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Arron280 Arron280 is offline
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Default Jb1 Dyno today map 1, any advice? - 06-28-2019, 06:22 AM

Installed my jb1 yesterday, felt noticeably faster. Logged via obd11 and was getting quite bad timing pull, cylinder 1 was 7 degrees, cylinder 2 was 5, cylinder 3 was 4.5 and cylinder 4 was 6 degrees, so pretty bad.

Had it dynod today, weather was around 20c outside, according to the graph the intake temps were 22c, car made 320bhp and 325ibft of torque on a Dyno dynamic Dyno. Car is a cupra 280 with an r600 intake, ramair turbo elbow and hose and with no silencers. The tuner told me the car is also running very lean, air to fuel ratio according to the graph is 14.7.

I did a 60-100 run yesterday and managed a verified 5.89. The car is on map 1 as I don’t have a data cable, what figures have others got with a jb1 and is there any room for improvement with map6, thanks.
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Payam @ BMS's Avatar
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Default 06-28-2019, 09:05 AM

What fuel are you using? I would use higher octane fuel if you're having that many timing pulls.


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Arron280 Arron280 is offline
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Default 06-28-2019, 09:27 AM

Tesco momentum pal so 99
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Default 06-28-2019, 10:15 AM

If you're doing custom tuning a data cable and ideally a JB4 would be ideal, so you can see what is really going on with it. But George is the expert on VWs so he can chime in here with addl advice for you.


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Arron280 Arron280 is offline
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Default 06-28-2019, 11:01 AM

I’m going stage 2 next year so I bought the jb1 as it was cheap, I don’t know where the timing pull is coming from, the weather has been hot etc. The mapper who dynod my car claimed that it was running way too lean yet the afr ratio was 14.7:1 which from what I’ve found on the golf r forum is that, that’s the normal ratio. I ran the car last night with v power and it felt insanely quick, I did a 60-100 pull in 5.9 and my friend with a custom ecu and tcu map running 360 only managed to beat it by 0.3 seconds so surely my cars running more than 320.
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Arron280 Arron280 is offline
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Default 06-28-2019, 11:02 AM

If i want to test my car stock, do I have to unplug every single connection I’ve plugged in or can I just unplug any single one?
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Default 06-29-2019, 06:42 PM

Quote:
Originally Posted by Arron280
If i want to test my car stock, do I have to unplug every single connection Iíve plugged in or can I just unplug any single one?
Got you via email.


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