ECM questions - ZR-1 Net Registry Forums

tomtom72 · 09-14-2005

Thanks Kevin! I see there are alot of choices for the secondary replacement injectors. What is with the primaries? I see the machined part of the nozzle(?) necked down but what is the reason? Where does the O-ring go on a primary?

Was that something to do with the "air over" theory in the injector housing? It seems to me that the injector housings must be different on a 90-91-92 motor comparred to a 93-95 motor?

This stuff makes me wish I spent less time learning my holley & more time paying attention to FI developments.

Thanks again for your help!

Tom

09-14-2005	#33
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Choices Thanks Kevin! I see there are alot of choices for the secondary replacement injectors. What is with the primaries? I see the machined part of the nozzle(?) necked down but what is the reason? Where does the O-ring go on a primary? Was that something to do with the "air over" theory in the injector housing? It seems to me that the injector housings must be different on a 90-91-92 motor comparred to a 93-95 motor? This stuff makes me wish I spent less time learning my holley & more time paying attention to FI developments. Thanks again for your help! Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member