Nismo Tune too hot for nitrous

Jordo! · 12-25-2014, 01:54 PM

Quote:

Originally Posted by gbrettin

I'm running a 100HP shot on my stock tune and been through 7 tanks, 3 tanks @ 75HP and 4 @ 100HP. I'm picking up UPRev pretty soon and will be data logging in the spring. I wish I had something to show you now....

I wouldn't waist my time with a 35HP - 50HP shot. To be honest, 75HP was a great starting point. I heard Z1 has dyno tuned some Z's with nitrous so maybe you could give them a call to pick their brain.

Ehhh -- OEM tune skews way rich (11:1 AFR) so that helps, but you could be causing microdamage to the pistons and other reciprocating parts you will not find out about for a while... you won't necessarily grenade the motor all at once.

I'd at least look into 1 or 2 step colder plugs (and lots of tuners swear by copper ones, although I think stick with iridium and colder... ask Z1?) and if you are running 91, find 93 or higher when you plan to spray. You might look up a blending chart and add a 1/4 tank of 100 pump gas if you can find it to nudge up the AKI.

Winter temps in Michigan will help too.

Good luck!

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