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Time to upgrade injectors??

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Old 01-26-2017, 12:49 AM
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Jaa
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Default Time to upgrade injectors??

Doing a dod delete with a new cam. Wanting to know if I will have to get the 8.1L injectors. Would like to know before I get it tuned.
comp cam 54-450-11
lobe separation 115
intake center line 111
duration. Intake 260
Exhaust 266
Lift. Valve intake .513
Valve exhaust .520
Lift. Lobe intake .302
Lobe exhaust .306
Basically a stock engine now and don't have any plans of making it a race truck.
Old 01-26-2017, 05:29 AM
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I would say no.

If your truck is flex fuel, the injectors are good up to about 10psi (if boosted). Since you're NA, don't worry about them.
Old 01-26-2017, 05:37 AM
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Jaa
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It is not a flex fuel. So I think that they are a little smaller.
Old 01-26-2017, 07:27 AM
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Originally Posted by Jaa
It is not a flex fuel. So I think that they are a little smaller.
If you're doing a DOD delete, you have a newer truck and I would almost guarantee that you have FF capability.

Either way, you should be fine.
Old 01-26-2017, 08:08 AM
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Jaa
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08 not flex
injector size 25
Old 01-26-2017, 04:37 PM
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I would install flex fuel injectors or get larger ones just to be safe.
Old 01-26-2017, 04:45 PM
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Here's a link for some 30s...

https://www.performancetrucks.net/fo...0681-a-547587/

I have 8.1L truck injectors in my LQ4. Last dyno, still had plenty of injector left.
Old 01-26-2017, 04:54 PM
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ctsv forum, LSA injectors, top hat hight and pigtail adapters from Ebay. under 150$
send to FIC, 250 for flow match to 1kcc



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