Hey all, was thinking about doing the blue spring upgrade this weekend but had a question. What exactly does it do and how does it benefit my truck?

 

raises fuel presure and some say better throttle response. but if ur tuned you prob wouldnt notice the throttle response. someone else will chime in and explain it in better detail but that the just of it.

 

The biggest benefit would be keeping your fuel pressure above 45 psi at WOT and saving the life of your injectors.

 

Okie dokie, well I guess i will do that this weekend then. Thanks gents!

 

Does anyone have a "how-to" link to check fuel pressure? Do I just buy a gauge at Napa?

 

Gauge at nappa

 

You will need that adaptor to go from 1/8" to metric with O-ring
For the life of me I can't recall the size of the silly thing.
If you search you will find a post that will tell you.
OR some nice person will post it here for you.

One other thing DON"T screw it in too tight you could crack the housing.
Just enough to seal it because it does have an O-ring

Sean

 

^^^^---nice guy

Fuel pressure test port thread fitting size is M12x1.5. Most gauges are 1/8" NPT

 

Awesome! Obviously has to be with the truck running I assume, do I need to give it throttle or what? Lol kind of a newb with this test.

 

A lot of times it will be good (45+) at an idle, but drop below that at wide open throttle. It should stay above 45 at all times.

 

Actually, this is from the Tech Folder:

Recommended readings - Temperatures and Pressures

STOCK READINGS
Normal Severe Service Alarm
Tranny Temp 150 - 195 195 - 200 220
Coolant Temp 190 - 200 200 - 215 215+
Fuel Press 60 - 50 50 - 45 45
EGT - pre Turbo 650 - 1200 1200 - 1250 1300
EGT - post Turbo 700 900 1000
Boost 0 - 26 27 - 28 28
Oil Temp 200 - 215 215 - 230 230+


READINGS WITH TUNERS
Normal Severe Service Alarm
Tranny Temp 150 - 195 195 - 220 230
Coolant Temp 190 - 215 215 - 220 220+
Fuel Press 60 - 50 50 - 45 45
EGT - pre Turbo 650 - 1200 1200 - 1300 1300
EGT - post Turbo 700 900 1000
Boost 0 - 26 27 - 30 30+
Oil Temp 200 - 230 230 - 235 235+