1st gen j-spec 12a Turbo questions

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Apr 29, 2002 | 06:30 AM

Adsy01

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ACBron Motorsport

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From: Melbourne Australia

1st gen j-spec 12a Turbo questions

ok guys this only applies to factory (j-spec) 12aT engines...

i want to know what parts are different and/or better than there n/a equivalent...

ive heard that the side housing are nitirded(sp?) though the ports are tiny

, and the the rotor hosings have a better chroming one them....

what about the ecentric shaft?
oil pump and regulator?
i know the12aT rotors are a lower comp, but are the otherwise the same as the n/a ones?
anthing else?????????

Apr 29, 2002 | 11:29 AM

nopistonsforjoe

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From: Riverside and La Jolla, CA

i was wondering...
is the stock 12aT efi or carb? i've heard it is both..mind clearing this up for me...
thanks!

Apr 29, 2002 | 09:07 PM

Directfreak

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From: 3OH5

EFI

Apr 30, 2002 | 12:29 AM

peejay

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From: Cleveland, Ohio, USA

The 12AT was injected. It was the 12A 6-port that was carbed.

Apr 30, 2002 | 04:10 AM

Adsy01

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ACBron Motorsport

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Posts: 608

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From: Melbourne Australia

the 12aT were indeed EFI they ran 2x 800cc injectors in the center plate the throttle body was in the same spot as the carby so i guess some people just assume that it is a carby....