Diablo 91 tune Corvette LS2

Hi,

I have a 2007 Corvette...

Does anyone know if the timing settings in the 91 tune are different from the stock tune? And how come the Diablo tunes give worse mpg than stock?, same speed, same conditions. Before I got 37mpg at 60mph and now 'just' 33mpg

[mikel]

there is nothing in the tune that would lead to a loss of mileage, except driving style....

the 91 tune uses a very similar timing curve as stock tune.

Oh thanks, then maybe I just got a headwind, sorry for insulting the amazing Diablo tunes

What exactly is different/changed in the 91 tune compared to stock tune?

[mikel]

randy_ls2_c6 wrote:

What exactly is different/changed in the 91 tune compared to stock tune?

some timing, fueling, throttle response, and torque management...

Ok, more fuel? Does the tune make the car run richer or leaner? Is the tune suitable for high altitude?