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Injectors with TA48

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camaro75racer

New Member
Joined
Jan 12, 2005
Messages
236
Ok, i just bought a TA48 off a board member and awaiting arrival. I am yet to change over to 86/87 ecu and have not bought injectors to match turbo. Would I hurt anything to put the bigger turbo on with stock ecu and injectors if i kept the boost under 10psi? Im new at this stuff so any info appreciated. Thanks
 
I am no expert but believe there is “more to it than just boost pressure”.
The air flow and mass at the same 10 PSI will increase with the larger turbo and the fuel table(s) will most likely be out of whack for the same boost pressure. Be interesting to see what the experts say.
 
Jerrly is right, advertised cfm of a turbo is at a given cfm i think it is like 14 psi or something around there. Nonetheless you are going from a 390 cfm to approx double with the 48 so you will be shoving twice as much air and no more fuel which will create a lean cond. I would say you would need a chip, you may want to do a search to see if your stock maf will read enough grams of air, you may need a translator and a new maf, but i am not sure. Go to gnttype.org and look at there table on turbos and see what injectors they say you will need.
 
ta33c turbo

He said that turbo has 700cfm, than that turbo is a ta33 not a ta48.
 
that turbo if i remember is an early ta49 i wich flows a little more than a ta33. I ran my ta33 at 20 pounds with ported heads and intake with stock inj and chip, you just need a scan tool , a pump , adj reg and the fuel but still if you had a pump and reg i would see no reason not to run at least 13-14#

but yes to run that turbo to its max you will need at least 38 # injectors
 
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