2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt) - Mustang6G.com
2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt) - Mustang6G.com
Homepage Wiki MOTM Register Search Today's Posts Mark Forums Read Bronco Forum Ranger Forum Calendar Garage

Go Back   2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt) - Mustang6G.com > 2015+ Ford Mustang Forum > Shelby GT350 Mustang

Shelby GT350 Mustang Discussions of the 2015+ Shelby GT350 and GT350R Mustang

User Tag List

Thread Tools Search this Thread Display Modes
Old 07-13-2017, 02:55 PM   #1

Drives: Quick
Join Date: Oct 2015
Location: Global
Posts: 2,641
Thanks: 1,322
Thanked: 3,300 Times in 1,343 Posts
Mentioned: 164 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Dean Martin's GT4 Mustang

Multimatic learned quite a bit with the recent GT350R-C car and you can see much of it with the latest GT4 effort. I was lucky enough to have the opportunity for a pretty thorough study last weekend when Dean Martin and his Kohr Motorsport team came to Mosport up in Bowmanville, Ontario to run in the Continental Tire Sportscar Challenge. A second car being run by the Volt team was there as well. Anyway, I'll share what I can here and hope it provides some insight into just what goes into these cars. And maybe you'll decide to click and add one to your cart.


This car is a beast.

The car starts off as a body in white with a FIA-compliant roll cage and a seam welded body. The engines are done by Roush and restricted to certain class requirements. It uses a CPC crank and not a FPC. The TR3160 6 speed the GT350R-C cars used is gone and has been replaced with a Holinger sequential gearbox. An aftermarket one-piece aluminum driveshaft replaces the typical two-piece steel S550 shaft. The rear axle housing uses a Torsen differential with stock Ford axles. Brakes are all Brembo, six piston up front and four piston out back.

Starting off with the interior cabin, these cars are all business. You can see numerous fiber pieces along with a host of safety, data acquisition, and communications equipment everywhere you look.

The engine uses the regular GT intake manifold, ducting, and airbox. The GT350R-C car used the system from the GT350 but this car doesn't have that luxury. I believe the tubular exhaust manifolds are from the GT350 with the exhaust all custom after that.

Dry sump oil reservoir.

True dual exhaust system, just as God intended.

The aforementioned Brembo brake system stops this badboy on a dime. The fronts...


The Dynamic Suspesnion (Multimatic's own) DSSV 2-way coilover dampers (bump and rebound) are absolutely state of the art.


Atop the front struts are Multimatic's own camber plates. State of the art, they allow quick, repeatable camber changes by simply moving shims from one side to the other. Note the stitch welds on the strut tower, done via mig in ~1" beads with about an inch of space in between.

Sorry guys, if you want these for your street going Mustang, they aren't going to work with your production style struts and suspension. Price is just under 1k per side if you want them anyway.

Rear dampers...

Not to be out done by the front, the rear suspension uses a pretty trick sway bar that ties into a gorgeous CNC billet aluminum lower control arm.

The cars were using a fabricated arm which was recently upgraded to the hardware you see here.

The Continental series require Continental tires, naturally. On nothing less than the best - Forgeline. Wheel studs and lug nuts are from MSI Racing in Mooresville, NC.



The body is a mix of stock GT350 and Multimatic fabricated carbon fiber panels. To begin with, the hood, easily the most eye catching short of the massive rear wing. This baby is all fiber.

Hood latches are from Aerocatch.

Want one?


The doors are not to be outdone either. Feather light with a perfect fit.

The grill panel behind the honeycomb is from the GT350R which utilizes a slightly smaller opening than that of the non-R GT350. Front hook can be purchased from the Ford Racing catalog.

The lower, outside fascia openings are completely blocked off behind their respective honeycomb panels. The idea is to reduce excess airflow into the engine bay and its subsequent lift. The GT4 cars don't place coolers there ala the factory GT350 anyway.

The canards, or dive planes used up front are CF (but formerly sheet aluminum prior to homolgation) and are purely for aero, 100%.

They attach to the fender as well as the CF splitter below.

The splitter, yet another Multimatic custom CF piece, attaches to the body at the stock pickup points as well as via a pair of cable lanyards.

The rear wing was optimized for drag as much as it was for downforce. It is simply gorgeous.

Ignore the silly blue car that interrupted my all important wing documentation.

Miscellaneous. Fuel system...

Axle vent...

Air jack system and safety blocks...

I have a bit more to share but wanted to get this much up first. Dean/Kohr and Multimatic have worked very hard to make this happen. In my view they have a fantastic job with it. What do you think?

Last edited by Epiphany; 07-13-2017 at 03:49 PM.
Epiphany is online now   Reply With Quote
Old 07-13-2017, 03:03 PM   #2
Bcobb85's Avatar

Drives: GT350
Join Date: Jul 2016
Location: Houston, Texas
Posts: 134
Thanks: 165
Thanked: 57 Times in 32 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Nicely done detailed pics
2017 GT350 (900A)
Chassis H2749
Avalanche Gray (DR)
Black Roof (94B)
Black w/ White Accent Stripes (851)
Electronics Package (67T)
MODS: /Ford Performance Oil-Air Separators /Ford Performance Intake Filter /Ford Performance Lowering Springs /Ford Performance Exhaust /350R Front Splitter /Caliperfexion 4340 MP Caliper Bolts /Project 6GR Five Wheels
Bcobb85 is offline   Reply With Quote
Users thanking this:
Old 07-13-2017, 03:21 PM   #3
Twin Turbo
M6G Moderator
Twin Turbo's Avatar
Name: Paul
Drives: Mustang '05 GT
Join Date: Aug 2012
Location: England
Posts: 7,525
Thanks: 5,658
Thanked: 3,377 Times in 1,850 Posts
Mentioned: 172 Post(s)
Tagged: 3 Thread(s)
iTrader Score: 0 reviews
Brilliant photos...............gorgeous GT4. And Dean's a great guy
Twin Turbo is offline   Reply With Quote
Old 07-13-2017, 03:36 PM   #4
snaproll's Avatar
Name: Bruce
Drives: 350R/88LX/FR500S
Join Date: Feb 2016
Location: Naples Florida
Posts: 372
Thanks: 66
Thanked: 176 Times in 113 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
snaproll is offline   Reply With Quote
Old 07-13-2017, 03:37 PM   #5
FlowForm_Wheels's Avatar
Name: Jurrian
Drives: Ford Mustang
Join Date: Jan 2014
Location: Vista, CA
Posts: 1,217
Thanks: 273
Thanked: 670 Times in 402 Posts
Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
So awesome, thanks for posting up the photos
HRE Performance Wheels
Highest quality custom made to order wheels in the world. We are the Industry Standard.

Email: JurrianT@HREwheels.com - Office: 760.598.1960
HRE - Facebook - Instagram - Flickr - YouTube
FlowForm_Wheels is offline   Reply With Quote
Old 07-13-2017, 04:10 PM   #6
FP350S's Avatar
Name: Robear
Drives: 16 TY GT350
Join Date: May 2017
Location: Decatur, Texas
Posts: 190
Thanks: 93
Thanked: 90 Times in 55 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 2 reviews
Cool Shit...
FP350S is offline   Reply With Quote
Old 07-13-2017, 04:21 PM   #7
Clink's Avatar

Drives: '14 Focus
Join Date: May 2014
Location: FL
Posts: 4,094
Thanks: 1,635
Thanked: 1,200 Times in 756 Posts
Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 1 reviews
Amazed as I kept scrolling, awesome pics thanks for sharing!
Clink is offline   Reply With Quote
Users thanking this:
Old 07-13-2017, 04:35 PM   #8
Large Member
HISSMAN's Avatar

Drives: 2016 Oxford White GT/PP Premium
Join Date: Jun 2016
Location: West Virginia
Posts: 2,911
Thanks: 716
Thanked: 1,334 Times in 787 Posts
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 2 reviews
Those camber plates are sex!
2016 GT Premium W/PP and Recaro Seats
Twitter: @jeffery_hoops_2 Instagram :jeff_hoops_two
HISSMAN is offline   Reply With Quote
Old 07-13-2017, 04:41 PM   #9
Muligan's Avatar

Drives: JR265 (base 920A)
Join Date: Dec 2016
Location: North Central Illinois
Posts: 708
Thanks: 52
Thanked: 554 Times in 268 Posts
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Great pics - lots of detail.... thanks for sharing.

I can say from experience, that stitch welding is very labor intensive. Been doing a bunch of it lately on my '65 Mustang vintage racer.......


Muligan is offline   Reply With Quote
Old 07-13-2017, 06:44 PM   #10
9/11 - Never Forget

Drives: G0853; 2015 Tacoma
Join Date: Feb 2016
Location: New England
Posts: 1,814
Thanks: 3,336
Thanked: 961 Times in 615 Posts
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Awesome stuff @Epiphany
Thanks for posting
Amazing access and pics!

Last edited by Tank; 07-13-2017 at 07:45 PM.
Tank is offline   Reply With Quote
Old 07-13-2017, 07:37 PM   #11

Drives: 2017 GT350
Join Date: Apr 2017
Location: PA
Posts: 234
Thanks: 32
Thanked: 85 Times in 55 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Is the HP reported anywhere?
JT1 is offline   Reply With Quote
Old 07-13-2017, 07:40 PM   #12
dron_jones's Avatar

Drives: Me crazy, and I can't help myself
Join Date: Mar 2016
Location: Fell into a pot hole in Michigan and can't get back out
Posts: 1,182
Thanks: 190
Thanked: 897 Times in 463 Posts
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
I had the good fortune of visiting their shop which is right down the road from my house about 8 weeks ago and saw the cars up on the lift..... So much want.....

I am having Dean and team do the install of my lowering springs, camber plates and a few other small items. Very excited to have such a professional performance shop close by to do the work on my car.

For anyone who has never talked to Dean before, couldn't be a nicer guy, never once did he make me feel unwelcome or too good to talk to me about the work on the car. It was a very refreshing experience compared to some of the other shops I have been to in the past.
2017 Delivered 09/20/2016
Car - GT350 (900A)
Color - Avalanche Gray (DR)
Electronics Package - (67T)
Black Roof - (94B)
Full Vehicle Cover - (21S)
dron_jones is offline   Reply With Quote
Users thanking this:
Old 07-13-2017, 08:19 PM   #13
Demonic's Avatar

Drives: GT350R
Join Date: Feb 2017
Location: Boston
Posts: 490
Thanks: 184
Thanked: 409 Times in 185 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Weren't the first GT350R-C's using the FPC's? I could have sworn I remember reading an article about the sound being what made them easily recognizable during the Continental championship. Awesome pics, thanks. And yeah, stitch welding was always done on the BMW race cars too. It was one of those signs of someone's car having gone off the deep end into being a race car.
GT350R 2017 Chassis HR296
ActiveAutowerke M3 1995
Demonic is offline   Reply With Quote
Old 07-13-2017, 08:21 PM   #14

Drives: BMW E90 M3 | GT350R
Join Date: Jan 2017
Location: San Francisco
Posts: 197
Thanks: 133
Thanked: 128 Times in 74 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 0 reviews
Really awesome thread. Keep the pics and info coming!
FogcitySF is online now   Reply With Quote
Old 07-13-2017, 10:00 PM   #15
kart125's Avatar

Drives: 2017 GT350/2008 Saab TurboX SC
Join Date: Oct 2016
Location: Montreal, Qc
Posts: 275
Thanks: 24
Thanked: 109 Times in 69 Posts
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
iTrader Score: 1 reviews
Wow it's like having access to God's shop just before he created humanity!! Nice write up as always Epiphany! If those canards are ever available I'll take a set!
kart125 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mustang GT4.R vs Camaro (ZL1 1LE)GT4.R JohnZiraldo Ford Mustang versus? 91 08-11-2017 05:52 PM
Ford Mustang GT4 vs. Camaro GT4 ATX Shelby GT350 Mustang 5 03-29-2017 02:09 PM
Camo: is this an Aston Martin or Mustang? UMDrummer General Automotive Topics (non 6th Gen Mustang) 13 05-10-2016 10:04 AM
Mustang vs Aston Martin martin Ford Mustang versus? 35 02-02-2015 05:20 PM
Aston Martin vs Mustang martin Mustang S550 General Forums 8 07-27-2014 05:35 AM

All times are GMT -4. The time now is 11:57 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
User Alert System provided by Advanced User Tagging v3.2.4 (Lite) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.Navbar with Avatar by Motorradforum

Garage vBulletin Plugins by Drive Thru Online, Inc.