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10-29-2020, 11:23 AM | #1 |
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Do I need a new tune after replacing engine?
I spun a bearing and replaced my 2013 motor with a low mileage motor from a 2016 brz that was wrecked.
I was at 100k miles on the blown motor and the newer motor has around 30k miles. The car is turbo'd. Will I need to get a new tune once I get everything reinstalled? Will I need to change anything else such as the engine code for the tune? Also, I am considering/planning switching from a crawford AOS to a dual VTA catch can set up. Will this affect the tune in any way? Thanks for the help! |
10-29-2020, 12:02 PM | #2 |
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No car is exactly the same. It's always a good idea to retune after a major change. While this SHOULD be 1:1, a custom tune is tailored for your car, (mods, exactly how much fuel it's pushing, exact compression numbers, AFR's, everything.) They CAN BE significantly impacted if the old motor was low on compression and the new one isn't, or the new engine is particularly healthy.
Keep an eye on your fuel trims and AFR's and if all looks consistent you should be okay. I would always recommend you have your tuner check logs at least once after a major component replacement like this if your numbers aren't lining up PERFECTLY to what they were before.
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10-29-2020, 12:24 PM | #3 | |
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Quote:
I was under the assumption that I would need a whole new tune, so this is music to my ears. I will be sure and datalog once I get everything back up and running just to be sure. |
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The Following User Says Thank You to paintdude258 For This Useful Post: | CSG Mike (12-10-2020) |
12-10-2020, 10:21 AM | #4 |
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No prob, how's it running?
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SOLD: 2015 WRB BRZ Limited ('02 WRX BBS, S-04's, Stoptech Sport pads, MXP SP, AVO drop in filter, Mishimoto Intake tube, decatted header, OFT 93 Stage 2 EL Tune, Kartboy rear shifter bushing, Whiteline transmission and subframe lockout bushings, ST Coilovers, SPC Camber bolts w/smaller crash bolt, SPC LCA's & SPC Toe Arm bushings, Red TOMs, TRD Wing.)
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