Boardtrack racer 1915

Hallo,
das Video ist tatsächlich für mich beeindruckend gewesen, aber wahrscheinlich aus einem anderen Grund: Was "feuert" da denn direkt aus den Zylinderköpfen?
Sowas ist mir völlig unbekannt, genauso wie die "Schlitze" im Zylinderfuß!

Gruß

Klaus

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EV EV EV Ennie EV: Posts: 106; Joined: Thu 26. Nov 2009, 20:11

Re: Boardtrack racer 1915

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Post by Ennie » Sun 28. Mar 2010, 19:55

EV EV

Hi, die Zylinder mit Löchern am UT sind "ported cylinders", die Löcher dienen dazu einen Teil der Verbrennungsgase am UT los zu werden. Eine zeitgenössische Tuningmaßnahme.

Die Löcher im Zylinderkopf sind meiner Meinung nach einfach ein Auslaß ohne Krümmer. Warum man das so gemacht hat, weiss ich nicht.

You do not have sufficient permission to view this link.

Quelle:Yesterdays.nl

Gruß Jens

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1946 Indian Chief

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EV EV EV ktmsammler EV: Posts: 28; Joined: Sat 6. Feb 2010, 18:46

Re: Boardtrack racer 1915

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EV EV

Post by ktmsammler » Mon 29. Mar 2010, 08:07

EV EV

Hallo Jens,
oder wollte man vielleicht mit den Löchern am Zylinderfuß den Staudruck im Kurbelgehäuse reduzieren?
Um Abgase los zu werden, müßte der Kolben ja schon ins Kurbelgehäuse eintauchen und das angesaugte Gemisch würde dann ja auch noch zusätzlich mit Luft angereichert!?!

Alles in Allem eine interessante Konstruktion!

Gruß

Klaus

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PHP Event	Count	Since	Filename (line)
core.common	1	3.1.0-a1	common.php (171)
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core.session_set_custom_ban	1	3.1.3-RC1	phpbb/session.php (1256)
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core.make_jumpbox_modify_forum_list	1	3.1.10-RC1	includes/functions_content.php (186)
core.make_jumpbox_modify_tpl_ary	18	3.1.10-RC1	includes/functions_content.php (262)
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Count

Since

Filename (line)

core.common

3.1.0-a1

common.php (171)

core.session_ip_after

3.1.10-RC1

phpbb/session.php (303)

core.session_set_custom_ban

3.1.3-RC1

phpbb/session.php (1256)

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3.2.5-RC1

viewtopic.php (277)

core.phpbb_content_visibility_is_visible

3.2.2-RC1

phpbb/content_visibility.php (172)

core.user_setup

3.1.0-a1

phpbb/user.php (232)

core.user_setup_after

3.1.6-RC1

phpbb/user.php (357)

core.viewtopic_before_f_read_check

3.1.3-RC1

viewtopic.php (395)

core.viewtopic_gen_sort_selects_before

3.2.8-RC1

viewtopic.php (485)

core.gen_sort_selects_after

3.1.9-RC1

includes/functions_content.php (143)

core.append_sid

3.1.0-a1

includes/functions.php (1543)

core.viewtopic_highlight_modify

3.1.11-RC1

viewtopic.php (576)

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3.1.9-RC1

viewtopic.php (696)

core.modify_text_for_display_before

3.1.0-a1

includes/functions_content.php (598)

core.text_formatter_s9e_renderer_setup

3.2.0-a1

phpbb/textformatter/s9e/renderer.php (117)

core.text_formatter_s9e_render_before

3.2.0-a1

phpbb/textformatter/s9e/renderer.php (248)

core.text_formatter_s9e_render_after

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phpbb/textformatter/s9e/renderer.php (265)

core.modify_text_for_display_after

3.1.0-a1

includes/functions_content.php (669)

core.generate_forum_nav

3.1.5-RC1

includes/functions_display.php (839)

core.viewtopic_assign_template_vars_before

3.1.0-RC4

viewtopic.php (775)

core.modify_username_string

3.1.0-a1

includes/functions_content.php (1653)

core.bump_topic_allowed_before

3.3.14-RC1

includes/functions_content.php (312)

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3.1.4-RC1

phpbb/content_visibility.php (213)

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viewtopic.php (1246)

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3.1.0-a1

viewtopic.php (1320)

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3.1.0-a1

viewtopic.php (1399)

core.user_format_date_override

3.2.1-RC1

phpbb/user.php (635)

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3.1.6-RC1

includes/functions.php (3780)

core.viewtopic_cache_user_data

3.1.0-a1

viewtopic.php (1514)

core.modify_user_rank

3.1.0-RC4

includes/functions_display.php (1519)

core.get_user_rank_after

3.1.11-RC1

includes/functions_display.php (1568)

core.grab_profile_fields_data

3.1.0-b3

phpbb/profilefields/manager.php (403)

core.viewtopic_modify_post_data

3.1.0-RC3

viewtopic.php (1737)

core.generate_profile_fields_template_data_before

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phpbb/profilefields/manager.php (456)

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3.1.0-b3

phpbb/profilefields/manager.php (530)

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3.1.0-b4

viewtopic.php (1977)

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3.1.0-a1

viewtopic.php (2155)

core.viewtopic_post_row_after

3.1.0-a3

viewtopic.php (2252)

core.viewtopic_modify_page_title

3.1.0-a1

viewtopic.php (2416)

core.page_header

3.1.0-a1

includes/functions.php (3818)

core.update_session_after

3.1.6-RC1

phpbb/session.php (1753)

core.obtain_users_online_string_before_modify

3.1.10-RC1

includes/functions.php (3519)

core.obtain_users_online_string_modify

3.1.4-RC1

includes/functions.php (3579)

core.add_form_key

3.1.0-RC3

includes/functions.php (2072)

core.page_header_after

3.1.0-b3

includes/functions.php (4187)

core.make_jumpbox_modify_forum_list

3.1.10-RC1

includes/functions_content.php (186)

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3.1.10-RC1

includes/functions_content.php (262)

core.page_footer

3.1.0-a1

includes/functions.php (4308)
phpbb/controller/helper.php (159)

core.phpbb_generate_debug_output

3.1.0-RC3

includes/functions.php (4279)

core.twig_environment_render_template_before

3.2.1-RC1

phpbb/template/twig/environment.php (220)

core.twig_environment_render_template_after

3.2.1-RC1

phpbb/template/twig/environment.php (237)

core.page_footer_after

3.1.0-RC5

includes/functions.php (4330)
phpbb/controller/helper.php (182)

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EVBoardtrack racer 1915EV