Cams Cams Cams

[AJCurtis]

Gen 3 S550 with headers, cold air, and tuned for E85. What would I expect to see in gains by adding Cams? What brand do you suggest.

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[engineermike]

Just don’t…..no matter what anyone says, a good engine calibration for them just doesn’t exist. The best any tuner has done is masked calibration problems by cheating in the tune.

 

[robvas]

https://www.motortrend.com/how-to/ford-coyote-update-new-stage-3-cams-dyno-592-hp/photos/

 

[DougS550]

Gen 3 S550 with headers, cold air, and tuned for E85. What would I expect to see in gains by adding Cams? What brand do you suggest.

I have not seen any before and after dyno runs showing the added benifit versus cost on aftermarket cams?.

 

[AJCurtis]

https://www.motortrend.com/how-to/ford-coyote-update-new-stage-3-cams-dyno-592-hp/photos/

Yes I saw this article

 

[DougS550]

Yes I saw this article

If possible, I would be interested in FI cams which adds credible added HP to a specific boost level.

 

[Gen3javi]

Comp 433430 have no issues will gain power and put easily 3 car lengths on the car your racing

 

[HKusp]

The stock cams will support 1200whp. That money is better spent elsewhere.

 

[Zrussian13]

Skip cams and save for boost. Money better spent.

 

[tdstuart]

Gen 3 S550 with headers, cold air, and tuned for E85. What would I expect to see in gains by adding Cams? What brand do you suggest.

What are the goals?

I would only do cams if you want to go all out n/a. That means getting a ported cobra jet/high ram too.

Comp stage 2 n/a cams are the smallest I would go for gen3, any smaller and whats the point. If you look on the All Motor Coyotes facebook there is a guy that will make custom cams. I would go with him. I would ask him if its worth it to do lockouts so you can run bigger cams.

But at ~$2k for cams, ~$1,500 for manifold and tb, plus another ~$1.5k for install if your only goal is more power why not just go boost?

 

[tdstuart]

Just don’t…..no matter what anyone says, a good engine calibration for them just doesn’t exist. The best any tuner has done is masked calibration problems by cheating in the tune.

While I disagree about not doing them (Go look at the All Motor Coyote group where they spend an insane amount of money to go fast n/a), Mike is right about how the engine calibration is more of a patch than an exact tune.

These tuning problems will become more apparent as you swap to an aftermarket manifold and bigger tb that is required to help the gains of the cam.

The car has a very complex model to determine airflow. Changing cams changes this model, changing manifolds changes this model, and changing throttle bodies really changes this model. And no tuner will spend hours to recalibrate the model to as good as stock so you have to accept that you may have drivability issues.

 

[WildHorse]

Skip cams and save for boost. Money better spent.

Never understood this concept. If you have to identical FI cars, ecept one has quality aftermarket cams, the cammed FI car will destroy non-cammed FI car.

Anything you do to increase horsepower is always a win/win.

 

[robvas]

Never understood this concept. If you have to identical FI cars, ecept one has quality aftermarket cams, the cammed FI car will destroy non-cammed FI car.

Anything you do to increase horsepower is always a win/win.

Except cams fuck your powerband and driveability up. You're also being harder on the valvetrain components turning more RPM, so you're taking reliability down a few notches. And it may make it harder to tune.

There are cars making 1300-1400whp with the stock camshafts (quite a few have gone 8's and even 7's)

I agree with you in a way, why not just throw a set of cams in it if you're building the motor anyway. But at the same time, why bother with it when you can just turn the boost up 2-3psi and gain the same amount of power?

Is the money better spent on something like upgrading to GT350 heads (or having your heads worked)?

 

[80FoxCoupe]

The stock cams will support 1200whp. That money is better spent elsewhere.

LOL

 

[Zrussian13]

Never understood this concept. If you have to identical FI cars, ecept one has quality aftermarket cams, the cammed FI car will destroy non-cammed FI car.

Anything you do to increase horsepower is always a win/win.

True but hp per $, I'd have cams down the list, well after boost. If I up boost to the point of valve float I'd definitely do cams while I'm in there doing springs. Probably not before that.

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