My Thoughts on the eManage Ultimate

[Chris@Rvengeperformance]

Yeah, tip-in has become a bitch but I'm not using a Hz Map built off my setup, I'm using Grayson's map.

Using both Throttle vs RPM and MAP vs RPM has greatly helped though. I haven't finished tuning this way yet.

I like his setup and I am approaching things exactly the same way, but I was really afraid to use someone else's map since I wouldn't understand it 100%. Maybe my results will not be perfect, but I feel good knowing what's going on.

[B-Man]

I like his setup and I am approaching things exactly the same way, but I was really afraid to use someone else's map since I wouldn't understand it 100%. Maybe my results will not be perfect, but I feel good knowing what's going on.

Problem is, 10psi@50% throttle doesn't have the same Hz as 10psi@100% throttle.

[HLxDrummer]

I run a ported MAS with the Mellon bypass mod (filter under the bubble). The AFR`s are so repeatable with that setup I`m loathe to ditch it for true SD. For me the gains wouldn`t outweigh the drawbacks.

Does the little filter make a decent difference in performance? I've considered doing this but I like have my Evo DV recirculated..

[Chris@Rvengeperformance]

Problem is, 10psi@50% throttle doesn't have the same Hz as 10psi@100% throttle.

makes sense.

Can you use i/j map 2 and use TPS scaling on it?

[B-Man]

makes sense.

Can you use i/j map 2 and use TPS scaling on it?

Yeah, tip-in has become a bitch but I'm not using a Hz Map built off my setup, I'm using Grayson's map.

Using both Throttle vs RPM and MAP vs RPM has greatly helped though. I haven't finished tuning this way yet.

I'm just not finished to be able to say whether it's the right way to go or not. I've been driving company cars and have been slowly losing interest in my car. At this point I've been recommending people stay with a MAS of some sort. I wish I had so I could've enjoyed the car a little more.

[KeithMac]

Does the little filter make a decent difference in performance? I've considered doing this but I like have my Evo DV recirculated..

I used it to drop airflow though the MAS so I could ultimately meter more air flow (aiming for 30psi).

Table below was 2 runs, one with the Snakeskinner ported MAS, the next with the bypass added..

rpm boost psi Ported Hz Mellon Hz
4250 20 1810 1551
4800 21 2139 1834
5200 21 2370 2018
5500 21 2426 2113
6000 21 2637 2148
6500 21 2712 2260

[KeithMac]

For some reason it`s ignored the tabs so you`ll have to space it out..

[Chris@Rvengeperformance]

hey guys what hz are you hitting fuel cut. I think I'm hitting fuel cut around 2400-2500 hz.

nvm:

here is the airflow clamp posted by Graz Haze:
clamphz.JPG

At 4112 RPM I'm hitting 1682 Hz, so I am way past the recommended clamp value. I didn't think I'd hit fuel cut so soon, only running 13.4 PSI at that moment. May have boost leaks?

[TurboSinceBirth]

I wish I would have saved my Stage 3 speed density EMU setup. I like how the software worked and it made it easy using Grayson's map. I may get another one again before deciding on a flashed ECU or AEM series 2.

[Chris@Rvengeperformance]

well FYI the boost limiter works great except it is of course a bit tough to rough in the afr at the transition points since I don't know exactly what PSI equates to airflow yet and my car seems to be reading a ton of air compared to other maps.

I'm really glad I didn't use someone else's airflow map. I have to have a football sized boost leak somewhere. Data sampling is showing peak of 2902Hz at 5000 and 11.6 PSI. 2780hz at 7000 14.5 PSI. Obviously these are different pulls, but the picture shows a lot more airflow than I would expect, even for an unmolested stock maf. I wonder if I have a NA maf...

I almost have enough airflow data to make my speed density map, but I think I'll pressure test first.

Looks like I can hit about 14.5PSI by 3500 in 2nd. I'm planning on doing a long 3rd gear pull on stock maf once I have the tune a bit better, then I can do one after switching to speed density for a direct comparison of spool up.

Edit, I think that 2902 Hz area is an anomaly. 8.7 PSI at 5000 shows 2666 HZ, then 11.6 PSI shows 2902, then 14.5 PSI shows 2727. I'll have to interpolate between those points.