Dwayne,

I’m putting a N/A 20B in a Lancair ES, so I’ll attempt to answer your questions.  My engine has a mild street port, so I’m expecting 275-300hp.  Al G. had his N/A 20B dyno’d at 275hp, if memory serves me correctly.  So, that should be a conservative number. 

 

Advantages of a turbo… more hp at all altitudes.  Quieter exhaust, in fact you will likely not need a muffler if you use a turbo.  This offsets some of the additional weight penalty that comes with a turbo.

 

Disadvantages of a turbo… more complexity (tubo, intercooler, additional plumbing), more likely to detonate, higher fuel burn, to name a few.  Also, you will be a bit of a trail blazer when it comes to picking which turbo to use.  The only other turbo 20B that I’m aware is Tom Parkes in AZ.    

 

My feeling on the turbo issue to go with a peripheral-port instead.  PP is simpler, lighter, easier to fabricate a manifold, etc.

 

No, Renesis parts won’t work.  One of the 20B’s side housings in unique to the 20B.  This part is only available for the 20B.  

 

Good luck,

Mark S.

 

 

 

 

Greetings all,

 

First time posting here so I’ve got a couple of newby questions.

 

1)       Does anyone know what HP to expect out of a 20B?

2)       Can someone explain the advantages / disadvantages to adding turbo to a 20B?

3)       Can a 3 rotor engine be built using Renesis components?

 

Feel free to answer any and all and thanks very much for your time!

 

Dwayne