New Build: Shelby Cobra Daytona Coupe CSX9126

[ERA Chas]

Originally Posted by Pliskin

ERA Chas/Twin Turbo-Big block FF Daytona? Hope that's an Aluminum motor unless handling was not a concern. Factory Five makes a nice roadster, friend of mine has a nice one, but I have to say their Daytona is plain goofy looking. Every time I've seen one I can't get past the shape of the body. I have no idea what they used as inspiration but they definitely got it wrong.
Interesting points concerning the exhaust and I suppose I will find out soon enough. Looks are not "all" that's important to me, function is as well. ERA Chas, you said your friend was trying to run the small pipes on a big motor, wonder what he expected to happen. The Shelby is engineered for the use of a small block motor only. I'll be running a 611 hp 427 inch small block so perhaps my combination will be more complimentary. I would think they have the exhaust worked out properly. Hopefully there won't be any surprises.

Happy Motoring;
Snake

You misunderstood several things. It is NOT a twin-turbo big block-that's the screen name of the #28 poster. It IS an all aluminum, big roller cam, FI FE. Yes the FF Coupe has inaccurate shapes, but it was chosen to be a track car and not a concourse car. It was greatly cut and altered for a full roll cage and frame strengthening. It was chosen for the huge cost difference between it and Shelbys.
The builders were not "trying to run the small pipes on a big motor".
The build was completed with the supplied small pipes and the first test session proved they were inadequate. After they built the second sidepipe arrangement, the car showed it's true potential on track.
Your builders may NOT "have the exhaust worked out properly", figuring you may not know the difference between 511 and 611HP. They built it as supplied and did not re-engineer the exhaust system to take advantage of the increased power.
I just tried to alert you of that, because your motor is so far beyond (powerwise) what original Coupes had with their original pipes, you may not get the performance you think you're getting.