im building a 12a with street port and bridge port, with a 50mm weber style efi throttle and a garett tO4 ..haltech e6k ,87 13b tranny ..my question like how many psi you'll think i can run on my car..im using 2*550cc primary fuel injectors and 1100cc for secondary

 

keep er at 15ish to be safe

 

I am with bcty, limit yourself to 15 psi for JUST RACING (on the track of coarse (cough (bs) cough) and about 10 or around there for normal day driving.

 

Do you need a bridgeport with that turbo?

 

woah hold up there... an efi throttle body? links? pics? price? specs?

 

Do you have an intercooler?

 

I would keep it down to about 7psi without an intercooler and 10psi with one. remember you are using high compression rotors. Hitman on his website gives some good advice on the subject.

Are you using a 13b housing for the injector bungs?

 

TWM

 

i was looking through that site; will that FI setup for the dcoe style carb work on our 12a's???

 

dont forget about Injection Perfection

 

...but they are in Austrailia, TWM is in California!!

 

im using a conquest starion intercooler , a racing beat weber 48mm intake manifold and a twm weber style 50mm throttle....im also using a 87 TII crank trigger and coils....

 

hmm... looking at the prices, i think ill be sticking with a carb untill i finish college and get a real job.

 

I riced oot going efi as about $3500 in parts and $600 in labor, plus the cost of the engine work rebuilding, poeting etc. There in $Aus but US prices were about the same.