Making the car more consistent

1320racer · 06-20-2011, 03:56 PM

Post all 3 time slips, both time trials and first round

JWhis · 06-20-2011, 06:37 PM

Phillip marvetz · 06-21-2011, 01:01 AM

Looks like the second time slip should have been the fastest/quickest to me. Does the direction of the wind change much? Is the carb a vacuum secondary or a double pumper?

JWhis · 06-21-2011, 08:07 AM

it's a double pumper and no i don't notice it changing much. I'm starting to think it's just me in the car. Maybe i am letting it bother me too much.

Phillip marvetz · 06-21-2011, 09:41 AM

The carb is smaller than I would use, If the weather changes it will affect the small carb more. Does it have a hydraulic cam?

Shawn Blair · 06-21-2011, 01:14 PM

Just a suggestion.....Make sure you stage the car the same every run and the pedal to the left of the throttle is your friend! What viscosity oil are you running?

JWhis · 06-21-2011, 03:01 PM

The cam is a old hemi grind cam. It was part of Dad's old small block stuff he put in the motor, but i don't know anything about it. Oil is 10W 30. I have a 2 day race this weekend i'm going to do some more testing hopefully it's just me flipping out.

04GTOMan · 07-01-2011, 11:24 PM

is there a metter that i can buy for air temp and denisty

n5ifi · 10-12-2011, 12:06 PM

The carb size is fine. You do not need a larger one.
What's the list number on the carb?
What track are you running at?
Do you have any idea what the DA was on any of those passes?

Alan Sargent · 10-14-2011, 02:31 AM

Are you running slicks? If not, I'd suggest you try them.
What's the camshaft duration @ .050? If it's got any kind of performance camshaft, you should be turning it more than 5000 rpm. It won't be consistent if it isn't revved.

06-20-2011, 03:56 PM	#1
1320racer VIP Member Join Date: Nov 2007 Location: New Jersey Posts: 2,628 Likes: 160 Liked 759 Times in 379 Posts	Re: Making the car more consistent Post all 3 time slips, both time trials and first round

06-20-2011, 06:37 PM	#2
JWhis Junior Member Join Date: Mar 2011 Location: Indianapolis,IN Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Re: Making the car more consistent __________________ Jason Whisman

06-21-2011, 01:01 AM	#3
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: Making the car more consistent Looks like the second time slip should have been the fastest/quickest to me. Does the direction of the wind change much? Is the carb a vacuum secondary or a double pumper? __________________ 2009 V/SA Record Holder

06-21-2011, 08:07 AM	#4
JWhis Junior Member Join Date: Mar 2011 Location: Indianapolis,IN Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Re: Making the car more consistent it's a double pumper and no i don't notice it changing much. I'm starting to think it's just me in the car. Maybe i am letting it bother me too much. __________________ Jason Whisman

06-21-2011, 09:41 AM	#5
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: Making the car more consistent The carb is smaller than I would use, If the weather changes it will affect the small carb more. Does it have a hydraulic cam? __________________ 2009 V/SA Record Holder

06-21-2011, 01:14 PM	#6
Shawn Blair Member Join Date: Dec 2007 Location: Everson, WA. Posts: 122 Likes: 1 Liked 0 Times in 0 Posts	Re: Making the car more consistent Just a suggestion.....Make sure you stage the car the same every run and the pedal to the left of the throttle is your friend! What viscosity oil are you running? __________________ Shawn Blair 6383 SS 634 STK Last edited by Shawn Blair; 06-21-2011 at 01:23 PM.

06-21-2011, 03:01 PM	#7
JWhis Junior Member Join Date: Mar 2011 Location: Indianapolis,IN Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Re: Making the car more consistent The cam is a old hemi grind cam. It was part of Dad's old small block stuff he put in the motor, but i don't know anything about it. Oil is 10W 30. I have a 2 day race this weekend i'm going to do some more testing hopefully it's just me flipping out. __________________ Jason Whisman

07-01-2011, 11:24 PM	#8
04GTOMan Junior Member Join Date: Jun 2011 Posts: 17 Likes: 0 Liked 0 Times in 0 Posts	Re: Making the car more consistent is there a metter that i can buy for air temp and denisty

10-12-2011, 12:06 PM	#9
n5ifi Junior Member Join Date: Aug 2010 Posts: 22 Likes: 0 Liked 0 Times in 0 Posts	Re: Making the car more consistent The carb size is fine. You do not need a larger one. What's the list number on the carb? What track are you running at? Do you have any idea what the DA was on any of those passes?

10-14-2011, 02:31 AM	#10
Alan Sargent Junior Member Join Date: Jan 2010 Location: North Georgia Posts: 33 Likes: 0 Liked 0 Times in 0 Posts	Re: Making the car more consistent Are you running slicks? If not, I'd suggest you try them. What's the camshaft duration @ .050? If it's got any kind of performance camshaft, you should be turning it more than 5000 rpm. It won't be consistent if it isn't revved.