Tune Questions - Need some data

Speedy · 02-15-2012, 01:47 PM

I'm hoping someone (maybe one of the tuners) can answer a couple of basic questions for me on Z tunes.

I have experience with tuning so don't be afraid to get technical.

How does the spark advance look on a stock 370z? What's the max it's set to? I'm curious about this since it's tuned to 91 octane. We have 93 in my area so I figure there's some more in there and curious what it is stock.

How much timing are you guys usually able to add over stock? I know it's different from car to car, but if you've done a few it should show trends. On the Challenger we usually see 15-20HP gains for every degree of timing added.

Also, same question on the WOT AFR. I'm seeing some dynos showing it to be 12.0 - 12.3, but that appears to be read at the tail pipe which is affected by the cats a bit.

I'm reading you can switch between maps on the fly using the cruise control button? Does that disable cruise control or does that still function? That's a very slick feature as I have to carry a tuner in the glove box of my Challenger to hook up and swap tunes and it has to be done offline with a couple of key cycles.

erkthejerk73 · 02-15-2012, 02:09 PM

cruise is still active, you have to be under a certain RPM to switch to a dif map

Speedy · 02-15-2012, 02:16 PM

Quote:

Originally Posted by erkthejerk73

cruise is still active, you have to be under a certain RPM to switch to a dif map

Man, that is really cool.

02-15-2012, 01:47 PM	#1 (permalink)
Speedy Enthusiast Member Join Date: Jan 2012 Location: TN Posts: 390 Drives: check my signature Rep Power: 13	Tune Questions - Need some data I'm hoping someone (maybe one of the tuners) can answer a couple of basic questions for me on Z tunes. I have experience with tuning so don't be afraid to get technical. How does the spark advance look on a stock 370z? What's the max it's set to? I'm curious about this since it's tuned to 91 octane. We have 93 in my area so I figure there's some more in there and curious what it is stock. How much timing are you guys usually able to add over stock? I know it's different from car to car, but if you've done a few it should show trends. On the Challenger we usually see 15-20HP gains for every degree of timing added. Also, same question on the WOT AFR. I'm seeing some dynos showing it to be 12.0 - 12.3, but that appears to be read at the tail pipe which is affected by the cats a bit. I'm reading you can switch between maps on the fly using the cruise control button? Does that disable cruise control or does that still function? That's a very slick feature as I have to carry a tuner in the glove box of my Challenger to hook up and swap tunes and it has to be done offline with a couple of key cycles.

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02-15-2012, 02:09 PM	#2 (permalink)
erkthejerk73 Track Member Join Date: Mar 2011 Location: cincinnati Posts: 927 Drives: 13 F150 FX4 eb Rep Power: 15	cruise is still active, you have to be under a certain RPM to switch to a dif map