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Recomended settings after engine swap

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Moderator: sohfast94

Post Tue Aug 04, 2020 2:51 pm

Posts: 5
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,


Posts: 56616
Location: DiabloSport World Headquarters

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.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST


Posts: 5
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


Posts: 56616
Location: DiabloSport World Headquarters

thats pretty mild and I would half expect it to idle with a stock cal on a 6.2
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST


Posts: 5
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.


Posts: 56616
Location: DiabloSport World Headquarters

im guessing it will run.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST

Post Thu Aug 13, 2020 10:37 pm

Posts: 17792
Location: CT

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
06MonteSS / DiabLew Tune
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2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net


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