When you throttle your car at maybe 1/4 (cruisung) as your RPMs go up does your vaccumm increase. My car steadily increases vaccumm as my engine speed increase when i partial throttle it. If I gun it of course then I go into boost and it's like if i even let off a tiny bit I loose the spool. I think I have a big vaccumm leak cuz 1)idle pressure @ 15 in Hg 2) I can hear a hiss right under my TB next to the battery. Anyone know if there is a vaccumm line running there?.. THanks
Alvin
Star stage I Starion I/C GReddy BOV Nology Wires APEXI EL Boost Gauge Southland Dual Friction Clutch B&M Short Shifter/ Shifter Bushings 17" Axis Wheelsite Mesh - 235/40 Camberkits Eibach Sportlines on KYB AGXs Strut Bars/ GST Rear Sway Bar X-Drills w/ Axxis pads Andy's Front Bumper Stock Skirts Cleared Headlights
#11026, "RE: Turbo guys: Need a lil help" In response to Reply # 0
I idle at around 17in hg. And my boost control vac line is right around that area but, thats just were i routed them. I think most of the vac lines should be behind the intake mani area....
#11027, "RE: Turbo guys: Need a lil help" In response to Reply # 1
I vacuum at 19 once the engine is warm. When its cold, I vac at 15 or so.
The reason why your vacuum lowers as you accelerate partial throttle is because you are letting more air in, which reduces the vacuum pressure in the intake manifold. If you had a boost/vac gauge hooked up without a turbo, the needle would be exactly at "0" at full throttle because the ambient pressure and the intake pressure are equal.
#11028, "RE: Turbo guys: Need a lil help" In response to Reply # 2
I'm talking bout the vaccumm INCREASING say from 5 HG to 10 HG..more vaccumm. I can't seem to find the leak, I know all the vaccumm lines are Tee'd off the back off the manifold, but I don't know what would be near the TB. I tell you sometimes I just feel like selling this POS..if it's not one thing, it's everything.
Alvin
Star stage I Starion I/C GReddy BOV Nology Wires APEXI EL Boost Gauge Southland Dual Friction Clutch B&M Short Shifter/ Shifter Bushings 17" Axis Wheelsite Mesh - 235/40 Camberkits Eibach Sportlines on KYB AGXs Strut Bars/ GST Rear Sway Bar X-Drills w/ Axxis pads Andy's Front Bumper Stock Skirts Cleared Headlights
#11029, "RE: Turbo guys: Need a lil help" In response to Reply # 3
its really not that big of a deal...you shouldnt get angry...if you didnt install or atleast now how to install something on your car( and how it works completely) than you shouldnt have bought it in the first place. take the turbo off of take it to a technician.
#11030, "RE: Turbo guys: Need a lil help" In response to Reply # 4
Dude...check it out. Just check all your vaccume lines. It's that simple. Don't get mad...cause that's not going to solve anything. There are not that many lines to the kit. If you still can't find what's wrong, change the lines. If that's not the problem...take it to a place where they install turbo kits. They will help you. Or... just keep posting here asking people, someone on this board has had that problem, or something similar!! Now that I think of it...check your boost gauge! I've had mine leak there befor Good luck!!!
Ball Bearing Star Stage II "Power is nothing without control"
I use to have a White 99 GS Sport with a Star Stage II Ball Bearing T3/T4 turbo...it was fun untill....well those who remember me know Oh Ya...this is what I have now... a 99' GSX...
#11031, "RE: Turbo guys: Need a lil help" In response to Reply # 4
LAST EDITED ON 22-Oct-01 AT 05:18 AM (PST)
...if >you didnt install or atleast >now how to install something >on your car( and how >it works completely) than you >shouldnt have bought it in >the first place. take the >turbo off of take it >to a technician.
Shut up already! What the f*ck kind of constructive comment is that? Why dont you tell him why he has increasing vacuum under throttle since no one else seems to know how this sh*t is happening and its no big deal. I'm sure you know completely how everything on an automobile works otherwise you should walk (but I guess you know how the body functions completely too).
Perf: KYB AGX Struts Neuspeed Sport Springs 5 Strut Bars (2 F/U, F/L, R/U, R/L) Sprint Front Camber Kit $15 Rear Camber Kit MSD DIS-2 Ignition System Some Regrind Cams that need High Compression (which I don't have) Ported Intake Manifold Ported Throttle Body Nameless Cold Air Intake with a K&N Filter Custom 2 1/2 inch exhaust with Dual DTM Muffler Empty Catalytic Convertor Energy Suspension Motor Mount inserts Hurricane_GS Short Shifter Symborsky Shift Kit Clutchmasters Stage 3 Modular 225/50/16inch Wheels and Tires
Audio: Alpine CD Head Unit Alpine Flex4 25W X 4 for Fronts and Rears Alpine V-12 450W X 1 for Subs Infinity Reference Series 5 1/4 and 1 inch tweeter component systems for fronts and rears Blaupunkt 3 way 6x9's in the rears 3 MTX 5000 10" 12 ohm subs running 4 ohms mono
Flame Red SRT-4 GT40,8.5:1 Built Shortblock, Brian Crower Stage 2 Cams, etc etc etc...
#11033, "RE: Stan, You kick ass!!!!" In response to Reply # 7
If it's near the throttle body and there are no lines there, I'd suspect the throttle body - intake mani gasket or the line that comes off the top of the throttle body, hooks a 90* turn and heads toward the drivers side.
Nothing to be mad about. Relax, smaoke a cogarette, get some sleep, them go mess with it.
_____________________________________________ -Dino Yancey Hello me, it's Me Again!
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#11036, "RE: Stan, You kick ass!!!!" In response to Reply # 7
hey alvin, your vacuum is rising as you increase throttle? that's weird. i know that vaccum is supposed to lower as you increase throttle. are you measuring this with your boost gauge? i know that there is a idle control servo behind the throttle body, and if that is not working you may have some funny vacuum problems cause the servo may be opening and closing at the wrong times. the only vacuum line i know of at the throttle body is the one that goes to that evap canister thing, that is on the top of the throttle body. when i am at cruise and i increase throttle my vacuum will drop then increase a little until boost comes on then it will eventually go to boost, but like dino said the only vac line is on top of the throttle body, and if there is a leak it may be coming from there or the seal between the idle control servo and the throttle body. hope this helps some, lates james
Well found the leak..the dreaded EGR pipe melted the vaccumm line to the EGR transducer. Still getting the 15 in Hg and increased vaccumm under partial throttle. Oh and Fullserve I bet you're the cocky type dat thinks you know everything. Why tha hell do you think everyone's on this board for?..Uh, maybe cuz we don't know how things work and need some help. FYI I work on my car, yes i get my little paws dirty and know alot bout OUR cars. If you don't know what it's like breaking shit all the time then you haven't spent much time on your car, yes it's true. So step off.
ALvin
Star stage I Starion I/C GReddy BOV Nology Wires APEXI EL Boost Gauge Southland Dual Friction Clutch B&M Short Shifter/ Shifter Bushings 17" Axis Wheelsite Mesh - 235/40 Camberkits Eibach Sportlines on KYB AGXs Strut Bars/ GST Rear Sway Bar X-Drills w/ Axxis pads Andy's Front Bumper Stock Skirts Cleared Headlights
-Michael 1999 GS Eclipse Soon to be Stage 5 GS-X'd Wanted: :Sensei type 1 bumper :Blitz style 2 sideskirts :and help finding a bumper that will look good with the above combination..
turbo8u: "jiggle jiggle then vroom vroom pshhhh" -Mike Pruett 2gnt member# 976 MOPAR Stage 2 SRTForums.com member #37 (Yeah, I signed up when it first came out, and ended up getting one, cool huh?) "The object of war is not to die for your country but to make the other bastard die for his." - General George Patton (1885-1945)
I read 15.517 in hg from my map sensor on idle after warm up.. is that bad cause my car runs fine. All new vaccume lines and all checked and tightened so I dont think there would be a leak, none you can hear, see, or feel running my hands down the lines... -- Brad Rickard 98 GS HRC Stage V (nuff said)
Search
Printer-friendly copy
0 Users in Chat
Good luck!!!
1997 RS
