Koshin wrote:i thought about a rear mounted boosted 1340cc Busa motor.
I did some prelim measuring, its gonna be tight for sure. A stock SR radiator and a slim man will fit fine. Lots of work to get it in there (cutting), and youre right about the motor having to be taken out for nearly everything. Oil filter relocator is key. Im not planning on ever pulling the motor once its in. Ill do everything prior to the swap. I have also thought of a 13B just becasue of space. The body/suspension is first anyways so I have time to decide on exactly what I want to do before the time comes for that step. Any suggestions are welcome for the Healey as well.
For competitive racing, they work great in the classes they're in, but in order to maintain that you cannot swap motors. The moment you go to a motor from a different make, you're eliminating that car from being competitive as your classifications will be all messed up. This said, if you were planning on using the car for motorsports, I'd keep the motor it has and work from there. My shop I keep my cars in is all British Leyland folk, so I can ping them for ideas on class building if you want.
Now, if your endgame is not motorsports at all and this is just a build for whatever reasons, I'd really look at that vertical clearance you have. Height will be the killer as it's not deep at all under that bonnet. Also, being an SR fan, you're very familiar with how oil starvation is a problem with them, check to see how much room below your motor mount you have for your oil pan (especially if you want to have the car slammed). To minimize room taken up, your build might be better off being an NA build, perhaps a Duratec like folks are doing with Lotus 7's or a 4AG (I'd build up a red top instead of going blacktop like I have). I know it doesn't sound exotic or cool and perhaps a little boring, but it'd still go like stink and you'd have a lot more room and a much simpler motor for maintenance reasons.
The cars weigh nothing and with that much HP you have planned and such a little contact patch offered, it just seems too much to be even practical. Dont get me wrong, I'm not trying to rain on your parade, I'm just thinking about it from an engineering and maintenance standpoint.