sprayed99 Posted February 4, 2008 Report Share Posted February 4, 2008 the 8.1L are 42lbs injector. from what others are claiming @ 52psi they are 44lb/hr. not arguing just curious. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 from what others are claiming @ 52psi they are 44lb/hr. not arguing just curious. im not too sure but at stock psi (42.5psi i think) i thought they were 42#. Quote Link to comment Share on other sites More sharing options...
mean05 Posted February 4, 2008 Report Share Posted February 4, 2008 (edited) Hmm i gues the 02 pcm that i tuned for the 8.1 was wrong then...cause it said the flow rate vs. KPA chart said it had 30lb injectors in it...maybe the newer ones come with 42's Edited February 4, 2008 by mean05 (see edit history) Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 IT IS WHAT IT IS... Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 IT IS WHAT IT IS... Yeah the power shuts down pretty early in the run, 4500 rmp, should pull better than that. i put down 281 hp on the same dyno with my current nods Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 Yeah the power shuts down pretty early in the run, 4500 rmp, should pull better than that. i put down 281 hp on the same dyno with my current nods 281 hp @ how many rpm's? are you running upgraded injectors? Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 281 hp @ how many rpm's? are you running upgraded injectors? no they are stock injectors, 6100rpm, the injectors are stock and are at 98% IDC Quote Link to comment Share on other sites More sharing options...
Fast06 Posted February 8, 2008 Report Share Posted February 8, 2008 I HAD A DYNO TUNE SESSION @ ENGINE LOGICS ON SUNDAY AND WAS TOLD THAT MY '07 CLASSIC V-MAX WAS MAXED OUT DUE TO THE INJECTORS BEING @ 113% DUTY CYCLE. I TRUST THEIR WORD BUT WONDER IF ANY OF YOU HAVE HAD THAT PROBLEM. ALSO I WONDER WHAT YOU GUYS HAVE PULLED ON THE DYNO. MY TRUCK IS STOCK OTHER THAN K&N DROP IN FILTER & DUAL MAGNAFLOW MUFFLERS & WENT 247.8 HP & 305.6 FT LBS @ THE WHEELS. I have intake, exhaust, headers, 1.85 rockers, tune. I made 325.6 hp 359.9 tq SAE when I dynoed. I would like to know if my injectors are maxed out. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 8, 2008 Author Report Share Posted February 8, 2008 I have intake, exhaust, headers, 1.85 rockers, tune. I made 325.6 hp 359.9 tq SAE when I dynoed. I would like to know if my injectors are maxed out. Did you do a dyno tune or mail order? When they dynoed your truck you didn't get a print out of what your a/f ratio was? 325 rwhp? Got the sheet? Quote Link to comment Share on other sites More sharing options...
Fast06 Posted February 8, 2008 Report Share Posted February 8, 2008 (edited) I have a mail order tune through pcmforless. In the summer I will go through .justin. . The sheet had no a/f ratio printed on it. I have touble posting the sheet, so I just post the address to the website its posted on. Can someone let me know the best way to post pictures. Thanks. Truck: http://www.halestechnical.com/Michael%20Zeznok.JPG Dyno sheet: http://www.halestechnical.com/Micheal%20Ze...yno%20Chart.JPG Edited February 8, 2008 by Fast06 (see edit history) Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 8, 2008 Report Share Posted February 8, 2008 to post pictures all you need to do is host them somewhere, like photobucket, upload them to the hosting site and then copy the picture link to the silverado forum. hope this helps Quote Link to comment Share on other sites More sharing options...
.justin. Posted February 8, 2008 Report Share Posted February 8, 2008 im not too sure but at stock psi (42.5psi i think) i thought they were 42#. They're rated at 43.82# at 58psi. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 11, 2008 Author Report Share Posted February 11, 2008 They're rated at 43.82# at 58psi. The .justin.... I've been waiting for you to chime in. Can you make a suggestion on the injectors that I need. Part number would be great. If not what do they need to come out of? Will 01-02 Camaro injectors work? Quote Link to comment Share on other sites More sharing options...
.justin. Posted February 11, 2008 Report Share Posted February 11, 2008 The .justin.... I've been waiting for you to chime in. Can you make a suggestion on the injectors that I need. Part number would be great. If not what do they need to come out of? Will 01-02 Camaro injectors work? 01-02 camaro injectors use a different connector and are taller than your current injectors. Direct swap injectors would be 8.1L and 8.1L marine injectors. The marine injectors would be what I would suggest, as they'll be good up to about 450rwhp F/I, over 500rwhp N/A. These are they: http://www.racetronix.com/17113739.html I sold my set for just over $200 when I swapped up to the mototron 60s, others tend to go for around there on PT.net. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 12, 2008 Author Report Share Posted February 12, 2008 01-02 camaro injectors use a different connector and are taller than your current injectors. Direct swap injectors would be 8.1L and 8.1L marine injectors. The marine injectors would be what I would suggest, as they'll be good up to about 450rwhp F/I, over 500rwhp N/A. These are they: http://www.racetronix.com/17113739.htmlI sold my set for just over $200 when I swapped up to the mototron 60s, others tend to go for around there on PT.net. Thanks .justin. I just wish you would have sold them to me for that. Got to pay to play I guess. Quote Link to comment Share on other sites More sharing options...
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