engine choice for new build

[minimutly]

I've been impressed by the standard of workmanship on self built trikes on this forum. One thing I don't understand is the draw towards reliant engines. Yes, they are light, simple, cheap, and normally come with a suitable back axle, but in terms of output per kilo, revability, spares?, there are surely better choices out there?
I have a number of 1.4 k series 16valvers, a transverse gearbox would work with some engineering. It would be short, pokey and light. Do trikes need cats if fitted with post 92 engines?
Are there others?
Huw

[steven brock]

I found using the reliant a good choice as the gear lever is very close to the engine making a compact power plant, light weight and basic to play with, I think trikes look great with an engine up front also mimicking a motorbike in ways. How much power do you need/want?

[Olds]

Engine and transmission is totally up to the builder. On this forum we have, various motorcycle engine ones, VW air-cooled, V8 rover (steve brock) one of the guys has a mustang V8.
It all depends on you.
The Reliant engine, box and rear axle are a natural due to the compact dimensions and light weight. I'm getting on a bit but I can still remove and fit the engine and box complete without using the crane. Fitting a heavy engine up front means using purpose built forks.
Transverse engines from fwd vehicles can be used but gear linkage is difficult. Having said that there are a number of trikes using A series automatics, usually due to disability, an automatic being a requirement. The gear linkage not being such a problem on auto's.