Dark Horse cam install?

[robvas]

It's not much more than the stock engine made with a cobrajet intake, headers, e85, and tune

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[135Hoser]

that makes sense, but those number still seem unsafe

Why is it unsafe? These motors are reasonably reliable it seems making a bunch more power with forced induction on a high compression motor.

You won't have big torque down low like you do with a positive displacement blower which loves to pretzel rods, and you won't have insane cylinder pressure like you do with boost making almost 200 whp more.

So long as the AFRs stay sane and you aren't going wild with EGTs I don't see why this wouldn't be more reliable than a blower, which is already reasonably safe.

Also Coyote's are reasonably cheap to replace if the motor does die, so that does work in your favour.

 

[Dragster]

Cams were only worth it on an S550 if you had a Cobra Jet manifold and full bolt ons and supporting mods. I had a GT30 manifold and did cams twice (Comp stage 3 cam, then down to stage 1) and revved the engine to 8,000 rpm, and it really wasn’t worth the hassle or cost. The stage 3 cams lost power all the way until 6K rpm, and then only picked up a peak of 11 hp. The stage 1 cams were better for the GT350 manifold as the power was closer to stock in most of the rev range (ie, the car didn’t lose power) and they picked up more on the top end (but still not enough to justify doing them, IMO).

if you want to stay NA, that’s fine, but obviously from a cost to power standpoint a blower is just a much better deal. Regardless, you can’t tune the S650 for cams right now so it doesn’t matter. And OP, cams on these cars don’t sound any different than stock.

 

[roket]

Why is it unsafe? These motors are reasonably reliable it seems making a bunch more power with forced induction on a high compression motor.

You won't have big torque down low like you do with a positive displacement blower which loves to pretzel rods, and you won't have insane cylinder pressure like you do with boost making almost 200 whp more.

So long as the AFRs stay sane and you aren't going wild with EGTs I don't see why this wouldn't be more reliable than a blower, which is already reasonably safe.

Also Coyote's are reasonably cheap to replace if the motor does die, so that does work in your favour.

looking back on what i said, that was nonsense. i think i forgot how bulletproof the Coyote engine is. also, i'm pretty sure i was confusing something. basically, just ignore my previous comments as they're pointless noise. im gonna justify it as "bored with nothing happening at work at 13:00 on Friday, so i'm not really paying attention"

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