Fueling issues?
Moderators: Helpinators, Moderators
Fueling issues?
okies...so I have this setup on my EJ22T swap.
XSPOWER (Stone Racing/SSAutochrome) header/uppipe; 4-1 header coated/wrapped
3" bellmouth downpipe (x3Racing) coated/wrapped
3" catback
Freshly rebuilt TD04L
'02 WRX TMIC
'02 WRX fuel pump
I plan to be boosting @ 12.75lbs at the borderline of the BOOST CUT with this WRX turbo. Will I be running into any fueling issues? Even if the EJ22T injectors are reading 90% duty cycle, will the a/f still be slightly on the rich side? I may have to run a RRFPR to up it. I've hear the SVX has a higher pressure fuel pressure regulator, true? Fitment?
What about MAF issues? I have the BLACK MAF and was wondering if putting that on will solve anything?
Engine management I'm just running the STOCK EJ22T ECU.
XSPOWER (Stone Racing/SSAutochrome) header/uppipe; 4-1 header coated/wrapped
3" bellmouth downpipe (x3Racing) coated/wrapped
3" catback
Freshly rebuilt TD04L
'02 WRX TMIC
'02 WRX fuel pump
I plan to be boosting @ 12.75lbs at the borderline of the BOOST CUT with this WRX turbo. Will I be running into any fueling issues? Even if the EJ22T injectors are reading 90% duty cycle, will the a/f still be slightly on the rich side? I may have to run a RRFPR to up it. I've hear the SVX has a higher pressure fuel pressure regulator, true? Fitment?
What about MAF issues? I have the BLACK MAF and was wondering if putting that on will solve anything?
Engine management I'm just running the STOCK EJ22T ECU.
MY99 GF4 5spd DIY Modified
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Cheapest (?) but easiest solution would be a 3-1 rrfpr.
going for 44 psi to (12 psi x 3 =) 80psi.... This would bump your injector to be about 500 cc.
going for 44 psi to (12 psi x 3 =) 80psi.... This would bump your injector to be about 500 cc.
Reddevil, Awaiting new heart, will it ever happen?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
No issues. I am running a very similar setup (minus header/up-pipe) and I run up to 16-18 psi with no problems. I have done NOTHING to the stock turbo fuel system other than a Walbro pump. WRX pump should have no problem either. I'm running the stock metal MAF right now, but I may switch to the plastic one cuase I have one laying around.
'91 5MT SS-TD04, WRX TMIC, Bosal twin dump, Spec LW flywheel/pressure plate, FCD, Walbro fuel pump-RIP
'93 5MT N/A wagon, over 400,000 miles!-Gone, parts lived on
'94 Auto SS-vf24, WRX TMIC, Bosal twin dump, Meth kit coming soon!-Now RWD!
'93 5MT N/A wagon, over 400,000 miles!-Gone, parts lived on
'94 Auto SS-vf24, WRX TMIC, Bosal twin dump, Meth kit coming soon!-Now RWD!
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humm......
I MAY want to push 16psi with this TD04...... but then it's the MAF that I'm afraid of the may make the injectors shoot out the wrong fuel; not enough or too much.
If the fueling is sufficient with this setup, I may want to do up a FCD and boost to 16psi. IF fueling isn't sufficient, then I'll just boost to 12.75psi.
Do I want to put on this plastic MAF for 16psi? It would lean out the a/f which would be oppisite of what I want with this TD04.
I MAY want to push 16psi with this TD04...... but then it's the MAF that I'm afraid of the may make the injectors shoot out the wrong fuel; not enough or too much.
If the fueling is sufficient with this setup, I may want to do up a FCD and boost to 16psi. IF fueling isn't sufficient, then I'll just boost to 12.75psi.
Do I want to put on this plastic MAF for 16psi? It would lean out the a/f which would be oppisite of what I want with this TD04.
MY99 GF4 5spd DIY Modified
+1Imprezive wrote:I think you are good, the TD04 doesnt flow that much more than a vf11.
'91 5MT SS-TD04, WRX TMIC, Bosal twin dump, Spec LW flywheel/pressure plate, FCD, Walbro fuel pump-RIP
'93 5MT N/A wagon, over 400,000 miles!-Gone, parts lived on
'94 Auto SS-vf24, WRX TMIC, Bosal twin dump, Meth kit coming soon!-Now RWD!
'93 5MT N/A wagon, over 400,000 miles!-Gone, parts lived on
'94 Auto SS-vf24, WRX TMIC, Bosal twin dump, Meth kit coming soon!-Now RWD!
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Junkyard, all Auto 90-94, and 92-94 5mt NA had them.
You will get a CEL though, but all you have to do is ground out the blue wire and it will go away.
You will get a CEL though, but all you have to do is ground out the blue wire and it will go away.
Reddevil, Awaiting new heart, will it ever happen?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
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In addition to the Leggies mentioned, it can be found on all 93-98 MAF based Imprezas and Legacies. I refer to it as the AA160 MAF. It's pretty damned universal and is what was also used on early WRX's and early Leggy Turbos in other markets...
1974 Porsche 914 Cam Am Limted Edition AKA the Bumble Bee
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!