Racing Enthusiasts

Taking your Mustang to an open track/HPDE event for the first time? Do you race competitively? This forum is for you! Log in to remove most ads.

  • Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!

S550 Pumpkin GT Build Thread Profile - S550 Mustangs

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

539
687
Exp. Type
Time Attack
Exp. Level
3-5 Years
SoCal
I've always been a car nut and always admired road racing though I never thought I would ever get to that point nor did I know where to start. I knew basic mechanics from tinkering on my first car but never did anything major. Once I was in the financial position to buy a new car, I jumped on the opportunity. I purchased this Mustang new in April of 2018. I wanted a car that was fun but also something that I could learn from. I had the intention of taking some advanced driving class of some sort somewhere along the way.
One day, a friend of mine tells me about NASA and an open track day they had at my local track. I looked into it and was instantly hooked on the idea of HPDE. I finally found where and how to start.


I want to add that in no way, shape, or form do I know what I'm doing. I'm learning as I go and meeting some great people along the way.

(the beginning of this journey started here)
 
Last edited:

JDee

Ancient Racer
1,801
2,005
Exp. Type
W2W Racing
Exp. Level
20+ Years
5 miles from Mosport
I want to add that in no way, shape, or form do I know what I'm doing.

Love that! We all were there at one time or another, but it's the smart ones that admit it. Some of us failed that test and that just lengthened the learning curve!! Car looks great and you look like you're on the right track with mods.
 
539
687
Exp. Type
Time Attack
Exp. Level
3-5 Years
SoCal
Love that! We all were there at one time or another, but it's the smart ones that admit it. Some of us failed that test and that just lengthened the learning curve!! Car looks great and you look like you're on the right track with mods.
Thank you sir! I've seen bone stock Mustangs do quicker lap times than myself so I see no reason to throw more money at the car than I already have. Need more driver mod haha
 
539
687
Exp. Type
Time Attack
Exp. Level
3-5 Years
SoCal
Love that! We all were there at one time or another, but it's the smart ones that admit it. Some of us failed that test and that just lengthened the learning curve!! Car looks great and you look like you're on the right track with mods.
I noticed in your build that you want to replace your brake ducts with the Vorshlag deflectors. I'm in the same predicament. My current backing plates do not sit close enough to the rotor for optimal air flow through the rotor vanes. I've considered the Vorshlag plates as well but I'm concerned they wouldn't provide sufficient cooling, compared to good ducts. (Pretty much every race car uses ducts so I would assume those work the best.)
 
1,055
1,104
Monaca Pa
I noticed in your build that you want to replace your brake ducts with the Vorshlag deflectors. I'm in the same predicament. My current backing plates do not sit close enough to the rotor for optimal air flow through the rotor vanes. I've considered the Vorshlag plates as well but I'm concerned they wouldn't provide sufficient cooling, compared to good ducts. (Pretty much every race car uses ducts so I would assume those work the best.)
From what Terry says in testing ,the deflectors cool the brakes better than 3” hose kits. I bought a set from him and will see in April how they work.
 
...I've considered the Vorshlag plates as well but I'm concerned they wouldn't provide sufficient cooling, compared to good ducts. (Pretty much every race car uses ducts so I would assume those work the best.)

That's exactly what I thought until we did the tests. I figured the flaps would be OK, but there was no way they would be better than a pressure ducted backing plate. I'll admit I was floored when we did the test and found the flaps performed better than the backing plates in every scenario. The only caveat is that you -have- to have the tunnels in the front undertray. These came in all the Performance Pack and Shelby cars, but weren't in our base model GT until we added the PP splitter and tray.
 
539
687
Exp. Type
Time Attack
Exp. Level
3-5 Years
SoCal
That's exactly what I thought until we did the tests. I figured the flaps would be OK, but there was no way they would be better than a pressure ducted backing plate. I'll admit I was floored when we did the test and found the flaps performed better than the backing plates in every scenario. The only caveat is that you -have- to have the tunnels in the front undertray. These came in all the Performance Pack and Shelby cars, but weren't in our base model GT until we added the PP splitter and tray.
I read the report when you guys released the test results. Awesome results! My only hesitation was that it compared the flaps to the rather "smooshed" 4" ducts which I would think could possibly restrict air flow. Not trying to discredit or be rude here, just pointing out potential concerns. Maybe you've already debunked this and I'm late to the game.
 
539
687
Exp. Type
Time Attack
Exp. Level
3-5 Years
SoCal
Finally getting some fun work done on the car! I've been wanting to add hood venting for awhile now and decided today was the day.

Now, I've never cut up a car before and I only have minimal metal working experience so this was quite the pucker! The instructions supplied are very clear and the template works great. I have to add, Race Louver customer support is second to none! I've been annoyingly emailing Albert for months now with various questions and he is beyond helpful. I called him halfway into cutting and he was quick to answer my questions. He even called me back later in the day to check on my progress and see if I had anymore questions before he left for the day. Albert, if you see this, THANK YOU!

The entire process was quite straight forward. Time consuming, but straight forward. I HIGHLY recommend taping the entire hood as metal shards and fragments get everywhere. I then used moving blankets to cover the engine and the windshield.
For finding dead-center, I used a long strip of floss and taped it to the center of the windshield (small decal label there perfectly in the center) and then pulled it tightly over the hood and lined it up with the crease line in the front bumper. Then simply measure about 17 different times and tape down the template.
I used a Dremel to cut the whole thing. Took 1 diamond cutting disc (or whatever the more expensive disc is made of) and 2 regular metal cutting discs. I tried to cut it all with the hood still on the car but getting the bottom layer cut correctly requires the hood off. After that, it's cut, trim, measure, and repeat till it all fits snug.

upload_2020-5-30_23-6-5-png.png

upload_2020-5-30_23-6-35-png.png

upload_2020-5-30_23-7-5-png.png

upload_2020-5-30_23-7-36-png.png
 

PaddyPrix

If breakin' parts is cool, consider me Miles Davis
728
1,088
Exp. Type
Time Attack
Exp. Level
Under 3 Years
San Diego
539
687
Exp. Type
Time Attack
Exp. Level
3-5 Years
SoCal
A little late to update here but suspension has finally found its way on the car! No more floaty boat feeling!

BMR SP083 Springs (250/980#)
Ford Track Shocks
Vorshlag CC Plates
BMR Front Sway Bar (35mm?)
GT350R Rear Sway Bar
BMR CB005 IRS Lockout

Thanks to @flyhalf for the great hand-me-down parts! Maybe his Italian spirit will carry over to my driving, haha!

As far as alignment specs, the car is currently at -2.6 front camber and -1.1 rear. The tech was having a bit of trouble getting the rear camber to where I wanted it (-1.5 desired) so we ended the day at -1.1 I'll likely go up from there but I'll try the car as-is first.

Haven't had much time to really feel out the new setup yet but it definitely feels stiffer and more responsive. I'll have to go through some canyons this weekend.

1594146519618.png
 

TMO Supporting Vendors

Latest posts

Buy TMO Apparel

Buy TMO Apparel
Top