Re: Super Sniper install
[Re: AndyF]
#2509721
06/17/18 08:07 PM
06/17/18 08:07 PM
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Joined: Dec 2013
Posts: 4,687 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,687
Wichita
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I've been out for a few drives with the data logger turned on. It is interesting to get back to the shop and then look at the log on the computer and see how the AFR responds to the throttle position. I can watch the fuel pump pressure drop after I hit the throttle and then see it come back up over time. The coolant temp gets up to 180 and then drops a bit when the thermostat opens. Seeing all of this stuff sure helps to sort out any issues. That's awesome. Hopefully, some day, I can put all of that on my hotrod!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: Super Sniper install
[Re: AndyF]
#2509743
06/17/18 09:45 PM
06/17/18 09:45 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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The data logger is built into the Sniper so you get data logging and EFI for $1000.
Last edited by AndyF; 06/17/18 09:45 PM.
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Re: Super Sniper install
[Re: AndyF]
#2509929
06/18/18 12:12 PM
06/18/18 12:12 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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Here is a picture of one of the data logging screens that is built into the Sniper EFI. If you are really interested in tuning engines this is a fast way to see what is going on. I think EFI gives a person a good chance to really learn tuning since you can change things so quickly and see exactly what happens.
Last edited by AndyF; 06/18/18 12:12 PM.
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Re: Super Sniper install
[Re: AndyF]
#2510033
06/18/18 03:35 PM
06/18/18 03:35 PM
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Joined: Sep 2007
Posts: 1,893 Spahn Ranch
RMCHRGR
top fuel
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top fuel
Joined: Sep 2007
Posts: 1,893
Spahn Ranch
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Andy do you think would there be any discernible difference in data between a manual trans and an automatic?
'71 Duster '72 Challenger '17 Ram 1500
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Re: Super Sniper install
[Re: RMCHRGR]
#2510177
06/18/18 10:06 PM
06/18/18 10:06 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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Andy do you think would there be any discernible difference in data between a manual trans and an automatic? I can't think why it would matter. If you hook up a driveshaft rpm sensor you could watch converter slip on the data logger.
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Re: Super Sniper install
[Re: davenc]
#2510783
06/20/18 01:08 PM
06/20/18 01:08 PM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Andy,
Are you able to assess whether the Super Sniper on a dual plane is susceptible to more distribution issues than carb? There have been comments that TBI and DP are not a good match, I suspect based on at least that Engine Masters episode. Not sure about the intake part, but I have noticed on the FiTech form where some people have had injectors that were not flowing the same. A few of the problems were related to debris plugging the injectors, and leaking injector "O"-rings. After I plumb the fuel system, I connect the fuel supply line to the return line where they would normally connect to the fuel rail, and then run the EFI pump for a minute to make sure any debris in the lines is flushed back to the fuel tank. Last time I did this, I used one of the cheap Summit filters with the -6 AN connectors on each end and the small disc screen filter in it. This way i was able to inspect the screen filter to see if any junk was in the supply line (which there was a small piece of rubber hose.) This is the filter I used to "loop" the supply and return lines. I had the filter from my old carbed truck. https://www.summitracing.com/parts/sum-230101/overview/I would not use the filter above in EFI application, and there is not much filter area in the screen. This is a link to the replacement screen filter if you want to see what it looks like. https://www.summitracing.com/parts/sum-230110
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Re: Super Sniper install
[Re: AndyF]
#2510833
06/20/18 02:29 PM
06/20/18 02:29 PM
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Joined: Jan 2003
Posts: 1,938 Sonora CA
Mopar_Rich
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,938
Sonora CA
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NO TBI EFI system will like a dual plane manifold. Dual planes were designed to generate a "signal" for a carb. TBI EFI wants to inject into an open plenum. If you must use a dual plane manifold then cut the divider out and add at least a 1" open spacer.
Last edited by Mopar_Rich; 06/20/18 06:11 PM.
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