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Not sure of the event details and if there is just a slow roll-on or what, but the 1/4 mile times look way slow for the mph, right? I’d think those trap speeds would equate to very low 11’s?
They are slow for the mph but look at the 60ft 2.2 to 2.3. with good traction and tires should get 1.7 maybe 1.6 which will give you 11.0 to 11.2 1/4. So on 93 octane prob run 11.2 11.3 at 124ish if I had to guess. Which in my opinion is pretty good. Any pricing on the intake yet.
Last edited by White C400; Oct 28, 2018 at 06:19 PM.
We got lots of good data at the Shift Sector event. We'll be integrating what we learned into some changes to the prototype mapping. Hit the speed limiter on all the JB4 runs. Map 0 which disables the JB4 ran 11.5mph less at 144.4!
All runs on a mix of about 80% race gas with the BMS intake prototype installed.
Im surprised the tune doesnt take the speed limiter out. How much more do u think it had before hitting limiter or was it hitting the limiter right on the line in the half mile.
Im surprised the tune doesnt take the speed limiter out. How much more do u think it had before hitting limiter or was it hitting the limiter right on the line in the half mile.
Surprised as well. That’s a shame it’s a non-S. S wouldnt cut until 180.
Im surprised the tune doesnt take the speed limiter out. How much more do u think it had before hitting limiter or was it hitting the limiter right on the line in the half mile.
You'd have the flash the ECU to raise the limiter on this platform. And then the car is flagged. Not sure what the S speed limiter is set to but unless you're racing at half mile races, probably most of you won't be going over 155mph very often.
The trap delta between stock and JB4 was much higher than we expected!
What are the main advantages of this over the Dinan tuner? I currently have the dinan tuner and love it. Would there be a downside to running your intake with the dinan tuner? I would think not given how the piggybacks work. More importantly what gains are expected from the intake?
What are the main advantages of this over the Dinan tuner? I currently have the dinan tuner and love it. Would there be a downside to running your intake with the dinan tuner? I would think not given how the piggybacks work. More importantly what gains are expected from the intake?
Most is covered earlier in the thread, but CANBUS, map switching, logging (all via an actual phone app that works, not just promised and a year later isn’t out), boost limiting by gear to promote traction. Lots of things.
You'd have the flash the ECU to raise the limiter on this platform. And then the car is flagged. Not sure what the S speed limiter is set to but unless you're racing at half mile races, probably most of you won't be going over 155mph very often.
The trap delta between stock and JB4 was much higher than we expected!
I was just wondering not to consurned I have the S anyway. But my question before is that it hitting the limiter in the half would it have gotten a higher mph if it didn't hit limiter or was it pretty much right at the end of the 1/2. Or did it have another mph or 2.
I was just wondering not to consurned I have the S anyway. But my question before is that it hitting the limiter in the half would it have gotten a higher mph if it didn't hit limiter or was it pretty much right at the end of the 1/2. Or did it have another mph or 2.
Probably had some more trap speed in it on the more aggressive maps.
Most is covered earlier in the thread, but CANBUS, map switching, logging (all via an actual phone app that works, not just promised and a year later isn’t out), boost limiting by gear to promote traction. Lots of things.
All of that but more fundamentally, fuel control. Dinan doesn't seem to offer any fuel control based on this photo. It's just the 4 MAP sensor connections. JB4 has 4 MAP sensor connections, 2 fuel connections, 1 OBDII connection, and an optional boost_solenoid connection: http://files.dinancars.com/webresour.../D440-0054.jpg
All of that but more fundamentally, fuel control. Dinan doesn't seem to offer any fuel control based on this photo. It's just the 4 MAP sensor connections. JB4 has 4 MAP sensor connections, 2 fuel connections, 1 OBDII connection, and an optional boost_solenoid connection: http://files.dinancars.com/webresour.../D440-0054.jpg
Good info. What makes the boost solenoid connection optional? Does it just provide boost readout, so if you don't care to see what it is then you don't need it? Or is there an operating difference when using it or not using it?
All of that but more fundamentally, fuel control. Dinan doesn't seem to offer any fuel control based on this photo. It's just the 4 MAP sensor connections. JB4 has 4 MAP sensor connections, 2 fuel connections, 1 OBDII connection, and an optional boost_solenoid connection: http://files.dinancars.com/webresour.../D440-0054.jpg
Yes, Dinan uses 4 connections. Two MAP sensor connections, and two boost pressure sensor connections. There are also a few piggybacks out there that have a 5th connector for the camshaft position sensor.
Good info. What makes the boost solenoid connection optional? Does it just provide boost readout, so if you don't care to see what it is then you don't need it? Or is there an operating difference when using it or not using it?
It allows the JB4 to to directly control the turbo wastegates. We're evaluating now in what situations it will be beneficial. But it's intended more for the aggressively tuned race gas or water/meth crowd who want every last horsepower.
Boost solenoid? Does this mean the future may hold a single turbo conversion? Would be same as n54 no? Jb4 having the capability to control a Mac solenoid?
Boost solenoid? Does this mean the future may hold a single turbo conversion? Would be same as n54 no? Jb4 having the capability to control a Mac solenoid?
Yes, very useful for singles, hybrid turbos, etc. Want to make sure we have all the future bases covered with the hardware design. We're also working with customers who already have flash tuning in place and want to use the JB4 for fine tuning, boost by gear, logging, WMI control, etc. Got that covered too.
Yes, very useful for singles, hybrid turbos, etc. Want to make sure we have all the future bases covered with the hardware design. We're also working with customers who already have flash tuning in place and want to use the JB4 for fine tuning, boost by gear, logging, WMI control, etc. Got that covered too.
Awesome! Very exciting stuff! I will be one of your customers with an ECU flash already done, but will 100% be running in combination for the map switching and logging capabilities and fine tuning. Extremely excited for a map 5 and some e blends if possible!
In regards to e85, have you guys tried full e85? Or only e30-40 blends? If you have tried full, is there big limitations to our fueling that would need to be addressed?
Awesome! Very exciting stuff! I will be one of your customers with an ECU flash already done, but will 100% be running in combination for the map switching and logging capabilities and fine tuning. Extremely excited for a map 5 and some e blends if possible!
In regards to e85, have you guys tried full e85? Or only e30-40 blends? If you have tried full, is there big limitations to our fueling that would need to be addressed?
Straight E85 no go, a mix is workable, but we're running in to fuel pressure issues at higher power levels on any E85 mix that need to be further evaluated. We'll definitely include an E30 map though with it. Just not sure yet where it's performance will wind up.
Straight E85 no go, a mix is workable, but we're running in to fuel pressure issues at higher power levels on any E85 mix that need to be further evaluated. We'll definitely include an E30 map though with it. Just not sure yet where it's performance will wind up.
Is there a high pressure fuel pump upgrade available? I was able to upgrade my hpfp on my Audi with an Autotech unit to keep up with higher boost levels and 33% ethanol blends. Is that an option on this platform? If not, 100% meth injection could add some fuel to the fire.
Is there a high pressure fuel pump upgrade available? I was able to upgrade my hpfp on my Audi with an Autotech unit to keep up with higher boost levels and 33% ethanol blends. Is that an option on this platform? If not, 100% meth injection could add some fuel to the fire.
On pump I'm not sure what hardware yet exists, but the JB4 supports progressive water/meth control with safety. So we'll definitely be working on that.
Straight E85 no go, a mix is workable, but we're running in to fuel pressure issues at higher power levels on any E85 mix that need to be further evaluated. We'll definitely include an E30 map though with it. Just not sure yet where it's performance will wind up.
I was talking to a guy who has ventured off on his own R&D on this platform and doesn't post much about it. He told me the stock pump is 400l/hr however the line from factory is 8mm od and claimed going to a 10mm line made a big difference, he also claimed adding a second line would help also. Last we talked he was upgrading and adding a second pump.
You mentioned earlier that you guys are offering a 5 year warranty...
is that any different then what Dinan offers?
I think for a lot of people that’s the only reason why they wouldn’t switch. More HP is always amazing. But on more aggressive tuning mapping and being able to adjust boost levels, kind of scares me on a product that hasn’t been released if that makes since.
i run jb4 on my c43 and have increased the top speed via oem ways. if anyone wants their top speed increased, pm me. I do not need to flash or crack anything open. Just plug into OBD and can increase it. I make it sound simple as I have done all the leg work on the back end but pm if you are interested. It pairs nicely with the jb4.
You mentioned earlier that you guys are offering a 5 year warranty...
is that any different then what Dinan offers?
I think for a lot of people that’s the only reason why they wouldn’t switch. More HP is always amazing. But on more aggressive tuning mapping and being able to adjust boost levels, kind of scares me on a product that hasn’t been released if that makes since.
We warranty the JB4 tuning hardware not your tuned vehicle. There are tens of thousands of JB4s out in the wild since 2008 so it's not a new approach by any stretch. One that has proven to be very reliable especially on the default maps. But there are always risks running higher than factory power levels and the the more power you add the higher the risks so consider that when deciding whether or not to tune it.
Not sure of the event details and if there is just a slow roll-on or what, but the 1/4 mile times look way slow for the mph, right? I’d think those trap speeds would equate to very low 11’s?
It's a 1/2 mile race, not much effort went in to starting the runs as all their timing equipment measures is your trap speed at the end of 1/2 mile. With dragy in the car though you can at least get a good idea on how 1/4 mile traps look. Given the high DA we were happy with both. Especially the stock to tuned delta.
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