This area is exclusively for questions and Info on membership, benefits, etc. - all other posts or threads will be moved or deleted as applicable. Please read the pinned notice(s) at the top of the forum before starting a new thread.
Forum for links to all external selling websites, such as eBay or similar. Note: WSCC cannot be held responsible for the content of other sites. Buyer / Seller beware of standard Internet buying issues.
Welcome and good choice to go Westfield from bike - it's what I did after 30+ years of hooning on two wheels and don't regret it. I also wanted a build, so definitely know where you are coming from.
I originally wanted a BEC - something like a Busa or 1000cc Blade engine would have suited - but for various reasons I ended up building a 2.0 Zetec engined car. This puts out a smidge under 185bhp on throttle bodies and is an absolute hoot (especially when mated to a decent ratio gearbox).
In a recent thread (will post a link later when I get a mo) the engine choice topic was discussed at length - and really budget vs power vs use are the deciding factors.
Many people argue (and I tend to agree) that for a road going car 180-ish bhp is pretty 'optimal' as it's difficult to safely use any more on public roads and yet still gives you a real sharp car. Of course this is very subjective and many others can't live without the huge kick in the rear of a big boosted/tuned engine on the odd bit of road you can try and use it - so each to their own (popcorn required for the debate as always)
But £20k is a healthy build budget, but just shy of what it might cost for a fully new Sport 250 build if that tickled your fancy.
You might be able to do a 1600 EcoBoost - but bear in mind the big cost of the ECU and mapping needs to be done by someone who really knows them (I believe) - that will depend on your location too.
You will do a Zetec engined build with all new parts for under £20k - but bear in mind if you end up with a hunger for power, then the Zetec isn't the most cost effective engine to tune. Also note that the 'usual' gearbox will be one with horrid ratios, so allow £2k for a decent one (less the cost of the one on offer)
The s2000 is a cracking engine and well suited to our cars - but it is very heavy, so the added power does get offset a little and as mentioned, prices are steep, so you may struggle to keep under budget. If you can afford it though - the noise as it comes onto the cam is lovely!
The Duratec HE engine is a good option, it should do 190bhp with throttle bodies as standard and is easier to tune than the Zetec if you need more later. Engines can be bought new too. £20k is about right I think.
The 'budget' option is the Mazda - and I only say budget because the engines are cheap, plentiful and available. In standard trim they don't put out a great deal, but they are very easy to boost and thus deliver way more BHP per £ than most other options available. It can be a budget build by going the full SDV (single donor vehicle) route which means you save a lot on the parts used and get the 'age related' plate - but nothing stopping you getting a full 'mega' chassis and fitting a used fully recon engine to get a new plate if you want one. IVA it without the turbo, then fit that later for sh**s n giggles. Should be within the £20k here including the turbo later.
There's also bike engines - but as you don't mention this I'll leave it for now.