tell me what yall think
- Thread starter enyce223
- Start date
Originally posted by DOHCDX
that's not my point at all.... you wouldn't use an OBD2 ecu for CRVTEC/LSVTEC in an OBD1 car
why wouldnt you??if CRVTEC are only obd2 then how can you use a obd1 ecu for it?
first off, let me state that i am assuming the CRVTEC is being installed in an OBD1 vehicle.... with that said:Originally posted by BioHazard
why wouldnt you??if CRVTEC are only obd2 then how can you use a obd1 ecu for it?
the CRVTEC is not an OEM motor. so, you will not be able to engage VTEC with the CRV ECU. obviously, it's a non-VTEC ecu. technically you should be able to run it with either OBD1 or OBD2 ECU. however, because of more strict OBD2 emission requirements, it's easier to run OBD1. besides, it's being installed in an OBD1 car, so you don't need to waste the $$ on a jumper harness.
so, we need to use a DOHC VTEC ecu, or a SOHC VTEC ecu chipped with the appropriate timing/fuel maps to run a DOHC VTEC.
now, the last and most important concern, is that the b20 block (if not properly supported) will NOT rev as high as it's VTEC counterparts. so, if you have an OEM b20 block you SHOULD have the ecu chipped to lower the rev limit to 7200 for the non-VTEC.
$3000 for an si hatch is a pretty good deal (paid 3500 for my dx, but it was damn near flawless) but if your going to swap right away, why not look for a cx? you should be able to get it alot cheaper and its lighter. but i guess your like me and would rather have those rear disk and sunroof over less weight. ohhh, and i see DOHCDX proving he's not a n00b!
ok so then how are you going to run a obd2 engine on a obd1 ecu with out a jumper....no matter what you do your gonna need a jumper even if you use a obd2 ecu....putting a higher obd motor into a lower obd car is going to require a harness....yeah you could use a obd1 ecu, but like you said it must be chipped, so why not just use a obd2 ecu?? ...and yes it has to be a vtec ecuOriginally posted by DOHCDX
first off, let me state that i am assuming the CRVTEC is being installed in an OBD1 vehicle.... with that said:
the CRVTEC is not an OEM motor. so, you will not be able to engage VTEC with the CRV ECU. obviously, it's a non-VTEC ecu. technically you should be able to run it with either OBD1 or OBD2 ECU. however, because of more strict OBD2 emission requirements, it's easier to run OBD1. besides, it's being installed in an OBD1 car, so you don't need to waste the $$ on a jumper harness.
so, we need to use a DOHC VTEC ecu, or a SOHC VTEC ecu chipped with the appropriate timing/fuel maps to run a DOHC VTEC.
now, the last and most important concern, is that the b20 block (if not properly supported) will NOT rev as high as it's VTEC counterparts. so, if you have an OEM b20 block you SHOULD have the ecu chipped to lower the rev limit to 7200 for the non-VTEC.