Cosworth supercharger?

[nomisesor]

After reading the EVO article on the Litchfield suspension and Cosworth SC package for the Mazda MX-5 (EVO April 09) I was looking on the web and noted that some fora said that the MX-5 2 litre engine is the same as the Duratec. Is this right? If so there's an alternative to an internally modified 2 litre N/A...

DOI. I enjoyed the compressor whine when I had a JRSC'd CTR, but am currently an MPV driver - will get an enjoyable car again when family commitments allow. Don't have the skill for ~500hp/tonne though!

[.Adam.]

Both Caterham and Westfield have run Duratec engined cars with a Supercharger, so it has been done.

Here you go, a couple of links:

Caterham X330

Omex Supercharged Westie

Edited by .Adam. on Sunday 29th March 21:19

[nomisesor]

Interesting - a lot of cooling in the OMEX setup! The Cosworth site shows an intercooler, which was missing from the standard JSRC / K20A setup, though not an issue at the fairly low level of boost mine was set to.

[k80rum]

I'm planning to go the FI route next year. I have a spare Duratec 2.0 and new Rotrex waiting to go in the car. Thanks for the Omex link; it's good to read some positive feedback on the Westfield install (and there's a short clip on Youtube of it on the track which is quite interesting)

I'm working with Raceline on my install. They put together the supercharged Caterham x330 and learnt quite a bit from it. The plan is to use a modified WRC inlet plenum on DTH-TBs; the x330 and Omex cars both use a single TB on the plenum which considerably affected the low-down throttle response. The complex bit for me is going to be fitting the cooling into my series 3 chassis. The x330 was in a CSR chassis. I don't know how the Westfield bay size compares but it certainly looks bigger in the photos. The good news is that I know the supercharger fits fine with the block installed. It's just the pipework and radiators that will be the challenge.

I'm also using a Quaife sequential box like the Omex and Caterham cars. It's the only thing that'll cope with the power and torque at a half-reasonable price.. I'll no doubt take some flak for it but I've also fitted a Racelogic TC system to help with the extra torque when it's greasy out. It's extremely adjustable and I'd rather have something that I can gradually dial out than be caught out.

[Steve-B]

FWIW you might want to look up James Miles who posts on BC as he's in West Sussex and his Super Seven has had a variety of SC's and a Turbo on his Cossie with great results over the years.

One year when he upgrade to the TC he added nitrous, and following him on a Targa-Liege rallye in Belgium was blowing flames out for the overrun @ night, which was fab to see. The TC+Nitrous if I recall correctly was IRO 400Bhp....

[k80rum]

Thanks Steve, I wasn't aware of that. I'll drop James a line; I found a contact address in one of his old Blatchat posts. He could have some valuable advice, seeing as how he's been through it all before.. )

All the best,
Darren