Brock's Performance Forum : Bore throttle bodies or not https://forums.brocksperformance.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Mon, 05 Oct 2026 13:34:12 +0000 Tue, 08 Oct 2019 11:05:30 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.01 360 https://forums.brocksperformance.com/RSS_post_feed.asp?TID=2611 <![CDATA[Brock's Performance Forum]]> https://forums.brocksperformance.com/forum_images/web_wiz_forums_black.png https://forums.brocksperformance.com/ <![CDATA[Bore throttle bodies or not : Frederick,The gains are really...]]> https://forums.brocksperformance.com/forum_posts.asp?TID=2611&PID=10800&title=bore-throttle-bodies-or-not#10800 Author: Brock
Subject: 2611
Posted: October/08/2019 at 11:05am

Frederick,

The gains are really dependent upon the engine. For example, 47mm TB's on a stock-2-brock configuration RWHP... the same TB's on a big motor were worth around 7 RWHP.

Hope this helps,

Brock


]]> Tue, 08 Oct 2019 11:05:30 +0000 https://forums.brocksperformance.com/forum_posts.asp?TID=2611&PID=10800&title=bore-throttle-bodies-or-not#10800 <![CDATA[Bore throttle bodies or not : I was reading good things about...]]> https://forums.brocksperformance.com/forum_posts.asp?TID=2611&PID=10799&title=bore-throttle-bodies-or-not#10799 Author: Frederick
Subject: 2611
Posted: October/08/2019 at 9:55am

I was reading good things about bored throttle bodies. I am thinking to bore my 44 throttles to 47. Do you have any experience/records on throttle mods? Performance gains, ET gains, etc.

Bored throttles will give me a better air flow, but air velocity will suffer...how important is velocity vs flow?
]]> Tue, 08 Oct 2019 09:55:14 +0000 https://forums.brocksperformance.com/forum_posts.asp?TID=2611&PID=10799&title=bore-throttle-bodies-or-not#10799