I\'ve been lurking here for a while, slowing learning about these roundy-roundy engines, but I thought it was time to say hi.
I\'m Steve. A couple a years ago I bought an mx5. She looked like this:
88k on the clock, a whole 88hp at the wheels... Either way I loved the drive and roof down experience and realistically it was 100 times better than any of the \'classic\' british roadsters I\'d been to test drive.
Very soon I joined an mx5 forum and started to get tempted into performance modifications.....
Thats how she stands now. 200+ hp from the standard engine, turboed with different cams and megasquirt.
Anyway, meandering back towards rotaryness..... I\'ve always lied the idea of a 7. I love the lines of an FD and to me one of the most appealing things is the concept of rotary power. It seems to hold many similarities with two strokes, and I adore my two stroke motorbike. I had a Ducait 748 for a while, which was a work of art, but was blown away by the riding experience of a 20 year old knackered mismatched rgv250. I\'ve now done a complete rebuild on her mechanically. Crank, top end, gearbox, all suspension bearings, all brakes, the list goes on. Still havent started on body work.....
So yeh rotary.... So I started reading more and more about rotary engines and I really like the idea. I was soooooo close to going out and buying an FD a few months ago, but there are just too many draw backs for me and the way I use my car. The biggest draw back is the lack of soft top. You cant beat a nice summers evening with a lady in the passenger seat and the roof down.... I know I could get an FC vert, but they just don\'t do it for me.
Having decided I couldn\'t quite go for an FD, I\'ve decided I\'d like to do a rotary swap into my mx5. I\'ve been doing lots of reading on the internet and I\'ve found masses of information. Its not an easy swap, infact is easier to drop an ls1 v8 from a corvette in than the 13b, but I like a challenge.
One thing to my advantage is that I\'d like to try n/a for a while, I\'ve enjoyed having turbo power delivery for the last year but I\'d like to experience the pure revvy feeling of high tuned n/a. I very much like the idea of throttle bodies and quite an aggressive port and hopefully to end up near the same power as my current set-up. That said I\'m not very power focused, more experience and feel focused.
If I start with an n/a 13b from a FC there is one big advantage over any other rotary. The FC n/a gearbox is basically the same as an mx5 gearbox. By using parts from both I can use the FC bell housing and bolt upto the block easy yet retain all the mx5 mounting points, the mx5 prop and rear end.
I will need heavy modifications to the front subframe, or possibly to buy a posh tubular one from the states, to clear the 13b sump. I\'m gonna need custom engine mounts. I\'m gonna need a fully custom exhaust. I\'m gonna need to organise some engine management, I plan to use megasquirt.
I\'ve picked up a dead 13b, with good gearbox from a friend to use as template for subframes and stuff, and this week I\'ve started to sell of my turbo bits to raise some funds, so its project go! I\'ll try to keep this updated.