Meth Tunability with the Veloster N - JB4tech.com

8speednate · **Meth Tunability with the Veloster N -** 06-11-2021, 10:13 PM

Whats parameters have you guys changed to find they worked best on your veloster.

Djfourmonie · 06-11-2021, 11:22 PM

Start at 20-30 Boost Additive. What I've found that if you dramatically increase fuel quality the stock PCM is slow to adjust. By demanding less boost you can bring in the boost gradually.

The base settings in the directions are fine.

Watch your ignition advance you should be above 10 degrees advance during your log runs.

What is your current mixture?

8speednate · 06-12-2021, 09:19 AM

Quote:

Originally Posted by Djfourmonie

Start at 20-30 Boost Additive. What I've found that if you dramatically increase fuel quality the stock PCM is slow to adjust. By demanding less boost you can bring in the boost gradually.

The base settings in the directions are fine.

Watch your ignition advance you should be above 10 degrees advance during your log runs.

What is your current mixture?

Right now I'm running boost juice but I would like to get m1.

Djfourmonie · 06-12-2021, 10:59 AM

You should be good to go.

With the 1.6L engine I've found Boost Additive 50-60 works best.

8speednate · 06-12-2021, 03:13 PM

Quote:

Originally Posted by Djfourmonie

You should be good to go.

With the 1.6L engine I've found Boost Additive 50-60 works best.

Hmm... I wonder what I should do for the 2.0T motor. I haven't had luck with temps dropping yet.

Djfourmonie · 06-12-2021, 03:22 PM

Are you sure there is flow?

You should be 10-15 degrees below what you are normally with it off.

Last time out 89-90 degrees ambient, 78 degrees at the end of a 1/4 mile pass.

The longer its on the more the temperature drops. Did you do a purge of the system after installation?

Lil Ripper · 06-12-2021, 05:06 PM

Has the( meth trigger mode) been selected in the (user adjustments)

8speednate · 06-12-2021, 09:10 PM

Quote:

Originally Posted by Lil Ripper

Has the( meth trigger mode) been selected in the (user adjustments)

Meth trigger mode for my map 6 is 0 same as the meth saftey.

I do get wmi flow on logs and gauges buy temps are ok on a 3rd gear pull 2500-redline ambient is like 78-85 I'll get a 93 lowest iat then it starts increasing after that halfway through the pull.

8speednate · 06-12-2021, 09:11 PM

Quote:

Originally Posted by Djfourmonie

Are you sure there is flow?

You should be 10-15 degrees below what you are normally with it off.

Last time out 89-90 degrees ambient, 78 degrees at the end of a 1/4 mile pass.

The longer its on the more the temperature drops. Did you do a purge of the system after installation?

I most definitely purged. I'm not sure but I'm not getting anywhere below ambient. That's why I'm trying to see what parameters I can change.

Lil Ripper · 06-13-2021, 03:36 AM

What is the minimum flow boost setting at?
Is your inline filter on the solenoid installed with the proper flow direction?
Is the filter dirty?
Is the nozzle dirty ?
Did you pull the nozzle from the charge pipe to see how it was spraying?

You can only set when the pump comes on and your boost Additive... Neither of these change the rate of flow from the pump.

I would just check your install and go over it and look for anything that may impede flow from the tank to the pump to the solenoid and nozzle.

8speednate · 06-13-2021, 02:51 PM

Quote:

Originally Posted by Lil Ripper

What is the minimum flow boost setting at?
Is your inline filter on the solenoid installed with the proper flow direction?
Is the filter dirty?
Is the nozzle dirty ?
Did you pull the nozzle from the charge pipe to see how it was spraying?

You can only set when the pump comes on and your boost Additive... Neither of these change the rate of flow from the pump.

I would just check your install and go over it and look for anything that may impede flow from the tank to the pump to the solenoid and nozzle.

I've checked many times and no issues.

Lil Ripper · 06-13-2021, 09:03 PM

What nozzle Are you using?

Lil Ripper · 06-13-2021, 09:08 PM

My meth trigger mode is set to (1) in the user adjustments.... Sprays on all maps

8speednate · 06-14-2021, 12:11 AM

Quote:

Originally Posted by Lil Ripper

What nozzle Are you using?

Bms recommend nozzle

8speednate · 06-14-2021, 12:11 AM

Quote:

Originally Posted by Lil Ripper

My meth trigger mode is set to (1) in the user adjustments.... Sprays on all maps

I am currently testing in map7

Djfourmonie · 06-14-2021, 12:21 AM

I am going to assume a BM7?

During the day you should be able to go well below ambient temperature.

It's harder at night since the air is cool already. As I said WMI really shines when it's hot.

Also if you are using the BMS nozzle adapter, that temperature is being taken right at the sensor location. That is a good idea but not what it is by the time it hits the throttle blade.

With 50/50 ish I gained 14-16 whp over pump gas. About the same gain with E30 blend in the fuel tank, in other words I make 250+ hp Map3/Boost Additive 50-60.

That should result in 1.5-2 mph increase in trap speed (1/4 mile)

Terry @ BMS · 06-14-2021, 08:52 AM

If you're gauging WMI performance off IAT drops you're doing it wrong.

Gauge WMI performance off fuel trims and timing corrections.

8speednate · 06-14-2021, 11:06 AM

Quote:

Originally Posted by Terry @ BMS

If you're gauging WMI performance off IAT drops you're doing it wrong.

Gauge WMI performance off fuel trims and timing corrections.

Gotcha. Becuase the iat are doing OK. I will look further into it.

8speednate · 06-14-2021, 11:08 AM

Quote:

Originally Posted by Terry @ BMS

If you're gauging WMI performance off IAT drops you're doing it wrong.

Gauge WMI performance off fuel trims and timing corrections.

What does "min advance" do in wmi settings. Becuase when I set it to 0 while on map7 it reverts to map0.