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Stock LS3: Worth the Cost to Tune?

Old 11-04-2018, 10:22 AM
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jost6453
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Default Stock LS3: Worth the Cost to Tune?

I have an '11 GS MN6. 26k on it now. I've installed a cold air intake shroud, attack blue filter, and catch can. Those are the only engine 'mods'. I've often wondered how much additional performance could be gained by doing a professional dyno tune. By performance, I really mean mid range torque. I don't care about HP gain above 4 -5k. I don't race it. I don't want to add headers. I just want to get the most out of what I have. Would I be able to feel the difference? If not, then I have my answer. Please share your opinions ...and better yet.... data.
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Old 11-04-2018, 06:01 PM
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I think 80% of my clients are stock to headers. All of them notice a nice performance difference after tuning. Most stop their modifications at the bolt ons level. 15% of them add an aftermarket camshaft and 5% go with an aftermarket supercharger.

Usually 20 RWHP come from just tuning at the stock to bolt ons level. Move away from the peak RWHP number, and think more towards everything tuning does to the corvette's performance.

I list most of the changes on my website that I make to the LS series engine. Check it out > www.TampaTuning.com

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Old 11-04-2018, 07:08 PM
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Originally Posted by Tampa Tuning View Post
I think 80% of my clients are stock to headers. All of them notice a nice performance difference after tuning. Most stop their modifications at the bolt ons level. 15% of them add an aftermarket camshaft and 5% go with an aftermarket supercharger.

Usually 20 RWHP come from just tuning at the stock to bolt ons level. Move away from the peak RWHP number, and think more towards everything tuning does to the corvette's performance.

I list most of the changes on my website that I make to the LS series engine. Check it out > www.TampaTuning.com

www.TampaTuning.com
I do appreciate the reply, but it doesn't really answer the question. I have a MN6 and am looking for torque improvement off-idle thru 4 or 5k. You mentioned I might see 20hp ..... but if that comes above 5k, that's not what I'm looking for. Will I feel an improvement in daily driving? That's what I'd like to have. Thx tho.

Last edited by jost6453; 11-04-2018 at 07:25 PM.
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Old 11-05-2018, 04:25 PM
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I think what you want to look for are LS3 dyno charts for stock and then retuned on a stock engine, so you can see what RPM range the additional power is in and how much is made. What you probably feel the most wouldn't be the addition of power, but the recalibration of the throttle map, so the feel would be less about additional power and more about feeling that power at various throttle positions.

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Old 11-07-2018, 12:48 PM
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Heres a pair of LS3 dyno charts from our 93 octane tunes.
One from an Auto C6 and the other from a manual Camaro (couldn;t find a manual Vette, but this is a good representation of what you can expect.
Clear torque gains are readily available through the whole rpm range on both applications.

Thanks

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Old 11-07-2018, 12:53 PM
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Cant seem

to get both to show up in same post...heres the manual.
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Old 11-07-2018, 02:58 PM
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Originally Posted by [email protected] View Post
Cant seem

to get both to show up in same post...heres the manual.
Substantial toque improvement. I suspect I can feel that kind of change. I'll need to give you call at some point. Thanks for sharing.
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Old 11-07-2018, 03:48 PM
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Lots of solid reviews around here from other LS3 owners using our tuners

Let me know if you have any questions.
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Old 11-07-2018, 08:44 PM
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Originally Posted by [email protected]
Lots of solid reviews around here from other LS3 owners using our tuners

Let me know if you have any questions.
Hello Mike,

I also drive a 2011 GS MN6 and share the same concerns as the op. My engine is stock. My question to you, thank you for the graphs, but what happens below 3500 RPM where most people drive 90 percent of the time anyhow.
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Old 11-08-2018, 09:05 AM
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Its not easy to properly load a dyno that low, you'll notice its not common to see pulls start down that low in most cases. Also, you rarely if ever spend time at WOT below 3500....really only in 1st gear in most cases.
You can generally look at the curves and extrapolate their shape as you move down the rpm range to see how it looks.
The gains do tend to increase with rpm until it reaches peak torque.


Thanks
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Old 11-08-2018, 10:57 PM
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Originally Posted by jost6453 View Post
I have an '11 GS MN6. 26k on it now. I've installed a cold air intake shroud, attack blue filter, and catch can. Those are the only engine 'mods'. I've often wondered how much additional performance could be gained by doing a professional dyno tune. By performance, I really mean mid range torque. I don't care about HP gain above 4 -5k. I don't race it. I don't want to add headers. I just want to get the most out of what I have. Would I be able to feel the difference? If not, then I have my answer. Please share your opinions ...and better yet.... data.
It changed my life having my 06’ LS2 tuned. Although an automatic, it shifts faster, actually “lurches” forward and pulls a lot harder, especially when I hit 4K. Suggestion: find a good tuner in your area and do it.

Next year I’m going to have to get stickier tires, she NOW wants to break free launching, 2nd and a little in 3rd. It makes me really, really happy.
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Old 11-12-2018, 02:19 PM
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Originally Posted by [email protected] View Post
Lots of solid reviews around here from other LS3 owners using our tuners

Let me know if you have any questions.
I am one of the Diablo users on both my C6 and my C7 , you will feel and see a gain with the 93 tune. On my both of my cars it was about a 3 to 4 tenths gain in the quarter mile . I baseline both cars stock then as I added the mods , first was base stock, , then just the 93 tune , then I added a Vararam and last with headers . I logged each night along with my timed results , the DA and temps were pretty close this summer (the DA was consistently bad here in the south all summer )

When I added headers and a custom Diablo Lew tune and a custom TCM tune to the C6, the gain was even greater and the car pulled like a freight train all the way thru to the redline ..... .. I am about to log the C7 again as I want to add a custom tune to my C7

if you are just stock or minor bolt ons the Diablo and Diablo custom tunes are as good as a street tune ....

Dave
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Old 11-13-2018, 11:53 PM
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I have a 2011 Base Coupe M6 with NPP exhaust. Tampa Tuning tuned it with their Total Street Performance Tuning Package. Without question it is more responsive. It’s my daily driver and I am really pleased with the difference tuning has made in how it drives. Highly recommend you give it a try.





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