Aftermarket ECU for a Naturally Aspirated VQ35DE?
#1
Aftermarket ECU for a Naturally Aspirated VQ35DE?
Hey guys,
I know the typical route is to tune through an uprev pro tuner, but I've already attempted to tune through the "best" uprev tuner in my area with horrible results. Immediately after the tune I noticed a severe drop in power. I was able to recover this lost power through the installation of a few breather mods, but now I'm worried about the quality of my tune. My mods are: all motordyne bolt ons, stillen CAI.
1. Would you guys suggest an aftermarket ECU? This way I could tune through many great tuners in my area
2. I've heard that our stock ECU will adjust to WOT situations as well as gently driving. Would an aftermarket ECU adjust based off of your driving style?
3. Would an aftermarket ECU affect the longevity of the motor?
Thanks
I know the typical route is to tune through an uprev pro tuner, but I've already attempted to tune through the "best" uprev tuner in my area with horrible results. Immediately after the tune I noticed a severe drop in power. I was able to recover this lost power through the installation of a few breather mods, but now I'm worried about the quality of my tune. My mods are: all motordyne bolt ons, stillen CAI.
1. Would you guys suggest an aftermarket ECU? This way I could tune through many great tuners in my area
2. I've heard that our stock ECU will adjust to WOT situations as well as gently driving. Would an aftermarket ECU adjust based off of your driving style?
3. Would an aftermarket ECU affect the longevity of the motor?
Thanks
#3
#4
Premier Member
iTrader: (114)
I tune cars every day remotely with datalogs over email, getting physically strapped up to the dyno isn't the only way to get it done.
I wouldn't recommend going with a full standalone for a basic bolt on setup, you're going to be in it a ton of money (several thousand) by the time you're done, you'll still need the uprev reflash to control stuff like the rev and speed limits, DTC codes, and electronic throttle, also does the new tuner you're thinking of switching to have any experience with a G35?
I wouldn't recommend going with a full standalone for a basic bolt on setup, you're going to be in it a ton of money (several thousand) by the time you're done, you'll still need the uprev reflash to control stuff like the rev and speed limits, DTC codes, and electronic throttle, also does the new tuner you're thinking of switching to have any experience with a G35?
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seymore4 (01-31-2014)
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#15
Premier Member
iTrader: (114)
You just need to get your hands on an Uprev cable and then you can datalog and reflash the ECU yourself. Basically you just drive around and record datalogs of how the cars running, then we use that to adjust the tune, much like how its done on the dyno.
Since you've already been reflashed best bet would be to keep your eyes open for a used cipher cable in the classifieds ($150ish), The only ones you can get without an Osiris license new are the tuner cables. (Uprev quit selling the cipher cables new last year).
Since you've already been reflashed best bet would be to keep your eyes open for a used cipher cable in the classifieds ($150ish), The only ones you can get without an Osiris license new are the tuner cables. (Uprev quit selling the cipher cables new last year).
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Stock-Ish (09-20-2020)