Reply to "Net and Gross HP"

danieljonesMember

There's an additional complicating factor. Ford's advertising department
had 3 engineering curves to pick from. Prior to the 428 Cobra Jet, Ford
would advertise the 'Engineering A-curve' power. That was the maximum
output you could get of an older engine with looser clearances than a new
one with dynamometer headers. That was the A-power curve. Then there
was the B-Curve, which was the engine with no accessories and the C-curve
which included exhaust system backpressure and all accessories. When Ford
introduced the 428 Cobra Jet, they advertised the B-Curve power rather than
the Engineering A-Curve. The 428CJ was capable of approximately 400 hp
(A-Curve), 325-335 hp (B-Curve), and 310-320 (C-Curve). NHRA and others
immediately factored the ratings for match racing.

Given the NHRA's factoring on the Boss 351, I'd guess that Ford also used
the B-curve rather than the A-curve.

Dan Jones

9/7/078:09 AM

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>

Skip to main content

Membership Required

Remove From Your Block List

Manage Follow Preferences

Block

Please wait...