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Mazda Rotary Club

General => General Technical => Topic started by: Jono FD3 on February 21, 2010, 08:31:20 PM

Title: Technical one for you... Volumetric efficiency??
Post by: Jono FD3 on February 21, 2010, 08:31:20 PM
Anyone know what the figure is on the 13B REW??
Title: Technical one for you... Volumetric efficiency??
Post by: Jono FD3 on February 21, 2010, 11:50:52 PM
Sorted now... it\'s near as damb it 90%

Jono
Title: Technical one for you... Volumetric efficiency??
Post by: AtomicRex on February 22, 2010, 08:41:22 AM
VE of rotary engine is more like 130% I believe
Title: Technical one for you... Volumetric efficiency??
Post by: HaywardRotary on February 22, 2010, 08:51:30 AM
Depends on the porting.
Regards
Carl
Title: Technical one for you... Volumetric efficiency??
Post by: Prof on February 22, 2010, 09:18:01 AM
This is an interesting article:
 
http://cp_www.tripod.com/rotary/pg29.htm
 
Seems a stock ported 13B has a VE around 70%, with turbocharging or porting taking it quite a bit higher...
 
I suspect the 13B MSP (Renesis) engines are more efficient that the older 13B lump as well - due to the clever intake porting.
Title: Technical one for you... Volumetric efficiency??
Post by: Jono FD3 on February 22, 2010, 10:58:54 AM
The renesis lump is 106 ;)
The engine is going to be street ported, but calculating on a std port will do for what I need at the moment ;)

Cheers
Jono
Title: Technical one for you... Volumetric efficiency??
Post by: HypoThermia on February 22, 2010, 12:13:12 PM
Quote from: Jono FD3;674136The renesis lump is 106 ;)
The air intake manifold on the renesis includes a small supercharge effect - graphs on page 7 of this SAE paper (http://www.rotarydevelopment.net/RotDev/Docs/2004-01-1790_Rotary.pdf).

Ian.
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