my first turbo car

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951 Blackplanet

New Member
Joined
Apr 20, 2006
Messages
82
just looking over my 87 gn to see where to start.wanna know injector size,and turbo size,here numbers.injector#621020,D1720AA.Turbo#s A/R.63 MI0.can some one decipher these #s.thanks.
 
injectors are 30# stock replacenent tomcos , formerely called green stripes due to the green plastic ring near top but recent ones have light blue ring at top so colors cant be used for ID . the # you posted is what we use now
BTW they are really good injector disc type injector , great for for starting on and mostly stock car

for turbo the stock housing has a removable inlet bell its a TA series turbo , if yours is removable (two nuts hold it on with studs) its a TA housing may be a stock housing . if the inlet bell has a 1/2" vent nipple inlet on the back side then its likely its still a stock turbo, but if not it could be anything from a stock to a TA61 which is also stock appearing and would take measing the wheels to be sure of what it is , with the 30# i would guess its stock as the next size up turbo should run with bigger injectors.
the stock turbo inletbell is slightly larger than the compressor cover is cut for the wheel and you should see a lip edge when looking in at the wheel

if the inlet is part of the housing then its a TE series housing and its not stock and can be almost anything and would require pics and some mesauring wheel size to know
 
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