[XC3LLR8]

$230 for 40 HP and 50 TQ from a 20 minute install I thought I'd find lots of reviews, but nada.

Am I missing something?

https://www.dinancars.com/products/s...arts/D440-0047

[idontsave]

It's basically a JB+ with bluetooth control. If you only have access to 91 octane I would probably go for Dinantronics X or JB4. Personally experienced a lot of jerkiness with the single sensor versions. Might be better on 93 or E30.

[XC3LLR8]

Originally Posted by idontsave

It's basically a JB+ with bluetooth control. If you only have access to 91 octane I would probably go for Dinantronics X or JB4. Personally experienced a lot of jerkiness with the single sensor versions. Might be better on 93 or E30.

I think it was AutoID that had a JB4 on their M240 and took it off, saying it was not very smooth. What is it with the piggyback tuners that cause jerkiness?

[idontsave]

Originally Posted by XC3LLR8

I think it was AutoID that had a JB4 on their M240 and took it off, saying it was not very smooth. What is it with the piggyback tuners that cause jerkiness?

I think it has something to do with the fact that it can only control particular parameters based on the sensors it is plugged into. It essentially tricks the ECU into putting out more power, though JB4 does give you a bit more control and allow for custom mapping.

[M240SLC]

Originally Posted by XC3LLR8

I think it was AutoID that had a JB4 on their M240 and took it off, saying it was not very smooth. What is it with the piggyback tuners that cause jerkiness?

Did they? I saw Jack and Nathan both race it on OG (Nathan most recently about 6 weeks ago), and the JB4 was still on it then. They hit 0-60mph in 3.02s and the 1/4 in 11.347s @ 121.36mph in that last race. That was sans DP, just JB4, intake and CB exhaust.

[XC3LLR8]

Originally Posted by M240SLC

Did they? I saw Jack and Nathan both race it on OG (Nathan most recently about 6 weeks ago), and the JB4 was still on it then. They hit 0-60mph in 3.02s and the 1/4 in 11.347s @ 121.36mph in that last race. That was sans DP, just JB4, intake and CB exhaust.

I could've sworn I saw a video or a comment by them somewhere saying they removed the JB4 because they were getting inconsistent performance. Maybe they got it sorted out and now running it again??

[idontsave]

Originally Posted by XC3LLR8

I could've sworn I saw a video or a comment by them somewhere saying they removed the JB4 because they were getting inconsistent performance. Maybe they got it sorted out and now running it again??

Another issue could be map choice. On the past gen B58 most were running the additive maps while for our cars it's recommended to run the absolute target maps, map 5 in particular. Custom mapping on JB4 would also help smooth things out. I know there's one guy that offers it in the Supra community and is damn good from what I've heard.

[M240SLC]

Originally Posted by idontsave

Another issue could be map choice. On the past gen B58 most were running the additive maps while for our cars it's recommended to run the absolute target maps, map 5 in particular. Custom mapping on JB4 would also help smooth things out. I know there's one guy that offers it in the Supra community and is damn good from what I've heard.

If you run map 5, should the EWG connector definitely be added on?

[mike@x-ph.com]

Originally Posted by XC3LLR8

$230 for 40 HP and 50 TQ from a 20 minute install I thought I'd find lots of reviews, but nada.

Am I missing something?

https://www.dinancars.com/products/s...arts/D440-0047

It's a good tune for the value. It'll add noticeable power and is easy to install

You need to invest in more advanced piggybacks if you want a smoother power delivery.

[XC3LLR8]

Originally Posted by mike@x-ph.com

It's a good tune for the value. It'll add noticeable power and is easy to install

You need to invest in more advanced piggybacks if you want a smoother power delivery.

When you say "smoother power delivery", does that mean the Dinan Sport and JB+ are erratic with a loss of OEM smoothness?

[mike@x-ph.com]

Originally Posted by XC3LLR8

When you say "smoother power delivery", does that mean the Dinan Sport and JB+ are erratic with a loss of OEM smoothness?

I would not say erratic, but since it's an additive map, it will add the same set amount of PSI to every RPM.

In some cases, if the OEM boost is high, the total PSI becomes too aggressive. Your DME will protect your engine by reducing timing, which results in less power and more jerky power delivery.

[Dinosoar]

I got one, albeit for my 230. Of course, it is the same box. I don't experience jerkiness and there's a clear power increase. However, the power boost is all related to getting the turbo spooled up first where this thing has any effect.

For those who don't know, all it does is trick the computer that boost is lower, so the engine adds boost. There are just the two leads you have to "interrupt." I will likely upgrade later, but it is cheap, works well, and no [known] issues (famous last words, right?).

I do recommend this device for any G42 driver.

[335i E92]

I spoke to Jack at AutoID last week, they're currently running the Jb4 on Map 5 with catless DP and eventuri intake with no issues.

Unless your looking to run the adaptive maps within JB4 or run logs there's no advantage in terms of smoothness having a JB4 over the JB+.

[XC3LLR8]

Originally Posted by 335i E92

I spoke to Jack at AutoID last week, they're currently running the Jb4 on Map 5 with catless DP and eventuri intake with no issues.

Unless your looking to run the adaptive maps within JB4 or run logs there's no advantage in terms of smoothness having a JB4 over the JB+.

I'm assuming any "jerkiness" from the JB+ only comes from max setting, as I find my JB+ extremely smooth in default.

[sandrik93]

Originally Posted by XC3LLR8

When you say "smoother power delivery", does that mean the Dinan Sport and JB+ are erratic with a loss of OEM smoothness?

Yes. JB+ creates noticeable jerkiness (at least on B48 engines). Had it on my 230i and sold it. Went with BM3. Even Stage 1 bootmod3, that significantly increased power of the B48 engine, did cause loss in smoothness. Most noticeable was the interaction with transmission. Earlier gears and slow driving (e.g. traffic) became fairly uncomfortable.
My current B58 is staying stock. I love how well the power delivery is tuned from factory.

[LukyLu]

Originally Posted by 335i E92

I spoke to Jack at AutoID last week, they're currently running the Jb4 on Map 5 with catless DP and eventuri intake with no issues.

Unless your looking to run the adaptive maps within JB4 or run logs there's no advantage in terms of smoothness having a JB4 over the JB+.

I think They originally started with Map 2

[XC3LLR8]

Originally Posted by LukyLu

I think They originally started with Map 2

Regarding the JB4 the division of Maps 2/3 vs. Maps 4/5 is crazy. I've read where people say only run 4 or 5 on the new B58 (after verifying logs with BMS), and others say only Map 2 would run properly, even after working with BMS extensively on Map 4 or 5 logs.

[mike@x-ph.com]

Originally Posted by XC3LLR8

Regarding the JB4 the division of Maps 2/3 vs. Maps 4/5 is crazy. I've read where people say only run 4 or 5 on the new B58 (after verifying logs with BMS), and others say only Map 2 would run properly, even after working extensively on Map 4 or 5 logs.

Everyone's "safe" limits are different.

These cars run high boost, and data logging is a must, in my opinion, to see which map works for your car best.

If the customer does not wish to datalog or owns a tuner that does not have this feature, I recommend going the safer route. The extra 5-10 is not worth it, in my opinion.

[XC3LLR8]

Originally Posted by mike@x-ph.com

Everyone's "safe" limits are different.

These cars run high boost, and data logging is a must, in my opinion, to see which map works for your car best.

If the customer does not wish to datalog or owns a tuner that does not have this feature, I recommend going the safer route. The extra 5-10 is not worth it, in my opinion.

When you say "the safer route" (on a G42) I'm assuming you're referring to a JB4 on Map 4?

[mike@x-ph.com]

Originally Posted by XC3LLR8

When you say "the safer route" (on a G42) I'm assuming you're referring to a JB4 on Map 4?

Its safe to run other piggybacks, but don't use their most aggressive maps. Keep the boost at + 3PSI, and you should be good.

[XC3LLR8]

Originally Posted by mike@x-ph.com

Its safe to run other piggybacks, but don't use their most aggressive maps. Keep the boost at + 3PSI, and you should be good.

Do you know the dial position for 3 PSI on the JB+? Isn't the default 3 o'clock position 4 PSI and max is 4.5 PSI?

[mike@x-ph.com]

Originally Posted by XC3LLR8

Do you know the dial position for 3 PSI on the JB+? Isn't the default 3 o'clock position 4 PSI and max is 4.5 PSI?

I'm not too sure, you'll need to check with BMS directly