Is my fuel system adequate?
Is my fuel system adequate? For some reason my car fell on its face at 5800 rpm on the dyno. My first thought was valvetrain, but it isnt. My second thought is fuel. Here is the setup
402 LS2
TFS 225s
Polluter cam
FAST 92/ Nick Williams 92mm TB
Racetronix in tank pump with the hotwire kit
Bosch injectors resized to 42 lbs by FIC
LS1 fuel rails
Redline will be set to 7000
Im looking to make about 540-570 rwhp and 550-580 ft lbs.
Are the injectors to small? Do I need another pump?
402 LS2
TFS 225s
Polluter cam
FAST 92/ Nick Williams 92mm TB
Racetronix in tank pump with the hotwire kit
Bosch injectors resized to 42 lbs by FIC
LS1 fuel rails
Redline will be set to 7000
Im looking to make about 540-570 rwhp and 550-580 ft lbs.
Are the injectors to small? Do I need another pump?
Last edited by Pseudonym; Jun 2, 2011 at 10:58 AM.
thanks for the reply
I brought it to Tune Time and he said he thinks its in the valvetrain, but I checked the pushrod length, valve springs, and lifters. I was hoping it didnt have enough fuel.
Im sure he did log the fuel pressure but I dont have the logs. I guess I'm going to pull the front cover off and see if the cam is off. (TTP installed it shortly before they closed)
On the graph there is a vertical line about a quarter inch thick that drops down to the bottom of the graph for power and for air fuel. It says it went from 12.7 to 11.1, but it also says my minimum power was -119hp -140 ft lbs so Im not sure how accurate that is.
I brought it to Tune Time and he said he thinks its in the valvetrain, but I checked the pushrod length, valve springs, and lifters. I was hoping it didnt have enough fuel.
Im sure he did log the fuel pressure but I dont have the logs. I guess I'm going to pull the front cover off and see if the cam is off. (TTP installed it shortly before they closed)
On the graph there is a vertical line about a quarter inch thick that drops down to the bottom of the graph for power and for air fuel. It says it went from 12.7 to 11.1, but it also says my minimum power was -119hp -140 ft lbs so Im not sure how accurate that is.
Last edited by Pseudonym; Jun 2, 2011 at 01:37 PM.
