river
15+ Year Contributor
- 282
- 0
- Jun 9, 2004
-
Anchorage,
Alaska
Note, im not stupid, ive been in DSMs for many years, but this has got me puzzled.
I will try to explain as simply as possible what has been happening to my car.
First off, you should know that I have not boost leak tested it yet due to a lack of proper tools to do so.
Here is my mod list (the one in my profile is inaccurate);1991 Eclipse GSX, 255lph HP fuel pump, FIC 650 cc injectors, Aeromotive FPR, stock internals (2G pistons, 1G rods), stock head, magnus sheet metal intake manifold. SBR cast port/polished exhaust manifold, Evo III 16G turbo ported w/ upgrade WG flapper, supra sidemount IC w/ all hard piping/silicone, alcohol injection, GM MAF + MAFT, HKS 272 cams, mitsu metal HG, ARP studs, Shep tranny, ACT 2600 w/ street disc, SBR manual boost controller, 3 turbo back, DSMlink.
I am having a really tough time considering my laptop just broke on me and as soon as it broke, I started running into problems. Im just not sure what problem/s I am running into right now.
While driving the car I can get into boost according to my gauge, but it feels like the car is going nowhere. at ¼ throttle I can get to 15psi on the gauge and the car just feels like it is running without boost, or very very low boost. Sometimes in low throttle situations when im starting to get into what my gauge calls boost the car will buck and I will hear what sounds to be popping noises, then it will studder, then *sometimes* take off into actual real boost like it should. Other times it will studder, pop and still not go into boost. I can go WOT and the gauge will read 20psi, but its a very gradual 25psi. when the car was running right I would fully spool around 4k and have 25psi of real boost. Now, even when I go WOT, I dont see the gauge getting close to even 20psi by 5500! Basically, my car has no power, its not running NA, but almost feels like it. I dont know if these are symptoms of a stuck WG, a major boost leak, a major exhaust leak (which im sure I would hear, but there is nothing), or my MBC isnt working properly, what sounds more probable? Even when its building up boost according to my gauge, the car feels almost NA, like im not even turbod. the BOV still releases what compressed air it is running off of. Im just stumped at this point. Ive tried running w/o alcohol too, trying to see if I was running way too rich with alky and it was causing these problems, but to no avail (note, when doing vaccum driving, the car runs perfectly) Im also having problems at start up, the car will die, then I can start it back up go to drive it and it stutters like the injectors have air or something in them or they are starved for fuel but when the car warms up that problem isnt there anymore. Until it is warm though, the car will die every time I decelerate and come to a stop at a stop light, etc.
Also, why would my gauge read boost if there really isnt any? How am I getting manifold pressure like that?
I will try to explain as simply as possible what has been happening to my car.
First off, you should know that I have not boost leak tested it yet due to a lack of proper tools to do so.
Here is my mod list (the one in my profile is inaccurate);1991 Eclipse GSX, 255lph HP fuel pump, FIC 650 cc injectors, Aeromotive FPR, stock internals (2G pistons, 1G rods), stock head, magnus sheet metal intake manifold. SBR cast port/polished exhaust manifold, Evo III 16G turbo ported w/ upgrade WG flapper, supra sidemount IC w/ all hard piping/silicone, alcohol injection, GM MAF + MAFT, HKS 272 cams, mitsu metal HG, ARP studs, Shep tranny, ACT 2600 w/ street disc, SBR manual boost controller, 3 turbo back, DSMlink.
I am having a really tough time considering my laptop just broke on me and as soon as it broke, I started running into problems. Im just not sure what problem/s I am running into right now.
While driving the car I can get into boost according to my gauge, but it feels like the car is going nowhere. at ¼ throttle I can get to 15psi on the gauge and the car just feels like it is running without boost, or very very low boost. Sometimes in low throttle situations when im starting to get into what my gauge calls boost the car will buck and I will hear what sounds to be popping noises, then it will studder, then *sometimes* take off into actual real boost like it should. Other times it will studder, pop and still not go into boost. I can go WOT and the gauge will read 20psi, but its a very gradual 25psi. when the car was running right I would fully spool around 4k and have 25psi of real boost. Now, even when I go WOT, I dont see the gauge getting close to even 20psi by 5500! Basically, my car has no power, its not running NA, but almost feels like it. I dont know if these are symptoms of a stuck WG, a major boost leak, a major exhaust leak (which im sure I would hear, but there is nothing), or my MBC isnt working properly, what sounds more probable? Even when its building up boost according to my gauge, the car feels almost NA, like im not even turbod. the BOV still releases what compressed air it is running off of. Im just stumped at this point. Ive tried running w/o alcohol too, trying to see if I was running way too rich with alky and it was causing these problems, but to no avail (note, when doing vaccum driving, the car runs perfectly) Im also having problems at start up, the car will die, then I can start it back up go to drive it and it stutters like the injectors have air or something in them or they are starved for fuel but when the car warms up that problem isnt there anymore. Until it is warm though, the car will die every time I decelerate and come to a stop at a stop light, etc.
Also, why would my gauge read boost if there really isnt any? How am I getting manifold pressure like that?
