Intake, Header, HFC, CBE = Too Lean?

Zsteve · 03-25-2010, 03:56 PM

Quote:

Originally Posted by semtex

I can't speak for Cobb, but I can tell you that when you reflash the new ROM into your ECU with UpRev, that base map is exactly that. It's a base map that has all of the factory parameters, and assumes no mods. By itself, it is not intended to yield any gains. Its sole purpose is to provide the tuner with a platform on which he can load maps that he builds via the process of running your car on the dyno. You see, the factory ROM that comes from Nissan allows no such thing. There are no 'slots' to drop the maps you build into, so to speak. So you replace the factory ROM with UpRev's ROM, and their ROM has these 'slots' for you to plug your performance map(s) into (as well as your valet and anti-theft maps).

AA has you tell them what mods you have and they adjust the tune acording to the mods and I think the AFR is one of the changes and probably timing, then they put it on the accessport for you to load.

semtex · 03-25-2010, 04:01 PM

Quote:

Originally Posted by Zsteve

AA has you tell them what mods you have and they adjust the tune acording to the mods and I think the AFR is one of the changes and probably timing, then they put it on the accessport for you to load.

Right, and that would be equivalent to Uprev's e-tune service. But I don't know of anyone on this forum who has tried Uprev's e-tune yet. That's why I was asking Dreamer if he was getting a dyno tune, because for a moment I thought maybe he was going to try the e-tune. See it's one or the other, you don't do both. Now, a e-tune is a viable alternative if you don't want to (or just can't) do a full dyno-tune.

But you can also use Cobb to do a full dyno tune. And if you were to do that, I suspect it'd work in much the same way as Uprev. i.e., the initial load would be a 'blank' map that has all the same parameters as a stock car. It'd be kinda like a blank canvas onto which your dyno tuner could lay down his masterpiece.

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