Emira JB4 Tuning Now Available for I4 & V6 Cars!

[JKP]

So subjectively judged, did it feel like the proclaimed power gains? I take any improvement over current delivery, just curious about some feedback. Out of town now, will install mine Mo/Tue.

It's hard to say because I only ran it up to the local pub and back, where the max speed limit is 40, so I had keep it to short bursts and shut the fun down by 80 . I trust the dyno results, and imagine the power will be even more apparent at speed via roll-on vs. off the line. For me, this is where it matters as I never hard launch the car anyway. I'll get it out again today on the freeway and give another update later. What bothers me most, and this is not something the tune caused, is that the digital tach is slow to response vs actual RPMs, and I think this may now make it even more so. The other thing I was going to test is the digital HP display in the dash to see if it shows higher than 400hp now that the tune is in. Again, something I'll check on the freeway later today.

 

[FlyNavy01]

If you want to put driveshafts under the most stress, you put them in a transversely mounted, effectively rear-engined vehicle like the Emira. They're already a weak point in stock form just from a physics standpoint with the 61/39 weight distribution and awkward mounting angles. Add an increased rearward weight shift under a hard launch with the extra power and you're asking for trouble sadly.

I see this as an excellent opportunity for some aftermarket (possibly carbon?) versions in the future. Decreased rotating mass and increased torsional strength would give me a huge peace of mind if I was running a tune.