11-09-2020, 07:41 AM | #1 |
Drives: 2017 RS CAMARO V6 Join Date: Jun 2018
Location: MEMPHIS
Posts: 135
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3.27 DIFFERENTIAL AND HP TUNERS CALIBRATION
My 3 year warranty finally expired this month, so I did this install yesterday. The donor car was a 2018 turbo Camaro with 18000 miles on it, and I paid $550 for the differential on ebay. . The part number on the stamp is 142003195 but GM parts direct shows 84371223. Also, The 2.77 and 3.27 have identical cases. First pic is the old one removed, and second pic is new one installed.
This is a direct fit for the A8 because it is non-LSD. All axels and drive shafts are a perfect fit. Simple unbolt and drop the old one and bolt the new one. I already have HP tuners and did a file calibration to the final gear ratio from 2.77 to 3.27. Its amazing the difference in acceleration and shifting that this makes. This has to be one of the best mods that you can do for the 3.6 engine. Its a shame that GM did not equip our cars with this in stock form! It accelerates faster in all RPMS and I have probably knocked a couple of tenths from my 0 to 60. I will see what my acceleration timer APP shows later on today. Best I ever done prior to the mod was 5.09 seconds so I will see if I can beat this. |
11-09-2020, 03:18 PM | #2 |
Drives: 2018 Camaro V6/RS Join Date: Nov 2018
Location: MI
Posts: 1,596
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I'll be curious on your 0-60 since it will now have to shift into 3rd as well
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11-10-2020, 10:22 AM | #3 | |
Drives: 2017 RS CAMARO V6 Join Date: Jun 2018
Location: MEMPHIS
Posts: 135
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New tires are on the horizon, LOL! |
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11-10-2020, 10:32 AM | #4 |
Drives: 2018 Camaro V6/RS Join Date: Nov 2018
Location: MI
Posts: 1,596
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Makes sense. Even if traction was the same it might not be any faster 0-60 due to the extra shift. Regardless like you said it pulls harder in every gear, and will accelerate faster overall. Due to the peaky powerband of this V6 I bet it feels like you gained 50 hp lol
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11-10-2020, 11:37 AM | #5 | |
Drives: 2017 RS CAMARO V6 Join Date: Jun 2018
Location: MEMPHIS
Posts: 135
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Quote:
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11-10-2020, 11:55 AM | #6 |
Drives: 2018 Camaro V6/RS Join Date: Nov 2018
Location: MI
Posts: 1,596
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No what I mean is it will have to shift into 3rd before 60 if the shift RPM remains the same. With the stock 2.77 gear and height tire mine shifts at about 65 or so at 7000 rpm. I assume with the 3.27 it would be before 60? If so the stock 2.77 might do better 0-60 since it will be at peak power and won't have to make the shift into 3rd. Make sense?
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11-10-2020, 12:37 PM | #7 | |
Drives: 2017 RS CAMARO V6 Join Date: Jun 2018
Location: MEMPHIS
Posts: 135
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Quote:
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11-10-2020, 12:51 PM | #8 |
Drives: 2018 Camaro V6/RS Join Date: Nov 2018
Location: MI
Posts: 1,596
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No problem man, glad to help. One way to tell would be to find one of those online gear calculators. There may even be that info on this site, I'm not sure. This way you tell the difference before making any changes. But to be honest I would never base the decision on a 0-60 run only. There are so many other positives to be had with more aggressive gearing
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12-05-2020, 08:31 PM | #9 |
Drives: 22 Convertible V8 LT1 Join Date: Feb 2019
Location: Jensen Beach, Florida
Posts: 219
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Can this be done to the manual v6?
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12-12-2020, 08:59 AM | #10 |
Drives: 16 2LT/RS Hy-Blue/manual/NPP/6PBrem Join Date: Oct 2016
Location: Slidell Louisiana
Posts: 91
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12-12-2020, 03:56 PM | #11 |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
Posts: 2,343
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The 3.27 rear should make the car accelerate to 60 quicker and thru the 1/4 mile quicker by at least 2 tenths. The trans should shift at the same RPM wot. Have the trans tuned to allow all wot shifts at 6800 to 7k and have the shop bump the fuel shut of to 7200 rpm. I had a 2016 V6 manual with the 3.27 rear, the fuel shut off was right at 7k and I always had to shift 6500 to 6700 to stay off the fuel shut off.
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12-12-2020, 03:59 PM | #12 |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
Posts: 2,343
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12-18-2020, 06:05 PM | #13 |
Drives: 18 LS/1LE V6 Join Date: Oct 2017
Location: Utah
Posts: 164
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12-19-2020, 05:09 PM | #14 |
Long hauler
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Here’s the chart I made to help before
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