Re: car stumbles in the air!
 

do you have the black tape on the secondary metering rod slots?

Re: car stumbles in the air!
 

Bob, No.

Re: car stumbles in the air!
 

jonesracing you have a PM

Re: car stumbles in the air!
 

Got this from a friend and fellow racer, a really good racer. Check the fuel pump. There was a car with this exact problem, and what was happening was that under G's from the launch, the armature of the fuel pump would move and short out. It did not show on the fuel pressure gauge. They fought this problem all year, and a new fuel pump fixed the car for the last time trial at the last race of the season.

Re: car stumbles in the air!
 

This is for real......check the main wiring terminal for loose connections...check them with a wrench---not your hand......when I let go of the tranny brake the connection would momentarily lose connection then reconnect when it hit the ground off the wheelstand.......do not underestimate this happening, do not trust checking with your hand I say again....I felt stupid when I started replacing parts and found out a nut needed WRENCH TIGHTNESS.

Re: car stumbles in the air!
 

x2!!

Re: car stumbles in the air!
 

If the rain stays away we are going to try things out tonight!!

Re: car stumbles in the air!
 

First thing you should probably do is see if a fellow racer with a similiar combo will let you borrow his carb. for one pass so that you can make sure that is what is really causing the problem before you try chasing down lose wires or any other number of things that could be causing this.Good luck ,you'll find it.

Re: car stumbles in the air!
 

Well after 3 weeks of Bad Luck we went to the track and found the issue. Thanks for all your guys help. It turn out to be the button!!!

Re: car stumbles in the air!
 

what button?