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

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Apr 21, 2013 | 09:40 PM

#11

kelsey_canard

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From: Arkansas

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.

Apr 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?

Apr 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.

Apr 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??

Apr 21, 2013 | 10:44 PM

#15

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.

Apr 21, 2013 | 10:45 PM

#16

Slammed silverado

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From: Stl Missouri

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

Apr 21, 2013 | 11:11 PM

#17

00silvylq4

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From: Lawton, OK

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

Apr 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