Cobra Make, Engine: Original ERA 427sc, Powered by Gessford
Posts: 2,678
Not Ranked
Quote:
Originally Posted by madmaxx
I love this combination and it will be my next Cobra. The benefits of modern fuel injection, reliability, driveability and probably pass emission if you had to. Car sounds great, not as throaty as a pushrod engine but very very few would notice. Looks great in the engine compartment. I dont think it can get any better.
Ditto to the above.
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Replica is not a dirty word.
"If you can't be a good example, then you'll just have to be a horrible warning."
Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
Posts: 1,480
Not Ranked
Patrickt I need a favor
Quote:
Originally Posted by SunDude
Here's a nice video with Lance showing how the Coyote-powered MkIII sounds and goes... fabulous!
Patrick, I am back in China and cannot get Utube since its banned, could I ask you A REALLY big favor to work your computer magic and transfer this vid to a vid so that those who cannot get UTube can see and enjoy the moment......? John, AKA, tin-man
Cobra Make, Engine: Kirkham #684, 482FE, Mike Mccluskey build
Posts: 2,520
Not Ranked
the dohc motor from ford is nothing new, im amazed how everyone thinks this is some kind of new technology, my motor puts out 400 to the wheels, fully forged, all aluminum, great mpg, has a unbelievable track record. coyote only races in one class, ford dohc have been dom inating for years.
Last edited by fordracing65; 01-21-2011 at 07:11 PM..
Cobra Make, Engine: Backdraft #880, Ford Racing 392 w/4 - 48IDA Webers, TKO600
Posts: 97
Not Ranked
Quote:
Originally Posted by CobraEd
Its smooth quiet idle is due to the cam. Too bad.
The gross duration on the lobes and the lobe separation angle between the lobes are what gives the lumpy "Cobra like" idle. This is an emissions engine and cannot have that.
.
The 'lumpity-lump' of a high-performance cam comes from the overlap ground into the cam to optimize high RPM performance. Overlap is the amount of time both the intake and exhaust valves are open. At high RPM, it maximizes scavenging of the exhaust and filling the cylinder with the air-fuel mix. At low RPM, excessive overlap creates that 'lumpity-lump' idle we've all come to love. The Coyote has variable cam timing. At low RPM, the cams roll out to reduce overlap and create a smooth idle and manageable power delivery, not to mention an environmentally cleaner exhaust. At higher RPM, the cams roll in, increasing overlap which creates more horsepower. Without the variable cam timing, you would have the power the idle suggests. The beautiful thing about these new motors is with the mass flow and O2 sensors, you will have optimum fuel delivery to maximize efficiency and thus power. Want more power, just add air. The computer does the rest.
Nice explanation, the coyote motor is a no brainer unless you are an old fart trying to relive your youth with the smell of gasoline and chokes I have to get one!!!
Quote:
Originally Posted by digginfool
The 'lumpity-lump' of a high-performance cam comes from the overlap ground into the cam to optimize high RPM performance. Overlap is the amount of time both the intake and exhaust valves are open. At high RPM, it maximizes scavenging of the exhaust and filling the cylinder with the air-fuel mix. At low RPM, excessive overlap creates that 'lumpity-lump' idle we've all come to love. The Coyote has variable cam timing. At low RPM, the cams roll out to reduce overlap and create a smooth idle and manageable power delivery, not to mention an environmentally cleaner exhaust. At higher RPM, the cams roll in, increasing overlap which creates more horsepower. Without the variable cam timing, you would have the power the idle suggests. The beautiful thing about these new motors is with the mass flow and O2 sensors, you will have optimum fuel delivery to maximize efficiency and thus power. Want more power, just add air. The computer does the rest.
Cobra Make, Engine: Kirkham #684, 482FE, Mike Mccluskey build
Posts: 2,520
Not Ranked
Just change the cams, you can make it sound any way you want, Ford builds these motors for daily drivers, its our job to modify to our specs. (Lumpity lump)
Cobra Make, Engine: Backdraft #880, Ford Racing 392 w/4 - 48IDA Webers, TKO600
Posts: 97
Not Ranked
I'd rather add air than mess around with cams and computer programming. I'm sure some company will eventually offer something but look at it this way; Coyote... $6,500.00
Ford Racing Coyote Supercharger w/bigger injectors... $7,500.000
$13,500.00, 650 HP Motor for your Cobra... Priceless!
I have to get one!!!
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