Hi everyone, my first post here after years of watching
I've finally decided to build my own race car after many years of racing saloon cars etc. I have always wanted a historic racing sports car of the 70's and after some decision making I'm putting together drawings etc for the Duckhams LM that raced in '72.
It was designed by Gordon Murray for Alain de Cadenet and used Brabham suspension and a Ford DFV engine.
My build will be using 1" and 1.5" square tubing with bonded and riveted aluminium panels for strength and to give that monocoque appearence and I'm using Miata uprights and possibly driveshafts.
My main quandry is what engine to put in so hopefully you can help me decide. The car will be raced and it will probably be in an endurance type class where races are typically 4hours in duration.
So here is the big decision...
1. Bike engine from a R1/GSXR superbike either linked via chain or driveshaft to a Miata diff.....pros: lightweight, powerfull and not too complex to install. sounds great and has sequential shift. Cons: lack of torque, questions over whether it would last races of 4 hours long etc.
2. V8 coupled to a Audi 016 transmission, either using a Ford 302 or Lexus 1UZ (very cheap where I am)....pros: its a V8 so power and torque will be mindblowing cons: weight, the complexity of putting it all together and I'm worried that it would just be like taking a canon to a knife fight!
3. 4 cylinder engine mated to an Audi 016 engine. Using either a Ford Duratec, Toyote 4-AGE or a Honda K20....pros: good power, easier to squeeze into a small chassis and not too complex. Cons: it still needs to be put into the chassis and mated to the transmission and probably not much more powerful than a superbike engine without more mods.
Help would be appreciated!
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