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Old 07-07-2012, 12:03 PM   #197
Can't_C_Me
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I'm feeling your pain brother. I'm running rich at 10 when in 3rd at mid RPM also. I can actually feel the car pulling back the power. But she still running strong enough. I would go to Vengeance Racing and get mine tuned. But you get more flexibility with Trifecta.


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Old 07-07-2012, 12:10 PM   #198
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Chris, get the tune straight with vince and see if it get any better. AFR in the 10's seem too rich. At what RPM are you seeing the 10's by the way?

I didn't even realize you already got the car back and out on the track. Good for you!

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Old 07-07-2012, 12:19 PM   #199
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Chris, get the tune straight with vince and see if it get any better. AFR in the 10's seem too rich. At what RPM are you seeing the 10's by the way?

I didn't even realize you already got the car back and out on the track. Good for you!
Yeah I've had the car back for less than 2 weeks, haha.

AFR in the 10's is VERY rich, Tracy and Vince were saying it should be mid 11's and even 12 is OK. So you figure that, and this thing is pig rich...

TBH I'm not too sure when the really rich 10's kick in. I was focused on watching so many different gauges, AND the road which is why I mounted the camera lol. I reviewed the video again and I'd say around 3,000 rpms. 3rd gear is such a long gear and compared to first and second just feels like a wimp
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Old 07-07-2012, 02:35 PM   #200
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***UPDATE***

OK, so I got an email from Vince just now and reviewed a couple of data logs I took at the drag strip. His exact response "Your fuel system isn’t holding up. 1st is OK, but 2nd is worse, and 3rd is really bad." So it looks like I either need to get the normal pulley from Tracy OR get the high pressure fuel pump. However Vince told me (a few weeks ago) that the tune for the HPFP hasn't been figured out yet and he honestly doesn't even know if it will work.

So it appears to me that we (anyone with an OD pulley) are in a bit of a pickle...
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Old 07-07-2012, 02:40 PM   #201
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***UPDATE***

OK, so I got an email from Vince just now and reviewed a couple of data logs I took at the drag strip. His exact response "Your fuel system isn’t holding up. 1st is OK, but 2nd is worse, and 3rd is really bad." So it looks like I either need to get the normal pulley from Tracy OR get the high pressure fuel pump. However Vince told me (a few weeks ago) that the tune for the HPFP hasn't been figured out yet and he honestly doesn't even know if it will work.

So it appears to me that we (anyone with an OD pulley) are in a bit of a pickle...
Ok.. that makes absolutely NO SENSE... You were running RICH, NOT LEAN! If the HPFP wasn't holding up your car would be going lean!
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Old 07-07-2012, 02:43 PM   #202
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Yeah I've had the car back for less than 2 weeks, haha.

AFR in the 10's is VERY rich, Tracy and Vince were saying it should be mid 11's and even 12 is OK. So you figure that, and this thing is pig rich...

TBH I'm not too sure when the really rich 10's kick in. I was focused on watching so many different gauges, AND the road which is why I mounted the camera lol. I reviewed the video again and I'd say around 3,000 rpms. 3rd gear is such a long gear and compared to first and second just feels like a wimp
Looking at my setup I start in the low 12s and then the AFR works it way down to the upper 11s...

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Old 07-07-2012, 04:14 PM   #203
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Ok.. that makes absolutely NO SENSE... You were running RICH, NOT LEAN! If the HPFP wasn't holding up your car would be going lean!
Hi !

When the HPRailpump gets Pressure deviation more then 20 bar , the ECU will go into LIMP-MODE and close the trottle-body for engine protection !

When you allow the HighPressure System more pressure deviation to keep the ECU out of the limp mode the AFM WILL GO LEAN anyway and not RICH !

To adapt the HPFP is an easy job with only a dozen maps to change , but when the new Railpump piston ist WAY tooo big , then you need to modify the rail pressure control valve , to prevent too high Railpressure at idle with fully open original rail pressure control valve or make the new Railpump piston smaller !!

that effect cant fixed by Software ... only in the hardware !

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Old 07-07-2012, 05:45 PM   #204
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Ok.. that makes absolutely NO SENSE... You were running RICH, NOT LEAN! If the HPFP wasn't holding up your car would be going lean!
Well I don't have the HPFP, I'm saying if there is an issue with the fuel system not keeping up I might need the HPFP. However you bring a good point and I emailed Vince asking how the heck I'm running really rich IF the fuel system isn't keeping up..

This has me very confused
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Old 07-07-2012, 05:52 PM   #205
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You have a HPFP, it is just the STOCK one.
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Old 07-07-2012, 06:28 PM   #206
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You have a HPFP, it is just the STOCK one.
Ok well those of us who still have a Camaro Refer to the aftermarket fuel pump as the HPFP. That's why I was confused.
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Old 07-07-2012, 07:12 PM   #207
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So, are you spraying meth? If so, how much and is it 100%?
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Old 07-07-2012, 08:18 PM   #208
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So, are you spraying meth? If so, how much and is it 100%?
Derrick has a good point. If you spraying you need to go 50/50 or turn it off and run it. This will let you go lean a little more.


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Old 07-07-2012, 09:39 PM   #209
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So, are you spraying meth? If so, how much and is it 100%?
Nope, BUT I am using the super chiller, which gets my IAT temps to mid 60's low 70's
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Old 07-08-2012, 07:22 AM   #210
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Were you measuring the AFR with a sniffer as well as your wideband when you had it on the dyno? If so, did they read close to the same?
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