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injector size for 8-9psi STS kit

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Old Jan 7, 2006 | 10:25 AM
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Default injector size for 8-9psi STS kit

I am in the process of purchasing a STS turbo kit with t-70 and intercooler the only thing not coming with the kit is injectors just out of curiousity what size injectors do I need to feed my ls1. I am looking to run 8-9psi on the car.
Thanks guys.
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Old Jan 7, 2006 | 10:29 AM
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42lb inj would probably suffice your need but do you think that you may want to up the boost even more later?? If so I would go with 60lb inj
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Old Jan 7, 2006 | 10:33 AM
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preston. i have an sts kit on my t/a and i am running 5psi on the street and 8psi on the track with methanol injection. i have 42lbs bosch fuel injectors. with a gt67 turbo. pushing 508rwhp and 548tq @8psi. also my bestfriend is in the process of building, but i think he is going to run a t70. but he is looking to push about 12 psi or better. he is looking of 60-65lbs injectors. just thought i would give ac ouple examples. but did sts have any suggestion ofr your application?
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Old Jan 7, 2006 | 02:59 PM
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From: Rockingham, NC
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Hey guys thanks for the info on the injector sizes. Eventially I plan to up the boost but that will be after I build my engine with a lower compression ratio and forged bottom end, looks like 60lbm injectors are the way to go in that case. just one more question for you guys where is a good place to buy them. thanks
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Old Jan 8, 2006 | 01:24 AM
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Yeah im looking for some 65# injectors going to run 15psi in due time any where good to find them i know billy at trtturbos can get me some but not sure of the price
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Old Jan 8, 2006 | 07:34 AM
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I'd go with 60# injectors as well. No need to have to buy injectors twice, and it is easy to tune with the 60's. bob
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