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EarlyBay Forums
Traders - Services / Group Buys
Head jobs- Gauging interest....
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<blockquote data-quote="jonboylaw" data-source="post: 560883" data-attributes="member: 17621"><p>Still waiting for the heads to arrive, Frank has delayed things a little. In the mean time I have built a flow bench to quantify any gains I get through the valve and head mods.</p><p>I have used my 113 1600 dual ports as a baseline and compared stock to one with modified seats/valves and flowed inlet ports. </p><p>The bench is not calibrated so the absolute figures are not meaningful, however the gains are what I am looking to measure.</p><p></p><p>Here is what I got:</p><p></p><p><img src="http://images.tapatalk-cdn.com/16/01/07/14885c3c00ab8282af55596696362bb0.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>This is flow at 25" of H2O vs valve lift in inches</p><p></p><p>Pretty impressive really.</p><p>Next will be to measure the stock new heads (40mm inlet vs 35.5mm) and take it from there.</p><p></p><p>Below is a photo of my flow bench setup. </p><p>Any questions please ask. </p><p></p><p><img src="http://images.tapatalk-cdn.com/16/01/11/8b3096446eafa3e097eb3b582ec6f510.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p></p><p>-update: 20 cylinder heads arrived today. Will be making tests shortly and have them available in a weeks time. </p><p></p><p>Sent from my GX64 SatCom phone using Tapatalk</p></blockquote><p></p>
[QUOTE="jonboylaw, post: 560883, member: 17621"] Still waiting for the heads to arrive, Frank has delayed things a little. In the mean time I have built a flow bench to quantify any gains I get through the valve and head mods. I have used my 113 1600 dual ports as a baseline and compared stock to one with modified seats/valves and flowed inlet ports. The bench is not calibrated so the absolute figures are not meaningful, however the gains are what I am looking to measure. Here is what I got: [IMG]http://images.tapatalk-cdn.com/16/01/07/14885c3c00ab8282af55596696362bb0.jpg[/IMG] This is flow at 25" of H2O vs valve lift in inches Pretty impressive really. Next will be to measure the stock new heads (40mm inlet vs 35.5mm) and take it from there. Below is a photo of my flow bench setup. Any questions please ask. [IMG]http://images.tapatalk-cdn.com/16/01/11/8b3096446eafa3e097eb3b582ec6f510.jpg[/IMG] -update: 20 cylinder heads arrived today. Will be making tests shortly and have them available in a weeks time. Sent from my GX64 SatCom phone using Tapatalk [/QUOTE]
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Traders - Services / Group Buys
Head jobs- Gauging interest....
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