6.2 v8 ls3

[Nabraxas]

New here so go easy if I'm barking up the wrong tree!

Got a Vauxhall VXR8 6.2 V8 LS3 in the UK which I believe is the E38 engine and the same as the Corvette C6.

I'm looking to be tuning this but was hoping somebody could provide me with a decent high octane tune file I can use as a baseline? I've got an aftermarket exhaust and an OTRCAI intake... once I have a tune file I can play around with that myself but was hoping somebody could send me one as a starting point? Always run 99 octane fuel.

Also, is it possible to setup a MAFless tune with this?

Thanks for any help, much appreciated!! :)

[N0DIH]

Welcome! Just was watching the vids on the VXR8 on Top Gear, that car looks to be a blast.

What year? Is this the one with the red Walkinshaw (http://www.walkinshawperformance.com.au/wp/au/)supercharger? Sorta like Magnuson (http://www.magnusonproducts.com/)here, Eaton Superchargers (http://www.eaton.com/EatonCom/ProductsServices/PerformanceProducts/Products/Superchargers/index.htm) to Magnuson (http://www.magnusonproducts.com/)'s specs I believe.

Curious why you would want to rush in and ditch the MAF? A properly tuned MAF isn't a bad thing.

Edit: Found out Walkinshaw is not a Whipple, but an Eaton...
"• WP 190 supercharger assembly using Eaton rotor groups"




New here so go east if I'm barking up the wrong tree!

Got a Vauxhall VXR8 6.2 V8 LS3 in the UK which I believe is the E38 engine and the same as the Corvette C6.

I'm looking to be tuning this but was hoping somebody could provide me with a decent high octane tune file I can use as a baseline? I've got an aftermarket exhaust and an OTRCAI intake... once I have a tune file I can play around with that myself but was hoping somebody could send me one as a starting point? Always run 99 octane fuel.

Also, is it possible to setup a MAFless tune with this?

Thanks for any help, much appreciated!! :)

[Nabraxas]

I don't mind keeping the MAF - just heard that the MAF'less way was the "best approach" but I' very new to ECU management so I'm open to ideas :)

Any starting point on what to change on my standard setup would be helpful (I know we can advancing timing etc) but really looking for an already tuned setup I can have a fiddle with.

Mine's a 2009 VXR8 but isn't the Bathurst S which is the supercharged version - I've had it on the dyno and was kicking out 470bhp... I'd like to squeeze a few more horses out of that though :)

Thanks.

[ringram]

To be honest the best way is to get fueling right that will give you a load more power right off without needing to touch timing.
Which you might find is pretty good as is, maybe a few degrees more or less here and there.

Disabling long term fuel trims is a good start. They suck.
Have a read though the auto vve tutorial. Do lots of logging with the stock tune. Save the tune and then work through the auto vve tutorial.
Worse case just flash back to stock. After a few head banging on the wall sessions you will have some revelations and all will be well.