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#1
06-11-2012, 11:29 AM
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nearly stalling out on low speed turns
As I get through my long list of quirks in my car, I come to this one. This is weird, but my car wants to stall when circling my parking deck at work. It does it a little if I hard brake at stoplights and such, but seriously, around a turn at 10mph? WTH?
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#2
06-11-2012, 11:37 AM
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What carb are you running? Do you have a wide band O2 set up? I had similar issues running a quick fuel 850 carb. I read somewhere that the jet extensions in rear would cause the braking problems. I removed mine with no change. I then dropped the float levels and that fixed the problem braking and turning.
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1971 Base Firebird..505ci IA 2A Round port E-heads by Butler 348 cfm.. Comp street SR 266/272@.050 Victor intake/Quick Fuel Q950. 1 7/8" Dougs headers..3" mandrel bent exhaust with Hooker Max Flow mufflers, T-350 well built with 10" 4000 stall nitrous Continental converter..3.73 posi . Caltracs and 10" slicks. Belt driven water pump, alternator, Pwr steering and brakes,Flex fan. 11:1compression, straight 93 octane pump fuel. 10.35 @ 129.88 with 1.45 60ft N/A at 3700lbs race weight. |
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#3
06-11-2012, 11:39 AM
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Reason I ask about the wideband, I run one and was able to see that it was going fat before stalling. Very good system for tuning and these types of issues. Got mine from Summit for about $250.
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1971 Base Firebird..505ci IA 2A Round port E-heads by Butler 348 cfm.. Comp street SR 266/272@.050 Victor intake/Quick Fuel Q950. 1 7/8" Dougs headers..3" mandrel bent exhaust with Hooker Max Flow mufflers, T-350 well built with 10" 4000 stall nitrous Continental converter..3.73 posi . Caltracs and 10" slicks. Belt driven water pump, alternator, Pwr steering and brakes,Flex fan. 11:1compression, straight 93 octane pump fuel. 10.35 @ 129.88 with 1.45 60ft N/A at 3700lbs race weight. |
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#4
06-11-2012, 12:18 PM
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No wideband yet. I'm running a QuickFuel 735VS. Maybe it's something weird with QFT carbs. I guess I'll pull it and see if there's a jet extension in the rear. So leave the one in front? Also, where did you put your floats? QuickFuel says halfway up the sight glass.
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#5
06-11-2012, 03:29 PM
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If you have power steering it will also pull down the rpm to the point of stall if idled too slow.
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#6
06-11-2012, 05:04 PM
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idle is around 900-1000, would the power steering pump really pull it down that far?
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#7
06-11-2012, 06:01 PM
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Quote:
Jim
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65 Catalina sedan. Allen Thomas Performance 495. KRE Heads at 310cfm ported by SD Performance, ProSystems Dominator carb on ported Victor intake, P-Dude custom grind hydraulic roller, MSD ignition, 3.50 Moser/Ford rear. F-Glass front bumper by son Rob, rear by the old man and joint effort for trunk lid. 3950# w/driver. Best of 9.5761/139 on 175 shot, 6.01 /114 in 1/8. |
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#8
06-11-2012, 07:12 PM
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to check the power steering. just put it in gear and turn your wheel all the way and see if it wants to stall. if not check your float level on the carb. or just bump the idle up a 200 rpms... good luck
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1970 firebird, 468, e heads, |
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#9
06-11-2012, 08:12 PM
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For a test - pull the power steering belt and go for a ride. Eat Wheaties first.
Jim
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65 Catalina sedan. Allen Thomas Performance 495. KRE Heads at 310cfm ported by SD Performance, ProSystems Dominator carb on ported Victor intake, P-Dude custom grind hydraulic roller, MSD ignition, 3.50 Moser/Ford rear. F-Glass front bumper by son Rob, rear by the old man and joint effort for trunk lid. 3950# w/driver. Best of 9.5761/139 on 175 shot, 6.01 /114 in 1/8. |
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#10
06-12-2012, 10:33 AM
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I had my fuel level half way up the glass before fixing the problems with stopping and turning. Mine likes to be at the bottom of the sight glass. I would not worry about the jet extensions at all. They did nothing to help my stalling. Just lower the float level to bottom of sight glass and give it a try. If it cures the turns but still stalls with moderate fast stops, then try the jet extensions. If it is not a drag race carb, it should not have the jet extensions.
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1971 Base Firebird..505ci IA 2A Round port E-heads by Butler 348 cfm.. Comp street SR 266/272@.050 Victor intake/Quick Fuel Q950. 1 7/8" Dougs headers..3" mandrel bent exhaust with Hooker Max Flow mufflers, T-350 well built with 10" 4000 stall nitrous Continental converter..3.73 posi . Caltracs and 10" slicks. Belt driven water pump, alternator, Pwr steering and brakes,Flex fan. 11:1compression, straight 93 octane pump fuel. 10.35 @ 129.88 with 1.45 60ft N/A at 3700lbs race weight. |
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