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Showing results 1 to 25 of 100 Search: Posts Made By: jrobohm
Forum: Infiniti Q50 Q60 VR30DDTT 01-10-2020, 12:59 PM
Replies: 335
Views: 14,761
Posted By jrobohm
RS400newbie - How’s the break-in period coming...

RS400newbie - How’s the break-in period coming along?
Forum: Infiniti Q50 Q60 VR30DDTT 12-31-2019, 06:47 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
RS - recommend starting with Map1 - get some logs...

RS - recommend starting with Map1 - get some logs posted here for review before moving to more aggressive maps / custom Map6. For reference, my SS on E30’ish fuel and stock fuel system and exhaust...
Forum: Infiniti Q50 Q60 VR30DDTT 12-23-2019, 01:02 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Quick question/test: Have either of you tried the...

Quick question/test: Have either of you tried the following feature of the v7 firmware to see if this helps alleviate the symptoms you are describing? :shrug

...linear pedal mapping option under...
Forum: Infiniti Q50 Q60 VR30DDTT 12-17-2019, 07:19 PM
Replies: 8
Views: 2,276
Posted By jrobohm
My JB4 w/ WMI is working well with some test code...

My JB4 w/ WMI is working well with some test code and wiring into the Flex Fuel Sensor. Terry has some polishing to do on the ‘digital filtering’ to smooth out the E85 readings of the sensor feed...
Forum: Infiniti Q50 Q60 VR30DDTT 12-17-2019, 04:07 PM
Replies: 1
Views: 117
Posted By jrobohm
VR30 LPFP

Terry or Dave: What have been the pros/cons you have seen with an upgraded LPFP and stock tunes (with a JB4?)
Forum: Infiniti Q50 Q60 VR30DDTT 11-30-2019, 06:59 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
+1

+1
Forum: Infiniti Q50 Q60 VR30DDTT 11-29-2019, 08:51 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Above my knowledge but a Google search says those...

Above my knowledge but a Google search says those codes are Bank 1 & Bank 2 timing issue... the JB4 can clear those errors as well. Have you tried clearing the codes and seeing if the engine returns...
Forum: Infiniti Q50 Q60 VR30DDTT 11-29-2019, 03:22 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Pulling the JB4 takes some effort so I would...

Pulling the JB4 takes some effort so I would start with reading any codes 1st.
Forum: Infiniti Q50 Q60 VR30DDTT 11-29-2019, 02:58 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Have you used the JB4 app to read any codes? May...

Have you used the JB4 app to read any codes? May sound obvious but does removing the JB4 harness and returning wiring to stock resolve the limp mode? The harness pins can be troublesome and reseating...
Forum: Infiniti Q50 Q60 VR30DDTT 11-24-2019, 12:31 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Look at the 1st post for details. The firmware...

Look at the 1st post for details. The firmware for JB1 and JB4 are NOT interchangeable - so double check before flashing. JB1 firmware has been at a stable release for awhile.
Forum: Infiniti Q50 Q60 VR30DDTT 11-21-2019, 11:38 AM
Replies: 335
Views: 14,761
Posted By jrobohm
Nice setup. With the OCC on my car and I do see a...

Nice setup. With the OCC on my car and I do see a fair amount of oil/gas in there - so it is working. As for the PM5’s - I really couldn’t see much of a spray pattern delta as compared to the BM5’s....
Forum: Infiniti Q50 Q60 VR30DDTT 11-21-2019, 10:06 AM
Replies: 335
Views: 14,761
Posted By jrobohm
Congrats on the install! The VR30 loves WMI for...

Congrats on the install! The VR30 loves WMI for sure. What else have you done on your car? What kind of fuel do you have in your area? Did you go with the BM5’s for nozzles?
Forum: Infiniti Q50 Q60 VR30DDTT 11-19-2019, 11:39 AM
Replies: 335
Views: 14,761
Posted By jrobohm
Flex Fuel Kit installed and wired to JB4 - fun on...

Flex Fuel Kit installed and wired to JB4 - fun on ramp pull from 2nd gear log attached. Running with a Boost Additive of 79 in hopes of better timing numbers over my BA runs at 80.

Thoughts /...
Forum: Infiniti Q50 Q60 VR30DDTT 11-19-2019, 10:40 AM
Replies: 4,994
Views: 551,794
Posted By jrobohm
ExtremeContact DWS 06 - 255/40-19’s all around

ExtremeContact DWS 06 - 255/40-19’s all around
Forum: Infiniti Q50 Q60 VR30DDTT 11-18-2019, 10:39 AM
Replies: 335
Views: 14,761
Posted By jrobohm
https://prometh.com/collections/nozzles/products/8...

https://prometh.com/collections/nozzles/products/8-0-gph-63-cc-per-minute-water-methanol-injection-nozzle?variant=18900548911173
Forum: Infiniti Q50 Q60 VR30DDTT 11-15-2019, 04:31 PM
Replies: 335
Views: 14,761
Posted By jrobohm
Running WMI (50/50) + E25 fuel should have my...

Running WMI (50/50) + E25 fuel should have my effective octane level up in the mid/high 90’s I would think?!? Boy would it be nice to have access to the knock sensor data to see if in fact timing is...
Forum: Infiniti Q50 Q60 VR30DDTT 11-15-2019, 11:46 AM
Replies: 335
Views: 14,761
Posted By jrobohm
Up a hill dig pull - I agree - I’m going to drop...

Up a hill dig pull - I agree - I’m going to drop my Boost Add number back a tenth and retry that awkward location pull.
Forum: Infiniti Q50 Q60 VR30DDTT 11-15-2019, 10:55 AM
Replies: 335
Views: 14,761
Posted By jrobohm
Here are a couple of recent logs showing the...

Here are a couple of recent logs showing the typical Meth “square wave” - with the upgraded LPFP my pulls at lower RPM feel ‘stronger’ - not sure where to validate that assertion in logs but there it...
Forum: Infiniti Q50 Q60 VR30DDTT 11-14-2019, 10:36 AM
Replies: 335
Views: 14,761
Posted By jrobohm
That is odd... never seen that in my logs -...

That is odd... never seen that in my logs - typically it ramps to 100 and holds there until I’m off the pedal. Solar flare activity ?!?
Forum: Infiniti Q50 Q60 VR30DDTT 11-13-2019, 07:20 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
P0448 code is stored when the powertrain control...

P0448 code is stored when the powertrain control module (PCM) detects that the circuit for the evaporative emission control system's vent has shorted, or that the valve for this system is stuck in...
Forum: Infiniti Q50 Q60 VR30DDTT 11-12-2019, 11:20 AM
Replies: 4,994
Views: 551,794
Posted By jrobohm
I am definitely angling towards the JB4/WMI +...

I am definitely angling towards the JB4/WMI + EcuTek (Flex fuel tune.) AMS Flex Fuel Kit installed and 0-5v cable wired into ECU harness & I am going to complete the install by tapping that into the...
Forum: Infiniti Q50 Q60 VR30DDTT 11-06-2019, 08:23 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Inlets - Check post #3231 for a write up

Inlets - Check post #3231 for a write up
Forum: Infiniti Q50 Q60 VR30DDTT 11-05-2019, 09:12 AM
Replies: 4,994
Views: 551,794
Posted By jrobohm
For what’s its worth - I have had the BMS CAI w/...

For what’s its worth - I have had the BMS CAI w/ inlets from nearly day one they were available. To date - zero drivability issues unlike a number of fellow VR30 folks who tried the Stillen CAI moons...
Forum: Infiniti Q50 Q60 VR30DDTT 11-04-2019, 12:50 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
Amen - Flex Fuel Kit and LPFP are being installed...

Amen - Flex Fuel Kit and LPFP are being installed this Friday. Depending on time and weather I might do a fall weather dyno to see where I am at. E-Stacking has been a concern for me hence the Flex...
Forum: Infiniti Q50 Q60 VR30DDTT 11-01-2019, 07:29 PM
Replies: 4,994
Views: 551,794
Posted By jrobohm
BMS WMI for the WIN !! :happy

BMS WMI for the WIN !! :happy
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