hi all. Since i'm in australia, i was wondering what suggestions u people can give me with regards to my 12at. I"m taking it to the rotorshop tomorrow to get my computer fitted and tuned and to have fuel pump and surge tank fitted. what combinations would u people suggest to get the most power and torque from the little stock port 12at.

my own suggestion is this: S5 turbo with T04 front cover. S4 inlet manifold, 2 x 12at injectors, 2 x 13bt injectors, MT4 computer, turbosmart 2 stage boost controller, s4 intercooler (front mounted) 2" piping.

with correct tuning, this setup will give over 200rear wheel kilowatts, and i have examples of it also.

looking forward to seeing your suggestions

later

 

setup sounds like it'll work a treat. might want to get a bigger intercooler if you can. ones out of the 80's turbo volvos are just wider than the radiator and fit great. can get em for like $30 bucks at junk yards here. ask your shop and see what they have to say about it
post pics when you're done with it. i'd like to see more of your surge tank and efi setup like the mounting of the s4 manifold


you been to http://www.ausrotary.com yet?

 

yeah of course. i'm a post ***** on there. though i like to come to this forum also to hear different suggestions and a differnt view point, then to the "australian" way.

 

sounds good so far, but ditch the IC, get a better built unit, and I suggest more fuel, bigger injectors

 

I agree with all of it, but like Mike-P-28 said, go with a better IC. The s4 IC's are restricive on even stock s4 turbos running anything higher than stock boost. The 12at injectors were like 800cc, so they should be good for the setup you speak of (with the 550cc 13BT ones that is), but any higher than 1 bar or so, and I'd be looking to replace the 550's with something bigger, like 720cc's or better yet another set of 12at injectors.

 

Without searching I thing the 12AT injectors were 680cc, one of the largest production injectors ever used. Woohoo.

 

id do at least 4 X 850 , and thats kinda limiting the fuel supply, that turbo will probally do >15psi , id do at least 4x1000cc