etec 150 vs optimax 150

[THEFERMANATOR]

Originally Posted by captpete13

I guess the big reason is that the Etec still carries the FICHT stigma to me. The Opti uses the tried and true 2.5L powerhead that they vastly improved on to get much more fuel economy out of. Fuel pressure is set to 90 psi and is sent to the air injector. Air pressure is set to 80 psi. Then the fuel air mixture is sent into the combustion chamber in an air bubble which supports much better atomization of fuel. Its a great system, once you understand how it works. They also use an automotive style alternator which is much easier to replace in the event of a failure.

The ETEC may still carry the FICHT stigma, but to many the OPTIMAX still carries the OPTIPOP stigma that so many of them were known for from 98-02. As for the air injection, I thought it was set to 120-130 depending upon the engine as the air pressure has to be able to overcome the compression in the cylinder to inject the fuel in. MANY of the failures on BOTH the OPTI's and FICHT/ETEC was due to the fact that DFI was a new technology and they didn't know that they needed a special oil for them. This caused alot of air pump failures in the OPTI's and carbon build-up in the FICHT's. They have gotten alot better in recent years though. Have you considered the YAMAHA 150 4 stroke? Everybody says it is a strong 150(almost 175HP) and has a proven track record. If I had the money to buy a new engine now, but new I couldn't afford a new one when the warranty runs out. 4 stroke would definately be my pick to buy. You do have timing belts and such to worry about with them, but it isn't any different then modern cars with small 4 cylinder FWD engines.