zc ecu?

i got an 89 civic si with a dohc zc. I still have the stock si ecu and i wanted to upgrade to a better ecu. I heard the 88-89 teg ecu's work pretty good..but getting a zc ecu would be better apparently. any feedback on this would be great. also..how much of a hp gain could i expect by upgrading to a teg/zc ecu?? thanks

PM6 (Si) ecu is probably better than 88-89 integra or more or less the same. ZC ecu is PM7... pretty hard to find. PR4 for 90-93 B18a will make it run pig rich...

I heard the integra ecu has a higher fuel output and also a higher redline..?

Well, look at it this way... the PM6 ecu is limited to 7200rpms but with mods can make power all the way to its limit and is used on a sohc 1.6 to make 108hp stock. The 88-89 integra ecu has about the same redline with a dohc 1.6 that makes the same amount of power as the sohc using the PM6.

The PG7 88-89 integra ECU is the next step up... Better fuel maps... But yes, itll run a tad rich, this is fine tho... Better too rich, than too lean... And the PM6 is a tad on the lean side for the DOHC ZC...

so you would recomend going wtih the PG7 if i want the most power? hwo much more power could i expect and how will my gas mileage differ?

dont expect major gain with the pg7 but you will notice the difference. the pg7 has a more agresive fuel map and your car will pull a little longer in high rpm. 3rd gear will feel much better.