I don't always tune n/a cars, but when i do, i make sure they belch black smoke - Page 5 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 01-02-2014, 01:31 AM   #81
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Guys My favorite shows back on!!!!

Someone posted a datalog from a FI 2.5 motor TDR did.


I believe the worry is so much timing early, yet showing no KR, so now we have Moto saying TDR is desensitizing knock sensors, but TDR says no and sends the latest tunes file to a 3rd part who says there indeed is no change to knock sensitivity,but Moto says it is an incomplete file.

What do you make of it.
Jay (TDR) Is A True Gentleman And A Scholar - MX-5 Miata Forum
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Old 01-02-2014, 08:37 AM   #82
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I like how the timing and boost both taper off at the top of the rev range on that log.
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Old 01-02-2014, 10:57 AM   #83
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I've seen worse logs than the above.
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Old 01-02-2014, 01:16 PM   #84
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Quote:
Originally Posted by Braineack View Post
I've seen worse logs than the above.
Given the track record of this tuner I was expecting much worse too. The irony is the log for the boosted motor is leaner than the log for the N/A motor.
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Old 01-02-2014, 01:27 PM   #85
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what's the CR on that 2.5L? I ran 16 of timing at 15psi on my 1.6L...
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Old 01-02-2014, 01:42 PM   #86
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Quote:
Originally Posted by Braineack View Post
what's the CR on that 2.5L? I ran 16 of timing at 15psi on my 1.6L...
I'm assuming the combustion chamber is about a billion times better designed.
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Old 02-15-2014, 11:26 AM   #87
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Alternatively, tune it yourself: Openflash tablet arrives
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Old 02-15-2014, 12:49 PM   #88
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Quote:
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I'm assuming the combustion chamber is about a billion times better designed.
1 billion more timing?

Billionaire suggests rich should get more votes | MSNBC
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Old 02-15-2014, 08:38 PM   #89
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Last time i got in a confrontation with that guy about his expertise this is what i got

Private 11th September 2013 23:25 Vendor bashing Gary J Fischman
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Old 02-16-2014, 04:32 AM   #90
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Favourite quote: "does the 2.5 feel noticeably slower revving than the 2.0?"

Better install a 1.6L to get that sporty revving feeling again.
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Old 02-16-2014, 04:55 AM   #91
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I know this is delayed, but just wanted to say the reason the AFR is so rich on the stock tune IS to cool the cats. The evaporative cooling of the extra fuel lowers EGTs overall, a 1 point drop is enough for almost 100C drop in EGT.

It bugs me to no end at work coming from race cars, we run the tundra's engine at around 11:1 under power performance just to keep the cats cool.

Honestly you need to be careful, pulling AFR back to 14:1 on a newer car can cause cat over temp pretty easy. If you kept the catalyst temp estimation and compensation maps active through you might be OK, but it would start richening up your tune quickly.
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Old 02-16-2014, 02:46 PM   #92
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Quote:
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I don't always tune n/a cars, but when i do, i make sure they belch black smoke-1898068_10100837813212961_26560915_n.jpg  
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Old 02-24-2014, 09:35 AM   #93
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I can't imagine trying to tune a car with such slow response time on the WB.
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Old 02-24-2014, 11:33 AM   #94
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"You never want to see AFR of 11."

*gets on it*

*AFRs in low 11s.*
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