RAYRAY25 Posted February 4, 2008 Report Share Posted February 4, 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. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 (edited) yes my 06' injectors are maxed out as well, rivierakid (jeremy) are too. . . . .. oh what kind of dyno was it on? Edited February 4, 2008 by 12'SROCK (see edit history) Quote Link to comment Share on other sites More sharing options...
Krambo Posted February 4, 2008 Report Share Posted February 4, 2008 (edited) So what ELSE has been done to the truck? If you maxed your injectors by having a drop-in and some mufflers, I would be suprised. I am sure someone else will chime in but there may be something we are missing here. Did the dyno guys mess with the tune? Your power number is a bit low as well (really depends on the dyno, weather conditions as well as truck set-up). Did you pull in 3rd?,...converter locked? Those 2 alone will bump your numbers up quite a bit. Does chevy really let the trucks go with injectors being that close to max??? Edited February 4, 2008 by Krambo (see edit history) Quote Link to comment Share on other sites More sharing options...
thomp62301 Posted February 4, 2008 Report Share Posted February 4, 2008 My injectors are anywhere 95 to 105% at WOT. I've been told by a few local tuners that gm vehicles are normally high. I'm personally not happy with where mine are at. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 yes my 06' injectors are maxed out as well, rivierakid (jeremy) are too. . . . .. oh what kind of dyno was it on? IT WAS ON A DYNO DYNAMICS DYNO IN HOUSTON, TX. IT WAS ABOUT 70 DEGREES & THE HUMIDITY WAS NEAR 100% SO IT WAS NOT A GOOD DAY FOR BIG #'s. MY EXHAUST IS THE NEW 3" IN/OUT MAGNAFLOWS W/ A 4" CASE SO THEY FLOW PRETTY GOOD BUT WITH THAT AND A K&N ONLY MAXED OUT INJECTORS. WHAT DO I NEED TO GO WITH? 30 LB/HR IS WHAT WAS SUGGESTED. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 IT WAS ON A DYNO DYNAMICS DYNO IN HOUSTON, TX. IT WAS ABOUT 70 DEGREES & THE HUMIDITY WAS NEAR 100% SO IT WAS NOT A GOOD DAY FOR BIG #'s. MY EXHAUST IS THE NEW 3" IN/OUT MAGNAFLOWS W/ A 4" CASE SO THEY FLOW PRETTY GOOD BUT WITH THAT AND A K&N ONLY MAXED OUT INJECTORS. WHAT DO I NEED TO GO WITH? 30 LB/HR IS WHAT WAS SUGGESTED. can you please turn off the CAP, thanks, what are your future improivements/mods? did you get a dyno graph printed? Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 can you please turn off the CAP, thanks, what are your future improivements/mods? did you get a dyno graph printed? Got the graph printed with before and after numbers. I plan on now getting injectors (30 lb/hr?), long tube headers, cat. delete, Volant CAI, servos & shift kit for the tranny, and way down the road a mild cam (220 or so). Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 Got the graph printed with before and after numbers. I plan on now getting injectors (30 lb/hr?), long tube headers, cat. delete, Volant CAI, servos & shift kit for the tranny, and way down the road a mild cam (220 or so). can you post up the graph? Quote Link to comment Share on other sites More sharing options...
brobradh77 Posted February 4, 2008 Report Share Posted February 4, 2008 if your planing on the cam and etc...IMO you might as well get 42# injectors. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 can you post up the graph? I'll try...I'm new here. Is this better (no caps). Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 I'll try...I'm new here. Is this better (no caps). LOL. . . .yeah if you save the image as a jpeg then you can load it onto the site Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 Custom Dyno Dynamics Tune with EFI Live, *Special Thanks To Reynaldo And Justin*, I seen this in your sig. and was just wondering what did you pull stock? Quote Link to comment Share on other sites More sharing options...
mean05 Posted February 4, 2008 Report Share Posted February 4, 2008 well i maxed out mine when i did my cam...i am putting LS2 33lb injectors in....you can run the 8.1 30lb injectors without changing the plugs...i am hitting anywhere from 130-140% inj duty cycle....the stock ones don't last that long Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted February 4, 2008 Report Share Posted February 4, 2008 well i maxed out mine when i did my cam...i am putting LS2 33lb injectors in....you can run the 8.1 30lb injectors without changing the plugs...i am hitting anywhere from 130-140% inj duty cycle....the stock ones don't last that long the 8.1L are 42lbs injector. Quote Link to comment Share on other sites More sharing options...
RAYRAY25 Posted February 4, 2008 Author Report Share Posted February 4, 2008 well i maxed out mine when i did my cam...i am putting LS2 33lb injectors in....you can run the 8.1 30lb injectors without changing the plugs...i am hitting anywhere from 130-140% inj duty cycle....the stock ones don't last that long I GUESS I MUST HAVE TONS OF CRAP IN THE GAS I'VE BEEN RUNNING. I ONLY GOT 36K MILES, THEY WEAR OUT THAT FAST? I'VE BEEN TOLD 29.5 LB/HR FROM AN 01-02 CAMARO WILL WORK ALSO. Quote Link to comment Share on other sites More sharing options...
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