Recomended settings after engine swap

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Raysz71
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Joined: Thu Feb 27, 2020 10:54 am

Recomended settings after engine swap

Post by Raysz71 »

I have a 2009 Tahoe that already is tuned with the i2. I am swapping out the 5.3 LMG for a 6.2 L9H. I am wondering what settings I should adjust just to get this running. Plan is to get it running well enough to get a baseline to send to Lew for a proper tune.

Details:
going out: Stock 5.3 Flex fuel, non VVT, with Tune, DOD disabled.
incoming: 6.2 Flex fuel, Stage 2 truck cam, Non VVT (I converted it from VVT) Non DOD.

I am using the PCM from the 5.3.

I assume that I will need to play with the fueling side of the tune. Will it run with the existing tune, but just not well?

thanks,
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mikel
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Re: Recomended settings after engine swap

Post by mikel »

I have no idea what a stage 2 truck cam is....we talking summit cams here maybe?

Best bet is to ask others who have installed that cam whether it would run on the stock tune or not.
if not, may not be too much you can do to get it running safely with just the handheld, may need custom tune asap.
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Raysz71
Posts: 5
Joined: Thu Feb 27, 2020 10:54 am

Re: Recomended settings after engine swap

Post by Raysz71 »

Here is the cam info if that helps.

Cam Style: Hydraulic roller tappet

Basic Operating RPM Range: Idle-6,000

Intake Duration at 050 inch Lift: 212

Exhaust Duration at 050 inch Lift: 220

Advertised Intake Duration: 267

Advertised Exhaust Duration: 275

Intake Valve Lift with Factory Rocker Arm Ratio: 0.502 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.502 in.

Lobe Separation (degrees): 117

Camshaft Gear Attachment: 3-bolt
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mikel
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Re: Recomended settings after engine swap

Post by mikel »

thats pretty mild and I would half expect it to idle with a stock cal on a 6.2
Mike Litsch
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Raysz71
Posts: 5
Joined: Thu Feb 27, 2020 10:54 am

Re: Recomended settings after engine swap

Post by Raysz71 »

I figured the mild cam wouldn't be much of a problem. My bigger concern is the current tune is for a 5.3, and now going to the 6.2 with that cam. Do you think it will start and run with it or will i have to make a few adjustments first?

DOD is already disabled, the truck never had VVT and I removed it from the 6.2.

Thanks for the info.
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mikel
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Re: Recomended settings after engine swap

Post by mikel »

im guessing it will run.
Mike Litsch
DiabloSport Brand Manager
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561-908-0040
M-F 8:00 AM to 5:00 PM EST

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06MonteSS
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Re: Recomended settings after engine swap

Post by 06MonteSS »

need to take it to a shop to get tuned... I won't touch a swap setup, they're a pain in the ass... so you need to take that swap setup to a shop to get tuned
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