Cam removal in an ERA/FE

[blykins]

There is a category for both manifolds with the same carb.

So with the Performer RPM, 632 hp and 592 tq. With the Victor, 650 and 594 with the same 1000 cfm carburetor.

However, look at the average horsepower and torque.

Performer RPM - 521 hp and 552 torque.

Victor - 513 hp and 538 torque.

Now, which do you think would pose a better situation in a car that spends most of its time around 2500-3000 rpm?

At 3000 rpm, the Victor is making 284 hp and 497 lb-ft, where the Performer is making 305 hp and 533 lb-ft.

Another thing that the dyno does not show is throttle response....

[lippy]

Thanks Dan! The Performer RPM peaks at far lower revs. 3000 or so. The Victor is in the 5000's, which is what I want. It just doesn't need to be 6600, which is what I have now.

Edit: Brent corrected me. The Performer appears to be better up to about 6k

[DanEC]

Originally Posted by blykins

There is a category for both manifolds with the same carb.

So with the Performer RPM, 632 hp and 592 tq. With the Victor, 650 and 594 with the same 1000 cfm carburetor.

However, look at the average horsepower and torque.

Performer RPM - 521 hp and 552 torque.

Victor - 513 hp and 538 torque.

Now, which do you think would pose a better situation in a car that spends most of its time around 2500-3000 rpm?

At 3000 rpm, the Victor is making 284 hp and 497 lb-ft, where the Performer is making 305 hp and 533 lb-ft.

Another thing that the dyno does not show is throttle response....

Brent - what's your opinion from your experience, of which manifold would work best based on what Lippy is trying to accomplish? I don't have a dog in this hunt but it's an interesting subject. Most people are looking for more power, more rpm, etc instead of trying to pull it back a little.

[blykins]

I think Lippy is wanting a "hybrid": a mixture of something that is agile down low and still makes some higher rpm hp.

In all reality, I think a Performer RPM with a 1" Super Sucker would probably meet his needs fully.

His intake has been ported every way from Sunday and is designed for a 490 inch engine that will make hp to 7000 rpm. It's big. In my mind, a Performer RPM would at least match (if not excel) the current Victor's performance up through the rpms he has in mind, but have much better throttle response while driving at cruising speed.

[patrickt]

Originally Posted by blykins

I think Lippy is wanting a "hybrid": a mixture of something that is agile down low and still makes some higher rpm hp.

And what are you doing to his heads, that were, presumably, pretty robust to begin with.

[blykins]

Maintenance.

[patrickt]

Originally Posted by blykins

Maintenance.

... and what would that entail?