I'm wondering if anyone was able to get over this hurdle. Here is my last dyno graph and you can see where the stock cut off still tries to kick in. I know Dan worked on the timing and adding fuel however, my maps have gone funny plus exhaust restriction. So I'm hoping to over come this hurdle once the exhaust is installed. I also plan on removing my PV and seeing what happens there as VIAS doesn't seem to be on my side.

 

bumpers

 

The engine goes rich for about 200 rpms so you cannot completely eliminate the power loss at those rpm's. You can only edit the scale at the cutoff and try to make the gaps in-between smaller and smaller(between 6400 and 6600).

 

maybe one of you knows the answer to this...(sorry if im stealing the thread)

my value is 10.8 at 6500 to get past the fuel cut. At 6700-7200 do i have to maintain 10.8 or can i drop that back down to a normal value? if i drop it down to a normal value will that then be my fuel cut?

tdot and kevlo (and everyone else) what are your mods? im dek no power rod, soon to be stock headers (xspower shortys nothing but trouble), short ram, ypipe and exhaust. Anyone mind sharing their map? i understand not everyones values are going to be the same and all cars are different, yadayada, but im willing to go off of someones map and maybe scale back a bit for a little extra protection. right now im running the same exact tune from when i had the old de with the MEVI. i just want something for the time being, or atleast to compare or look at.

 

You wanna drop it down to the normal value after you get past the stock rev limiter, to what the normal injector pulsewidth/duty cycle would be at that RPM, and I believe the last cells left blank on the I/J map are where your new fuel cut will be.

(Dandy/TDotMax, feel free to drop in at anytime)

As for mods I just have the JWT POP, Fidanza flywheel and a timing advance. I'll be installing the EUltimate/AEM Wideband along with the v2OBX headers and Cattman cat-back in the coming weeks.

 

I have a custom 3" maf so mine will make yours too lean. Read up in the stickies on the Tuning link I have posted and they will help alot

 

How about ignition timing, how do you handle that since it's technically unmapped after 6500 rpm? Or how is it set up?

 

The ignition map goes up to at least 8000 RPM, as the rev limiter is purely a fuel cut.

Here you go:

 

Ah, that makes a lot more sense.

Is it possible to switch rev limiter type from fuel cut to ignition cut?

 

Not without having the ECU reprogrammed to do so, and I'm not aware of anyone who can do such a thing (short of Nissan themselves, obviously). To rephrase that, I don't know of anyone who would do such a thing.

With the EU, you could probably futz with the ignition tables and cut spark to make a rev limiter, but I don't see why you would.

 

Alright, thank you sir.

 

Actually, in the ignition tab you can add a spark cut limiter. I have mine set at 7300. My fuel cut is set at 7250



It is just added protection incase something goes wrong and to prevent another 8200 rpm rev

 

And you verified that it worked? Back in the day when I was doing all my EU playing that ign cut never seemed to work by itself....

 

Oh really??

im going to have to try that. Although it doesnt let me go past 7700. But im sure it would let me rev high as i would want in neutral.

 

Kevlo, are you running the stock oil pump or the RevUp?

And for raising the rev limit (sorry in advance if this is considered thread jacking), if I wanted to bump it to 7200rpm, would I just fill in values for injector PW up until 7200rpm and the EU would cut fuel there? This makes sense to me but if it's any different someone please explain.