wolfie359
10+ Year Contributor
- 72
- 0
- Jan 30, 2010
-
Roseville,
Minnesota
I'm REALLY new to turbos, but have been learning a lot fast. I just picked up my 98 Eclipse GS that I thought was a GST but its got an aftermarket turbo setup on a 420a. Got it for a great price and runs and drives great with no check engine lights.
The engine has obviously been redone at some point just looking at certain pieces. Only drawback is I don't know with what parts. I just put a new turbo on it, same T3/T4 hybrid, but dropped it from a 60 trim to a 50, still don't know what the heck trim means, old turbo was leaking oil badly! Also just put in a 0.060" oil restrictor to the turbo. Currently running about 5-8lbs boost.
Problem is: I can only use about 1/2 the gas pedal or it bogs out really bad... Doesn't misfire or anything, just on the line goes from FULL power to NO power. I was thinking maybe injectors or possibly the MAP sensor. Kinda hard to be testing fuel pressure while driving down the road, but I'm noticing no sound change from the fuel pump when it happens. Considering picking up FIC 850cc injectors, but I have no clue what cc's I should really be getting. I wanna go with E85 at some point. I'm not looking for a massive power/speed daemon, but I would like to have all of my pedal back. 300-350whp is plenty for now.
Okay... so... Theres this little black box that was hand made from chips and parts from Radio shack. Theres a resistor, 8 pin ceramic chip, and a voltage chip of some sort. 4 wires go to the box, and looks like its connected to the MAP sensor? Any idea why this would be done?
Any ideas? This is the little black box I was talking about. I guess its like a 12 pin chip.
The engine has obviously been redone at some point just looking at certain pieces. Only drawback is I don't know with what parts. I just put a new turbo on it, same T3/T4 hybrid, but dropped it from a 60 trim to a 50, still don't know what the heck trim means, old turbo was leaking oil badly! Also just put in a 0.060" oil restrictor to the turbo. Currently running about 5-8lbs boost.
Problem is: I can only use about 1/2 the gas pedal or it bogs out really bad... Doesn't misfire or anything, just on the line goes from FULL power to NO power. I was thinking maybe injectors or possibly the MAP sensor. Kinda hard to be testing fuel pressure while driving down the road, but I'm noticing no sound change from the fuel pump when it happens. Considering picking up FIC 850cc injectors, but I have no clue what cc's I should really be getting. I wanna go with E85 at some point. I'm not looking for a massive power/speed daemon, but I would like to have all of my pedal back. 300-350whp is plenty for now.
Okay... so... Theres this little black box that was hand made from chips and parts from Radio shack. Theres a resistor, 8 pin ceramic chip, and a voltage chip of some sort. 4 wires go to the box, and looks like its connected to the MAP sensor? Any idea why this would be done?
Any ideas? This is the little black box I was talking about. I guess its like a 12 pin chip.
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