Dark Horse hp vs GT hp

[MustangMitch69]

@MAT1955 pistons are the issue and set the limit for both… not rods.

9/10 too much boost, too tight gap in one of the factory rings… they kiss and send a chunk of ringland up.

Whether it's the pistons or the rods (or both), this is consistent with what an "old timer" told me when I asked his thoughts on supercharging my vert GT. He said it it can be done, and will be done by many, but a factory motor isn't properly engineered to accommodate a supercharger (because that's not what most customers are going to do, and would come at an extra cost) so it would be a matter of time until something breaks. How long... who knows.

He shared that he had one of the really early vert mustangs, which had good horsepower for the time, but the rest of the car wasn't properly designed to accommodate for it and that's why some things fell apart on it.

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[MAT1955]

@Q6543 ..... didn't mention pistons as that is a given. Guess you have never had an engine dropped-off for a rebuild where the rod has gone through the block. The answer to building an engine is to keep all of the components in the same spec range as you move up the HP ladder. That is why the DH's are up-graded..... @MustangMitch69 has put the concept in perspective. We would have customers who wanted to start to up-grade with a build of the upper engine and we wouldn't do it as we knew they'd blow the motor. The weakest link will always be the disaster point. Build evenly or pay a lot later.

 

[Q6543]

@MAT1955 i can recall dozens of coyotes that cracked a piston, broke a ringland etc…

I can barely remember 1 that a rod gave up and windowed the block, unless it was in conjunction with losing a piston.

that was my only point, pistons and ring gaps are the weak point here… not rods..
And the GT and DH share them… the weak point.

 

[agreywolfe]

It's Just ford playing it safe with the GT, they expect the DH to see redline way more than the GT so they beefed it up. That's not to say the GT is under strength though, just look at the stage 1 whipple kit.

ASE certified tech install gets you 800+ HP with a valid warranty for 3/36,000

 

[robvas]

He said it it can be done, and will be done by many, but a factory motor isn't properly engineered to accommodate a supercharger (because that's not what most customers are going to do, and would come at an extra cost) so it would be a matter of time until something breaks. How long... who knows.

Except, it's pretty well proven that you can supercharge a Coyote, keep it at a certain power/timing/boost level, and it will last a long time. Plenty of people with 100k on supercharged engines. Ford warranties the new ones with a blower for 3/36k.

You can blow up a GT500 engine. You can blow up a built Coyote. But if you don't get stupid, a stock Coyote will make good power, safely, for a long time.

Hey, when the Coyote first came out, nobody thought you could supercharge that engine and have it last. It had 11.0:1 compression ratio, the Terminator Cobra only has 8.5:1! It only has tiny weak rods, the Cobra has Manley H beams!

But the computer was more advanced, knock sensors were better, plus you could change the cam timing with the VCT. It worked and since the motor was improved so much you could make the same amount of power with half the boost compared to the old engine!

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