Tuner Q: Best Tuning Method for Simple Tune Change
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,512
Likes: 1,299
From: Windermere FL
Tuner Q: Best Tuning Method for Simple Tune Change
I have tried to research this question, but I am not getting what I read and so I am seeking the advice from the experts.
I have a pretty much stock '15 Z51. The only major mods to the engine are a Dewitt's Radiator and Fan, and a 170 degree stat. She runs at 168 pretty constantly if the AC is on so the fan runs max. If I turn off the AC, it will run hotter of course because the fan does not run as much.
I wanted to get recommendations for a tune just to change the fan to better match the 170 stat.
From what I read, tuning software like HP tuners can modify the fan table. But I guess there is no single value that can change the stat value in the tune. But I am wondering if there are simpler options I can use to adjust the fan.
I have read that some tuning solutions can turn off AFM, so I could take off the Range I use. So that would be good.
What "Home Use" tuning solution would you recommend by a tuning novice for these two changes, without going to a professional tuner in person.
Thank you in advance.
I have a pretty much stock '15 Z51. The only major mods to the engine are a Dewitt's Radiator and Fan, and a 170 degree stat. She runs at 168 pretty constantly if the AC is on so the fan runs max. If I turn off the AC, it will run hotter of course because the fan does not run as much.
I wanted to get recommendations for a tune just to change the fan to better match the 170 stat.
From what I read, tuning software like HP tuners can modify the fan table. But I guess there is no single value that can change the stat value in the tune. But I am wondering if there are simpler options I can use to adjust the fan.
I have read that some tuning solutions can turn off AFM, so I could take off the Range I use. So that would be good.
What "Home Use" tuning solution would you recommend by a tuning novice for these two changes, without going to a professional tuner in person.
Thank you in advance.
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,475
From: South Florida
These cars don't need to run less than 195 degrees for maximum power. Interesting choice of mods even if you road race. There are a few tables that need to be changed via HPTuners to accomplish what you're looking for. There is no home grown solution other than to ot sire the fan on a toggle switch but that is foolish IMO.
Melting Slicks
Joined: Feb 2018
Posts: 2,126
Likes: 1,010
From: North Texas
Diablo I3 tuner will allow you to turn off your AFM.
I think that it will also allow you to set fan speed but am not 100% sure.
Go to their website and look up what the I3 can do.
I use mine just to turn off the AFM.
I think that it will also allow you to set fan speed but am not 100% sure.
Go to their website and look up what the I3 can do.
I use mine just to turn off the AFM.
Supporting Vendor
Joined: Aug 2007
Posts: 1,451
Likes: 86
From: CT
bad move on the colder t-stat... it will not allow the engine to get up to normal operating temps - which is not good on these engines... these engines like to run a little warmer and make more/better power... go back to the stock t-stat man... and then via a tune, the fan power % can be adjusted as needed... but don't change the t-stat....
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS LS3, short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake, catch-can, ported/polished TB, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS LS3, short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake, catch-can, ported/polished TB, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
3rd Gear
Joined: Jan 2022
Posts: 3
Likes: 0
I have tried to research this question, but I am not getting what I read and so I am seeking the advice from the experts.
I have a pretty much stock '15 Z51. The only major mods to the engine are a Dewitt's Radiator and Fan, and a 170 degree stat. She runs at 168 pretty constantly if the AC is on so the fan runs max. If I turn off the AC, it will run hotter of course because the fan does not run as much.
I wanted to get recommendations for a tune just to change the fan to better match the 170 stat.
From what I read, tuning software like HP tuners can modify the fan table. But I guess there is no single value that can change the stat value in the tune. But I am wondering if there are simpler options I can use to adjust the fan.
I have read that some tuning solutions can turn off AFM, so I could take off the Range I use. So that would be good.
What "Home Use" tuning solution would you recommend by a tuning novice for these two changes, without going to a professional tuner in person.
Thank you in advance.
I have a pretty much stock '15 Z51. The only major mods to the engine are a Dewitt's Radiator and Fan, and a 170 degree stat. She runs at 168 pretty constantly if the AC is on so the fan runs max. If I turn off the AC, it will run hotter of course because the fan does not run as much.
I wanted to get recommendations for a tune just to change the fan to better match the 170 stat.
From what I read, tuning software like HP tuners can modify the fan table. But I guess there is no single value that can change the stat value in the tune. But I am wondering if there are simpler options I can use to adjust the fan.
I have read that some tuning solutions can turn off AFM, so I could take off the Range I use. So that would be good.
What "Home Use" tuning solution would you recommend by a tuning novice for these two changes, without going to a professional tuner in person.
Thank you in advance.
Melting Slicks
Joined: Feb 2018
Posts: 2,126
Likes: 1,010
From: North Texas
An I3 Diablo handheld tuner will not void your warranty if you flash it back to stock unlike other tuner that will leave a CVN change that GM can detect that the engine was tuned at some point.
