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#1 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() I have my top end tore down, and figure this would be a good time to upgrade my FPR.
I currently have the Crane, but Im not real happy with it. It only allows me to go down to around 33 PSI, and just wont go any lower. Any suggestions? I understand the Kirbans are good? |
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#2 |
gear banger
Join Date: Aug 2000
Location: CHICAGO
Posts: 1,144
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![]() I had a Kirben fpr for a long time and it never gave me any problems. I never tried to go below 33 before though. My Aermotive fpr lets me go down past 33, but it is a fenderwall mounted one.
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79 Hatch: NA 347, Stage 2 Canfield Heads, Victor JR. Intake, Blueprinted Holley 750 HP, Solid Roller Cam, Shooting for 10's on motor 93 LX: Tremec, dual friction clutch, fms flywheel, Hedman shorties, O/R H-pipe Ricer hater's club member #49 |
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#3 |
Registered Member
Join Date: Jul 2001
Location: West Bloomfield, MI
Posts: 391
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![]() mach 1: you dont like your crane? why would you want to go below 33? the reason i ask is because im not sure if i should pay $15 for one from a guy i know.
if you could let me know a little about how it performas and your setup that would be great. thanks, adam
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90 GT black/ grey leather ported GT-40 heads w/ 1.7RR, Cobra intake w/ ported lower, 24# injectors, 190LPH pump, 75mm Pro-M MAF, 65mm TB, K&N panel, BBK long tubes, Off road H-pipe, 2 ch. Flowmaster, Black magic fan, Kirban FPR, 180 deg. T-stat, 3.73's, Steeda Tri-Ax, 130 amp alt. Accell 8.8 race wires/cap/rotor, motorcraft plugs, Factory Five suspension, etc etc etc.... http://avbcon12.stangnet.com |
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#4 |
Registered Member
Join Date: Oct 1998
Location: Suburban Chicago, Hanover Park
Posts: 695
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![]() I just got the Kirban and I like it, plus it's only $75 and it's rebuildable. I had the Aeromotive and the BBK and sent 'em both back. The Aeromotive didn't fit in the stock location (too big, couldn't get the tb back on) and I'm not a big fan of BBK.
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#5 |
Resident Redneck
Join Date: Jan 2002
Location: Cecil County, MD
Posts: 165
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![]() I just got a Kirban also, $89 from JD's Performance. It adjusts from 30 - 100 psi.
-Billy
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95' GT: 306, XL Ross Pistons, Ultra Lite H-beam Rods, Forged Scat Crank, 28oz Romac, 28oz JW flexplate, FTI ported RPM II intake, FTI ported AFR 165's, FTI custom cam, 75mm BBK Throttle body, 80mm Pro-M, 4800 PI stall, PA Super Comp AODE, Strange 33 spline race axles, Strange ultra lite spool, Motive lite 4.30's, Strange rear race brakes, Mega bite seniors, double adjustable uppers w/spherical bushings, Racecraft anti-roll bar, LPW rear end girdle, Metco d/s loop, A9L conversion, AFM PMS |
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#6 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() Green9550,
jdsperformance has the kirban advertised for $65.00 Why did you pay $89.00? Avbcon12, I think my car might be running rich, so I wanted to try a lower pressure. The crane goes down to around 32 psi. I paid $50.00 for my crane a few years ago, and now they are $72.00 from summit. Its ok, I just like the billet ones better, and was looking for something with more room for adjustment. If you can score one for $15.00, I would go for it. |
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#7 |
Resident Redneck
Join Date: Jan 2002
Location: Cecil County, MD
Posts: 165
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![]() I have a '95 mustang. The price is different for 86-93 mustangs. That is the cheapest price I have seen.
-Billy
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95' GT: 306, XL Ross Pistons, Ultra Lite H-beam Rods, Forged Scat Crank, 28oz Romac, 28oz JW flexplate, FTI ported RPM II intake, FTI ported AFR 165's, FTI custom cam, 75mm BBK Throttle body, 80mm Pro-M, 4800 PI stall, PA Super Comp AODE, Strange 33 spline race axles, Strange ultra lite spool, Motive lite 4.30's, Strange rear race brakes, Mega bite seniors, double adjustable uppers w/spherical bushings, Racecraft anti-roll bar, LPW rear end girdle, Metco d/s loop, A9L conversion, AFM PMS |
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#8 |
News Editor
Join Date: Apr 1999
Location: Concord, CA
Posts: 2,101
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![]() I can't get my Kirban to go lower than 42 with my 255lph intank pump and T-Rex.
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Scott Halihan, News Editor The MustangWorks Magazine 1994 Supercharged Mustang Cobra Rebel Racing. Home of Bay Area Mustangs |
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#9 | |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() Quote:
Interesting, they say from 30 psi to 100 psi. Maybe thats with stock fuel flow? |
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#10 |
News Editor
Join Date: Apr 1999
Location: Concord, CA
Posts: 2,101
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![]() I think so Mach1. Originally I thought my Kirban was bad, and then I started getting dropping fuel perssure. It turns out it was bad, but I have the adjustment screw all the way out and I can't get it low enough. Oh well I guess I can always increase my timing!
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Scott Halihan, News Editor The MustangWorks Magazine 1994 Supercharged Mustang Cobra Rebel Racing. Home of Bay Area Mustangs |
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#11 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() say what?
Was the kirban bad or wasnt it? |
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#12 |
News Editor
Join Date: Apr 1999
Location: Concord, CA
Posts: 2,101
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![]() Heh Ooops didn't clarify enough. The Kirban went bad a couple of days later.
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Scott Halihan, News Editor The MustangWorks Magazine 1994 Supercharged Mustang Cobra Rebel Racing. Home of Bay Area Mustangs |
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#13 |
Registered Member
Join Date: Oct 1998
Location: Rogers, MN
Posts: 2,089
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![]() Mach 1,
I don't believe you should need to go below 33 psi. I know we've hashed this out over and over again, but the computer's limitation of fuel control isn't how little it can provide but how much it can provide. Your biggest concern should be how high the fuel pressure can go. When you set your fuel pressure, it should be with the engine off and the fuel pump test connector grounded to force the fuel pump to stay on. Set it to 39 psi. Remove the ground on the fuel pump test lead and start the engine with the fuel pressure gauge still hooked up. Has the pressure dropped significantly? If not, there may be a vacuum leak in the FPR preventing the diaphragm from moving. If it does, hook up a vacuum gauge to a vacuum source as then move the throttle lever. Does the fuel pressure go up as the vacuum drops? If not, there may something wrong with the FPR. If you confirm that the FPR is working properly, I would then look at sensors. 02, ACT, ECT, and MAF in that order.
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351W 89 Mustang GT Convertible |
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#14 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() You may be on to something with the ACT sensor. I pulled my intake the other day, and the ACT sensor (that is the one in the lower intake, right? air charge temperature ?) didnt look good at all. Had large deposits of black crud all over it. I guess I will replace it when I put the motor back together. will be awhile, Im gonna pull my heads and port them.
I know my vacuum to the FPR is working, and I know the O2 and MAF should be good. |
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#15 |
Registered Member
Join Date: Oct 1998
Location: Rogers, MN
Posts: 2,089
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![]() Yep, that's the ACT. I had a problem where I couldn't drive my car 20 feet without it stalling. It turned out that my ACT looked like what you described.
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351W 89 Mustang GT Convertible |
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