[Terry @ BMS]

Originally Posted by ddnspider

Log check please, map 6 at the track. I can feel and tell it's cutting throttle at the top of 1st. I've heard this is common to prevent over rev.

Yes you over-revved first. Lower boost in 1st to improve traction.

[ddnspider]

You think the timing in high gear isn't too jagged? Ps....12.6 @112. Not bad for a little ol RWD Premium

[Terry @ BMS]

Seems fine to me, no sharp drops.

[Esco]

Guess I missed the announcement...

JB4 Methanol Injection Kit for Infiniti Q50 / Q60


Terry,
Any installers you would recommend in the Dallas, TX area?

[ddnspider]

Originally Posted by Esco

Guess I missed the announcement...

JB4 Methanol Injection Kit for Infiniti Q50 / Q60


Terry,
Any installers you would recommend in the Dallas, TX area?

there's a thread specifically for this in this section of the site.

[Robyn1114]

Hello all,

New member here, just ordered my JB4 for my 2017 Q60 premium AWD. I’ve had the car for 7 months now and love it, but it’s time for more power.
I’m from Kansas so I’m limited to 91 octane, will I be able to run map 2 or a tapered map 6 with a max of 5psi on pump gas?

[jrobohm]

Originally Posted by Robyn1114

Hello all,

New member here, just ordered my JB4 for my 2017 Q60 premium AWD. I’ve had the car for 7 months now and love it, but it’s time for more power.
I’m from Kansas so I’m limited to 91 octane, will I be able to run map 2 or a tapered map 6 with a max of 5psi on pump gas?

A common question from the non-93 states. Truth is only logging will tell how your Q will handle different maps. Starting with Map2 is a good start - do some runs and post the logs for the forum to review. If all looks good at Map2 - proceed to a slightly higher peak boost map - log the runs - post the logs for review.

[Terry @ BMS]

Originally Posted by Robyn1114

Hello all,

New member here, just ordered my JB4 for my 2017 Q60 premium AWD. I’ve had the car for 7 months now and love it, but it’s time for more power.
I’m from Kansas so I’m limited to 91 octane, will I be able to run map 2 or a tapered map 6 with a max of 5psi on pump gas?

Map2 should be fine on 91, we run it all the time on ours.

[PRQ50]

I installed my fuel wires and I’m looking for a way to waterproof the connections, I tried some heat shrink but it didn’t shrink small enough for the wire. I regularly wash my engine bay, and don’t want any issues. Thanks for the help.

[Terry @ BMS]

We haven't had any reports of water damage or intrusion on the posi-taps. But the JB4 enclosure itself while water resistant should not be directly soaked.

There are these things called posi-tight but I've never tested them myself: Posi-Tite- Watertite Connector

[PRQ50]

Originally Posted by Terry @ BMS

We haven't had any reports of water damage or intrusion on the posi-taps. But the JB4 enclosure itself while water resistant should not be directly soaked.

There are these things called posi-tight but I've never tested them myself: Posi-Tite- Watertite Connector

I had seen these, but it looks like they are butt connectors, not taps.

[Terry @ BMS]

You could also just squirt some dielectric grease on the connection point.

[Robyn1114]

Originally Posted by Terry @ BMS

Map2 should be fine on 91, we run it all the time on ours.

Good to hear, I’ve read elsewhere that even 4psi is problematic on 91 octane. I’ll be sure to log some runs and post them here with every increase of boost.

[vietnameeh]

Originally Posted by Robyn1114

Good to hear, I’ve read elsewhere that even 4psi is problematic on 91 octane. I’ll be sure to log some runs and post them here with every increase of boost.

Definitely interested in seeing your results

I have my jb4 just waiting for break in and run 91 octane

[ddnspider]

Originally Posted by PRQ50

I installed my fuel wires and I’m looking for a way to waterproof the connections, I tried some heat shrink but it didn’t shrink small enough for the wire. I regularly wash my engine bay, and don’t want any issues. Thanks for the help.

That is not a good idea. The engine bay is not meant to be completely sealed and handle direct water intrusion.

[Terry @ BMS]

Originally Posted by Robyn1114

Good to hear, I’ve read elsewhere that even 4psi is problematic on 91 octane. I’ll be sure to log some runs and post them here with every increase of boost.

We have map1 setup with 4psi in the midrange tapering to 2psi up top, we haven't met a 91 octane fuel yet that can't handle it. And most can handle more. But when in doubt just use the JB4s logging feature to capture the data and find out for sure how the car likes it.

[parsonsq50]

This is Map7,fuel wires, and E30 mix. How do I read this to know if its safe to turn it up a little more?

[Robyn1114]

Hey Terry

Just finished installing my JB4, here are my first logs, one on map 1 & a short one on map 2
91 octane, completely stock, & 60 degree outside temps

I assume the ecu_psi is what the stock ecu is calling for in boost, if that’s the case then aren’t mine a little high for a non Red Sport, especially with map 2?

[Robyn1114]

I assumed it would ship with the most recent firmware, I guess not. Now that it’s updated I’ll do some more testing tomorrow.
Map 2 definitely leaves a smile on your face, looking forward to trying a torque happy red light to red light map 6 setup

[eltiodolfo]

Originally Posted by Terry @ BMS

You're on a race gas/E85 mix map. Drop down to map2 and log again.

Here is map 2.

[OldLady]

Disconnected my JB4 for an oil change; went to install based on original connection steps and I’m getting a malfunction error when I start up. Can someone point me in right direction? Loose pins or missed connection?

[OldLady]

Never mind, back to normal. Something was loose in the control box.

[Terry @ BMS]

Originally Posted by eltiodolfo

Here is map 2.

Good looking more normal. You could give map3 a whirl.

[Terry @ BMS]

Originally Posted by parsonsq50

This is Map7,fuel wires, and E30 mix. How do I read this to know if its safe to turn it up a little more?

That's as high as I'd run it, and you may have better results in map5. Evaluate both and see which works best for you.

[Terry @ BMS]

Originally Posted by OldLady

Never mind, back to normal. Something was loose in the control box.

Some of the earlier harnesses had a tendency to have a pin in the MAP connectors come loose causing a similar thing. If it comes back let our support know and we can swap the harness out for you.