ScottyUndersteer Posted October 27, 2015 Report Share Posted October 27, 2015 Looking for a pair of stock injectors for an '88. I have a set of Trilogy injectors if anyone wants those but they don't seem to like my otherwise stock setup. Quote Link to comment Share on other sites More sharing options...
Leeintheconquest Posted October 27, 2015 Report Share Posted October 27, 2015 No injectors but a question for if you don't mind. I have trilogies as well, and would like to hear what you are experiencing with them. Thanks. Quote Link to comment Share on other sites More sharing options...
ScottyUndersteer Posted October 27, 2015 Author Report Share Posted October 27, 2015 No injectors but a question for if you don't mind. I have trilogies as well, and would like to hear what you are experiencing with them. Thanks. Idle is a bit rough but no codes to show for it. Partial throttle is fine to redline if I stay out of boost. WOT is quite strong and smooth until around 4k to 4.5k (depending on if the car is heat soaked and what the ambient air temp is), then it stumbles. There's also gas finding it's way into my crankcase. From my understanding, the trilogy injectors are just 2 sizes of Delphi injectors made for MPI applications. The spray pattern is very narrow (20 to 30 deg fan) as compared to the stock injectors (70 to 80 deg) which results in crummy atomization, incomplete burning, then gas puddles around the intake valves and subsequently finds its way down to the bottom end. Word of warning...I'm no expert and this is all a regurgitation of my own research. Quote Link to comment Share on other sites More sharing options...
boostinmini Posted October 27, 2015 Report Share Posted October 27, 2015 I believe I have a set that was just cleaned and tested perfect, I'll be home in the next two days Quote Link to comment Share on other sites More sharing options...
Leeintheconquest Posted October 28, 2015 Report Share Posted October 28, 2015 Hmmm. Thanks Scotty. I have a touch of stumble at low rpm, but good otherwise. Good luck sir. Quote Link to comment Share on other sites More sharing options...
ScottyUndersteer Posted October 28, 2015 Author Report Share Posted October 28, 2015 I believe I have a set that was just cleaned and tested perfect, I'll be home in the next two days Pm'd ya Quote Link to comment Share on other sites More sharing options...
ScottyUndersteer Posted October 28, 2015 Author Report Share Posted October 28, 2015 (edited) Hmmm. Thanks Scotty. I have a touch of stumble at low rpm, but good otherwise. Good luck sir. Is your setup stock or close to it? Also have you had any issues with them in the past? Possibly I'm over-looking something simple? Edited October 28, 2015 by ScottyUndersteer Quote Link to comment Share on other sites More sharing options...
Leeintheconquest Posted October 29, 2015 Report Share Posted October 29, 2015 Other than a down pipe and the injectors she's stock. Rebuilt the TB a few year ago. It did get better with a new fuel pump last fall. Just turned 60K miles. Quote Link to comment Share on other sites More sharing options...
questsale Posted October 30, 2015 Report Share Posted October 30, 2015 stock vs trilogy have a different spray pattern. trililogy is more narrow, and this causes issues Quote Link to comment Share on other sites More sharing options...
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