well ive tuned most of my vehicles all older hondas really, and the few that have been obd2 we always convert to obd1 and tune that way and it seems to hold tunes better than obd2 unsure why just what i was always taught and seemed to work, so why dont i see anyone convertin the s to obd1 for tuning? wouldnt that open up to quit a bit more tuning options besides the usual ems options?

trying to learn now before i dable with the s, ive done alot of other reading in this thread so far but like i said im used to tuning older hondas lolz

 

The OBD2 on the S's have a LOT more going on, then the Prelude's we're used to. The OBD2 preludes are basically an OBD1 car with the addition of the second O2(for the most part).

 

it it that obd2b or whatever its called bs ? lmao, and really i like neptune and i like s300 and dream of having those setups on the s lmao also because theyre cheaper than all the options of fully tuning the vehicle than we have now.

 

With the S you can alter timing per cylinder, due to the individual coil packs. Also when a knock event happens, it'll tell you what cylinder the knock was present in. This allows for quicker diagnosis of problems and allows you to adjust timing per cylinder to offset the knock.

I use S300 on my Prelude and it's nice. But I'll for sure be running the AEM EMS on the S; probably next year.

 

i would still rather run obd1... i havnt looked into it but i think if you installed a distributor in a custom way it woudnt be that difficult to run odb1 rather than try and incorporate the cop with obd1 setup

 

Installing a dizzy would take a LOT of work and money. Getting a better EMS than S300, Neptune ect would be much easier/cheaper. Then you have the fact that you'd be downgrading your ignition system.

 

I run idividual coilpacks on my prelude.obd1 w. Aem can tune it.and I think neptune has one or will soon.

 

I don't think there was anything "better" about OBDI over OBDII as it related to tuning. I thought the Preludes just needed to be converted to OBDI so that they could use the existing aftermarket ECU's that weren't compatable with OBDII.

 

Well if you can tune AEM, why not use that for the S?

 

Because id rather use neptune on the s if I could.and no my prelude is factory obd1 most obd0 and obd2 cars convert to obd1 because the for some reason obd2 cars wont hold a tune. Im trying to get in touch w. Some local friends to figure a better answer for u.and will be in touch