Steve
You were asking about suitable engines for this SE5s, well as you may have gathered from my threads I do have a thing for Lasers, British engineering at its very best! But I’m not alone; if you check out the top scale modellers an awful lot of them also use Lasers.
Mick Reeves used a V twin for his 1/3rd scale Sopwith Pup, see this link:
Mick Reeves Models
As for the sound, and I certainly agree with you that it’s very important; once again I don’t think you can beat a Laser V twin, I just wish he made smaller ones that would be suitable for my models. Below is a link to a video made by Giles of his 200 V twin used in his ¼ scale SE5a
YouTube - Laser Engine - 200V
If you have any queries you can always contact Laser Engines, they are a really helpful and friendly lot. Their web address is:
Laser Engines
I’m really looking forwards to the build thread.
Grahame