Shoot.....
I was looking forward to pictures of the Boob job.
And on that "I can wear work clothes to work" BS....I thought you were a Lawyer or some such nonsense - don't you wear a suit to work or sumthin?? what's the BFD??
Then, Marty wrote: "I would like more feedback on the benefits of the 5-speed. Henry is confident that the 4 spd is enough."
Listen to Henry. You won't need it. There is WAY MORE than enough torque to satisfy your every need in most Subaru mills. You don't gain top end with a 5-speed. All you get is closer spacing between the lower gears and an extra cog in there someplace. Where that cog sits depends on what gear ratios you decide on and how they fit the torque curve of your specific engine and whether it has a turbo on it or not.
The gear ratios chosen should keep the engine well within it's torque curve peak for every gear chosen. Fourth (or fifth, if you prefer), most likely will have the same ratio (.89 in the cluster, 3:88 in the differential - that should give you 70-ish mph at 3250 rpm, regardless of engine, so see where the torque curve is on your Subaru engine at 3250 - I'll bet it'll be about centered). If Henry thinks the torque is sufficient to handle more load, he can run a lower numeric ratio in the differential (but I doubt he would do that).
Another thing to consider is that, if you run a Subaru engine AND it's corresponding Subaru transmission, then the engine will end up in your back seat (sorry, that's just how it's designed). Is that what you want??? Or do you want it out back, like Dr. Porsche designed it? THAT decision makes a BIG difference in $$$$$ and engineering hours spent. And speaking of Engineering hours, I personally believe that you can't beat SAS for a Subaru-based Speedster, but then you have that nasty, 3-year-or-so wait to contend with (and it looks like you've already contended with that and it lost).
If you really want a 5-speed, then you have a couple of options with a rear-engine-based car: Porsche 901 or 915. I would go with the 915 with stock gearing for a 3-ish-litre Porsche engine, as the torque curves will be more-or-less the same, but then it's up to Henry if he wants to mate the two together, rather than run something he's more comfortable building with (he's used 915 trannys before).
Again, I would sreiously listen to Henry on this......
Gordon
The Speedstah guy from the Secession State.