just wanna know wat u guys think....AEM EMS or Hondata? pros and cons? n/e thing will help...thanks

 

EMS has so much more potential. People who vote for Hondata have it or are unfamiliar with ability of EMS which is far and above a much better product. Just the automapping feature alone on the EMS is awesome.

 

If you have a 1992-1995 Prelude, the Hondata is really inexpensive, probably 30% the cost.

The HP potential with both are exactly the same probably. Its all a matter of how much tuning time you put into it.

Hondata can be smog legal too, EMS can't.

Jeff

 

BUT...for those that have to do OBDI swaps, it's not as attractive...

 

preludes have to run a different ECU for the hondata like the P75 if u wanna keep your secondaries... but not bad for the price..

 

P72 = GS-R That's what you need to keep secondaries.

 

it doesnt matter what we think, it matters what your tuner thinks. If he knows his hondata stuff but doesnt know anything about the EMS.... which one do you think will produce better results?

 

it doesnt matter what we think, it matters what your tuner thinks. If he knows his hondata stuff but doesnt know anything about the EMS.... which one do you think will produce better results?


Tuner is not necessary with EMS if using a wideband O2 and the automapping feature. Just punch in the A/F ratio desired and your're set to go. Perfect tuning. The EMS is really easy to use and doesnt require adaptor plugs etc. If money isnt an issue its a no-brainer. EMS. Best $1200 you can spend for tuning and safeguarding your investment.

 

Then add $1000 for an 02!

Or do you mean just doing it on a dyno and hooking into it's wideband?

 

Hardly, you can get a good accurate one for under $400. How much do you think it costs for a few hours on the dyno? Few hundred bucks at least, plus paying someone to tune your car. It pays for itself very quickly.

 

Sorry I think in Canadian $$ so $400 = 600+taxes+duties.

Anyways do you have links to the cheap accurate ones....

Could the same autotune be done with an EGT?

 

Dont know about an EGT myself, I just found out about the automapping recently with a wideband O2 added to the exhaust header. Go to PO.com for the cheapest price, I know there are a few threads on em. I got it from some place online, I will try and locate the website and post it up here. I know of one place that sharkcohen at PO.com pointed me to, and the price was around $600 or so, but there are a few more companies that sell the identical setup for just under $400 shipped. I know a search on yahoo brings up a boatload of info too.

 

Very interesting stuff.

How much more power can you actually unleash by just adding the EMS or Hondata onto a OBD1 prelude with bolt-ons(I/H/E/pullies)? I've always wondered if it was actually worth doing this since the stock fuel map loves to dump in way more fuel than needed. Anyone have an idea?

 

With just bolt-ons a V-AFC and some dyno time is all you really need..cause with OBDI you can advance the timing yourself...

 

Data for life...... http://www.hondata.com/

P.S. Worlds Fastest All Motor 10.24 Erick's Racing uses the data in his car.

 

Denso has a wide band for the civics which retails for around $120 at the shops around here. Granted the civics dont' use a 4 wire (atleast the price is proving that to me as prelude ones are around $350 retail)... so if denso does make a wide band one for the 4 wire it's going to be more like the $400-$500...

 

I believe its a 5 wire for the Prelude.

 

**** i meant the p72 not p75

 

Greddy wide Ban O2 sensors with the air fuel gage is 300 bucks..+

 

preludes are 4 wire. I don't think there is such a thing as 5 wire. On a 4 wire, one is +12V for the heater, one is ground, and the other two are signal wires

 

These are used for the wideband setups that are being discussed in this thread. And yes, a lude uses a narrow band, four wire sensor.


[Modified by sharkcohen, 11:01 PM 11/30/2002]

 

well ****, i need to get my *** to a dyno because i've had a V-AFC in my car for so long now with no dyno time. I wonder what i'll put down.....

 

On a 4 wire sensor there is only one signal wire. One 12volt power for the heater and two ground wires; one ground is for signal and one for heater.

The Greddy is not a wideband sensor/controller. It's called a nearband sensor/controller. It's better than a 4 wire narrowband, but not as good as a UEGO sensor/controller.


[Modified by DirtyLude, 9:11 PM 11/30/2002]

 

Well my thing with deciding to go aem, after buying a OBD 1 p72 and a hondata stage 2, is that i dont trust the hondata tuners in my area. One is flakey at best and is never at their shop half the time and the other doesnt seem to know much about it. The autotune on the AEM is what appeals most to me since I plan on learning this (tuning) as I go. The support that AEM has offered thus far on the unit is great and free upgrades keep coming down the pipeline. I do plan on holding on too my P72 in the interm just incase i change my mind but with Hondata recently forcing you to buy the s200 with the 3 step I am spending the same on it as I am the aem.

EDIT: well after reading this thread https://honda-tech.com/zerothread?id=344095I am not so sure which one to get again. Damn it why cant their be even just 1 good tuner where I live?


[Modified by KCHybrid, 9:29 AM 12/5/2002]

 

i have used both hondata and the aem ems....... if you want to tune your hondata ur self you are stuck with the stage for mess and will spend about the same as the aem.

as for which is better. the AEM EMS OWNES hondata. there is so much more you can control and its ALOT less hassle to use. with hondata you have to have a emulator, a programer, 3 pieces of software and you have to take apart the ecu everytime you wana tune it. things such as injector advance, nitrous control, automapping and a few other things give the aem a HUGE advantage. the aem even has the ability to have a seperate vtec ign and fuel map just like the hondata. but with the aem you can specify a load, tps and rpm for vtec to come in. you cant do all that with hondata.