Dry Tuning guys please look
Dry Tuning guys please look Here is a 50 Dry Shot on a C5
Chart is 3000 RPM Start through 3000 RPM end (yes I learned how to filter today...
)
Showing the ranges of each PID through the filter.
Here is my question, during the highlighted part above the Injector DC was over 100%, what makes the DC exceed 100% (am I logging the cause?)? I understand the MAF see's more O2 and commands the injectors to add more fuel. But I am trying so see the corrolation in the graph...
Also I don't really under stand why the 106% is not in the initial hit of nitrous or in the upper RPM's, and why it is in the middle of the nitrous run?
Chart is 3000 RPM Start through 3000 RPM end (yes I learned how to filter today...
)Showing the ranges of each PID through the filter.
Here is my question, during the highlighted part above the Injector DC was over 100%, what makes the DC exceed 100% (am I logging the cause?)? I understand the MAF see's more O2 and commands the injectors to add more fuel. But I am trying so see the corrolation in the graph...
Also I don't really under stand why the 106% is not in the initial hit of nitrous or in the upper RPM's, and why it is in the middle of the nitrous run?
I will look and see, trying to get a feel for EFI Scan.
Able to do the PIDs, Chart and Scale, Filter, make new dashes.
Have not dove into the tables yet. Looking like thats next!
That PE tables makes sense though I'll head off in that direction and read up some more.
Able to do the PIDs, Chart and Scale, Filter, make new dashes.
Have not dove into the tables yet. Looking like thats next!
That PE tables makes sense though
I'll head off in that direction and read up some more. You have run out of injector, that's all. Past static (100%) it's just telling you at your highest demand you are out of room. This is the reason you went so lean on your 75 dry shot, and the reason most think the dry will be lean. Now I make these ascertions without disecting your EFI graphs, as these are the first I have seen of EFi, and don't feel up to overloading my noodle at this time.
Robert
Robert
The AFR on the 50 is rather nice despite the maxed out injectors...
4822-5400 is where they are maxed out, DC goes to about 91% through 59XX
The 75 is ugly...
Looks like I need the Tuning software next (only have Scan) and then swap out injectors...42 lb matched injectors what I need?
Looked into PE but I don't think EFIScan will let me look at the table, guessing I need EFITune to get into that. Got a little confused on VE and PE, but I think I understand the diff now.
Based on maxing out @ 50 Dry with the 26 lb injectors, I can see why Wet is the way to go, at least for us poor bastards stuck with the stock 26's anyway. Damn glad I got Dave's Plate for a Wet Shot.
4822-5400 is where they are maxed out, DC goes to about 91% through 59XX
The 75 is ugly...
Looks like I need the Tuning software next (only have Scan) and then swap out injectors...42 lb matched injectors what I need?
Looked into PE but I don't think EFIScan will let me look at the table, guessing I need EFITune to get into that. Got a little confused on VE and PE, but I think I understand the diff now.
Based on maxing out @ 50 Dry with the 26 lb injectors, I can see why Wet is the way to go, at least for us poor bastards stuck with the stock 26's anyway. Damn glad I got Dave's Plate for a Wet Shot.
Last edited by Beer99C5; Aug 20, 2006 at 01:14 AM.
A set of 37s or 42s should be fine. We did a dual stage (dry/wet) on a '99 last week. Bolt on car, no internal work. Started with a 75 shot and the injectors maxed out, leaner then I'd like to see A/F. Swaped in a set of 37s and presto, nice A/F where it should be. Maybe it wasn't so much of nozzle placement issues as an injectors being maxed out?
Matt
Matt
PE is 14.7 stioc divded by a multiplier which equals your new wot a/f. Here's an example from my own pe vs rpm, which is just a grid of rpms every few hundred rpm, at 4800 (my torque peak) I have a multiplier of 1.270 for an effective a/f of 11.52. Prior to this peak I run 11.7 from my pe enable rpm of 2800rpm. Enable should be set at least at a min a tad below launch rpm or convertor to ensure power enrichment is activated before spraying.
Well you can think of the poor bastards this way. The cost of a dry and the injectors together equals or is less than the plate kit. You'ed never have to worry about the swollen plunger issue, the intake hood removal, burning a hole in your piston when the fuel noid sticks shut and a miriad of other scenerios. I had a n2o noid acting up last night at the track. Worked, didn't work, sputtered then finally froze shut. No problems no issues in the damage department. However, I may not have been able to say that with a wet hit and the bog launch that would have resulted.
Robert
Well you can think of the poor bastards this way. The cost of a dry and the injectors together equals or is less than the plate kit. You'ed never have to worry about the swollen plunger issue, the intake hood removal, burning a hole in your piston when the fuel noid sticks shut and a miriad of other scenerios. I had a n2o noid acting up last night at the track. Worked, didn't work, sputtered then finally froze shut. No problems no issues in the damage department. However, I may not have been able to say that with a wet hit and the bog launch that would have resulted.
Robert
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Matt I was on your site last night eying those 37's 
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Originally Posted by Matt@HSW
A set of 37s or 42s should be fine. We did a dual stage (dry/wet) on a '99 last week. Bolt on car, no internal work. Started with a 75 shot and the injectors maxed out, leaner then I'd like to see A/F. Swaped in a set of 37s and presto, nice A/F where it should be. Maybe it wasn't so much of nozzle placement issues as an injectors being maxed out?
Matt
Matt
Robert