| RHP Re in"Car"nation High Performance |
| pg 4 |
| Final notes and pics for the D3 exhaust port |
| Approximate port shape after porting |
| The measurements in this pic are critical for the D3 ports to acheive the 200 cfm @ .600" lift goal. Bear in mind that decking can change the 1.51" spec so the measurement from thermactor bump to crest is more reliable. This style of port does not benefit from floor filling from the flow perspective. It does however reduce port turbulence. |
| In all honesty these castings when worked well are a good choice for a stroker truck combo where compression ratio is an issue. With max flow of 365/200+ with standard port entry and exits they will work with any dual plane intake excepting the cj port stealth I also feel that for the "under" 6,000 RPM street stroker these casting are quite suitable. If you need more RPM the ported D0VEs are a better choice because the D0VE exhaust port is less turbulent for a given flow than the D3 is. |