202 CFM port pics
| This is the same port that flowed 195 cfm. on 3/15/02 |
| The bowl and seat were opened to cj size in the shop. I know bowl is smaller than if a machine shop had done the work . Proper seat angles are worth 10 to 15 cfm over this engineering and research excersise. Especially at lower lifts. Roof to left of guide was raised about .090". and vane was made smaller and streamlined. Roof is .100" thick on both sides of guide. This hurt flow with the small valve and helped flow with the large valve. Right roof was widened via removal of vane. Poor valve seating inflated .1" lift figures I'm sure. This page is only linked to the forum and not indexed on the site. |
| Flow figures @ 28" water corrected |
| 1 /2 /3 /4 /5 /6 /7 /8 50/94/130/154/172/183/190/195 best on 3-15 51/96/130/153/168/177/183/186 after work above ei lowering left roof etc 50/100/135/156/171/179/185/188 with back cut valve 60/109/138/157/169/177/182/187 tuliped valve 64/116/147/170/185/193/197/202 Cj valve and bowl 63/114/145/165/179/186/191/194 left roof lowered as was originally 62/112/144/168/182/`85/186 floor fill removed |
| Observations: This port is rough and has no valve job to speak of. A properly installed valve and machined seat should easily see 220 cfm |
| 6 |
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