I was thinking of going w/ the hondata til I figured out how they tune it..you have to basically rechip it from what I understand.

Am I wrong?

Zydne you can program w/ a laptop on the go...sort of a F&F style programming...

Do I understand this correctly? Plus it has a 3 bar map sensor...

Anyone use this Stand alone unit? Gimmie Some feedback..

 

BlwnBlue,
With the Hondata you dont rechip the ecu actually, You Have the option of tuning as you go. I have seen the tuning of the system on my dyno and am convinced it is the way to go with forced induction on a honda. Go to the site or Steve @sgt racing can help

 

I have a zdyne ecu and i love it. All the tuning is on the laptop, setting all your fuel/ignition map, rev limit, clutch cut/launch, vtec/nos control is in the software. The hodata has also the option for a 3 bar map sensor. The zdyne unit is really for non obd cars at this time, I believe they are working on obd2 or 1.

 

Yeah, they are now working on the OBDII option as we speak and I was thinking that I want to go w/ that one instead of Hondata...So I was trying to think of the pro's and con's of each system...I think the Zdyne is a better choice but I want to talk to people who use either one so I can make my decsion based on other people's experiences...so if you have any info about either let me know!

 

yes the hondata involves rechipping, but that only takes a moment once the
program has been modified. I tune on the dyno using an emulator so that I
can do "on the fly" programming, and then once I have tuned the program
I burn a chip.
I dont know too much about the zdyne, but some people I know have had less
than acceptable service from them.

 

Sgt hit it right on.

With the Hondata, you do your tuning with an emulater (which is all the zdyne basically is), then when you are done, take the information and burn it into the chip. Easy as pie. Hondata also has the 3 bar option, and many options the zdyne doesn't.

If it helps make your decision, Zdyne has been working on the OBD2 for one year already and has no set time table for release(last I heard) - which means it's still a ways off. Also, any particular reason why you would want OBD2?

 

Any reason why I should change to obdI?

Simplicity! ObdII has the ability to diagnos just about every sympton w/ the motor and I don't see any benifets to changing to from obdII..

For example OBDII doesn't have limp mode so If I throw a cel ...provided it's nothing major the car still runs normal...doesn't cut out vtec, doesn't stop me from redlining...I don't have to worry about a wire harness ..there are alot of reasons to stay where I am at..and w/ a standalone I don't think that it matters which you use ..obdI or II...

not exactly sure what you all mean by an emulator? What does that do? Can you use it permanetly so you can tune "on the fly" ...

So it seems that Hondata is the best?
Well between the 2 choices I gave!

 

The limp mode functions on obd1 and 2 are identical. Only serious codes will
cause a limp mode. And the same codes that cause limp in obd1 will do the same
in obd2. So that argument is moot.

The way an emulator works is it stores the files needed into memory chips located
on the emulator which plugs into the ecu socket. Having a laptop connected
to the emulator allows you to essentially burn chips over and over w/o the chip.
Make sense? It is possible to drive around with the emulator, but its much easier
on a dyno when you are sitting still.

 

I call codes 71-74 major...and I could still redline and I could still hit vtec...that is speaking from experience..

**** I didn't even know I blew my motor til 3 days later...the cel was flashing and I could still hit vtec and redline...

But that is besides the point...I appreciate the advice..I also have another question since you all have more experience than I ...and that is Does the hondata control boost or will I still need my avc-r?

 

well, I like the advantage of being able to run a test pipe without a CEL (not that it does anything). Also don't have to worry about stupid CEL's which tell me the mixture is too rich (ya, maybe for an n/a car) or that the ******* gas cap isn't turned three clicks. If I had a stock car, yes, OBD2 is fantastic. But for a boosted app on an ECU with emissions diagnostics for a n.a. car, nah I'll pass. I'd much rather have the data logging feature, which is 200% more useful than a CEL would ever be.

But, with either the Hondata or Zdyne, you must use some sort of boost control, as the ECU does not govern that - only measures and compensates.


[Modified by VaporTrail, 6:05 PM 8/9/2001]

 

Yeah your right about the striaght pipe thing ...but now I run a hight flow cat and have no cel...

but what do you mean about data logging?

Are you saying that the obdII honda system doesn't data log? If so I didn't know that ..I thought no matter which one you got it logged all the data?

 

71-74 could be major or minor. My car throws 71-74 all day long.
No real problems just a little fluctuation of the crank from the cams i use.
71-74 dont exist in obd1 so your point is still moot

What he means is with the hondata system, you can datalog all the sensors.

 

Stephen, who's the local Hondata dealer?
Yes, I just checked their site.
I'd like to buy you a or and discuss it after work some time when you've got a chance.
Thanks, ed pipala.

 

Well in my situation 71-74 were major but that is besides the point...

as far as datalogging...that is with all hondata systems isn't it?

 

datalogging is optional on all stages except stage 4 where it is standard.

 

everyone that sells hondata says hondata has more features. So can you caompare the two in features? Zdyne seems pretty nice, love that Vtec control for my pr4.

 

If i knew more about the zdyne i would be more than happy to do a rundown.
Unfortunately, not much information is available.

 

if i'm not mistaken, with the hondata don't you have to buy the obdI adaptor anyway?

 

correct. Currently there are no applications for OBD2 vehicles, but changing to OBD1 is both extremely easy as well as beneficial IMHO.

 

Zydyne and Hondata products do not really compete. Zdyne offer products for "91 and earlier ECUs. Hondata for OBD 1 and newer via adaptor cables. It seems to be a well engineered product. The major differences I see is that the Zdyne unit has better in car real time reprogramming for their top of the line unit. Hondata units have a lower starting price ($390) are upgradeable, can adjust up to 5 rev limits in the car without a laptop and have datalogging as an option. As for support, I suggest you ask users of each system.

Doug

 

I got a question. How much would it cost to get a complete Hondata system with all the bells and whistles. I'm talking about every damn option including shipping. Reason why I ask is because everyone likes Hondata for the price and ease of installation.

One more thing, if a Speedpro(FAST), DFI, Haltech etc. was as affordable and was very easy to install as Hondata, would any of you get one?

 

if it doesnt require much tuning and good for a daily driver I would consider it.

 

I would if I didnt have to pay a tuner to get my car to barely idle or to pay again to get it re-tuned everytime i might add something different. I believe some of those units are priced right up there with the hondata.


[Modified by 9psiLsT, 12:58 AM 8/11/2001]

 

Has anyone thought of modifying a DSM turbo program to run a honda....or make some sort of adaptor to use a DSM computer on a honda....those cars seem to run just fine with boost.