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My electrical autometer fuel gauge shows following numbers. I?ve tested it in 3rd, 4th and 5th gear.
at idle: arround 60 psi
at 1/3 WOT (0 psi boost): arround 80 psi
at WOT (6psi boost): The needle junps to 100 psi and above!! http://www.hostboard.com/ubb/frown.gif
I wonder if the numbers are too high.
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98? ITR
supecharged @ 6psi
wow.... do you have a FPR riser in there ?
i dont have an ITR or anything ... but mine is about 35 at idle... 40 during regular operation... and when i had the fuel pressure riser in there it would cruise upto 80psi while under boost.... this is all with my stock fuel pump in my 95 Teg..
That sounds too high, but I'm not 100% sure for the type-r.
On GSR's at 6psi, you want the 0psi (no vacuum) fuel pressure to be around 65psi. Some people go even lower, but I get the best results on my car at 65psi static pressure.
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Greg Holden
96 GSR, JSRC @6psi, AEM CAI/RSR 4-2-1/Greddy PE, Cartech 20005/Walbro GSS-342, KYB AGX/H&R OE Sport/ST 19mm Rear Swaybar
Best 1/4 ==> 13.937 @ 101.41mph
My JRSC Install Site
my R is at 35-40 idle, and at max boost its shoots up to 90psi, then tapers off at around 7k, where it goes as low as 83psi............ hopefully it helps... but austrian R, try adjusting the JR FPR to 35-40psi at idle,, i would try 40psi first, that might be a reason for your poor dynoes
THANXXXXX GUYS, I?ll try it tomorrow and I keep you updated!
AND after 3 hours telephone calls with assholes and motherfuckers I found a dyno which is equiped with an wide band O2 sensor.
I go there when I get (hope next week) my Apexi VTEC afc from importparts. http://www.hostboard.com/ubb/smile.gif
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98? ITR
supecharged @ 6psi
With those fuel pressures, you should definately be getting an ecu code. Is your check engine light on?
NO
I'm not sure if high fuel pressure will effect performance. If there really is a closed loop function of the O2 sensor, then the ECU would just shorten the injectors open time when the mixture reads rich, wouldn't it?
After adjusting the bolt of the JR FPR:
at idle arround 55 psi
1/3 WOT (0 psi boost): 65-70 psi
WOT: 90 psi
90 psi at WOT I think it?s okay, but the other numbers are too high, correct? But when I screw the bolt more out of the FPR I run in the rich side of stoich! NOT GOOD!!!
I could never get a JR FPR to idle below 56psi on my car. I think the outlet becomes a limiting factor with high flow pumps. If I loosened the adjuster any more, pressure wouldn't go lower, but it stopped RISING properly under boost!!!
The Cartech I have now can go lower. I idle at 51psi and max out at 94psi and this works very well for me.
It sounds like you have it set right.
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Greg Holden
96 GSR, JSRC @6psi, AEM CAI/RSR 4-2-1/Greddy PE, Cartech 20005/Walbro GSS-342, KYB AGX/H&R OE Sport/ST 19mm Rear Swaybar
Best 1/4 ==> 13.937 @ 101.41mph
My JRSC Install Site
I have the screw out all the way on my JR FPR and I can only get my idle down to 58 psi. The 3rd green LED is illuminated on my autometer a/f gauge at WOT. I'll be getting a cartech soon since my JR FPR is very erratic. I've seen my idle pressure fluctuate anywhere between 35 psi up to 65 psi.
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Fred G.
'97 Civic EX supercharged http://www.geocities.com/motorcity/track/4059
Beech 1900D driver...2,558 shp, 10,000+ ft./lbs. tq., top speed 331 mph :)
check and make sure the return line isn't pinched.mine was when i first installed the turbo and the pressures were about the same.
I drilled the recommended hole in my stock pressure regulator and now it idles at a little less than 30 psi, unless I turn the JR regulator up too high.
Oh no, not the VAFC!! http://www.hostboard.com/ubb/frown.gif I hope I dont see you posting about check engine lights in acouple of weeks. Hopefully your car will resond better to the VAFC then my did. (Talk about a major headache!)
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Mike Marsey
'98 ITR #0717
Supercharged!
RBoosted,
Just curious about your VAFC... what happened ?
PSICYCLE: Did you just bore out the outlet on the OE FPR? Let us know if the B&M works out.
Greg
PSICYCLE: You drilled a hole in your stock FPR??????
austrian type-R
Did you set your fuel pressure at 60psi at idle with the vacuum hose removed from our regulator as discussed?
Shawn
I emailed endyn staff and they sent me a drawing showing how to drill a hole in the regulator. It worked like a charm.
I'm using a bosche pump and 370 rce injectors. I hope to have a B&M adjuster on the car by Sunday so I can lower the pressure even more.
You drill a 30 thousands hole from the part that fits on the adapter into the part that the fuel exits from. It takes about two seconds to do when you take the regulator loose.
PSICYCLE: Do you think you could post that drawing showing how/where to drill?
PSIcycle: YEAH, that would be fine http://www.hostboard.com/ubb/smile.gif
MR. detail:no no. The vacuum hose IS pluged to the regulator and at idle I have now arround 50-55 psi (with the vaccuum hose disconnected 70-75 psi) and at WOT 90 psi. I don?t can get lower than 50 psi at idle with the FPR. With the lower fuel press I think I can feel a little difference.
Nice to see you on the board, Mr. Carlberg http://www.hostboard.com/ubb/wink.gif
No, no, no. You need to get the idle fuel pressure down to 60psi with the vacuum hose off our regulator. Doing it with the vacuum hose on is not going to show you what you need because the factory regulator is going to show fuel pressure higher than our regulator. Please indulge me and adjust it with the hose off.
I?ve tried it, but it won?t work. I pluged the hose off and screwed the bolt out, 1 turn, 2 turns, 5,6,7,8,9,11,,14...... AND my fuel press did not go under 70 psi at idle with the hose off. you get me? What could this mean. Bad regulator?
I am sorry, i didn't gather that from your post. Before I send another try this. With the car off screw the adjusting bolt all the way in until it bottoms out. Keep it there for 15 seconds or so and then back it out to where you started. Now start the car and see if you can get it to adjust properly. Again with the vacuum hose off.
Let me know.
I go into the garage and test drive my car...
With the vacuum hose off at idle 60 psi, with the vacuum hose on 52 psi at idle. At WOT 90 psi.
The first 2 ligts in rich and the last led in stoich, when I WOT. What do you mean?
I don't know how to post pictures. You can write the staff at too's site. If you just look into where the fuel goes into the regulator and where the fuel comes out, all you do is connect the two places with the small hole you drill. It leaks fuel past the valve in the regulator part.