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Showing results 1 to 25 of 100 Search: Posts Made By: JCB
Forum: Infiniti Q50 Q60 VR30DDTT 05-19-2022, 11:16 AM
Replies: 7
Views: 121
Posted By JCB
It is better to raise octane using E-30 or E85...

It is better to raise octane using E-30 or E85 mixed into regular pump gas. I am not sure about the effectiveness of octane boosters out of a bottle. Also I know some additives can damage the fuel...
Forum: Infiniti Q50 Q60 VR30DDTT 05-19-2022, 09:24 AM
Replies: 7
Views: 121
Posted By JCB
Sorry to say, but your timing values look...

Sorry to say, but your timing values look horrible and indicate your car is experiencing pre-detonation (knock). This is very bad for the engine so don't do any more pulls until you get it figured...
Forum: Infiniti Q50 Q60 VR30DDTT 05-18-2022, 01:47 PM
Replies: 7
Views: 121
Posted By JCB
I was just joking, but the logs were indeed...

I was just joking, but the logs were indeed bizarre. Post a fresh one. Don't switch maps...just a good pull or 2 so it can be reviewed. Map 1 is where you should start with a Red Sport. Depending...
Forum: Infiniti Q50 Q60 VR30DDTT 05-18-2022, 01:41 PM
Replies: 12
Views: 506
Posted By JCB
That is a pretty aggressive amount of boost to...

That is a pretty aggressive amount of boost to run on pump gas and being new to this. Can you post a log to see how it looks? As you are learning, there is more to consider than just turbo...
Forum: Infiniti Q50 Q60 VR30DDTT 05-18-2022, 10:01 AM
Replies: 12
Views: 506
Posted By JCB
No problem...enjoy the car and the extra power...

No problem...enjoy the car and the extra power you are about to unlock!
Forum: Infiniti Q50 Q60 VR30DDTT 05-18-2022, 05:28 AM
Replies: 7
Views: 121
Posted By JCB
Dude, are you messing with us? Logs are...

Dude, are you messing with us? Logs are bizzarre...Map8 pulls, Map 0 Pulls. ECUpsi red sport numbers mixed with non RS numbers. I see some map 2 full throttle, but ECU psi indicates its from a non...
Forum: Infiniti Q50 Q60 VR30DDTT 05-17-2022, 09:23 AM
Replies: 12
Views: 506
Posted By JCB
Not familiar with it, but here is what I look...

Not familiar with it, but here is what I look for.

All below is at FULL THROTTLE

Ign1 field indicates spark advance. Healthy car should have a nice cup shaped curve to it...in terms of...
Forum: Infiniti Q50 Q60 VR30DDTT 05-14-2022, 07:29 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
JB4 without fuel wires installed/activated has no...

JB4 without fuel wires installed/activated has no way to influence fueling. Even if the fuel wires were installed and malfunctioning to call for a very lean AFR it would show in the log under the...
Forum: Infiniti Q50 Q60 VR30DDTT 05-14-2022, 07:19 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
If you are happy with the boost level at map 2, I...

If you are happy with the boost level at map 2, I would leave it there. The car's ECU AND the JB4 both taper at high RPM, resulting in sufficient taper. No need to do anything further in Map 6. ...
Forum: Infiniti Q50 Q60 VR30DDTT 05-14-2022, 07:12 AM
Replies: 11
Views: 2,633
Posted By JCB
I would back it down to 6.5 at 5000 RPM. I am...

I would back it down to 6.5 at 5000 RPM. I am seeing very low timing values (Ign1 field) right at that RPM level. Also your trims are maxed (reading of 44 on our platform). Not alarming because...
Forum: Infiniti Q50 Q60 VR30DDTT 05-12-2022, 05:52 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Did the tech confirm the condition but could not...

Did the tech confirm the condition but could not diagnose the problem or are they claiming there is no problem with the car? Are you still under powertrain warranty?
Forum: Infiniti Q50 Q60 VR30DDTT 05-10-2022, 09:41 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Its no problem...I enjoy helping and know how it...

Its no problem...I enjoy helping and know how it felt when I started! It can get lonely on this board! Are you on the Q50 forum as well? You should join if not on it already.

If that controller...
Forum: Infiniti Q50 Q60 VR30DDTT 05-09-2022, 09:49 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Nope...tuners are able to program that type of...

Nope...tuners are able to program that type of response via software to the ECU without the add-on. What you see in the video is what you feel when you have one activated on the most aggressive...
Forum: Infiniti Q50 Q60 VR30DDTT 05-09-2022, 08:26 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Here is a thread about them on the Q50 forum. I...

Here is a thread about them on the Q50 forum. I use the same one DDNSpider used at the time (see his post vial link below) and very happy with it.

Pedal Tuner BF Sales - 22% off PedalBox; 30% off...
Forum: Infiniti Q50 Q60 VR30DDTT 05-09-2022, 05:36 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Nice! Regarding turbo lag, it can't be...

Nice! Regarding turbo lag, it can't be completely avoided, but half of that perceived turbo lag is actually slow accelerator response. A pedal tuner easily fixes that problem. If you have the...
Forum: Infiniti Q50 Q60 VR30DDTT 05-08-2022, 07:10 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Good to hear you got everything installed and...

Good to hear you got everything installed and your firmware updated!

2. Concerning the user adjustment in the app, I changed the default FF/wastegate to 50 from default 60 as per the 1st page of...
Forum: Infiniti Q50 Q60 VR30DDTT 05-08-2022, 07:03 AM
Replies: 3
Views: 199
Posted By JCB
You need to find a friend with a smaller hand. ...

You need to find a friend with a smaller hand. Only way I have seen it done is right there. A couple of guys found a guy on ebay who was selling a plug for the fuel wires but it had very mixed...
Forum: Infiniti Q50 Q60 VR30DDTT 05-08-2022, 06:55 AM
Replies: 11
Views: 2,633
Posted By JCB
Looks pretty dialed in....you could try adding +1...

Looks pretty dialed in....you could try adding +1 more psi and see how she does...also you can do your pull in 3rd gear so your not moving so fast.
Forum: Infiniti Q50 Q60 VR30DDTT 05-07-2022, 08:31 AM
Replies: 6
Views: 219
Posted By JCB
Optional fuel control wires: Dyno Test:...

Optional fuel control wires:

Dyno Test: N54Tech.com - International Turbo Racing Discussion - View Single Post - Infiniti Q50 3.0t VR30DDTT Red Sport and Silver Sport BMS Stage1 JB4

Cliff...
Forum: Infiniti Q50 Q60 VR30DDTT 05-07-2022, 07:33 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Yes, that is for any non-RS with the VR30 motor. ...

Yes, that is for any non-RS with the VR30 motor. Link below is to a great article about the engine and turbos specifically. It has the RS numbers in a table. It would not let me paste it here. ...
Forum: Infiniti Q50 Q60 VR30DDTT 05-06-2022, 12:14 PM
Replies: 6,305
Views: 1,110,853
Posted By JCB
RPM PSI 2500 2.5 2750 5 3000 5.5 3250 6 ...

RPM PSI
2500 2.5
2750 5
3000 5.5
3250 6
3500 6.5
3750 7
4000 7.2
4250 8
4500 8.5
Forum: Infiniti Q50 Q60 VR30DDTT 05-06-2022, 08:16 AM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Awesome! Yeah I am not looking forward to...

Awesome! Yeah I am not looking forward to changing the plugs! I'm at 63k miles currently.

I think I just got my car dialed in with the WMI kit now. Adding 9PSI on map 6 and my timing and AFR...
Forum: Infiniti Q50 Q60 VR30DDTT 05-05-2022, 03:56 PM
Replies: 6,305
Views: 1,110,853
Posted By JCB
DR JJ - You are fine with the stock plugs. I...

DR JJ - You are fine with the stock plugs. I have not heard anyone with tune or JB4 talking about upgrading spark plugs. Plugs should be good for 100k miles or more as they are iridium tipped.
Forum: Infiniti Q50 Q60 VR30DDTT 05-04-2022, 01:07 PM
Replies: 6
Views: 219
Posted By JCB
To me it looks like you are at your limit on...

To me it looks like you are at your limit on adding boost. While you don't have big timing drops, the values are pretty low (ign1 field). If you try moving boost up from here, do it in 1/2 pound...
Forum: Infiniti Q50 Q60 VR30DDTT 05-03-2022, 01:02 PM
Replies: 6,305
Views: 1,110,853
Posted By JCB
Stick with the stock maps. No reason you can't...

Stick with the stock maps. No reason you can't run map 3 or better with good quality 93 octane fuel. I ran map 5 for about 18 months on my 2018 Luxe and 93 Octane fuel. I found that it is about...
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