Do you supply JB4 as well as tuning it?

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godzilla
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Do you supply JB4 as well as tuning it?

Post by godzilla » Sat Nov 04, 2017 8:08 am

Hi Jason, I’ve always gone the custom flash route before (Cobb then Ecutek via Litchfield on my R35 GT-R), but it appears the JB4 works really well, and crucially, safely, on the M140i. Do you supply and fit as well as tune?
Getting Litchfield to fit a full Akrapovic system Inc sport cat downpipe, and looking at intake kits. Thanks, David Yu


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Re: Do you supply JB4 as well as tuning it?

Post by jason@bwchiptune » Sat Nov 04, 2017 9:55 am

I have been offered to be a dealer for them but not taken them up on it as yet
If you do need one there are many companies selling them


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Re: Do you supply JB4 as well as tuning it?

Post by sootyvrs » Sat Nov 04, 2017 10:31 am

The JB4 has generic maps that you can try first godzilla.. Map 3 or 5 are probably suitable for cars with supporting mods (downpipe/exhaust/intake etc.)

I personally would give these a try first using high quality fuel and then decide if you need perhaps a custom map 6 but I read that there is a an ECU fuel cap on the B58 so you may not achive any more power without going for a meths kit using map 7 or going to other supporting mods..

You may find that upping the power too much may also highlight more the chassis shortcomings :(
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Re: Do you supply JB4 as well as tuning it?

Post by jason@bwchiptune » Wed Dec 20, 2017 12:43 am

Image

M140 with jb4 fitted and tested on our dyno dynamics rolling


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