Just curious if there is any potential tweaking the stock tune on the 87 octane or is everybody going all the way with 92/93 octane style tunes?

I noticed everybody is taking about CAIs and exhaust, but lets not forget a 160 thermostat. To me that is just as good as those especialy in hot and humid climates. I noticed in my Z06 that between 180 and 200 degrees the car would pull crazy amounts of timing. The ability to keep it in the 180s makes more power available.

A tuner over on LS1 tech was able to gain some 30hp with 87 octane so there is definitely room to be made even with low octane fuel.

Just curious if there is any potential tweaking the stock tune on the 87 octane or is everybody going all the way with 92/93 octane style tunes?

I noticed everybody is taking about CAIs and exhaust, but lets not forget a 160 thermostat. To me that is just as good as those especialy in hot and humid climates. I noticed in my Z06 that between 180 and 200 degrees the car would pull crazy amounts of timing. The ability to keep it in the 180s makes more power available.

PM sent

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Holy crap! I just read this thread over on LS1 Tech......

http://ls1tech.com/forums/showthread.php?t=896664&highlight=tune+87+octane


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Impressive, wonder what is involved in having this done? I would like to keep regular gas and have that increase + like his keeping the 4 cyl and making it run more in that at cruising speeds. Wonder what the cost will be?

just like i thought. GM got the G8 pulling crazy amounts of timing when it gets hotter based on its readings from the IAT and coolant temperature. LIke I said, first thing i would get is a 160 thermostat and change the fan load setting in the tune.

I think I had my fans running at 70 percent between 190-200 and something like 90 percent when it got over 200. Cooler running car = better running car :burnout:

just like i thought. GM got the G8 pulling crazy amounts of timing when it gets hotter based on its readings from the IAT and coolant temperature. LIke I said, first thing i would get is a 160 thermostat and change the fan load setting in the tune.

I think I had my fans running at 70 percent between 190-200 and something like 90 percent when it got over 200. Cooler running car = better running car :burnout:

Swapping the stat was one of the first things done in Texas, too damn hot down there!

I just ordered one from NEP. I wish I had thought about it at the same time I ordered the CAI.

I ordered mine with my CAI. What would I tune it to if I live in the desert? Summer gets to 110 all the time and winter is never really below 55..?

Im just going to ask VMS to add it when the send me my tune.:)

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I put this together to give people an idea of what HP they could make in there G8's

Running 87 Octane - Mustang Dyno
279 rwhp, 299 rwtq - stock
313 rwhp, 328 rwtq - tune only (stock intake)
http://ls1tech.com/forums/showthread.php?t=896664&highlight=tune+87+octane

Running 93 Octane - Mustang Dyno - Vector Motor Sports
304.8 rwhp, 315.3 rwtq
335.1 rwhp , 348 rwtq – tune only
http://www.g8board.com/forums/showpost.php?p=20430&postcount=14

Running 93 Octane- Dynojet Chassis Dyno
298 rwhp, 322 rwtq - stock
317 rwhp , 336 rwtq – tune only (stock intake)
309 rwhp, 327 rwtq – stock + New Era Intake
324 rwhp , 341 rwtq – tune + New Era Intake
http://www.g8board.com/forums/showthread.php?t=1851

Well it may not be my call, but I'll certainly comment on it. I come here to learn, if part of the info is "hidden", then maybe I'll need another board to read.

hidden?

hidden?

Yep, just like the post you quoted.