PorKen

I was intrigued by the recent <a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic;f=14;t=005209#000000" target="_blank">topic</a> of individual throttle bodies, but I could not find a decent description of why they give increased performance. Euro M bimmers have these, for example.

I recalled that some motorbikes had slide throttles, which instead of a butterfly a Guiotine blade slides in and out to limit the airflow, and thought this would be even better. I Googled 'slide throttle bodies' and found this <a href="http://www.oriondevelopments.com/product01.html" target="_blank">aussie site</a> among others.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">ST-8 manifolds are eight throttle-body intakes with a separate throttle-body sitting directly over each cylinder. Unlike single and dual throttle-body manifolds, there is no restrictive single intake point and no plenum chamber to fill up before the air can be utilised. Each cylinder gets the amount of air it needs, when it needs it - no delays. This means that an ST-8 can give your engine much smoother acceleration and much faster response time than any single or dual throttle-body manifold is capable of delivering.</font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Yes, this, and any individual system, requires a different engine management system, (Megaspurt?) but this is frickin' sweet (mate):

<img src="http://www.oriondevelopments.com/images/manifold01.jpg" alt=" - " />

<a href="http://www.enginemanagementsystems.com/products.html" target="_blank">Link: More slide throttles</a>