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topic #59707

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Subject: "boosting problems"

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siueclipse	Oct-29-03 04:20 AM
Member since Nov 28th 2002 3504 posts,

#59707, "boosting problems"

Well... last night I drove to st louis, (smoked an rsx-s, hehe).. anyway.. on the way home i noticed i wasn't making boost. I am making maybe 2 or 3 pounds of boost and thats it.

This morning I check my turbo, its fine, normal play for a 20g, no scrapes.. looks fine.. i check a few of the boots for the IC piping, they looking fine. Checked the bov to see if it was leaking.. It doesn't sound or feel like its leaking, but when you rev it.. the amount of air that comes out is no where near what it used to be. I have 2 more IC boots to check, but i have to take the bumper off for that.

My question is.. If all the boots are fine, could it be a problem with the turbo? The 20g is internally wastegated. Can a turbo just stop making boost?

Any other suggestions?

Thanx
James

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Replies to this topic

RE: boosting problems, grain, Oct-29-03 04:30 AM, #1

RE: boosting problems, siueclipse, Oct-29-03 04:38 AM, #2

RE: boosting problems, grain, Oct-29-03 04:44 AM, #3

RE: boosting problems, siueclipse, Oct-29-03 04:53 AM, #4

RE: boosting problems, Mattchew, Oct-29-03 04:57 AM, #5

RE: boosting problems, siueclipse, Oct-29-03 05:01 AM, #6

RE: boosting problems, Ryan_Hes, Oct-29-03 05:16 AM, #7

RE: boosting problems, siueclipse, Oct-29-03 05:23 AM, #8

RE: boosting problems, siueclipse, Oct-29-03 06:41 AM, #9

RE: boosting problems, jsupetran, Oct-29-03 04:56 AM, #10

RE: boosting problems, siueclipse, Oct-29-03 05:00 AM, #11

RE: boosting problems, Mattchew, Oct-29-03 04:56 AM, #12

RE: boosting problems, siueclipse, Oct-29-03 05:01 AM, #13

RE: boosting problems, Mattchew, Oct-29-03 05:20 AM, #14

RE: boosting problems, grain, Oct-29-03 06:49 AM, #15

RE: boosting problems, Kirby, Oct-29-03 07:30 AM, #16

RE: boosting problems, siueclipse, Oct-29-03 09:15 AM, #17

RE: boosting problems, Eclipse2NR, Oct-29-03 09:22 AM, #18

RE: boosting problems, whodatt1, Oct-29-03 10:34 AM, #19

RE: boosting problems, siueclipse, Oct-29-03 11:28 AM, #20

RE: boosting problems, turbo8u, Oct-29-03 12:14 PM, #21

RE: boosting problems, Eclipse2NR, Oct-29-03 12:16 PM, #22

RE: boosting problems, siueclipse, Oct-29-03 12:31 PM, #23

RE: boosting problems, Team

Team

XtremeRS, Oct-29-03 02:08 PM, #24

RE: boosting problems, pn0ymahal, Oct-29-03 05:08 PM, #25

grain	Oct-29-03 04:30 AM
Donating 2GNT member 2551 posts,

#59708, "RE: boosting problems"
In response to Reply # 0

maybe the intercooler leaking? never had a problem like this. either mine boosts, or it dosent.

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siueclipse	Oct-29-03 04:38 AM
Member since Nov 28th 2002 3504 posts,

#59709, "RE: boosting problems"
In response to Reply # 1

Originally posted by grain
maybe the intercooler leaking? never had a problem like this. either mine boosts, or it dosent.

i suppose the ic could be leaking, but its not like i hit anything with it. haha

james

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grain	Oct-29-03 04:44 AM
Donating 2GNT member 2551 posts,

#59710, "RE: boosting problems"
In response to Reply # 2

maybe the boost controller isnt working? maybe try sticking the line from the compressor housing to the wastegate, and i guess thats a 9# spring? i dunno.

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siueclipse	Oct-29-03 04:53 AM
Member since Nov 28th 2002 3504 posts,

#59711, "RE: boosting problems"
In response to Reply # 3

if the boost controller wasn't working, then the wastegate would at least do 5lbs of boost. the wastegate is set for 5lbs.. actually it goes to 7

james

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Mattchew	Oct-29-03 04:57 AM
Member since Oct 23rd 2003 340 posts,

#59715, "RE: boosting problems"
In response to Reply # 4

Originally posted by siueclipse
if the boost controller wasn't working, then the wastegate would at least do 5lbs of boost. the wastegate is set for 5lbs.. actually it goes to 7 james

Is your wastegate flapper stuck open? I have heard of people having thiers sick open before.

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siueclipse	Oct-29-03 05:01 AM
Member since Nov 28th 2002 3504 posts,

#59718, "RE: boosting problems"
In response to Reply # 5

Originally posted by Mattchew

Originally posted by siueclipse if the boost controller wasn't working, then the wastegate would at least do 5lbs of boost. the wastegate is set for 5lbs.. actually it goes to 7 james

Is your wastegate flapper stuck open? I have heard of people having thiers sick open before.

ill check that out

james

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Ryan_Hes	Oct-29-03 05:16 AM
Old School 2GNTer 3450 posts,

#59719, "RE: boosting problems"
In response to Reply # 4

Originally posted by siueclipse
if the boost controller wasn't working, then the wastegate would at least do 5lbs of boost. the wastegate is set for 5lbs.. actually it goes to 7 james

If this is the case, you could hit only 2 or 3 psi because there is a pressure loss through the IC, even if your wastegate is set for 5...but if I had to guess you problem just have a coupling blown.

______________________________

Ryan
IRyanHester@Hotmail.com

'03 Mazda 6s

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siueclipse	Oct-29-03 05:23 AM
Member since Nov 28th 2002 3504 posts,

#59721, "RE: boosting problems"
In response to Reply # 7

Originally posted by Ryan_Hes

Originally posted by siueclipse if the boost controller wasn't working, then the wastegate would at least do 5lbs of boost. the wastegate is set for 5lbs.. actually it goes to 7 james

If this is the case, you could hit only 2 or 3 psi because there is a pressure loss through the IC, even if your wastegate is set for 5...but if I had to guess you problem just have a coupling blown.

it probably is (hoping) just a coupler, we'll see.. ill have to take it all off tonight.. GRRRRRRRRR

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siueclipse	Oct-29-03 06:41 AM
Member since Nov 28th 2002 3504 posts,

#59725, "RE: boosting problems"
In response to Reply # 8

well.. i checked the boost controller by taking it out of the loop. still no boost. actually less than before.

i check all the IC piping and boots. No problems. I took off the turbo outlet IC pip and massive amounts of air is coming out. I dont think the turbo has a problem.

Im starting to lean to the BOV. It doesn't leak when reving but maybe under load its leaking. Im unsure. Ive had a funny feeling with the BOV over the last month. Maybe its shot.

james

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jsupetran	Oct-29-03 04:56 AM
Member since May 04th 2002 4359 posts,

#59713, "RE: boosting problems"
In response to Reply # 3

is the turbo getting oil?

-------jezreel
hrc stage 1, sfmu, ml, prokits, egt, boost gauge, apexi tt, costum dp, dynotune fp gauge. gst muff, turbo spoiler

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siueclipse	Oct-29-03 05:00 AM
Member since Nov 28th 2002 3504 posts,

#59716, "RE: boosting problems"
In response to Reply # 10

Originally posted by jsupetran
is the turbo getting oil?

yes the turbo has plenty of oil. i even checked the shaft this morning and its fine.

james

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Mattchew	Oct-29-03 04:56 AM
Member since Oct 23rd 2003 340 posts,

#59714, "RE: boosting problems"
In response to Reply # 1

You would be surpised what can put a hole in an intercooler. Even a rock thrown from another car can do it. Happend to a buddy of mine. The big thing is check those boots under the bumper, but usually if you have blown off a boot completely the car wont idle well either.

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siueclipse	Oct-29-03 05:01 AM
Member since Nov 28th 2002 3504 posts,

#59717, "RE: boosting problems"
In response to Reply # 12

Originally posted by Mattchew
You would be surpised what can put a hole in an intercooler. Even a rock thrown from another car can do it. Happend to a buddy of mine. The big thing is check those boots under the bumper, but usually if you have blown off a boot completely the car wont idle well either.

ill check the IC tonight, ive had boots come off before, the car idles just fine. maybe with a 4g63 it wont idle correctly but with a 420a, it will idle fine.

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Mattchew	Oct-29-03 05:20 AM
Member since Oct 23rd 2003 340 posts,

#59720, "RE: boosting problems"
In response to Reply # 13

Originally posted by siueclipse

Originally posted by Mattchew You would be surpised what can put a hole in an intercooler. Even a rock thrown from another car can do it. Happend to a buddy of mine. The big thing is check those boots under the bumper, but usually if you have blown off a boot completely the car wont idle well either.

ill check the IC tonight, ive had boots come off before, the car idles just fine. maybe with a 4g63 it wont idle correctly but with a 420a, it will idle fine.

You have a point. I have both and I've only had the pipes come off on my GSX.

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grain	Oct-29-03 06:49 AM
Donating 2GNT member 2551 posts,

#59726, "RE: boosting problems"
In response to Reply # 14

james, what kind of bov do you have? if its adjustable, try setting it at the tightest it will go. i have the turbo xs rfl-h and i have it tighted down all the way, to make sure it dosent leak.

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Kirby	Oct-29-03 07:30 AM
Donating 2GNT member 2181 posts,

#59729, "RE: boosting problems"
In response to Reply # 15

Get a pcv pipe and cap drill a hole in the cap and insert a tire valve. Put it on the turbo inlet and put about 16-20 LBS of pressure in the system, then lister for the leak.

I edited to the wiki!

Originally posted by DR1665
NOTE TO SELF: Go commando to wedding. Scar the Irishman for life.

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siueclipse	Oct-29-03 09:15 AM
Member since Nov 28th 2002 3504 posts,

#59733, "RE: boosting problems"
In response to Reply # 16

yeah. i just did the leak test. there are none.

im running a greddy type s bov.

im starting to get frustrated.

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Eclipse2NR	Oct-29-03 09:22 AM
Member since Nov 25th 2002 581 posts,

#59734, "RE: boosting problems"
In response to Reply # 17

Did you check the wastegate actuator arm (if internally gated)? Mine lost it's little E-clip and the arm fell off the lever, and made like 2 psi of boost.

1996 Eclipse RS / 5-Speed / Aerogear Body / Coated in Magnetic Red Metallic rev.2 / T3 Turbo Intercooled @ 8 psi / More at http://home.insightbb.com/~mgalyan/
Mark Galyan - Indianapolis, Indiana

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whodatt1	Oct-29-03 10:34 AM
Donating 2GNT member 2531 posts,

#59744, "RE: boosting problems"
In response to Reply # 18

if you can't hear any boost leaks I would lean toward the westgate being stuck open.

-97 GS (First project, 299 whp)(sold)
- 97 RS 2.6 last numbers: 306hp, 352tq @16psi (Dead, parted out)
- 99 GS OZ, Hahn Kit, 56k miles (Sold)
--------
- 00 Nissan Maxima GLE (Daily Driver)
- 02 Audi A4 1.8T Quattro

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siueclipse	Oct-29-03 11:28 AM
Member since Nov 28th 2002 3504 posts,

#59750, "RE: boosting problems"
In response to Reply # 18

Originally posted by Eclipse2NR
Did you check the wastegate actuator arm (if internally gated)? Mine lost it's little E-clip and the arm fell off the lever, and made like 2 psi of boost.

ding ding ding.. we have a winner.. i can't believe all the trouble i went through just to find out it was that stupid pin that came off the actuator arm.

james

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turbo8u	Oct-29-03 12:14 PM
Member since Jun 15th 2003 10552 posts,

#59758, "RE: boosting problems"
In response to Reply # 20

Originally posted by siueclipse

Originally posted by Eclipse2NR Did you check the wastegate actuator arm (if internally gated)? Mine lost it's little E-clip and the arm fell off the lever, and made like 2 psi of boost.

ding ding ding.. we have a winner.. i can't believe all the trouble i went through just to find out it was that stupid pin that came off the actuator arm. james

n00b

_________
96 talon esi-t
san clemente, ca

turbo8u> you suck
Uberingram> i know
turbo8u> oh

SaberKhan> Someone needs to snatch that GST of yours up and give you your Cavalier back.

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Eclipse2NR	Oct-29-03 12:16 PM
Member since Nov 25th 2002 581 posts,

#59759, "RE: boosting problems"
In response to Reply # 20
Oct-29-03 12:17 PM by Eclipse2NR

Glad to be of help. That happened to me after like the 3rd day of having the turbo kit. I bought some more clips, put the arm back on. The clips didn't fit, and now I can't even get the arm back off... hehe.

1996 Eclipse RS / 5-Speed / Aerogear Body / Coated in Magnetic Red Metallic rev.2 / T3 Turbo Intercooled @ 8 psi / More at http://home.insightbb.com/~mgalyan/
Mark Galyan - Indianapolis, Indiana

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siueclipse	Oct-29-03 12:31 PM
Member since Nov 28th 2002 3504 posts,

#59763, "RE: boosting problems"
In response to Reply # 22

i used a cotter pin

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XtremeRS	Oct-29-03 02:08 PM
Member since May 20th 2003 6329 posts,

#59766, "RE: boosting problems"
In response to Reply # 23

Hehe, yeah same shit happend to me before too..I was like WTF? Then saw the wastgate arm just chillin there emoji Stupid pin.. also used a cotter pin to fix it.

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

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pn0ymahal	Oct-29-03 05:08 PM
Donating 2GNT member 2621 posts,

#59776, "RE: boosting problems"
In response to Reply # 24

yah, happen to me the pin came out a long time ago and i was all piss.
cool deal
Michael
99gs
HRC Stage IV 8-Injector Setup
2GNT Member #32

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