Big Slice of Reality Pie., 2056 D-jet Dyno run |
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Big Slice of Reality Pie., 2056 D-jet Dyno run |
Olympic 914 |
May 6 2021, 08:25 AM
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#1
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Group: Members Posts: 1,680 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
Just got back from having the teener run on a Dyno.
Good and not as good as I expected. Was hoping for at least 100 Hp, didn't make it. This run was on a Mustang Dyno, allegedly a Dynojet Dyno reads from 12~15% higher. First the good. Runs were extremely consistent. the three runs printed pretty much right on top of each other. Torque was way up there above 95 tq from 3000 to 4500. with no real dips. HP numbers were very consistent with a nice smooth line from 2000 to over 4500 Now the bad Max HP was only read at 88 Hp and max torque was 100. If I add the 12-15% it comes to 100 Hp. But it is what it is. Build is 2056 D-jet, Heads by HAM RS+, 8.6 comp. Raby 9590 cam, SS HEs with Triad muffler. I Have adjusted the MPS to what seems to run best for this car. This car runs great and I just wanted to know what it was putting out, Not really planning to try to tune it for more power. Reliability is the key. and I am so far happy with that. Dyno sheet added (Date/time is wrong, 5/06/21 8:35am) |
JamesM |
May 6 2021, 10:00 AM
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#2
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Senior Member Group: Members Posts: 1,922 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
Were they monitoring your AFRs during the pulls?
Like others here I have to suspect accurate fueling may be an issue. Its pretty amazing how far off from ideal the mixture on these cars can be and still have them run decently. PMB has been seeing dyno numbers over 100HP on stock 2.0L motors just from the conversion to modern EFI (utilizing stock d-jet intakes) I would expect you should be seeing at least that with your motor once properly dialed in. |
Olympic 914 |
May 6 2021, 11:32 AM
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#3
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Group: Members Posts: 1,680 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
Were they monitoring your AFRs during the pulls? Like others here I have to suspect accurate fueling may be an issue. Its pretty amazing how far off from ideal the mixture on these cars can be and still have them run decently. Did not run a probe up the pipe, but the operator did monitor the AFR on my wide band AFR. He said it was in the md- high 11s at WOT. So it looks like I could dial in the Full Load stop on the MPS a couple points. Don't really know how much of a difference that would make though. I am running single springs on the HAM RS+ heads, wonder if its starting to float the valves above 4500 Normal driving around AFR runs in the 12 ~ 14 range depending a lot on throttle position. I don't want to lean it out too much. |
JamesM |
May 6 2021, 10:47 PM
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#4
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Senior Member Group: Members Posts: 1,922 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
He said it was in the md- high 11s at WOT. So it looks like I could dial in the Full Load stop on the MPS a couple points. Don't really know how much of a difference that would make though. I am running single springs on the HAM RS+ heads, wonder if its starting to float the valves above 4500 If you got your WOT mixture in the mid-high 12s (12.5-12.8) range you might find some of your missing ponys. If you like how its running though... who cares |
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