Stock injectors and fuel pump maxed out with on LT on my 5.3

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04-21-2013, 09:40 PM

#11

kelsey_canard

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Quote:

Originally Posted by 00silvylq4

What size are the stock 01 injectors? I have a 6.0 with 217/223 pacesetter LT's airaid intake system. Last attempted dyno tune injectors where sitting at 118% duty cycles. I already have some nnbs flex fuel injectors, which I think are 36lb, to go in.

01 should be 24.5lb IIRC. I tried to run 24.5lbs on a cam only 6.0 once

I got the same result.

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04-21-2013, 10:04 PM

#12

00silvylq4

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Quote:

Originally Posted by kelsey_canard

01 should be 24.5lb IIRC. I tried to run 24.5lbs on a cam only 6.0 once

I got the same result.

What ya running now?

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04-21-2013, 10:30 PM

#13

kelsey_canard

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Quote:

Originally Posted by 00silvylq4

What ya running now?

regular 8.1 injectors.

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04-21-2013, 10:40 PM

#14

mattjones

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wait so ive got a 99 silvy with a 5.3 and when i put my cam in (tsp 224r) im going to have to upgrade my injectors since i have the smaller ones??

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04-21-2013, 10:44 PM

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kelsey_canard

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Quote:

Originally Posted by mattjones

wait so ive got a 99 silvy with a 5.3 and when i put my cam in (tsp 224r) im going to have to upgrade my injectors since i have the smaller ones??

Yes, you should definitely upgrade them. Ive got some 24.5s in the classifieds section for sale and i'll probably have my 31s for sale here soon.

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04-21-2013, 10:45 PM

#16

Slammed silverado

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Quote:

Originally Posted by mattjones

wait so ive got a 99 silvy with a 5.3 and when i put my cam in (tsp 224r) im going to have to upgrade my injectors since i have the smaller ones??

I would think so

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04-21-2013, 11:11 PM

#17

00silvylq4

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Quote:

Originally Posted by mattjones

wait so ive got a 99 silvy with a 5.3 and when i put my cam in (tsp 224r) im going to have to upgrade my injectors since i have the smaller ones??

yup...more air + more fuel = more power

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04-21-2013, 11:14 PM

#18

Slammed silverado

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Since we are the injectors, has anyone heard of Deatschwerks?? They have a 38 lb injector I'm thinking about getting but would like to kno more on the company

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