what ecu should i run

[Tree]

i'm looking to put a stage two cams in my dohc zc, and i know i need to uograde my timing, valvetrain, cam gears.. but now i'm having tourble find the ecu, i dont know what ecu to run i have seen the pm7,pm6, and om4 ran. which one do i need to run and what system. it is a OBD 0 motor. i was also told to run the OBD1 pr4 or the OBD 1 pr75.

[all-mota]

convert the car to obd1 or use some obd0 tuning software

[RiDinDurRty]

obd1 pr4

[HatchHero]

what pistons are u running?? what compression?? can stock compression run those cams??

[Tree]

i want to keep the stock ecu, but i think i might go with the OBD 1 pr7 with hondata s300

[Tree]

what pistons are u running?? what compression?? can stock compression run those cams??
stock pistions, with 9:5:1 compression

[HatchHero]

wit stock compression i would go stage one

[HatchHero]

is a obd0 car untunable??

[Tree]

from what i know, yes.. and i call the honda speciacest and tom told me to run the obd 1 pr4 or p75

[HatchHero]

ok cool convert to odb1 but i still think those cams are too big

[Tree]

idk what i want to do.. i heard that those are great. what can it do if it is too big?

[HatchHero]

not make much more power than u already got!! big cams like big compression!! save money and get stage one!! believe me dude you will be happy! plus with stage one u wont have to upgrade your valve train! im sure those stage two cams are really good!! on a built high compression bottom end that is

[Tree]

good points..

[ksniperfox]

i forgot the name of the website(i think rywire.com), but google search obd0 to obd1 conversion/wiring harness. you will have to plug your old harness into this new one, then the new harness into any obd1 ecu, independently wire vtec, and buy a new 4 wire oxygen sensor and wire it. i did it in about an hour(and im a noob) with some basic hand tools and a soldering iron. the conversion harness will run about $100, as will the new oxygen sensor. the rywire conversion harness comes with detailed instructions and pictures, and their website also has them online.
if you go to mainstream, they can tune using crome(which is free and just as good as the s300 for your setup).
if you're new to this, just ask scotty about doing the conversion for you. shouldnt be much.
obd0 tuning is obsolete nowadays.

[Tree]

no, i can run the odb 0 wiring with the obd 1 and not have to run the conversion.. thats the pr4 ecu and the p75

[ksniperfox]

no, i can run the odb 0 wiring with the obd 1 and not have to run the conversion.. thats the pr4 ecu and the p75

yeah, you try plugging up a obd1 ecu to you obd0 ecu harness. have fun with that. what do i know, i've only done it.:doh:

[Vteckidd]

First of all, WHAT KIND OF CAR IS IT?

If its a 88-91 EF then you NEED TO CONVERT TO OBD1. Buy a harness from www.boomslang.us

Then buy an ECU from me for $150 , for that engine id give you a P75 Non Vtec. Then you would get the car tuned.

If you already have an ECU that is OBD1, PM me an i will tell you what it costs to chip it.

If the car is OBD1, then all you need it to get an ECU from me to have the car tuned.

Its really easy.

[Vteckidd]

no, i can run the odb 0 wiring with the obd 1 and not have to run the conversion.. thats the pr4 ecu and the p75
whoever told you that is wrong.

OBD0 ECUS work with OBD0 CARS

OBD1 works with OBD1 CARS

they are NOT interchangeable unless you buy a CONVERSION HARNESS

[Vteckidd]

If you are trying to run the STOCK ECU there really isnt a STOCK ECU for the DOHC ZC. You are better off running the CRX SI PM6 IF YOUR CAR IS OBD0

If for some reason you have this motor in a OBD1 car (92-95) then Tom is correct, the closest thing to it is a LS ECU which would be PR4 or P75

but why keep stock ecu if you are planning on mods?

[HatchHero]

i tellin u guys u better listen