The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Boost Leakage?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Mooney

Probationary Member
11
0
May 9, 2004
Simi, California
Hey guys ya i just bought my 90 gsx about a week ago and i think i have boost leakage.
Right now it has a replaced stock turbo from factory with about 30k on it. It has an Dejon Tool UICP with stock BOV. I check all the fittings on the intercooler and didnt see any leaks. But when i boost all it goes up to is 9psi. Is that stock? I heard from my friend that had a dsm(90 gst) a few years back said that his boosted 14psi stock. Am i getting boost leakage or is my friend full of BS?

thanks

David MOoney :D
 
If you're reading the stock gauge, don't. It's inaccurate and doesn't mean anything.

If you're looking at an aftermarket gauge, yes, you probably have a leak.
 
unless its a huge leak... you will never just "see" it. Also, when installing anything to do with IC and IC pipes its always a good idea to do a leak test before thinking that your job is done. Make a leak tester and know for sure.
 
ya i'm reading it off a autometer boost gauge.. How would i do a leakage test?

thanks

David MOoney.
 
If you have a manual boost controller, then you might want to try turning the boost up via the knob. If not, then you probably have a boost leak somewhere. Build the leak tester, it is very inexpensive to fabricate, and with a little bit of soapy water you'll be able to pinpoint where the leak is occuring at. If your really lazy you can just BUY one of these leak testers from http://www.machv.com (its listed under the oem/maintenace section) for $21.00
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 4G63 3 inch Magnaflow SS high flow cat
    3 inch Magnaflow stainless cat. High flow. 18.25 inches. Flange holes are 4 1/8 center. Has...
    • Galant665
    • Updated:
  • For sale 4G63 Forge Motorsports BOV
    Original Forge Motorsports bov. Adjustable with over 80 clicks on the dial. Nice to use for...
    • Galant665
    • Updated:
  • Wanted 1g 1991 Black Cherry Eagle Talon
    5-speed
    • bamatalon
    • Updated:
    • Expires
  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
Back
Top