compressor surge

[lucasoil4u]

1996 eagle talon tsi, evo 3 big16, 1g blowoff valve, fmic, external dump, 3 inch exhaust, apexi neo, greddy boost controller, greddy turbo timer, walbro 255lph. I recieved this car from someone and when ever you turn the boost over 13 psi it bucks and coughs and spits... do you think that i need bigger injectors i dont know what is in there now. let me know what you think .

[tpunx99GSX]

Why does your info under drives say "Talon TSI evo 3 25psi if you cant boost over 13?

Have you checked for boost leaks? 13 psi "shouldnt" be hitting fuel cut. i would check for leaks. Also check your settings on the neo, and what are you using for logging? Suggest getting a logger.

[Shane@DBPerformance]

Apexi Neo doesn't work right on DSMs or any Karmen cars. It could still use 550cc injs, a boost leak test and a tune though. It might need new spark plugs and/or have a boost leak. But there is a known problem with the Neo on DSMs, Evos, 3000GTs, etc and Apexi has been trying to fix it.

[lucasoil4u]

how do i do a boost leak test???? im on like the 3rd set of plugs in 3 days... it was in the car when i got it. what else would be affordable like that?

[lucasoil4u]

oh and 99gsx it will go to 28 spitting and coughing.

[Kracka]

25-28psi on pump gas spitting and coughing...might want to start shopping for a new engine LOL

Take the above advice by doing a boost leak test then replace that Neo with an older version S-AFC and get yourself a professional tune.

[GsXtUrBo98]

DSM LINK!!! Boost leak test, tune!!

[cmspaz]

http://www.vfaq.com/mods/ICtester.html
^^There's your boost leak test, Ryan^^

What you've got sounds like fuel cut to me, though... So I'd run it at 13 until you can get an AFC that'll work, or preferably, DSM Link.

[Kevin 1G Drummer]

You also might wanna figure out which injectors are in the car now before you go buying new ones.

[95talonracer]

Boost leaks, bad or no tuning. You NEED a wideband to tune and some way to see knock. Good luck.