02-09-2020, 09:55 PM | #23 |
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Here are some comparative logs for map 0, map 1 and map 2 that I did a few days ago
Map 0 obviously at stock boos Map 1 at about 20-23 psi Map 2 at about 25 psi + Alll on most updated firmware |
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02-09-2020, 10:33 PM | #25 |
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I’m repeating the obvious, but 5 degrees of timing is destroying your power. Terry should be able to help there. If you have 100 octane Shell or Sunoco nearby, it would be a great test.
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02-09-2020, 10:38 PM | #26 |
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I replied to you in email about this. But just wanted to add here, with the timing being pulled that much, you're likely putting your engine at risk running 93 octane with that much boost. DME is good, but your issue now is with fuel. As far as the car short shifting, it shouldn't matter much. Usually boost falls off near the redline, short shifting a little may be faster.
Also your 0-40 times are on par with my 2.70 runs. All your lost time is 40-60 mph. So the launch, power down low and traction aren't the bottleneck now. 40-60 is slower because your timing is super low which reduces the power.
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Hockeytyme575.00 BMWDriverX365.50 |
02-09-2020, 10:42 PM | #28 |
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Agreed on the timing aspects below--very likely it though your fuel should be good enough for both maps 1 and 2 so I'm still confused. Pursue this with Terry...
Trying another tack: focus on shifts for a second: think about the shifts when you're driving it hard but NOT from a launch, you'll feel a distinct gap in forward propulsion (it's short, less than a half second... but it's obviously there; no DCT afterall)--agreed? When you perform a full-fat Launch Control launch (i.e. the flag comes up saying Launch enabled or whatever the heck it is it says), do the shifts feel the same or does it feel almost like the car magically engages the next gear without disengaging the current one--like it convulses from one to the next with no loss in propulsion? If you don't know what I'm describing in the latter part then we may have identified the problem. |
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02-09-2020, 10:49 PM | #29 |
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Launch control feels like it shoots me forward when it shifts gears .. like this it shifts and the car picks up g's and lunges forward
Maybe describe what your trying to describe a little differently and I'll try and take note next time i drive |
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02-09-2020, 10:55 PM | #30 |
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This gas is really close :
https://www.sunocoracefuels.com/fuel/260-gt There is a station 5 miles away Good? Lol |
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02-09-2020, 11:07 PM | #31 | ||
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DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
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02-09-2020, 11:11 PM | #32 | |
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DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
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02-10-2020, 12:37 AM | #33 | |
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I have nothing else to add I'm afraid. Timing and Terry are your path forward I think. |
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02-10-2020, 03:00 PM | #34 |
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91oct and 3 gallons of E85 i can run no higher than map 2 correct? What about adding say 5 gallons of 100oct to the already mixed 91oct and 3 gallons of E85? Can I use map 3 on that setup or just go straight 100oct?
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02-10-2020, 03:04 PM | #35 |
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I didn't have better results using map3 over map2. But, if it were me I would go straight MS101 or MS109 for anything over map2
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DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
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02-10-2020, 03:19 PM | #36 | |
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JBA87 Holy shit... I just looked at the Map 6 logs you sent me. That is WAY too much boost for pump gas. You are going to be the next person to blow their engine if you run that on pump gas. Boost was in the 26-28 range, touching 30 in a few spots. TBH You may already have some engine damage from that.
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02-10-2020, 03:57 PM | #40 |
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JBA87 Sorry, my bad. I had someone else send me logs around the same time and clicked the wrong file. I saw it said Map 6 on one of them and that you had mentioned map 6 in this thread. Your Map 2 boost is pretty high for Map 2 though. I don't think it's high enough to do engine damage that fast though. I thought you were running close to 30psi on pump gas.
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02-10-2020, 04:00 PM | #41 | |
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I fear for guys playing with JB4. I wish it had a warning when you select maps and said "requires xx amount of octane" JB4 is powerful and a good tool but you really have to use it with caution and reading and comparing logs with the guys at BMS. I attached an old v3 guide but we are on v5. It says 93 is okay for map2 but I wouldn't do it as you can see how much it boosts at times.
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DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
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02-10-2020, 04:31 PM | #42 |
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I feel like Map 2 is still additive even though they say it's absolute. Looking at the actual boost with the ECU requested boost, actual boost is always ECU requested +~5-6psi. It follows every little drop or bump in the ECU requested exactly. If it were really absolute, it should have no correlation with the ECU requested.
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02-10-2020, 04:52 PM | #43 | |
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02-10-2020, 04:53 PM | #44 | |
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DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
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