AdamB
Petty Officer 1st Class
- Joined
- Aug 26, 2004
- Messages
- 251
Re: Dennis Moore performace Books
Dave,<br />GM TPI systems use open loop/ close loop, PE mode etc. You just have to get your chip or EEPROM programed to ignore the O2 sensors. The easiest way to do it is to use PCM set to Speed density and use engine vacuum as reference to maintain the AFR you want. Would take some tweaking to get it right... but since you can buy parts in junk yards for almost nothing it would be fun to play with. Oh, you have to watch what year your motor is, and what year TPI system you get. GM switched the way they angled the bolt pattern. Also, the older TPI had a 9th cold start injector, if you get one of these TPI units, just program it out and get a block off for the hole. I still plan on checking with USCG to see if this would be legal...<br /><br />Adam,<br />would like to hear more about your carb to TPI conversion. Maybe a new thread would be in order.<br /><br />I don't know much about the Corvette EFI systems, but I do know marine systems well. Assuming that the Corvette system in speed/density system and not mass air flow. How will you address the missing input from the O2 sensor?<br />Dave
Dave,<br />GM TPI systems use open loop/ close loop, PE mode etc. You just have to get your chip or EEPROM programed to ignore the O2 sensors. The easiest way to do it is to use PCM set to Speed density and use engine vacuum as reference to maintain the AFR you want. Would take some tweaking to get it right... but since you can buy parts in junk yards for almost nothing it would be fun to play with. Oh, you have to watch what year your motor is, and what year TPI system you get. GM switched the way they angled the bolt pattern. Also, the older TPI had a 9th cold start injector, if you get one of these TPI units, just program it out and get a block off for the hole. I still plan on checking with USCG to see if this would be legal...<br /><br />Adam,<br />would like to hear more about your carb to TPI conversion. Maybe a new thread would be in order.<br /><br />I don't know much about the Corvette EFI systems, but I do know marine systems well. Assuming that the Corvette system in speed/density system and not mass air flow. How will you address the missing input from the O2 sensor?<br />Dave