Stall when coasting

Go down

Stall when coasting

Post by JF74chevelle on Sat Jun 30, 2018 9:11 pm

I have a weird issue. My set up is a Holley 650 DP. Timing is 20 Intial. Idles around 800 rpm. Edelbrock rpm air gap intake with a 2Ē 4 hole carb spacer.

Hereís the problem when Iím driving around 45 mph and downshift to third to slow down then to second and Iím coming down Iíll push in the clutch to coast to the red like but the car goes extremely lean on AFR gauge and the RPMs plummet and I have to tap the gas to keep it from stalling. Iím at a loss. The floats are set right at the bottom of the sight glass. Mix screws are 1 1/2 turns out. Iím confused
avatar
JF74chevelle
G3GM Member
G3GM Member

Street Cred : 0

Back to top Go down

Re: Stall when coasting

Post by Joe73 on Sun Jul 01, 2018 2:30 am

Stock idle rpm for a manual is 900 rpm. So boost that up a bit and see what happens. Also, I never downshift to come to a stop. I don't even clutch it to get it to neutral. If I'm going to stop, I use the brakes like intended. I'd rather change them instead of a throw out bearing or clutch. Just my 2 cents.
avatar
Joe73
Donating Member
Donating Member

Street Cred : 70

Back to top Go down

Re: Stall when coasting

Post by BBMALIBU on Wed Jul 04, 2018 11:26 am

JF74chevelle wrote:I have a weird issue. My set up is a Holley 650 DP. Timing is 20 Intial. Idles around 800 rpm. Edelbrock rpm air gap intake with a 2Ē 4 hole carb spacer.

Hereís the problem when Iím driving around 45 mph and downshift to third to slow down then to second and Iím coming down Iíll push in the clutch to coast to the red like but the car goes extremely lean on AFR gauge and the RPMs plummet and I have to tap the gas to keep it from stalling. Iím at a loss. The floats are set right at the bottom of the sight glass. Mix screws are 1 1/2 turns out. Iím confused

Is the spacer a 4 hole that tapers open or 4 hole from top to bottom?

You can set the float levels a little higher than right at the bottom of the sight glass.

I have mine set 25% up from bottom of sight glass (its also a Pro Systems 1000 cfm).
avatar
BBMALIBU
G3GM Member
G3GM Member

Street Cred : 2

Back to top Go down

Re: Stall when coasting

Post by Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum