need info on update/backdate for future STS project

[Jeff Lloyd <Jeff@xxxxxxxxxxxxxxxxx>]

I am really intrigued by the SOLO II STS class, I am considering Making my one time Rally project concept into A STS autocross/Pro-solo Gun.. and since it looks like the class is here to stay..

Well a few questions reguarding classing and the 325ix that may become this project..

1. update/backdating is legal in STS so 
a. can I update the Viscous LSD from the IX into       a "plain 2wd 325?"

b. what is the best 325 engine ever (must be a 325 to follow rules) that can be retrofitted into a 325ix
legally (I don't know if I can use a euro oil pan to clear the front driveshaft for a DOHC motor) since to the best of my knowledge a e36 IX was not sold in the US

c. can I update the brakes from a 325 M-tecnic which i think are M3 brakes?

d. is the AWD (a completly viscous coupler system) worth the weight VS. just updating a RWD 325 to viscous... I know the Scoobyrus seem to doo well, but an older system like the IX might not work as well for it's added weight... 

so the 2 options I guess will work best is..

a lightweight E30 body with a e36 325 motor M3 brakes
2wd IX Viscous LSD, and a killer SP suspention

or a AWD IX system with (DOHC if oilpan change is allowed) or a nice E30 2.5/2.7 motor with Update/bd to the limit..

one may be better for Pro solo, but if it keeps me from doing well in "classic" soloII it might not be worth it..

also

can anyone offer me more exact info on all 325's and all the diffrent versions of them..  and what is the "accepted" street prepaired updating scheme, do models not offered in america apply? (if listed on the same line?) how much modification is allowed to facilidate a update, can I create custom motor mounts ect to make a diffrent motor fit?

the STS rules are still early in development so things are not "spelled out" like the other classes

Thanks I will come up with more questions after looking over the pile of parts (that one day might be a car again) this weekend..

Thanks everyone

Jeff Lloyd
'96 BMW Z3 Ultimate tanning machine
'81 VW diesel pickup
'?? pile of E30 parts that to the best of my knoledge is now a 328esx (I rolled it quite a few years ago)

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