Optimax and Efi same thing?

Btuvi

Petty Officer 2nd Class
Joined
Aug 4, 2008
Messages
179
Is a 150 EFI and 150 Optimax the same thing?

Thanks
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Optimax and Efi same thing?

No. the EFI injects fuel mix into the air stream going into the crankcase. The Optimax is direct injected; fuel is injected directly into the cylinder.

The opti is much more fuel efficient and cleaner.
 

Btuvi

Petty Officer 2nd Class
Joined
Aug 4, 2008
Messages
179
Re: Optimax and Efi same thing?

Thanks, JB. It makes me proud that I presented a question that could be answered. Apparently that is not the case in some of my posts.
 
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