im going forward with this build, ive got an engine in mind, picking it up this weekend with vg30_s12.

for ease of install, im probably going with carbs to start out, and wire up megasquirt and EFI later.


not gonna go into specifics yet, as the engine isnt in my possesion (yet...) but its a twin T3 draw through setup. ported and polished E88 head, along with a ported n36 manifold.

what i could use now is an expert on the b/c trans. im prepared to swap out the transmission, (as ill probably have to anyway) but i have a few questions.

whats the max ballpark ft lbs that can be pushed through a B/C trans before you start seeing gear soup? (im assuming very limited traction to start)

keep in mind i havent laid everything out yet, but a l series bellhousing will bolt up to a s13 c trans. what i need to know is whats the differences between the s13 c trans and the s12 c trans.


i may be completely talking out of my ass here, but im under the impression that the only differences in the B/C trans are internal (IE, bolt patterns the same, ect) and if the L bellhousing bolts to a C trans, it *SHOULD* bolt to the B trans as well.


will post pics as soon as i get the engine home and begin the teardown.

well goodluck and make sure to post plenty of pics...I was thinkin of doing an l28et in an s12 it would be badass and lighter than the z it came in

so your going twin turbo?

sorry to be a skeptic; but thats going to be nearly impossible on a LHD car; seeing as the exhaust and intake are on the drivers side.

also what makes you want that head/block combo for boost?

i see you mention blow through, do you mean you want to carb it and have a turbo?

im just hoping you do all the homework before you buy all this stuff and then get frustrated.

ill definitely be watching this since im planning on an l28et in my s13

that head/block combo is just what i happened to find. this is what the motor currently has. as far as what STAYS on it, thats yet to be determined.

my ideal is a f54 block, p90a head. worst case scenario, this engine can go into my s30, and the engine from the s30 can go into my s12.

i just stumbled on this engine at a stupid price. i can always part out what i dont end up using to help fund the build.

Sick.