383 intake / fuel
Thread Starter
Pro
Joined: Oct 2004
Posts: 644
Likes: 15
From: Clarksville Tennessee
383 intake / fuel
I'm having some trouble getting my car to run in the quarter mile as it should on the top end. I have a 383 with 24lb f/ inj. and stock fuel pump. Do I need to install a hi pressure fuel pump.
My car isn't getting over 98 mph@ 13.7... 60' 1.91.... in the Quarter.
rssshen vette
My car isn't getting over 98 mph@ 13.7... 60' 1.91.... in the Quarter.
rssshen vette
Thread Starter
Pro
Joined: Oct 2004
Posts: 644
Likes: 15
From: Clarksville Tennessee
Originally Posted by DieL
How do you know its fuel? There could be a million things that could cause the car not to run right. Did you have it tuned at all?
Pro
Joined: Feb 2004
Posts: 641
Likes: 16
From: O'Fallon MO
I have a new 383 L98 with super ram and it was running too lean and we had to back off the timing to keep from pinging. I'm waiting for a new fuel pump and then back on the dyno. I seem to remember getting a couple of dyno pulls and it was lean back then. Probably been needing a bigger pump all along.
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
Originally Posted by DieL
How do you know its fuel? There could be a million things that could cause the car not to run right. Did you have it tuned at all?
But if you think it is a fuel related problem, you need to hook up a fuel pressure gauge, tape it to the windshield, and go for a WOT run to see where the pressure is at. Best to do this on the track with a passenger who can monitor the gauge while you drive.
