INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

TVS1900 5.3L injector size

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Old Jul 17, 2009 | 11:00 PM
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Default TVS1900 5.3L injector size

Just wondering if anyone knows the size of injectors that comes with the TVS 1900 5.3L kit? Any help would be most appreciated.
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Old Jul 17, 2009 | 11:12 PM
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flex-trucks are rated at 32lbs'
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Old Jul 17, 2009 | 11:26 PM
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Hmm mines an 03 non flex. Seems my truck is running 45 lb injectors since after entering this size into hp tuners the truck is runnin good.
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Old Jul 17, 2009 | 11:35 PM
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The old 112 kits came with 42# marine injectors if I remember right. It may have been 44# but it was one or the other.
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Old Jul 17, 2009 | 11:40 PM
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the truck is a 2003, you should have the 42 lb delphi injectors..

Last edited by BLACK AZABACHE; Jul 18, 2009 at 12:02 AM.
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Old Jul 17, 2009 | 11:42 PM
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Originally Posted by BLACK AZABACHE
What year is the truck?
I'm going to flat out guess and say it's a 2003....
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Old Jul 17, 2009 | 11:42 PM
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the pink injectors? If I recall correctly they are ~50lbs at our fuel pressures.
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Old Jul 18, 2009 | 04:15 AM
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Well now I'm thinking maybe they are 32lbs and my truck is maxing out the injectors at anything over 5000 rpms (I made 373 hp and 477 ft lbs at 4500 rpms). Gonna see about getting a bigger injector so I can make some real power.
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Old Jul 18, 2009 | 08:15 AM
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If the install is the one in your avatar I see a few issues already. PM me some pics of the install please. Who tuned it? Same shop?
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Old Jul 18, 2009 | 09:27 AM
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If they're pink, they are 48lb bosch injectors I've been told.

Brian, let us in on what you spot that may be an issue, I looked and can't spot the problem.
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