[Steve @ BMS/Fuel-It!]

Correction...map 4 first and then map 5 if everything looks good. The B58 Gen 2 typically does better with the absolute maps rather than the additive maps and map 3 can be pretty aggressive depending on DME_BT and ECU_PSI.

[ToThePublic]

Finally got the plugs in. NGK 94201 Laser Iridium's gapped down to 0.022". There's 2 Map 4 runs in the log. How's that look compared to the last log on OEM plugs? Thanks!

[Cannon @ BMS]

Is traction control all the way off during this log?

[ToThePublic]

Traction control was active for them. I don’t think I’ve turned it off for any of the logs. I’ve been using Sport Individual with everything but the trans in Sport. Should I be turning off traction? Any other settings for logging?

[ToThePublic]

Here's a Map 4 log with Traction Control switched off.

[Steve @ BMS/Fuel-It!]

That looks pretty clean. Timing is good, boost is on target, etc.

[ToThePublic]

Awesome! Make sense to see what Map 5 looks like?

[Steve @ BMS/Fuel-It!]

Originally Posted by ToThePublic

Awesome! Make sense to see what Map 5 looks like?

Absolutely!

[ToThePublic]

Here's Map5 from this morning.

[Cannon @ BMS]

Looks healthy.

[Steve @ BMS/Fuel-It!]

Originally Posted by Cannon @ BMS

Looks healthy.

Agreed....I'd stick with that setup and fuel, WGDC and trims are pretty much maxed so I'd say this is going to be about as good as it's going to get without pushing too hard.

[ToThePublic]

That's awesome! Thanks guys for all your help!

I'd love to dyno the car now to see how much power it's making now. I'm toying with going to a big turbo, but that won't be for at least 6-12 months.

On a regular basis, what would you suggest as the best Map to leave active? I'll pull up Map 5 when I want to push it, or am I good to leave it active normally?

I may log once more without octane boost to see what just pump 93 looks like too.

Thanks again!

[ToThePublic]

Hope everyone enjoyed the holidays!

Here's a Map 5 log on just pump 93 from the local Exxon and no octane boost.

[Cannon @ BMS]

Timing really didn't get much worse. You are ok to leave it in map 5.
Also, looking back through this chat, did you get those spark plugs installed? If so, did you gap them down?

[ToThePublic]

Thanks for taking a look and for the input. I did install NGK 94201 Laser Iridium plugs and gapped them down to down to 0.022".

[Cannon @ BMS]

Perfect.

[ToThePublic]

So I've been seriously considering going to a Pure 800, but I'm not sure what that would entail in terms of any other mods I'll need to make to accommodate it, or if it's a wise decision for what's more or less my daily driver. Are there any other mechanical mods I'd need to make first? Would one of the Maps on the JB4 still be ideal, or will it need custom mapping? Any other drivability issues I may run into?

I'm trying to decide if it's worth allocating funds to a turbo upgrade this year or if I'm pissing in the wind undertaking it. There's plenty of other things I want to do with the car but if a turbo upgrade makes sense, that's probably the first one I'd undertake. Any thoughts are greatly appreciated.

[Steve @ BMS/Fuel-It!]

You'll need some fuel system upgrades when stepping up to that turbo, especially if you plan on running E85. First thing to verify is that you'll be able to upload the BEF though. Otherwise you won't see the gains. Otherwise with the JB4, BEF, FBO, and supporting fueling mods...you'll be fine.

[ToThePublic]

Thanks for the information. Are those additional mods specific to the Pure 800 and its demands? I've never done a turbo upgrade, so I'm not sure of the requirements. I'm guessing it's based on the target horsepower?

Is there a turbo upgrade for the platform that I can add without upgrading a lot more than I've done already (albeit pretty minimal so far), but is worth the performance increase?

[Cannon @ BMS]

No, they are not specific mods, they will work with any turbo setup. But you will need the mods to increase horsepower a fair amount.

[ToThePublic]

Makes sense and thanks again for the info.

I'll probably enjoy this performance for now and see how it feels in a year or two. (LOL famous last words) This car is a monster, just always have to push for more.

[Cannon @ BMS]

Originally Posted by ToThePublic

Makes sense and thanks again for the info.

I'll probably enjoy this performance for now and see how it feels in a year or two. (LOL famous last words) This car is a monster, just always have to push for more.

[Jsg]

Originally Posted by ToThePublic

Makes sense and thanks again for the info.

I'll probably enjoy this performance for now and see how it feels in a year or two. (LOL famous last words) This car is a monster, just always have to push for more.

Hi sir, I have switch my e90 n54 jb4 to a 21 m340ix and really want to install jb4 on it, I just waiting for first appointment at dealer. There is a lot of contradictions on web about putting a jb4 on 340 light hybrid car about performance gains… can you give me your impressions? On n54 it was awesome but on b58??
Thank you!!

[ToThePublic]

Originally Posted by Jsg

Hi sir, I have switch my e90 n54 jb4 to a 21 m340ix and really want to install jb4 on it, I just waiting for first appointment at dealer. There is a lot of contradictions on web about putting a jb4 on 340 light hybrid car about performance gains… can you give me your impressions? On n54 it was awesome but on b58??
Thank you!!

Hi - I’m thoroughly impressed with the added performance and the support here is second to none. Definitely recommend. And the install is real easy; the instructions walk you through everything if you didn’t want to wait on a dealer to install.