Henrik P 0 Posted October 27, 2008 I have now heard that many tuners makes 3 angeled valve seats in there head. This should improve the flow. My questions are? Why does it improve the flow? Do they make the angels one the valve ore just the seat? Just give me all the info you have about this type of tuning Cheers Henrik Share this post Link to post Share on other sites
mattbenselin 0 Posted October 27, 2008 The angles are created in valve seat on the head, they create a smoother radius for the air to flow past into the cylinder, this means more air, theoretically, can get in as the valve is open. This method does not alter the valve themselves. Share this post Link to post Share on other sites
pip470 61 Posted October 27, 2008 does anyone know the angles of the gti 6 head seats please? Phill Share this post Link to post Share on other sites
tony perks 1 Posted October 28, 2008 usually 45 degs for the actual valve seat 30 degs for the top cut, and 75 for thr througt cut. Share this post Link to post Share on other sites
DamirGTI 343 Posted October 28, 2008 (edited) This is interesting read : http://www.diyporting.com/valve_seat_issues.html http://www.diyporting.com/angles.html ...and this : http://www.guy-croft.com/viewtopic.php?f=2&t=334 Visit Guy Croft's website if you're at least a little bit interested in this stuff (hit the search button and you'll find loads of info written by the man himself !) Damir Edited October 28, 2008 by DamirGTI Share this post Link to post Share on other sites
Henrik P 0 Posted October 28, 2008 This is interesting read :http://www.diyporting.com/valve_seat_issues.html http://www.diyporting.com/angles.html ...and this : http://www.guy-croft.com/viewtopic.php?f=2&t=334 Visit Guy Croft's website if you're at least a little bit interested in this stuff (hit the search button and you'll find loads of info written by the man himself !) Damir Thanks Damir. Thats some great links Share this post Link to post Share on other sites
