has anyone made a v5 model engine?

[gipetto]

Don't ask me to do it lol, i don't have a lathe. I was looking at driving4answers video   it gives all the figures you need, such as the degrees between each bank of cylinders, and how to offset the middle piston of 3 on the crankshaft for primary balancing. I saw the thread about the v3 engine, but they use balance shafts, so it's an imperfect design, not like the v5.
<a href="https://www.youtube.com/watch?v=XjwTPY_fwKM" target="_blank">http://www.youtube.com/watch?v=XjwTPY_fwKM</a>

[Alston]

I had a Ford many years ago with a 2 Litre V4 engine. That had a balance shaft in it. It was quite a poplar engine for a time as it was very compact for a 2 Litre. I’ve always fancied building a V4 vacuum engine I saw once but never got round to it.

[gipetto]

there were a few v4, not many though. the wisconsin v4 gets mentioned a lot as it was a good success in its time, no build flaws and superb reliability. maybe i would try a stirling version of the v5 if i have the energy. i'd just like to hear one run, they're so rare since honda has the patent.

[john mills]

there was a v4 ford transit van engine  i have ground crank shafts and reconditioned a few .
john

[Admiral_dk]

Honda's RC211 V5 was a Masterpiece  and Geniusly Inspiring   

So they changed the RuleBook in MotoGP after a few years, to stop it, and give the Competition a change .... (high praise from a Suzuki man).

As far as I know - it has never been replicated in any wich way ...!

Per         

[Roger B]

Volkswagen produced a narrow angle V5, the VR5:

https://en.wikipedia.org/wiki/VR5_engine

[gipetto]

i've seen driving4answers' videos mention the vr5. it's something of a lemon and vw abandoned it. it's of no great interest, though the vr6 was a roaring success.

[Roger B]

I would tend to disagree with that. The VR5 had a ten year lifespan and was used when cars were slightly smaller than today so it allowed transverse installation. It also sounds quite nice.

[gipetto]

maybe vw were able to fix the balance issues with the vr5 then.
I found a script which simulates hondas rc211v here
https://github.com/GearheadLydia/Engine-Sim-Engines/blob/main/GearheadLydia/Honda_RC211V.mr
it runs just fine in the free version of engine simulator in wine on linux.
it sounds so strange to hear it run, sort of like a cross between a kohler twin and the audi inline 5 cylinder engines. i bet it would be awesome in a road car.

[Admiral_dk]

Sorry Roger - but I didn't realize that VW made a VR5 ....

Though to be more precise - Honda's RC211 V5 was a true V5 and in perfect ballance.

Per