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Old 12-02-2013, 08:23 AM   #6437
mikalem
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Quote:
Originally Posted by Fast_Freddy View Post
Thanks for offering something more substantive than simply accusing JV of being the anti-Christ. I can't agree or disagree with your critique because I just don't have enough firsthand experience with his and others FA20 tunes. I have 93 available everywhere I go and I'll probably stick with JV until I have good reason not to.




Very safe IMO since it's just a stage 2 header tune. I'd worry more about the KC and AM if I was FI. How accurate is the knock detection plug-in for Torque? I could log that but I don't have a ECUTek cable. I had my car dyno tuned at a local shop.
I also have had the chance to try out multiple vendors and I can say my experience with Johns tune is similar - his base 93 map just seems too aggressive - I have seen cases where just at normal highway cruise the car would log a series of knock events, just negative 1 sometimes, but the AM would fall from 1 down to .4 and stay there for a bit. Since he has the AM set to 1 by default the car constantly is fighting to try and bring it up. John seemed to want to blame it on bad gas, however other tunes on the same tank didn't display the same problem so I don't really think that's the case and I can just conclude that his tune is too aggressive for a daily driver NA car.

Another note - torque's knock detector isn't all that accurate compared to the KC/AM values recorded by EcuTek - if you are going to continue running Johns tune I would suggest getting a cable to do some logging of your normal day to day operation, just to verify you are not having the same problems.

I wanted to give John the benefit of the doubt, mostly because I spent a good deal of money with him, but hindsight being 20/20 I can't say I would use his services again, there are other better cheaper options available. YMMV.

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