What motor should we use? This will define our firewall to some extent.
My preference is to keep that rather open, while using direct fully stressed mounting for stiffness. That doesn't say much, let's get some propositions.
What do you guys think of using a mazda r20b with bespoke end housing to fit the Judd 4.0L pattern? Using f1-style pegs from the firewall.
I took a rather superficial look
on what kind of engines different manufacturers have on offer for the LMP2 class. I'm a big fan of rotary engines, but that approach would presently mean some "development work" of our own since it seems Mazda has developed a straight four cyl. 2 litre turbocharged one for 2007 (MZR-R). But why not.
Other candidates (for further research):
1- Acura has its own LMP2 spec engine. Doesn't seem likely it will be very available, though, as they're just introducing it with specific partners.
2- AER has two choices that might work: P07I4 and P32N (Note: Any specific designations might not be entirely correctly spelled. Do your own checking.)
3- Judd XV675
4- Mader HMR V8, powers the Dome le Mans LMP2 project. Seems pretty rare, even for an LMP2 engine.
5- Mazda MZR-R, as said, but I guess pretty much the same deal with availability as is the case with Acura. New project, company out to make a point ... engines available later, if ever.
6- Mecachrome apparently also has an LMP2 engine on offer. Not entirely sure who is currently using it, or intending to do so, though.
7- Porsche has a couple of chassis and engines in ALMS LMP2. Apparently. Don't know, but I would imagine the racing engines of such a renowned manufacturer aren't available "over the counter".
8- Radical Powertec RPD Macroblock V8, meant for thir own project, don't know if they would part with it.
9- Zytec 2ZG408
Cosworth, I gather, has no applicable LMP2 engine. Despite this, Nicholson McLaren seems to have a Cosworth XB Indycar engine evolution (rebuilt?)that is LMP2 compatible. Don't know if those are currently put to use in that capacity anywhere. WR has used Peugeot engines until recently, don't know if those are available any more.
On the face of it, the AERs, Judds and Zytecs would seem like the most realistic options. (I am supposing this would be a privateer effort, and not a manufacturer supported operation?) But as said, my research has been superficial (and thus most likely incomplete even when it comes to ALL possible engine suppliers). I suggest you also consult the LMP2 2007 tech.regs in more depth than I have thus far done on the issue of engines.
AER, Judd and Zytec feature highly on the "le Mans proper" entry list, so I guess one could decide on worse options than those to power an LMP2 project.
