Switch to non vtec without an ecu change?
I have a 97 honda civic ex vtec with a d16y8 motor that's blown. I want to replace it with a d16y7 that doesn't have vtec since it's cheaper and I hardly use it to go fast anyways. I read everywhere that it won't accelerate past 5000 rpm's if the ecu isn't switched and it will also cause a check engine light. I was wondering if there was an easy way to not have to switch the ecu but not have those problems caused.
The biggest problem I've seen with that kind of swap is a extremely rich condition. So rich it will blow coal like a diesel and as low as 5 MPG. You will get a check engine like since the vtec won't be connected because its not there. If you came into my shop, I wouldn't do it unless we replace the ECU.
Thumbs to Stephen, but would like to add, have you considered the D16Y5? It's the VTEC-E engine from that vintage Civic HX. That is a mileage engine with decent power, but you'll be get to getting mpgs in the 40s easily. Since it is VTEC, it is plug and play. Not sure on the prices, but it is a better option than going non-VTEC.
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