Alternative RV-10 Engine Idea….

[Relentless]

Originally Posted by BobTurner

I know you said "about" but it is pretty near impossible to get a 14% (175/153) speed increase out of a 17% (305/260) power increase, unless there are other things (drag reduction, etc) going on. As previously noted the weight cannot be 130 lbs lower with a 40 lb lighter engine. A 6% speed increase would be more in line with the laws of physics. Note the other numbers in the chart suggest that a 11% power increase (260/235) gives a 4% (153/147) speed increase, more in line with the usual "speed varies as the cube root of power" rule.

thank you for the detailed analysis, I'll update my chart and get to work proving it out….The R540 normally aspirated should be around 315 based on our testing and conversion of stock 360 at 210hp…..

[Relentless]

Originally Posted by Aiki_Aviator

What is the Hp WITHOUT supercharger?

Seems like it is 300 WITH Supercharger.

315 is best guess for normally aspirated R540?..

[Relentless]

[majuro15]

Kevin, thanks for the time today to chat on the phone. I really appreciate the info and advice. I look forward to seeing some numbers from RV-10's with your R series engine hung on the front!

[Tassie]

Kevin,

What will be the break-in procedures for the R540? Even without wheel fairings, it might get a bit "exciting" in an RV-10 first flight scenario if there's 315 horses up front that have to be run at 75%...

[BillL]

I still have not seen (or I missed) reports on the specific fuel consumption numbers for the AX50 heads on an 3XX engine.

That was supposed to be a big benefit of the head/cylinder packs. Better cooling, better combustion, better, lean limit, higher Cr, less detonation, and then - - better SFC. That could go a long way in paying for the new technology.

[Palamedes]

Great engine if all this pans out =)

Quick off topic;

Whats the plane in the background of the hero image on their website?; http://www.titanengine.com/rseries/

[johngoodman]

Originally Posted by togaflyer

Will the current RV 10 upper and lower cowling work without modifications to them and what is the expected pricing.

Did you ever get an answer?
John

[Canadian_JOY]

Originally Posted by Palamedes

Great engine if all this pans out =)

Quick off topic;

Whats the plane in the background of the hero image on their website?; http://www.titanengine.com/rseries/

Jason - that airplane is "Relentless", the Reno racer. Note the striking similarity to the name of the Original Poster. Yes, they are connected, very intimately.

[Mike S]

Originally Posted by Palamedes

Whats the plane in the background of the hero image on their website?;

As already stated, it is named Rentless------the model is an Nemesis NXT.

http://en.wikipedia.org/wiki/Sharp_Nemesis_NXT

The original Nemesis was a formula one, Jon Sharpe got tired of winning every race he entered , so he designed the NXT to compete in the new sport category at Reno.