yO like the topic, I have a Dual Cam ZC in my 88 Hatch, What size piping should I get, I know for single cams 2 1/4 is good, but for a Dual Cam non vtec ZC motor?
Thanx in advance

 

2 1/4 will suffice for an n/a dohc zc.

 

I was thinkin since its a dual cam use 2.5 ??? Like what u would use for a DOHC VTEC...

 

2.5 might bog you down a bit in the low end. My wife put 2 inch on her REX/ZC and has plenty of low end and it pulls hard all the way to redline. Likewise, I put 2.25 on my D15b vtec and low end....well there isn't much, but top end power is endless. It never levels off, but then again, mine is a vtec and the ZC isn't....