Upgrading fuel system?

[onelowgst98]

hey guys im ready to upgrade my injectors since i just put a evo 16g on my car its a 1998 gst automatic. I still have the factory boost guage in the car and when it says full boost the car like kinda back fires so i was told its the injectors? do you guys know what size i should get? and should i upgrade my fuel pump also? thanks guys

 

[RadDsm]

You need to get a real boost gauge before you drive the car again.

 

[Billiam]

Get a AEM wideband while your at it, if your upgradeing injectors I would recomend a new fuelpump. Carefull when you are undoing hoses on the sending unit, I broke my sending unit and my car was down for months

 

[onelowgst98]

i just got one today just have to install it. but my boost level shouldnt have raised right? it should be still the same as stock right?

 

[2GbTalonGuy]

Did you install a MBC? If not then yeah, it should be set to 10PSI still.

 

[onelowgst98]

no i havent what kind of injectors should i get im not tryna go crazy not building a race car just tryna upgrad it

 

[2GbTalonGuy]

I would go with some EVO 560's. There are some in the classifieds rite now.

P.S. The shift key and punctuation is your friend.

 

[Texas gst]

Correct me if I'm wrong, I thought if you put injectors you need a mgt system of some sort? The ecu does not know that bigger injectors are getting put in. ??

 

[nek]

Yeah Im with you. Your hitting fuel cut because of boost creep so even when you get your new injectors, your system will detect to much airflow (because it thinks your still stock) and cause you to hit fuel cut.

 

[Texas gst]

Forgot. ^^ +1 boost gauge. Should have been bought on your way home after buying the car.

 

[livedsm4g63]

Bigger injectors = Time to tune. You cant just slap them in and expect it to run well.

 

[TSI from Hell]

Get an mbc, real boost gauge, some evo 3 injectors, a larger fuel pump and a tune. Until that please park the car!

 

[iBoostDSM]

This is a good website for figuring out what to get. It has the parts to if you want to get them.

Road Race Engineering's Eclipse Fuel Delivery Upgrades

 

[onelowgst98]

I have a pretty bad exhaust leak where the turbo and manifold meet. Would that cause a boosting problem? i know im not getting the full effect of the 16g. Now i have to find a place heree in Md to tune the car

 

[Texas gst]

yes it will affect your boost

 

[onelowgst98]

ok thanks guys im gonna start at the exhaust leak and work from there