Talk:Pushrod engine

message: This page has a LOT of incorrect information
I think am image, say a CAD rendering could really improve this article. Does anyone have one that could be used? PhasmatisNox 18:08, 19 March 2007 (UTC)
replies: text: I just spent the day making an animation in Flash, now comes the tricky part: Converting to GIF.   Flash 5 has crap support for any file format.Ahanix1989 01:54, 27 March 2007 (UTC)

text: Ok, fantastic.  I have the SWF done, but I can't get it converted to GIF without it either being huge, or losing a lot of quality (why the hell isn't that damn thing fading out?!)   Here is the SWF, anybody have any suggestions? Ahanix1989 02:02, 27 March 2007 (UTC)
replies: text: I don't know anything about Flash, but if you can make each of the animation frames into individual image files you could use Polyview to convert the frames into an animated GIF image. IJB TA 22:23, 27 March 2007 (UTC)

text: Agreed on most points. I was going to make changes like what you are suggesting but I was waiting to see what happened with the merge between this and the cam-in-block article. I'm not really sure where any incorrect information is in this article though. IJB TA 14:25, 26 January 2007 (UTC)

message: "Custom manufactured or modified engines that utilize oversquare piston travel, and lightweight valvetrains similar to those used in NASCAR racing can rev in excess of 8000 rpm." While this is technically correct, it's a bit of an understatement. NASCAR engines will routinely turn more than 9000 rpm, and at longer tracks such as Pocono they will occasionally see over 10,000. 24.113.18.109 21:57, 1 October 2006 (UTC)
thread_title:  RPM 

message: Overhead valve engines can also be OHC engines, it would seem this term could not be interchangeable with pushrod engine. I have changed OHV to I-Head which is a term that cannot be confused with any other configuration. IJB TA 17:56, 1 November 2006 (UTC)
thread_title:  OHV? 

message: I took out the table at the end of the article: it's obvious someone put a lot of effort into including the table, but it was presented out of context and seemed to me to be nothing more than an attempt to bastion further the positive qualities of the LS7 engine.  If some compelling reason can be provided for including the table and the seemingly random cars that used those engines, then the table can be re-included, but as it appeared to me it was a violation of the NPOV policy, as it was obvious astroturfing for the title engine. --156.143.89.87 01:34, 5 January 2007 (UTC)
replies: text: The LS7 performs very well in its specific use, but this is not an article about the LS7. It is about all pushrod engines and the LS7 does not represent all pushrod engines very accurately, just like the Porsche Carrera GT engine does not represent all OHC engines very accurately. Really the information in that chart shows that some pushrod engines can be competitive with some OHC engines in only one way. Also since there is no sure way to tell in what configuration the engines were in when they were weighed (accessories, wet or dry, etc. as mentioned by Gzuckier above) there is no way to determine the validity of the chart. IJB TA 02:32, 9 February 2007 (UTC)

text: I think the chart would be more useful if it contained more than the two closely related GM pushrod engines.  It would also help to compare engines with similar displacement and aspiration (the BMW turbo 3.0l V8 being too extreme an example for comparison).  I would keep the LS7 and compare it to DOHC 500hp engines like ones in the BMW M5.  I'll see what info I can dig up. Crazym108 21:22, 13 April 2007 (UTC)
replies: text: I edited the chart to remove the three forced induction racing engines, leaving only naturally aspirated production car engines.  I also added the Viper engine and sorted the whole thing by displacement. Crazym108 21:55, 13 April 2007 (UTC)

text: I think the chart looks great as of the revision by 68.35.101.191 Crazym108 00:23, 15 April 2007 (UTC)
replies: text: Agreed. IJB TA 16:19, 15 April 2007 (UTC)
thread_title:  Comparison Table (Removed)