First off I have a Prelude Type-SH with the ATTS system. Don't want to get rid of it thus the reason why I have to get a PMS system. Hondata, Uberdata, etc is out due to this as I have to retain the entirely stock ECU.

Now, I've been reasearching the two units and they each have their own features but seemingly I'm really not sure which to choose. This build will be a very mild build and the internals of the engine will not be upgraded unless they break first but all the bolt ons will be installed. Here are some highlights that I've found for each unit.

Emanage:
- 16x16 fuel table, however it does it by modifying the MAP sensor input thus changing igntion timing tables as well.

- Built in VTEC control and VTEC fuel correction factors.

- Built in datalogging

- No CEL for VTM wire.

- Can be found used for around $350 w/ ignition/injector and support harnesses.

EFI PMS:
- Has three different fuel/ignition maps you can utilize via a change of a switch. Normally a stock, mild and wild ignition/fuel settings. I probably don't need this as it'll be on pump gas all the time.

- Fuel is controlled by directly changing the pulse width (not confirmed... and I can't tell by the sad instruction manual when it comes down to telling you how they change the fuel / ignition settings) but the PMS does display injector duty cycle.

- Built in O2 sensor readout, but this is more of a novelty than anything as I'm just going to run a stock Honda O2 sensor so it'll be the same show you get from an Air/Fuel gauge.

- Changing timing, it directly reads the crank angle sensor. This is not confirmed, can't tell by the dang manual! But is assumed when the unit can read total timing on the fly.

- Some internal barometer and engine temp sensors to compensate for when the engine is cold

- $500 used + needing to buy a OBDIIa harness for an additional $200.

Overall the EFI PMS seems more powerful but considering the amount of work that I'm going to do will the Emanage be powerful enough for me? Right now I have a V-AFC and I just want to upgrade to something that has timing adjustment as I can not just turn my distributor to advance timing.


Modified by TimeRacer at 5:34 AM 9/9/2004

 

Anyone have experiece with either on an all motor car?

 

I have had good results with the emanage. 171 whp and 112 lbs on a b16b with i/h/e.

 

How hard was it for you to tune the emanage?

 

With eManage's A/F sensor input, it utilizes the factory first position O2 sensor to read the A/F voltage (I am assuming). This can be datalogged correct?

 

We had no problem tuning it. It took about an hour. You can see my dyno before and after the emanage if you serch my user name. It still holds the power that it put down the first time and it has been about 3 months. The rumer that the ecu will untune the emanage is false. All runs were very consistant. We did about 15 runs. My 1/4 mile is also consistant every time. Make sure you get both of the harnesses. You can data log straight from the emanage if you buy the software.

 

OBDII will detune your settings if you're messing with the closed loop (~35% throttle or less) settings so just stay away from that and you're fine. I guess no one's done any in depth reasearching on either unit.

 

All tuning was done in open loop.

 

I have emanage, when i had stock injectors and had all settings to zero, u wouldnt know it was there. Then i upgraded to my 450CC injectors and the car throughs a barmetric pressure sensor code and the car jerks really hard at certian RPM's when getting on and off the gas. You get use to it and figure out how to drive the car, but sometimes its a b*tch when your going down hill with cruise control on. I dont know if the car gets jerky when u change any air/fuel/ignition/injection settings or if its just because of the Injector compensation. I havent heard anything about the other unit your talking about but if i were you i would prolly go with the E-manage. but if u dont have to keep ur stock ECU for emissions i would go for Hondata.

Good luck
Chuck