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1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
1981 El Camino, 5.3 LSX carb, msd 6010
2011 2SS
www.redline-motorsports.net
1-954-703-5560
2006 ZO6 895/866 with APS TT
2010 SSRS Camaro HTR-900TT (798/801)
2011 HTR-850R Camaro
2012 ZL1 Auto (10.33@135 MPH) Video Here!
According to the guy that re-sizes them all that needs to be changed is the IFR table.
42 bosch modified from 24's
In the video, the spray patterns are very similar.
Why would they act differently (besides flow) if they are the same internally? (offsets)
512k RoadRunner Firmware 12.14R
FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
LC-1 WBO2
_________________________________________________
www.redline-motorsports.net
1-954-703-5560
2006 ZO6 895/866 with APS TT
2010 SSRS Camaro HTR-900TT (798/801)
2011 HTR-850R Camaro
2012 ZL1 Auto (10.33@135 MPH) Video Here!
00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.
The thing that everyone forgets is that the injector value tables in the software are specific to the characteristics of a given injector. There is more then a IFR table that tells the PCM how it needs to control that injector to keep AFR's in line. A few may not need to be altered in this case since it is a stock winding but the way the fuel leaves the injector is an important attribute in the calculation.
You may need to falsify your VE table or MAF to get the fuel in line but now all you have done is misrepresented the air model of the engine. Tuning is all about being able to tell the PCM EXACTLY how much air is entering the motor at a given condition. If this is done properly, you would be surprised how much fudging is NOT needed with many other tables to make a good running engine. This air modeling takes into consideration that the injector values are correct for that injector.
I know for a fact that changing the orifice size changes the spray pattern and more importantly the "short pulse" time in ms. from stock. There is a table for that in the software.
Howard
www.redline-motorsports.net
1-954-703-5560
2006 ZO6 895/866 with APS TT
2010 SSRS Camaro HTR-900TT (798/801)
2011 HTR-850R Camaro
2012 ZL1 Auto (10.33@135 MPH) Video Here!
1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
1981 El Camino, 5.3 LSX carb, msd 6010
2011 2SS
B4005 in the program??
1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
1981 El Camino, 5.3 LSX carb, msd 6010
2011 2SS
Here's some facts that maybe will help us all understand whats going on. First of all if you take the Bosch 3 injector and take the discharge plate off of all sizes from 24-42 you will find that the injector itself including coil are identical. Meaning If I put the different size injectors on a flow bench without discharge plates, the injectors all flow identical. There is no difference in any of these injectors as a valve. Therefore all Bosch does is make one injector for their EV6 series and puts different size holes in the plate. From a manufacturing standpoint this would be most cost effective for them. What this means to me is that being all the same injector except for color, I can do the same thing. We duplicate the hole diameter in all the different sizes, flow test and match them. To us, this is no different than Bosch doing it at the factory as far as performance etc. Us and many shops have been "modifying" injectors for years. We just happen to market it. I will prepare some videos in the next couple of weeks showing a modified injector flowing next to its original counterpart on the flow bench. This way you will see at various pulse widths the injector flowing in real time. Then make your own decision. Also with custom stuff we can give you an injector that is exactly the flow you need. In other words if you need a 56.5 lb injector at 4 bar I can give you that. I can also make 2 in the same set 58 for the two back cylinders that tend to have higher EGT's than the other 6. There are many shops and turbo kit builders using modified injectors with their kits. You probably have bought some but don't even know it. I also experimented with a few race shops using a modified original injector with out touching anything but the IFR table and slopping the injector the way we want. The result was a few more HP over a aftermarket injector with a tendency to have much better idle characteristics. If any of the shops are on line here your comments are very welcome, good or bad.
thanks