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#1065154 - 02/23/20 05:05 PM Stall on tight S corner  
Joined: May 2007
Posts: 3
Lugan87 Offline
10+ Year
Lugan87  Offline
10+ Year
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Joined: May 2007
Posts: 3
Seattle WA
Hi all, yesterday I attended a car show at a local track which concluded with a few parade laps around their race track. With my wife and son along for the ride, we had a great time. Being almost at the end of the "parade" of cars, with ample space between us I was able to drive a bit more freely. Admittedly my tank was at the half way mark, but mid through a down hill tight S, off the throttle, my car decides to stall. I immediately cranked and restarted and continued through. On lap 2, same location, I dropped to neutral, gave partial throttle, braked with my left foot, then back to drive, on the throttle out of the corner. Not ideal, but she didn't stall.

So I'd love advice on where I might start with diagnosis. Also, advice on alignment suggestions for street, occasional track would be awesome.

Car has an Edelbrock crate 350 (zz4 short block, RPM heads, Edelbrock carb and very loppy cam.
Hotchkiss control arms, stock spindles, Baer brakes, 235/45/18 tires.

Thanks in advance!

#1065377 - 03/11/20 04:44 AM Re: Stall on tight S corner [Re: Lugan87]  
Joined: Jan 2000
Posts: 4,987
mmc427ss Offline
20+ Year
mmc427ss  Offline
20+ Year
Member

Joined: Jan 2000
Posts: 4,987
Pottstown, Pa
First place I'd look at would be the float levels in the carb. Also which Edel carb it is, Performer or Thunder series.
Bob

#1067574 - 08/09/20 01:54 AM Re: Stall on tight S corner [Re: Lugan87]  
Joined: Dec 2003
Posts: 4,129
SS Ninja Offline
15+ Year
SS Ninja  Offline
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Joined: Dec 2003
Posts: 4,129
Stoughton, MA
Second place to look would be the fuel filter. Had one that got gummed up since my car sits over the winter and that resulted in stalling during autocross.


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#1068173 - 10/01/20 04:57 AM Re: Stall on tight S corner [Re: Lugan87]  
Joined: May 2007
Posts: 3
Lugan87 Offline
10+ Year
Lugan87  Offline
10+ Year
New Member

Joined: May 2007
Posts: 3
Seattle WA
Hi all, following up on this old thread, I brought the car to a local carb specialist / dyno / hot rod shop who found that the float levels were too high and fuel pressure too high as well at 9lbs. They installed an inline pressure regulator which seems to help. I'll need to drive it more to see it's resolved. mmc427ss, it's a Performer series. Thanks!

#1068175 - 10/01/20 06:33 AM Re: Stall on tight S corner [Re: Lugan87]  
Joined: Jan 2000
Posts: 4,987
mmc427ss Offline
20+ Year
mmc427ss  Offline
20+ Year
Member

Joined: Jan 2000
Posts: 4,987
Pottstown, Pa
Not to many carbs happy at 9 psi. Some mechanical pumps will make 9 psi. The Performers can tolerate a little higher pressure, 7 ish from my experiences. With all carbs float height and design, needle/seat size, pressure, all effect how well they perform.

I run a dead head regulator at the carb with 6 psi at idle on a Qjet with a big needle and seat.
A similar engine build as yours in a 67 Camaro, 200R, 4.11. ZZ4 shortblock, AFR 190 heads, Comp roller we had the Performer on a Edel Airgap.. I only got to play with the tune a dozen times or so, we were never happy with the carb. Pulled the intake and install a Qjet Edel Performer and I built him a Qjet. Another reason to go to a Qjet was for the 200R TV hookup. Never happy with the conversion adapting it to the Performer.

Another friend has a 68 Dart with a 440, vintage dual quad Carter AVS carbs. He's been playing with those Carters carbs for 40 years. His old Carters work pretty gooder.

When my son was in high school, 30 years ago, we bought a 76 Z28. It had sat for a while in a back alley and got water in the tank. This was before ethanol was the cause of water in the tank. It started fine when I did the initial startup, idle fine, it had a cam. Later we came back for me to drive it a mile home. Sucked that water in the tank into the carb, made it a difficult two footer to keep it running across town. Pulled the tank down and cleaned the entire system. Bought a kit and rebuilt the Edelbrock performer. Once we got it running back up to par we knew we had prize for not much money . It had a Crower Cam, good headers with a good 2 1/2" exhaust. edel intake and Performer, shift kit in the TH350, and 3.90 gears in the 9" rear. The car was a previous build with a Lenco 5 spd, 9" and a pretty peppy 350. The kid we bought the car couldn't drive stick so a garage did an even up swap, entire Lenco stick setup for a TH 350 install. The kid lost his licence for a year, a 100 in a 35 will do that. That's when we got the car.

I can honestly say that Performer carb with the rest of the combo was VERY responsive, snappy. The car was quick for a 17 year old kid. Unfortunately two things made us part with that car. One axle seal leaked, twice i put a bearing and seal in it, then a new axle, then i paid someone to do it thinking I missed something, it continued to leak. more than three strikes and car goes or we put a 12 bolt in it. The second thing was my son was now daily driving 60 miles a day to Lincoln Tech. Not an economy car to start, 3.90s, and an 18 year old with a need for speed and I was going broke funding the gas bill. Time for a different vehicle. That was 20 years ago, he'd like to have that car back.
That experience with that very early production Edel Performer was very good. I just rebuilt that carb, no changes except insuring it was perfectly clean and set up correctly. But someone may have been in the carb a couple owners ago.

Edel bought Carter many years ago and got Carter's piece of the Qjet production in the deal. When Rochester couldn't fill the demand for Qjets Carter then filled the voids. Those Qjets say Carter on the side instead of Rochester. The early production of the Performers and also the line of replacement Qjets Edelbrock sold for several years probably came from the original Carter plant. Not sure where the Edel carbs are made today.

When we were playing with the carb on that 67 Camaro I read everything I could find on the Edel carbs. Mostly good for the Performer with limitation on performance. great for your hopped up 350 pickup truck, a bolt on. Mileage wise reports all over the place as expected. Would say overall most opinions were ok or better.
The Edel Thunder carbs are another story, seems they get bad reviews.

HTH
Bob


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