Question about a tune after some mods

Tech discussions on the L77 6.0L V8.
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bluethunder
Posts: 124
Joined: Tue Jan 10, 2017 6:43 pm

Question about a tune after some mods

Post by bluethunder » Sun May 21, 2017 2:03 am

I plan to rebuild my L77 later in the year, but for now would like to add a CAI and a axle back muffler
(Solo) system. Does it need a retune with those two items?? I hate to dump money into a short lived set-up as like I say the motor will be redone without the DOD set-up later this year.

Thanks

Silversled
Posts: 263
Joined: Fri Aug 12, 2016 12:13 pm
Location: Tampa, FL

Re: Question about a tune after some mods

Post by Silversled » Sun May 21, 2017 3:05 am

You will not need a tune for the axle back since everything that changes is downstream of the second O2 sensor. The CAI will most likely need a tune. Some people have gotten lucky but generally CAI's will throw a MIL.
2014 Chevrolet Caprice PPV
2014 Chevrolet Stingray Z51
2016 AMG C63
2015 BMW X5 iDrive 50i

indianajoe
Posts: 152
Joined: Tue Jul 12, 2016 2:12 am
Location: South Bend, IN

Re: Question about a tune after some mods

Post by indianajoe » Sun May 21, 2017 12:34 pm

you shouldn't need a tune for a CAi. I've had two and never had a problem

Silversled
Posts: 263
Joined: Fri Aug 12, 2016 12:13 pm
Location: Tampa, FL

Re: Question about a tune after some mods

Post by Silversled » Sun May 21, 2017 1:26 pm

indianajoe wrote:you shouldn't need a tune for a CAi. I've had two and never had a problem
indianajoe,
Have you logged fuel trims on your car after installation of a CAI and what types have you installed? Just wondering. I've seen a mixed bag and it depends on the design of the CAI and style.
2014 Chevrolet Caprice PPV
2014 Chevrolet Stingray Z51
2016 AMG C63
2015 BMW X5 iDrive 50i

indianajoe
Posts: 152
Joined: Tue Jul 12, 2016 2:12 am
Location: South Bend, IN

Re: Question about a tune after some mods

Post by indianajoe » Mon May 22, 2017 2:24 am

havent done any datalogging, but I've had a vararam and vcm otr intakes and it didn't throw a code

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