Does not having enough back pressue on an NA motor ( I.e. Mid pipe removed so exhaust exiting right out of the headers) burn up th valves?
1995 GT::::Diffusing the Situationエキサイティングカーレーシングチーム!march2010 COTM:6GCfeature2014:january2015-2016-2018 COTM
no it wont burn the valves, too tight clearance burns them
2001 Celica GT-S Turbo1997 Supra TT 6speed1997 Celica 3MZ/1MZ swap1990 Celica All-Trac
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
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QUOTE (Bitter @ Mar 23, 2011 - 7:31 PM)

I'm studying for a Mechanical Engineering degree with hopes of diving into performance auto parts design. These were the most informative articles I've read in a WHILE.
taking too long to mod since '09June '12 COTM'95 AT200
1995 GT::::Diffusing the Situationエキサイティングカーレーシングチーム!march2010 COTM:6GCfeature2014:january2015-2016-2018 COTM
http://forum.concours.org/index.php?topic=45090 **** gets real here. I'm sure there are whole books on the topic.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E