[spike98]

2020 C43 with Petro 94. Installed the JB4 with BCM module. Ran 0-60 and 1/4mi times with the onboard computer both stock and running map 1 and 2. No decrease in time and butt dyno confirms. Car is runs 0-60 in over 5 seconds.

The turbo noise (woosh noise) increases with maps but it seems like its falling flat. The logs seem to show boost tapering off to almost stock by the upper RPM. Thoughts?

Log of map 1 and 2 attached.

[Steve @ BMS/Fuel-It!]

Looks clean to me and boost is hitting the additive target.

Can you upload a log with all 3 maps for comparison?

[spike98]

Originally Posted by Steve @ BMS/Fuel-It!

Looks clean to me and boost is hitting the additive target.

Can you upload a log with all 3 maps for comparison?

Will do.

I can say for certain that i did have a boost leak. Lost connection where the IC meets the intake manifold. Upgraded the clamps to T-bolt style and it pulls like a freight train.

Im interested in feedback still on the new logs that i will upload shortly.

[spike98]

Originally Posted by Steve @ BMS/Fuel-It!

Looks clean to me and boost is hitting the additive target.

Can you upload a log with all 3 maps for comparison?

Here you go! 4 Maps 0 through 3.

[Steve @ BMS/Fuel-It!]

On map 0 your stock boost falls off to about 10psi. On subsequent maps that the ECU psi is dropping so it's offsetting some of your additive but still see pretty good gains. Timing still looks good, how does a log on map 4 look?

[spike98]

Originally Posted by Steve @ BMS/Fuel-It!

On map 0 your stock boost falls off to about 10psi. On subsequent maps that the ECU psi is dropping so it's offsetting some of your additive but still see pretty good gains. Timing still looks good, how does a log on map 4 look?

Map 4 attached

Are the turbos running out of steam at the higher RPM range? What about the throttle not reaching 100% until 4500rpm?

[Steve @ BMS/Fuel-It!]

So far you're holding the requested boost. Throttle closure is pretty minor...I wouldn't worry about it in that particular log.