Id love to take a shot at that stang

 

Do I hear a race coming on?

 

CALL OUT!

 

I'll run you at sunshine anytime your ready

8.89 is my best pass down there as of late.

 

itll be a good run at sunshine. But Id like to go from say a.....55-60 roll PM me man maybe we can meet up and run next Wed at Sunshine

 

pm'd

 

those times dont sound right, and if your dropping the fuel pressure that much, you better get an AF reading. if you dropped 3 tenths on the 60' you should be like 9.0....did you try bring it back up to stock pressure? just makes me wonder if your not going lean and causing some knock and its pulling timing.

granted i had an automatic, but i was doing 9.0-9.1 pretty consistantly with high 2.0 60's, bone stock 93...and i mean STOCK

 

my reg. is at 39 psi. Now when i took the reading on the stock 1 it was at 40. And explain the causing some knock thing If you could please. Work with me now because im still a newb to the chevy side.

 

He means it will start knocking from detonation from the lack of fuel pressure, which will pull timing and cause you to lose power.

And I'll see you at sunshine wed.

 

stock fuel pressure is 46psi on an LT1. and like vince said, lower fuel pressure, which means less fuel, means leaner conditions, which means hotter cylinder temps, which means possible pre-ignition and/or detonation, which means your knock sensor "hears" it, which means your ecu will pull timing, which means you will be making less power, which means you will go slower.