what kinda car is it going into?
I made this thread in the camry forum - with a bunch of help from people on mr2oc.com
http://www.toyotanation.com/forum/t105924.html
I am pretty sure of the following
-3sgte oil pan does not work - just tap your existing 5s for oil return
- where are you going to get a manifold for that gt35R? If you need a custom one made -check out the site for the shop i work at and shoot us an e-mail...
www.speed-source.net
- e153 axels will be really fine with 300whp - i believe the mr2 guys run them up to around 500hp
- what are your plans on the standalone? were you thinking of an EMS? because that woudl be a pretty tall order on a 5s...
It would really help to know the car for this project - but if you are going into a celica/mr2/camry the 3sgte might be a better route - in terms of finding EMS solutions - internals for the motor - and potential down the road... I mean a built 5s is going to be very much on par with a good 3sgte setup, but if you want those kind of number right away - and want to go more in the future and have some extra cash, 3s is really a great motor
At speed source - we have lots of expirence in these kind of swaps and forced induction setups, so don't be afraid to call!