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.

CAR RUNNING WEIRD. BOOST at 2k?

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

dznuts1993

Probationary Member
6
0
Sep 7, 2011
triadelphia, West Virginia
hi i have a big problem. my car is running kinda weird LOL. heres all i have done to it. a big 16g turbo with internal wastegate, 255lph fuel pump, hard intercooler piping up to intake ( still on side mount), gm maf with translator,boost controller pushing 15 psi , and tial 50mm bov.

everytime i hit the gas in any gear the stock boost gauge says im spooling boost but it seems like its hesitates more then it spools but when it actually starts spooling it spools for a little but cuts and jerks the car. My buddy told me that the stock boost gauge isnt really realible and he is giving me a mmcd to log it. i was just wondering maybe i hooked up something wrong or something. when its idling the stock boost gauge stays at 0 not -7 but if it idling in neutral for 30 seconds it will go to -7 vacuum. i dunnno what it could be seems like it started to do it after i put the tial bov on. btw i wanted to ask if the tial bov had a set psi that it had to run on or the spring wouldnt release the pressure. jw.

( sorry but it wouldnt let me post on any other forum because im new )

thanks everyone!

actually did some research on the tial bov and they have set springs for different vacuum. maybe the one i got has a tighter spring then it should have? how would i know? but the bov came off a eagle talon same year just a little more hp. please HELP!!
 
Interesting, I'd say get your hands on another stock 1g BOV that's in good working order, throw it on and see if the problem goes away. If it does, then you know for sure it is the new BOV you installed that is the issue. If it does not go away after swapping the BOV's then you know it is something else.

i can't answer your other question about the specifics of Tial BOV's as i am not too familiar with them.
 
Dont rely on the stock boost gauge. It isnt accurate.

What are you tuning with? What size injectors? Are you running an fpr? Have you done a boost leak test?
 
ok, i will and ill see if that problem will go away.

and i have stock 450 injectors, i do have a FPR but im unfamilar with them and how to hook them up. do they go on the retreving gas line or returning line? also where does the vacuum line go for it? me and my buddy plan on doing a boost leak test this weekend :D
 
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 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
  • Wanted WTB 2g half rad
    ISO of a 2g koyo half rad or something equivalent.
    • Michael Wucher
    • Updated:
    • Expires
Back
Top