Ford Racing cams

[MAPerformance]

How about a how-to guide when you get those cams in?

You could always take your car to the local performance shop!

Regarding deleting VTC I mentioned it in a post above. When you start making big power and revving past the factory limits the cam gears end up being a limiting point, and even cause failure.

Every big power Subaru I have built I deleted the AVCS system (variable valve timing) because mechanical gears will always be more durable than a moving unit, especially at high RPM. On my last build, a 2008 STI, it had 4 VTC gears, I deleted them all with adjustable cam gears and degreed the motor in. I had the same spool time and made more power down low than I did with the AVCS.

Every car is going to react differently, so when the time comes and we test this out I will share the results. Unfortunately these cams are going to definitely be for mild build cars, I would say <500whp it would be ideal. Unfortunately they aren't nearly aggressive enough to support our big horsepower goals we have set for the future. I'm thinking once these camshafts come in and we install them. The stock camshafts are getting sent out to get blanks made and custom grinds.

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[wildsailor]

* Snip

Every car is going to react differently, so when the time comes and we test this out I will share the results. Unfortunately these cams are going to definitely be for mild build cars, I would say <500whp it would be ideal. Unfortunately they aren't nearly aggressive enough to support our big horsepower goals we have set for the future. I'm thinking once these camshafts come in and we install them. The stock camshafts are getting sent out to get blanks made and custom grinds.

Gosh, what a fun job you have!

In your opinion, what is holding the redline so low on this engine; valve float or piston speed? The direct acting buckets should not have the inertia to float so much unless the spring rates are very low. It does not appear that the valve seats are inserts so there is a possibility there was an OEM worry about recession so the springs may be weaker than expected. On the other hand the cams are belt driven as opposed to chain, correct?

My train of thought is if, in conjunction with your efforts on the larger turbo, the redline could be extended higher. Then, the custom grind cams could be optimized for the higher RPM band and move the HP peak higher in the band.

This would not do anything for daily drivability but it may make a more exciting race performer.

 

[dragonacc]

Gosh, what a fun job you have!

In your opinion, what is holding the redline so low on this engine; valve float or piston speed? The direct acting buckets should not have the inertia to float so much unless the spring rates are very low. It does not appear that the valve seats are inserts so there is a possibility there was an OEM worry about recession so the springs may be weaker than expected. On the other hand the cams are belt driven as opposed to chain, correct?

My train of thought is if, in conjunction with your efforts on the larger turbo, the redline could be extended higher. Then, the custom grind cams could be optimized for the higher RPM band and move the HP peak higher in the band.

This would not do anything for daily drivability but it may make a more exciting race performer.

Cams are chain driven.

 

[MAPerformance]

Gosh, what a fun job you have!

In your opinion, what is holding the redline so low on this engine; valve float or piston speed? The direct acting buckets should not have the inertia to float so much unless the spring rates are very low. It does not appear that the valve seats are inserts so there is a possibility there was an OEM worry about recession so the springs may be weaker than expected. On the other hand the cams are belt driven as opposed to chain, correct?

My train of thought is if, in conjunction with your efforts on the larger turbo, the redline could be extended higher. Then, the custom grind cams could be optimized for the higher RPM band and move the HP peak higher in the band.

This would not do anything for daily drivability but it may make a more exciting race performer.

Unfortunately bucket style heads are not ideal for high revving. The weight of the buckets itself add the to rotational mass in the cylinder head, which promotes valve float. The factory valve springs have only 50lbs seat pressure. To give you an example of how weak that is, I was able to remove the valvesprings by hand instead of using our air-assisted cylinder head press that we have to use on every other cylinder head...ever. With that being said, there is definitely some cylinder pressure bleed-off happening on the stock cylinder head configuration from valve float.

The camshafts are very weak as well and aren't intended to be used in a high revving scenario. The camshafts in mention here aren't that huge of an upgrade but definitely better. I think upgrading the valvetrain with the stock cams is going to show you more gains that installing the camshafts mentioned in this thread on stock valvetrain. If you combine them, that would be the ultimate upgrade.

I have valvesprings already available and going into production for the EBM currently, they are a beehive design with a 95lb seat pressure which will support 9,000rpms if there were ever a camshaft set that could support it.

 

[dragonacc]

I have valvesprings already available and going into production for the EBM currently, they are a beehive design with a 95lb seat pressure which will support 9,000rpms if there were ever a camshaft set that could support it.

If you are going to the trouble of getting custom ground cams done you should get some that will make power to 9000 rpm. I know I'd likely be interested.

 

[MAPerformance]

If you are going to the trouble of getting custom ground cams done you should get some that will make power to 9000 rpm. I know I'd likely be interested.

Well, that would be the idea! Haha.

 

[dragonacc]

Speaking of 9000 rpm... How would the HPFP react to that? I assume there has to be a limit to how fast that thing can spin.

 

[MAPerformance]

Speaking of 9000 rpm... How would the HPFP react to that? I assume there has to be a limit to how fast that thing can spin.

It's probably going to grenade itself.

 

[dragonacc]

It's probably going to grenade itself.

That's sad.

 

[wildsailor]

Cams are chain driven.

I was thinking 1.0L Ecoboost. Thanks for the correction!

 

[wildsailor]

Speaking of 9000 rpm... How would the HPFP react to that? I assume there has to be a limit to how fast that thing can spin.

It's probably going to grenade itself.

The 3.5L EB HPFP in the 2016 GT may be an alternative. We'll have to see what that ends up looking like.

 

[dragonacc]

The 3.5L EB HPFP in the 2016 GT may be an alternative. We'll have to see what that ends up looking like.

Not sure what you are talking about, but the Mustang EB uses the HPFP from the 3.5L F150 EB.

 

[Rogues Gambit]

The 3.5L EB HPFP in the 2016 GT may be an alternative. We'll have to see what that ends up looking like.

We'll definitely have a solution soon enough, this is the Mustang after all

Hell, they're still trying to figure out a solution for the B7 A4's last I checked

 

[DWC_SmOziLLa]

Unfortunately the upcoming Ford Racing Cams for the EcoBoost will NOT work with the factory pistons. Swapping these out will require much more of a commitment then a few hours on the weekend and a tune.

 

[bigspoondude]

Unfortunately the upcoming Ford Racing Cams for the EcoBoost will NOT work with the factory pistons. Swapping these out will require much more of a commitment then a few hours on the weekend and a tune.

Why would they not work with the factory pistons?

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