245-MPH S550! Inside The World’s Fastest 2015+ Mustang
Likewise, Chad opted for a familiar engine combination. One that he had plenty of experience with and one that he knew could withstand the kind of abuse applied by a full mile of Jordan standing on the accelerator pedal.
“As far as power goes, I knew we needed to make reliable power and most importantly for long durations if, we were going to do these types of events,” he said. “I work solely with Bischoff Engine Service. Having made 2,000-plus horsepower with the Trinity 5.8 multiple times with multiple cars, to me it was an easy decision to do a Trinity and give Tony Bischoff the go-ahead.”
While there are certainly plenty of powerful 5.0-liter engines out there, Chad just didn’t want to take any chances given the intense environments where Nemesis would compete.
With the Coyote scene in full swing, many people probably wonder why we didn’t keep the 5.0? — Chad Epperson, London Chassis Dyno
Those turbos are based on Borg-Warner 76mm housings and supported by tubing from Race Parts Solutions and hoses from Forced Inductions. While turbos are a pretty modern power adder, Chad definitely went retro on the ignition side of things in deference to the simplicity of a proven combo.
“We decided to throw a curve ball at the masses by using a valve cover-mounted distributor drive,” Chad explained. “The fuel and spark is controlled by Big Stuff 3, and the ignition is run by an MSD 7531. This makes the car like 90 percent of the 4-second drag radial cars out there. ‘Keep it simple’ has been the idea from the start…”
Getting The Job Done
From the 5.8 engine to the distributor, Chad definitely followed the plan. Keeping it simple right down to the lack of a high-end traction control system. Jordan gets that job done with his right foot, as evidenced on his first run in Texas, where the car got a bit off track.
“We made two full passes this weekend at The Texas Mile with the first going 237mph after losing traction and getting sideways around the half mile. The second pass went 245.1 mph,” Jordan added. “On that pass the glue popped loose on the windshield around 235 mph causing me to lift for a split second before getting back in the throttle. At those speeds a split-second blip in the throttle easily causes a 5-plus-mph drop. The tuning was very conservative to keep the engine healthy at WOT for 20-plus seconds. The car is definitely capable of a lot more.”
Nemesis 2015 Mustang Mods
Chassis: Spec 25.3 by London Chassis Dyno
Front Suspension: London Chassis Dyno custom w/ BMR K-member and A-arms
Engine: BES 5.8-liter engine w/ 2013 GT500 intercooler, 2013 GT500 intake, custom bonnet and 105mm throttle body
Fuel Injection: Big Stuff 3
Fuel System: Fore Innovations w/ two Weldon 2345 pumps
Ignition: MSD Ignition Digital-7 Plus Programmable Ignition Control w/ distributor
Transmission: ATI TH400 and ATI torque converter
Windows: Optic Armor
Wiring: Spaghetti Menders
We can’t wait to see how quick and fast Weir Racing’s multipurpose Mustang will run in the future. Propelling a stock S550 body to nearly 250 mph without the aid of traction control is definitely an impressive feat.