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JB4. I would be curious to see logs to determine what is happening with your car. My IC pumps failure would have been impossible to know without logging. I was running 10.9-11.0 1/4 mile but the IATs were very high. The minute I got the pumps working properly I ran 10.6-10.7 that same day. All they did was hook the car into XENTRY and found the issue quick. I guess air got into my system and pumps were way down on voltage.
i’m starting to sound like the brokest most cheap frugal ****er on the forum but $800+ all in for a JB4 for OBD-II logging is expensive
we’ve all heard this before but:
i’m gonna do some logging with my $15 OBD-II -> USB device
can you send me some example jb4 logs you did? i’ll track back what PIDs I need to log
took my car to the dealer because i thought there was a cpc_ng flash recall, they told me "your car is status R, we can't even look at it", so i took it upon myself to get latest numbers in xentry
CPC or no CPC, that's... **** poor performance. The worst part is, I can repeat it!!!!
Honestly, I do not think it is the tune's fault or anything like that. My car is noticeably faster tuned than stock. My car *feels* faster than 11.6s quarter mile but... apparently it isn't? lol
I also ran a 9.04s 60-130 which is *3* seconds slower than an F90 M5 with boltons + tune + E30. ****ing embarrassing. Literally the same level of performance from a 2013 stock M5 (which you can buy used for $40k easily) and even then it's a slow run.
I couldn't launch because that piece of **** race start kept giving me error messages so I just mashed it. 3.6s-4.25s seems to be my 0-60 range, which is ****ing terrible lol
DA reads 1253ft and it was 75º out. The car was getting noticably slower pull after pull and it did that like... exhaust flap backpressure thing (which I'm still not sure isn't just straight up knock lol) once where it pulls all power mid-run.
I have no doubt this would be a 12s car without a tune, which is ****ing hilarious when magazines say this car runs 11.1s stock...
I wish I could say "I suck, I'm the driver" but I literally just put the thing in Race mode, floored it, and went down a straight line...
Have you got this sorted yet? I’m going to get my car ready this weekend and try to hit 10.5. New plugs, new filters, fill up my WMI, and will use some race fuel. Weather is so cool car should react good.
Ran a 10.7 last weekend on 93, stage 2 tune only, and no meth injection.
Have you got this sorted yet? I’m going to get my car ready this weekend and try to hit 10.5. New plugs, new filters, fill up my WMI, and will use some race fuel. Weather is so cool car should react good.
Ran a 10.7 last weekend on 93, stage 2 tune only, and no meth injection.
Have you got this sorted yet? I’m going to get my car ready this weekend and try to hit 10.5. New plugs, new filters, fill up my WMI, and will use some race fuel. Weather is so cool car should react good.
Ran a 10.7 last weekend on 93, stage 2 tune only, and no meth injection.
you need downpipes to run a stage 2 tune pipe, right?
what plugs are you going with? did your tuner tell you to go with a colder plug? how many miles on your stock plugs before you replaced?
this is what they log, right? you can confirm by checking either some of the graphs you have or some CSVs
i has to reset my JB4 so all my logs from last year got deleted. I will have some from this weekend and next when I do some pulls. I can send them over.
0-60 at 2.8-2.9. Trap on my 10.7 was 126-127. Hoping to hit 130 trap next weekend
you need downpipes to run a stage 2 tune pipe, right?
what plugs are you going with? did your tuner tell you to go with a colder plug? how many miles on your stock plugs before you replaced?
Message me your email and I will send you at least the log from my 10.7 and maybe I can send a few more this weekend.
i run stock plugs and stock gap. Replace them every year. Car had 17k miles when I purchased and had new plugs installed when I bought it, now at 25k and having new plugs installed today. DME recommended stock plugs and stock gap and I have never once had a misfire
i has to reset my JB4 so all my logs from last year got deleted. I will have some from this weekend and next when I do some pulls. I can send them over.
0-60 at 2.8-2.9. Trap on my 10.7 was 126-127. Hoping to hit 130 trap next weekend
Just curious where you are making these runs. Aren't you in Mpls as well? I still have snows on the car.
Coincidently I was running 3.27 stock on our Sottozeros Thought that wasn't terrible on snow tires
Just curious where you are making these runs. Aren't you in Mpls as well? I still have snows on the car.
Coincidently I was running 3.27 stock on our Sottozeros Thought that wasn't terrible on snow tires
My in laws live a little outside the metro and I found a perfect road for 1/4 mile passes near them. Pretty flat and is deserted.
3.27 is solid! My 0-60 on my 1/4 mile run last weekend was 2.97 so not great but I also have Sottozero Serie II on right now. I’m usually in 2.8 range with my PS4S.
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Thought that wasn't terrible on snow tires
