 5S-FE Stock FPR, Correct me if I'm wrong but... |
  |
 Jun 2, 2013 - 7:37 PM
|
 
|
 Enthusiast  Joined Jan 4, '12 From US Currently Offline Reputation: 6 (100%)  |
... our stock unit is already a Rising Rate FPR, with a static base pressure of 43.5psi correct?
-------------------- 1993 Celica GT Coupe - sold
1994 Celica GT Liftback |
|
Jun 4, 2013 - 8:57 AM
|
|
|
Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
you bring up a good question. i never monitored the stock fuel pressure. lets look at this from an aftermarket perspective. yes you feed a vacuum line to the FPR. that tells me that when you are idling and there is vacuum in the manifold. it actually lowers the fuel pressure, but then as you throttle up the pressure rises.
That being said, lets say you add some boost to the system, will the stock FPR continue to raise the fuel pressure like an aftermarket one? and what is the rate that it does raise the pressure. 1:1? multiplier? I just dont know. the stock FPR in the 3S-GTE looks very similar to the one in the 5S-FE and i believe it is a 1:1 rising rate. Im going to guess that the 5S-FE regulator is a rising type but is limited to what it can do. Meaning once it reached a certain pressure, it wont raise it any more. -------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
|
Jun 5, 2013 - 1:04 PM
|
|
|
Enthusiast Joined Jan 4, '12 From US Currently Offline Reputation: 6 (100%) |
Yeah that's what I was thinking. The 2JZ-GTE is supposedly a rising rate as well.
I wonder how much our stock one goes up to if anything... -------------------- 1993 Celica GT Coupe - sold
1994 Celica GT Liftback |
|
Jun 6, 2013 - 11:04 AM
|
|
|
Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
i think its safe that any factory turbo Toyota is rising
-------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
|
Jun 6, 2013 - 6:47 PM
|
|
|
Enthusiast Joined Jan 4, '12 From US Currently Offline Reputation: 6 (100%) |
I have my suspicion that the 2JZ regulator fits in the 5S rail. You think you could verify that Smaay?
-------------------- 1993 Celica GT Coupe - sold
1994 Celica GT Liftback |
|
Jun 6, 2013 - 11:32 PM
|
|
 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
If it looks like it will fit, it probably will. Toyota use metric fittings across the fuel system, you shouldn't run into any crossthreading issues with imperial/sae mismatching.
-------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
|
Jun 7, 2013 - 1:32 AM
|
|
|
Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
i havent had the stock rail on my supra for years. sorry i cant confirm this. try supraforums and MR2oc.com they might know.
-------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
|
Jun 7, 2013 - 3:32 PM
|
|
|
Enthusiast Joined Jan 4, '12 From US Currently Offline Reputation: 6 (100%) |
QUOTE (delusionz @ Jun 7, 2013 - 12:32 AM)  If it looks like it will fit, it probably will. Toyota use metric fittings across the fuel system, you shouldn't run into any crossthreading issues with imperial/sae mismatching. Yeah that's what I was thinking. Will probably buy one to try it out. QUOTE (Smaay @ Jun 7, 2013 - 2:32 AM) i havent had the stock rail on my supra for years. sorry i cant confirm this. try supraforums and MR2oc.com they might know. That sucks, thanks anyway. -------------------- 1993 Celica GT Coupe - sold
1994 Celica GT Liftback |
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
| Lo-Fi Version | Time is now: February 21st, 2025 - 8:57 AM |