I was wondering what size of injectors are usually installed on the typical 20B motor? Are we talking about similar injector size?

Where can I read about this??

 

Stock - 550cc primaries and 850cc secondaries if I'm not mistaken. Most swap these out for 850 primaries and something much larger for secondaries, 1350cc or 1600ccs.

 

Stock 20B-REW:
Primary - 550cc/min side feed
Secondary - 550cc/min top feed

Calculator here:
http://www.rceng.com/technical.aspx

If you aren't familiar with all the confusing numbers, just use the following and it will be close enough for government work.
Rotary Engine BSFC = .55 non-turbo, .64 turbo
Maximum Injector Duty Cycle = .80
System Fuel Pressure = 43.5

550/850 is stock on the 13B-REW, not the 20B-REW.

 

sorry EA, but they are 550 top feed for primary and secondary, Ive had four of them...

kenn

 

Those are some pretty funny looking top feeds.

 

Uh, no.

Primaries are side feeds.
Secondary are top feeds.

And, I dunno what you're smoking, but the 20B comes with SIX fuel injectors...


-Ted

 

Back from the dead.

Maybe someone will know, are the 13b-re and 20b primary injectors the same? I thought I saw somewhere that the RE was actually 540cc. They look very similar though.

Thanks
~Tweak